General Rules Motor Rules Approved Bodies Can-Am Formula 1 GT Coupe – Pro GT Coupe – FK Stock Car Can-Am Plus Anglewinder

Please visit the IRRA® website for updates as they occur. www.irraslotracing.com

Quick Reference This is a quick reference of the major specifications for each class.

Can-Am

• Gears = Production only; no modifications except sanding • Total Weight = 100 grams minimum diameter • Chassis Width = 3.125” maximum • Body Height, Lotus 49 style = 1.375” maximum • Body Width = 3.250” at the wheel arches • Front Wings, Lotus 49 style = Width across front wings 2.875" • Body Thickness = .010" with .007" minimum on sides maximum. • Track Width, F & R = 3.125” • Body Height, All Others = 1.125” maximum • Chassis Clearance, F & R = .015” / .050” minimum • Front Grille = .125” (1/8”) • Front Tire Diameter = .750” minimum • Driver Figure / Interior = All bodies must contain a painted (at • Front Tire Width = .225” minimum least two colors), fully-molded, three-dimensional interior • Rear Tire Diameter = .8125” minimum comprising a driver (helmet, shoulders, and arms), a steering • Rear Tire Width = .810” maximum wheel, and cockpit representation. An interior may be mounted in • Motor Type = PS4002B, PS4002B-B, Topline or JK Falcon 7, JK any manner as long as it fully covers the chassis when viewed Hawk Retro FK, TSR D3, Slick 7 from above. Interiors are to be mounted with the driver facing in • Gears = Production only; no modifications except sanding the proper direction. diameter • Body Height = 1.375” maximum • Front Grille = .063” (1/16”) except Ti22 • Spoiler Size / Height = no wider than body; .500” maximum GT Coupe - Pro • Driver Figure / Interior = All bodies must contain a painted (at least two colors), fully-molded, three-dimensional interior comprising a driver (helmet, shoulders, and arms), a steering wheel, and cockpit representation. An interior may be mounted in any manner as long as it fully covers the chassis when viewed from above. Interiors are to be mounted with the driver facing in the proper direction.

• Total Weight = 110 grams minimum • Chassis Width = 3.125” maximum Formula 1 • Body Width = 3.250” at the wheel arches • Body Thickness = .010" with .007" minimum on sides • Track Width, F & R = 3.125” • Chassis Clearance, F & R = .015” / .050” minimum • Front Tire Diameter = .750” minimum • Front Tire Width = .225” minimum • Rear Tire Diameter = .8125” minimum • Rear Tire Width = .810” maximum • Motor Type = PS4002B, PS4002B-B, Topline or JK Falcon 7, JK Hawk Retro FK, TSR D3, Slick 7 • Total Weight = 100 grams minimum Gears = Production only; no modifications except sanding • Chassis Width = 1.625” maximum • diameter • Body Width = 1.685” excluding front wings if present • Body Height = 1.375” maximum • Minimum Wheelbase = 3.875” • Front Grille = .063” (1/16”) • Maximum Wheelbase = 4.250” • Spoiler Size / Height = no wider than body; .500” maximum • Body Thickness = .010 with .007 minimum on sides • Rear Window = Painted, tinted, or covered with interior. • Track Width, F & R = 3.250” • Driver Figure / Interior = All bodies must contain a painted (at • Chassis Clearance, F & R = .015” / .040” minimum with .790" tire least two colors), fully-molded, three-dimensional interior diameter. .050” rear clearance with .812 tire at designated events. comprising a driver (helmet, shoulders, and arms), a steering Front Tire Diameter = .750” minimum • wheel, and cockpit representation. An interior may be mounted in • Front Tire Width = .375” minimum any manner as long as it fully covers the chassis when viewed • Rear Tire Diameter = .790” minimum or .812” minimum if from above. Interiors are to be mounted with the driver facing in announced by track owner. the proper direction. • Rear Tire Width = .810” maximum • Motor Type = PS4002B, PS4002B-B, Topline or JK Falcon 7, JK Hawk Retro FK, TSR D3, Slick 7

Quick Reference – effective January 1, 2015 – © IRRA® GT Coupe - FK Can-Am Plus

• Racer Eligibility At IRRA® Premier events, racers on the IRRA® "GTC-PRO Only" list may enter only GTC-PRO races. Racers not • Total Weight = None on the list may only enter the GTC-FK race. • Chassis Width = 3.125” maximum • Total Weight = 110 grams minimum • Body Width = 3.250” at the wheel arches • Chassis Width = 3.125” maximum • Body Thickness = .010" with .007" minimum on sides • Body Width = 3.250” at the wheel arches • Track Width, F & R = 3.125” • Body Thickness = .010" with .007" minimum on sides • Chassis Clearance, F & R = .015” / .047” minimum • Track Width, F & R = 3.125” • Front Tire Diameter = .600” minimum • Chassis Clearance, F & R = .015” / .050” minimum • Front Tire Width = .225” minimum • Front Tire Diameter = .750” minimum • Rear Tire Diameter = None • Front Tire Width = .225” minimum • Rear Tire Width = .810” maximum • Rear Tire Diameter = .8125” minimum • Motor Type = PS4002 FK • Rear Tire Width = .810” maximum • Gears = No restrictions • Motor Type = Topline or JK Falcon 7, JK Hawk Retro FK, TSR • Body Height = None. No material, including flash plastic from the D3, Slick 7 vacuum-forming process, may be added to the vertical portion of • Gears = Production only; no modifications except sanding the body to increase body height diameter • Spoiler Size / Height = no wider than body; .500” maximum • Body Height = 1.375” maximum • Driver Figure / Interior = Fully molded, minimum two-color, • Front Grille = /.063” (1/16”) presentably / realistically painted, no paper interiors • Spoiler Size / Height = no wider than body; .500” maximum • Rear Window = Painted, tinted, or covered with interior. • Driver Figure / Interior = Fully molded, minimum two-color, presentably / realistically painted, no paper interiors

Stock Car Retro Anglewinder

• Total Weight = 120 grams minimum • Total Weight = 100 grams minimum • Chassis Width = 3.00” maximum • Chassis Width = 3.125” maximum • Wheelbase = 4.50” minimum • Body Width = 3.250” at the wheel arches • Guide Lead = .750 • Body Thickness = .010” with .007” minimum on sides • Body Width = 3.250” at the wheel arches • Track Width, F & R = 3.125” • Body Thickness = .015 with .010 minimum on sides • Chassis Clearance, F & R = .015” / .050” minimum • Track Width, F & R = 3.00” maximum • Front Tire Diameter = .750” minimum • Chassis Clearance, F & R = .050” / .050” minimum • Front Tire Width = .225” minimum • Tire Diameter, F & R = .8125” minimum • Rear Tire Diameter = .790” minimum • Front Tire Width = .375” minimum • Rear Tire Width = .810” maximum • Rear Tire Width = .810” maximum • Motor Type = PS 4002B, PS4002B-B, Topline or JK Falcon 7, JK • Motor Type = Topline or JK Falcon 7, JK Hawk Retro FK, TSR Hawk Retro FK, TSR D3, Slick 7 D3, PS4002, Slick 7 • Body Height = 1.375” maximum • Gears = Production only; no modifications except sanding • Front Grille = .063” (1/16”) except Ti22 diameter • Spoiler Size / Height = no wider than body; .500” maximum • Driver Figure / Interior = All bodies must contain a painted (at • Driver Figure / Interior = Fully molded, minimum two-color, least two colors), fully-molded, three-dimensional interior presentably / realistically painted, no paper interiors. The rear comprising a driver (helmet, shoulders, and arms), a steering window must be painted, tinted, or covered with interior on GTC wheel, and cockpit representation. The interior must be attached bodies to the body with the driver facing in the proper direction and fully cover the chassis when viewed from above.

Quick Reference – effective January 1, 2015 – © IRRA®

Mission and General Rules

® Mission Statement • The IRRA trademark may be used specify the rule set being enforced at a slot racing event, i.e. The purpose of this organization is: the Noose 500 Retro Can-Am run under IRRA® ® • to promote a return to the spirit of slot car racing Rules, the Cheater Crash-o-Rama for IRRA fun from the ‘60s, using scratchbuilt slot cars Can-Am Cars, or IRRA® style Can-Am racing • to define slot cars that reflect the appearance of every Friday night. actual racing cars from the above time period Allowable Use of the IRRA® Rules • to provide a unified set of rules for regional, ® national, and international competition, and Permission to use and publish the copyrighted IRRA rules is granted if and ony if the rules are unchanged • to create a rules structure that is cost-effective and unmodified in any manner. The notice of "Copyright for the racer as well as the raceways. IRRA® " also must be included. These rules were developed after a careful review of all regional Retro style rule sets, in a process begun at the IRRA® Board of Directors first national Retro race held in Chicago in 2007. Joe Neumeister - Body & Tech chairs Based upon the success of that event, a group of racers Mike McMasters - Competition & Co-Component chairs representing various regions agreed that a unified set of Tony Pryzbilowicz (Tony P) - Motor & Co-Chassis chairs rules for major events could be established to ensure Mike Swiss - Co-Component & Co-Chassis chairs that all cars currently running under regional rules would Greg Wells - Sergeant at Arms & Marketing chair be legal to run in national or international events with ® little, if any, modification. The primary goal was • Samples of any new items for use under IRRA inclusiveness. Regions running Retro series are rules (such as motors and bodies) must be sent encouraged to adopt these rules for their regional to the appropriate committee chair for further events. review by the board and committee members. Though the result of careful consideration by a body of Items must be available to raceways from the manufacturer, through the manufacturer's experienced slot racing participants, these rules will distribution system, or via the normal distributor undergo revision if required and therefore may evolve over time. However, the intent of this organization is to network. revise these rules only when doing so is clearly • Any part, material, technique, or rules necessary and beneficial for all parties concerned. interpretation not specifically allowed under IRRA® rules is not legal and is prohibited! The Announcements and the latest rules updates and ® decisions will be posted on the IRRA® website. IRRA reserves the right during technical inspection to disallow any car that does not meet Please note that anyone running any of the classes the intent of the rules. defined in these rules who choose to establish alternative rules is prohibited from announcing that Tier Grouping ® the class is being run under IRRA rules unless the The various classes within IRRA® have been divided into rules are used exactly as defined. two tier groups to guide race organizers in selecting the classes to run, especially at large events. General Rules Tier 1 Classes – to be run at all large events (these ® Allowable Use of the IRRA Trademark are the IRRA® Premier classes) ® • IRRA is a trademark of the International Retro • Can-Am Racers Association (IRRA®) and may not be • Formula 1 used without express written permission. • GT Coupe-Pro ® • IRRA is a rules-making body only and does not Tier 2 Classes – to be selected by the race sanction, approve, sponsor, or hold slot racing organizers as additional classes events. For this reason, the trademark IRRA® • GT Coupe-FK may not be used in the names of races, i.e. the • Retro Stock Car ® Mid-Alaska IRRA Moose Maul or the Golden • Can-Am Plus ® Grain IRRA Nats. • Retro Anglewinder General Rules – January 1, 2015 – © IRRA® • A "GTC-Pro Only" list will be maintained and Track Condition published by IRRA® stipulating which racers will not ® • Drivers are prohibited from gluing the track before or be permitted to run in the GTC-FK Class at IRRA during any races. The Race Committee and the Premier and other large events, based on the racers' track owner will ensure the tracks are properly set- previous performances at past events. Please refer up on race day. Glue boards are not allowed. to the IRRA® website for the current "GTC-Pro Only" drivers list. Tire Cleaning and other Fluids • Racers not on the GTC-Pro list can only enter the • Tires may be cleaned during the race, in between GTC-FK Class event. heats, and during lane changes. Racers and their pit crews may only clean tires using the supplied If a racer wins the GTC-FK class at a Premier event • cleaner (lighter fluid/naphtha) provided by the then that racer will be added to the list and can only hosting raceway/race director/series director. The race in the GTC-Pro Class at future Premier events. approved cleaner and supplied rag(s) that will be Hand-out Motors placed in a designated area prior to the race and ® tires must be cleaned in that designated area only. • At designated large scheduled races using IRRA rules, the track owner/Race Director may elect to • Any racer transferring tire cleaner to the track utilize a hand-out motor system, using one of the surface will be disqualified. approved motors. This will be announced well in • Tire treatments such as Zip Grip, Sticky Fingers, or advance and ample time will be allowed on the day any other tire treatment may only be applied before of the race for the racer to obtain and install his the car is teched-in. No treatments will be allowed at hand-out motor. If a race for this class is conducted any time after tech. The rear tires must be dry when using hand-out motors then the racer must use only the car is presented at tech. the hand-out motor(s) assigned to him/her. • Any racer or pit crew found applying tire treatments • Should a racer’s hand-out motor fail during the after tech, or cleaning tires with anything other than qualifying run or warm-up, the racer will be given the the supplied cleaner and rags, will result in racer opportunity to change to another hand-out motor disqualification. without penalty, if a second hand-out motor purchased by the racer is available. • Racers cannot leave any residue on the track from either braid juice or oiling of the car. Braid juice is to Entry Fee be used sparingly on the car's braid and is not • The entry fee amount will be determined by the allowed to be placed on the track's braid. Racers Race Committee in concert with the raceway owner should not oil their cars over the track's surface or and will be announced in advance of the event. use excess amounts that can leave a residual amount on the track's surface. • Every effort will be made to include track time in this fee. If that is not possible, then an announcement Race Formats will be made as to the cost of track time or “pit pass”. § All heats will be a minimum of 3 minutes in length. Tech Inspection § The length of the break between heats will normally be 2 minutes, although this may be increased by the • The starting and closing times for tech inspection will be announced by the Tech Director prior to the Race Committee in consideration of the facility event. layout at the particular event's raceway. • Any driver whose car is not teched-in by the close of § All drivers are required to utilize Lane Change Cards tech inspection will not race in that class. to mark the stopping position of their cars at the end • All cars will be impounded after tech inspection and of each heat. Drivers who fail to use Lane Change cannot be touched or worked on until the Tech Cards as required will have their cars moved to start Director distributes them immediately before the the next heat from a position immediately past the beginning of each race. lap counter’s dead strip. • Any driver found working on his car during the Option A – 11 or less entrants impound period will be disqualified. § Applies when there are 11 or less entrants • The Race Director, at his discretion, may perform a second technical inspection after the race is § Qualifying is optional. completed. § If qualifying held, lane choices selected in order of fastest qualifier to slowest qualifier with appropriate sit-outs allowed if following a round- robin format.

General Rules – January 1, 2015 – © IRRA® Option B – A, B, C Mains with Move-ups the driver to suffer a ten-lap penalty. A third § Qualifying is held. offense will result in the driver’s disqualification from the race. § Mains are determined by qualifying order with 6 sit-outs spots for each Main allowing for 2 move- Marshaling up from a lower Main, with the last Main being • All entrants are expected to marshal and/or to the remaining racers. assist the Race Director if unable to marshal due § Lane selection for each Main will be determined to physical or medical reasons. qualifying order. • Any driver failing or refusing to marshal as Option C – Main seeding from A and B Semis directed in a class in which he is competing will § Qualifying is held. receive a five-lap penalty for his race in that class. § Seed top 8 into two Semis, using format 1, 3, 5, 7 in the A Semi and 2, 4, 6, 8 in the B Semi. Track Calls § Seed remaining qualifiers into Consis using the • Track calls will permitted only under the same format. following conditions: § Top finishers from Consis move into the A and B – an umarshalable car in the straight in front of Semis. the drivers, or on an inaccessible part of the racing surface. § Top 4 finishers from each Semi move into the – an umarshalable car under a bridge or on the Main. floor in an inaccessible location. A car on the Option D – Equally-Distributed Mains floor is NOT automatically a track call. § Qualifying is optional. – a car landing in another racer’s lane, i. e. a “rider”. § If qualifying is held, seeding the Mains will be by Note: The situation where a marshal has qualifying order, equally dividing the filed of more than one car to re-slot is NOT a track entrants. call. § If qualifying is held, lane choices selected in • When a track call is made, the Race Director order of fastest qualifier to slowest qualifier with may, at his discretion, ask the driver calling appropriate sit-outs allowed following a round- “track” his reason for doing so. If the Race robin format if more than 8 racers per Main. Director determines the track call to have been § Alternatively, if qualifying is held, top 8 seeded unwarranted and/or in violation of the rules, the into A Main, with remaining qualifiers equally driver’s car will be moved to a position distributed into Semis. immediately past the lap counter’s dead strip before racing is resumed. § If qualifying is not held, then the formation of the Mains and the lane designations will be done Missed Laps randomly. • Mid-race lap total adjustment will be made at the § In all cases, results will be based overall discretion of the Race Director, as each track laps/sections totals. and lap counting system is different. Race officials will review the missed laps adjustment Black Flag policy at each event and communicate it to the • Any car suffering damage that makes it a hazard racers. to other drivers, due to constant de-slotting, or that is damaged in a manner making it illegal Photographs ® under IRRA® rules (such as a loss of part of the • Racers entering IRRA events must grant the body, loss of interior, or dragging on the track IRRA® the right to photograph all cars (including surface) will be black-flagged. the chassis), and to publish such photos for the benefit of fellow racers, the betterment of the • A car that is black-flagged must be immediately ® removed from the track until proper repairs are hobby, and the promotion of IRRA racing. made. Failure to comply with a black flag will result in the driver’s disqualification from the race. Conduct • The Race Director, at his sole discretion, will issue a warning to a driver exhibiting unsports- manlike conduct. A second offense will cause General Rules – January 1, 2015 – © IRRA®

Motor Rules

Approved Motors for use in IRRA® Racing

Topline Falcon 7, part number ATCD302 Pro Slot Euro Mk 1, sealed, with Chinese-made JK Falcon 7, part number JK30207 arm, part number PS4002 – refurbishable

• 65 turns (nominal) of 30 AWG wire (nominal) • 60 turns (nominal) of 31 AWG wire (nominal) • Stack length - .375" • Stack length - .400" • Arm timing - 15 degrees nominal • Diameter - .513" • Diameter - .513" • Arm timing - 20 degrees nominal • Magnets - Neodymium • Magnets - ceramic • Internal brushes and springs • External brushes and springs • Oilite bushings • Oilite bushings

JK Retro Hawk FK, part number JKHR Pro Slot Euro Mk 1, sealed, with Chinese-made arm, part number PS4002FK – not refurbishable

• 65 turns (nominal) of 30 AWG wire (nominal) • 65 turns (nominal) of 30 AWG wire (nominal) • Stack length - .390" • Stack length - .400" • Arm timing - 15 degrees nominal, commutator tied • Diameter - .513" • Diameter - .513" • Arm timing - 15 degrees nominal • Magnets - Neodymium • Magnets - Neodymium • Internal brushes and springs • External brushes and springs • Oilite bushings • Oilite bushings

The armature shaft on the endbell side of JK Hawk Retro

motors may not be cut or shortened. Pro Slot Euro Mk 1 "Puppy Dog", sealed, with TSR D3, part number TD301 American-made arm, part number PS4002B or PS4002B-B – refurbishable

• 65 turns (nominal) of 30 AWG wire (nominal) • Stack length - .375" • Arm timing - 3 degrees nominal • Diameter - .513" • 75 turns of 31 AWG wire • Magnets - Neodymium • Stack length - .400" • Internal brushes and springs • Diameter - .513" • Oilite bushings • Arm timing - 25 degrees nominal • Magnets - ceramic • External brushes and springs • Oilite bushings

Motor Rules – effective January 1, 2015 – © IRRA® Slick 7 Mini Brute, part number S7-588A • 82 turns (nominal) of 31 AWG wire (nominal) • Stack length - .375" • Arm timing - 5 degrees nominal • Diameter - .513" • Magnets - ceramic • Internal brushes and springs • Oilite bushings

Note: armature dimensions exclude any coatings, if present.

Notes: 1) Both the specified winds and wire sizes are nominal figures, with allowances for production variances to Approved refurbishers for Pro Slot Motors: be permitted. Fast Ones: contact is Ron Hershman 2) A protested FK motor (Falcon 7, Retro Hawk, and TSR D3) armature will be deemed legal if the sum of Pro Slot Ltd: contact is Dan DeBella wire winds counted on all three poles is no less than IRRA® Motor Refurbisher Requirements 193 winds and if no single pole has less than 63 Applies to: Pro Slot Ltd and Fast Ones, as winds. In other words, a variance of -2 total wires ® winds from the nominal total winds spec will be designated IRRA Service Centers performing permitted. For example, an FK armature with wire refurbishing work on Pro Slot PS4002, PS4002B, and wind counts of 65, 64, 64 on the three poles would be PS 4002B-BB motors deemed legal, as would an armature with wire wind IRRA® Service Center operators are NOT permitted counts of 65, 65, 63. An armature with wind counts of to enter IRRA® events using Pro Slot motors that 65, 64, 63 would not be legal. they themselves have refurbished. Refurbers will be 3) A protested Pro Slot PS4002 Chinese armature will required to race ONLY using Pro Slot motors that be deemed legal if the sum of wire winds counted on have been refurbished and sealed by another ® all three poles is no less than 178 winds and if no approved IRRA Service Center, or new motors single pole has less than 58 winds. obtained from factory-sealed packaging. 4) A protested Slick 7 Mini Brute armature will be IRRA® Service Centers must certify that any motor deemed legal if the sum of wire winds counted on all submitted in one or more of the following conditions will three poles is no less than 244 winds and if no single not be refurbed: pole has less than 80 winds. 1) A motor that is unassembled, modified, and/or where 5) The specified AWG wire sizes on all motors are work obviously was done elsewhere, i.e. not by one nominal values and minor allowances from the exact of the two IRRA® Service Centers. AWG specification will be permitted at the discretion ® 2) A motor received with a damaged seal that doesn't of the IRRA Board of Directors. cover at least two screws. Older production motors If a manufacturer releases a new or modified version of using foil seals or that were produced without endbell a previously-approved IRRA® motor without informing screws will be refurbed at the refurbishers discretion the IRRA® of such changes, the IRRA® Board, at its pending validation of specifications. discretion, may remove that motor from the list of motors 3) Refubishers will not "verify and seal" motors as the ® ® approved for use in IRRA competition. IRRA also only "work" performed. reserves the right to add new motors or to remove any 4) Refurbishers will not seal any out-of-spec motors. previously-approved motor from the list of approved Any motor with parts found to be illegal and out-of- motors. spec with evidence of tampering will be Any motors with changed specifications submitted for destroyed. Parts found to be out-of-spec without ® IRRA approval must carry a new part number. The signs of tampering will be replaced by Pro Slot. ® IRRA reserves the right to ask manufacturers for 5) The Service Centers will communicate to IRRA® BoD unique tags and/or can markings for identification ® receipt of any and all motors with out-of-spec or purposes on motors submitted for inclusion in the IRRA illegal parts. approved motors list.

Motor Rules – effective January 1, 2015 – © IRRA® IRRA® Motor Specifications and Rules IRRA® Motor Rules Applies to: Pro Slot 4002B and Pro Slot 4002B-B Applies to: Topline & JK Falcon 7, JK Retro Hawk motors. FK, TSR D3, and Slick 7 Mini Brute 1) All motors must be remain unmodified and as 1) All motors must be remain unmodified and as produced by Pro Slot. produced by the manufacturer. 2) "Pre-furbished" motors, i.e. new motors that are 2) Motor cans must remain unmodified and as produced refurbished before being used, are not allowed. by the manufacturer. Factory external motor can 3) Armatures are to be tagged "PD". dimensions may not be changed by crushing or other 4) Armatures are to be wound with 75 turns of 31 gauge methods. Grinding where the can is soldered to the wire. motor bracket is permitted. 5) Minimum armature diameter is .512"; minimum 3) Factory armature timing must remain unmodified. armature stack length is .390". 4) Endbells may not be removed and reinstalled. 6) Commutator timing is not to be modified from the 5) External clip-on motor heatsinks and commutator factory "25 degrees nominal" setting. Arms with over arm-shaft mounted coolers are allowed. 30 degrees timing will be replaced by Pro Slot if no 6) The armature shaft on the endbell side of JK Hawk evidence of tampering is detected; if tampering is Retro motors may not be cut or shortened. detected, the arm will be destroyed. Motor Protest Procedure 7) Armatures are to be balanced, rebalanced, and commutators re-trued by authorized IRRA® Service Any competitor racing in the same class/race as another Centers only. competitor may protest another racer's motor. The 8) Motor cans must remain unmodified and as produced protest must be filed with the official in charge of event by Pro Slot. Grinding where the can is soldered to the before the completion of the race in which the motor bracket is permitted. suspect motor is being raced/used. 9) Motor air gap is not to be changed/modified from its The fee for protesting another motor varies with the type factory specifications, which is a nominal .530". Air of motor: gap must measure between .525" and .540". For Pro Slot motors (i.e. PS4002, 4002B, PS4002B- 10) Magnets must be unmodified stock Pro Slot factory B), protest free is $75. production units only and cannot be honed or ground. For all other motors (i.e. Topline or JK Falcon, Hawk Magnets will be retained in place using clear CA Retro, TSR D3, Slick 7 Mini Brute), protest fee is $40. ("Super Glue") only. Magnet recharging is allowed. 11) Ball bearing is allowed on can side of motor only. The protest fee must be paid in cash immediately after No endbell ball bearings allowed. Can ball bearing the race finishes. and can oilite bushing may be soldered in place. At the conclusion of the race, the protested motor will be 12) Endbells are to remain unmodified. Stock factory removed from the car by the race official or in front of the endbell hardware is to be used unmodified (any race official. Once the motor is out of the car the race grinding of the hoods done at the Pro Slot factory for official will mark the motor, which will be impounded by commutator clearance is allowed). Hardware screws the official in charge to be sent in for teardown and verification. The impounded motor will be sent to the maybe be changed in case of a stripped endbell. IRRA® Motor Chair or his designate for verification. 13) Only three-coil motor springs of any brand are allowed. Springs may be "tweaked" to adjust tension. The race results will stand, to be amended later if the protested motor is found to be illegal or out of spec. 14) Any 36D size motor brushes may be used. Brushes The IRRA® BoD will be notified of the results of the may be radiused but any other cutting, slotting, ® drilling, or modification of the brush face contacting motor inspection and verification process. IRRA will comm is not allowed. Narrowing of brush height or release an official statement of the findings within ten width is not allowed. Shunt wires and spring days. Said statement may include notification that the insulation are not allowed. racer using the illegal motor was found in violation and 15) Can to endbell screws must be used, with an subject to the statement in the Exclusion Clause of the unmodified refurbisher's seal covering the screws. rules. Only Pro Slot and Fast Ones seals may be used. If the motor is found to be illegal or out of spec, the Seals may be protected with clear coating. Damaged protester will get his protest fee returned in full. seals must retain a single piece of seal material If the motor is found to be legal and in spec, the motor's covering at least two endbell screws. owner will receive the full protest fee. 16) External clip-on motor heatsinks and commutator arm-shaft mounted coolers are allowed.

Motor Rules – effective January 1, 2015 – © IRRA®

IRRA® Approved Body Lists

Can-Am & Retro Anglewinder Classes

Chapparal

Chaparral 2H - Dilworth

Ferrari

Ferrari 312 - Electric Dreams MACV16 Ferrari 330 - Lancer-163 Ferrari 330 - TrueScale Ferrari 350 - Dilworth Ferrari 350 - Vintage OS455 Ferrari 350P4 - Red Fox Ferrari 612 - Champion Ferrari 612 - Dilworth Ferrari 612 - JK 7086B Ferrari 612 - OS410 Ferrari 612 - OS410L Ferrari 612 - OS414 Ferrari 612 - Parma 1142B Ferrari 612 Bloom/Waters - OS451 Ferrari 612 - Vintage OS466 Ferrari 612 - TSR03 Ferrari 712 - OS470

Honker

Honker - Vintage OS465 Honker - Red Fox

Approved Bodies – effective January 1, 2015 – © IRRA®

Lola T70

Lola T70 - Dilworth Lola T70 - TrueScale TSR08 Lola T70 Spyder (Donohue) - OS412 Lola T70 Spyder (Gurney) - OS470

Lola T160

Lola T160 Mini Wheels - Dilworth Lola T160 - Electric Dreams MACV15 Lola T160 - OS407 Lola T-160 - Parma 1141B Lola T160 - Vintage OS467 Lola T160 - TrueScale TSR05

Lola T163

Lola T163 - Dilworth Lola T163 - Parma 1036B Lola T163 - OS407L Lola T163 MO - OS474 Lola T163 - Vintage OS464

Lotus

Lotus 40 Dynamic - ED ELEB029 Lotus 40 - OS450 Lotus 40 - OS472 Lotus 40 Russkit - ED ELEB30 Lotus 40 - TrueScale TSR06

Approved Bodies – effective January 1, 2015 – © IRRA®

McLaren

McLaren Mk 6 VK - Elec Dreams MES01 McLaren M6 - JK 7087B McLaren M6 - Red Fox McLaren M6A - Vintage OS466 McLaren M8 - Champion/Parma McLaren M8 Lancer - Elec Dreams ELEB03 McLaren M8 - OS413 McLaren M8A - TrueScale McLaren M8A - Vintage OS463 McLaren M8B - OS411 McLaren M8B - TrueScale TSR01

McLeagle

McLeagle - OS409

McKee

McKee - OS405 McKee - TrueScale

Porsche

Porsche 908 Spyder - Dilworth Porsche 908 - Red Fox Porsche 908R - TrueScale TSR07 Porsche 908 - Vintage OS456 Porsche 908 Flunder - OS418 Porsche 917PA short - OS419 Porsche 917PA long - OS419L Porsche 917PA - TrueScale TSR25

Approved Bodies – effective January 1, 2015 – © IRRA®

Ti22 - Short

Ti22 short - Electric Dreams V03 Ti22 short - OS408 Ti22 short - TrueScale TSR27 Ti22 Kirby - G-Force GFR100B Ti22 Kirby short - TrueScale Ti22 Kirby - OS415 Ti22 narrow nose - OS475 Ti22 short - Parma 1143B

Ti22 - Long

Ti22 - JK 7081B Ti22 - JK 70812B Ti22 Kirby long - TrueScale TSR24 - non- ribbed version Ti22 Kirby Associated long - OS415L Ti22 long - OS408L Ti22R - OS473 Ti22RL long - OS476 Ti22 narrow nose long - OS477 Ti22 - Parma 1041B Ti22 narrow nose - Parma 1043B

Approved Bodies – effective January 1, 2015 – © IRRA®

GT Coupe & Retro Anglewinder Classes

Chapparal

Chaparral 2D - Electric Dreams ELEB031 Chaparral 2F - Red Fox Chaparral 2F - OS423 Chaparral 2F short - OS425

Chevron

Chevron B16 - OS420 Chevron B16R - OS426

Ferrari

Ferrari 312GT - Dilworth Ferrari 330P4 - Dilworth Ferrari 330P4 GT - G-Force GFR200B Ferrari 330P4 - OS424 Ferrari 330P4 - Red Fox Ferrari 330P4 - TrueScale TSR11

Ford GT

Ford GT40 - JK 7082B Ford GT40 - Red Fox Ford GT Mk IV - Electric Dreams ELB08 Ford GT Mk IV - JK 1091 Ford GT Mk IV - TrueScale TSR26

Approved Bodies – effective January 1, 2015 – © IRRA®

Ford P68

Ford P68 - Dilworth

Lola

Lola T70 - JK Lola T70 Sunoco - JK 719081B Lola T70 - Red Fox Lola T70 - OS421 Lola T70 - TrueScale Lola T70 - Parma 1039B

Marcos Mantis

Marcos Mantis - Parma -1037B Marcos Mantis - TrueScale

McLaren

McLaren Mk 6 - TrueScale TSR12

Approved Bodies – effective January 1, 2015 – © IRRA®

Mirage

Mirage M1C - TrueScale TSR23 Mirage M2 - TrueScale TSR15

Porsche

Porsche Carrera - JK 1903 Porsche 908 - TrueScale TSR09

Approved Bodies – effective January 1, 2015 – © IRRA®

Formula 1

BRM

BRM P138 - Parma 1049B

Cooper Maserati

Cooper Maserati wide - Lancer 881 Cooper Maserati narrow - Lancer 981 Cooper Maserati - OS430 Cooper Maserati - Red Fox Copper Maserati - TrueScale TSR35

Eagle

Eagle - TrueScale TSR33

Ferrari

Ferrari narrow - Lancer 980 Ferrari - Red Fox Ferrari Lancer - TrueScale TSR18 Ferrari Dynamic - TrueScale TSR17 Ferrari Lancer - Vintage OS432N Ferrari Dynamic - Vintage OS434N

Approved Bodies – effective January 1, 2015 – © IRRA®

Honda

Honda RA301 - TrueScale TSR36

Lotus 43

Lotus 43 - Dilworth

Lotus 49

Lotus 49 - Lancer 975 Lotus 49 - OS431 Lotus 49 - TrueScale TSR21 Lotus 49B - OS435

Matra

Matra - Lancer 976 Matra - Vintage OS433N Matra MS80 - Parma 1038B Matra - TrueScale TSR20

Approved Bodies – effective January 1, 2015 – © IRRA®

McLaren

McLaren - Chicagoland M7C McLaren M7C - OS436 McLaren M9A - OS437

Lotus 56 Turbine Lancer True Scale TSR19 OS 438B

Approved Bodies – effective January 1, 2015 – © IRRA®

Stock Car

Ford Fairlane

'67 Ford Fairlane - OS602

Ford Torino

Ford Torino - OS604

Ford Torino Talladega

Talladega - OS651

Chevy

Chevy Chevelle – VFC D33 Chevy Chevelle - OS652 '65 Chevy Impala - VFC N04

Approved Bodies – effective January 1, 2015 – © IRRA®

Dodge Charger

'68 Charger RT - OS601 '67 Charger - OS600

Dodge Daytona Charger

Dodge Daytona - OS650

Mercury

Mercury Cyclone - Parma 1040C

Pontiac

Pontiac GTO - OS603

Can-Am Plus

True Scale Abarth

M.A.C. Autocoast Ti22

Electric Dreams V002 Parma 925

M.A.C. Ferrari 612

Electric Dreams V005 Parma 924

M.A.C. Gulf Mirage

Electric Dreams V007 Parma 1057B O/S 491

M.A.C. Lola T292

Electric Dreams V004 Parma 923

M.A.C. McLaren M20

Electric Dreams V009 Parma 932

M.A.C. Porsche 917-30 Electric Dreams V008 Parma 1 OS 490

Porsche 917-10

Truescale TSR 16

Can-Am Specifications & Rules

A. Simplified Specifications Reference 5b. The front tire contact patch must touch the track across the full width of the tire (i.e. no Total Weight = 100 grams minimum • coning/angling or knife-edging is allowed). Chassis Width = 3.125” maximum • 5c. Tire edges may be rounded to a maximum • Body Width = 3.250” at the wheel arches 1/16" radius. • Body Thickness = .010” with .007” minimum on 6. Minimum Front Tire Diameter: 0.750” sides (19.05mm) across the full width of the tire. • Track Width, F & R = 3.125” 7. Minimum Rear Chassis Clearance: 0.050” • Chassis Clearance, F & R = .015” / .050” (1.27mm). minimum 7a. The entire motor bracket, gear, and all parts • Front Tire Diameter = .750” minimum of the chassis (including pans) aft of the motor • Front Tire Width = .225” minimum mounting face of the bracket must meet this clearance. • Rear Tire Diameter = .8125” minimum • Rear Tire Width = .810” maximum 7b. Clearance will be measured with front and rear tires sitting flat on the test block with the Motor Type = PS4002B, PS4002B-B, JK Hawk • guide unsupported. Retro, Topline or JK Falcon 7, TSR D3, Slick 7 8. Minimum Front Chassis Clearance: 0.015” Body Height = 1.375” maximum • (0.38mm). Front Grille = .063” (1/16”) except Ti22 • 8a. This will be measured at the most forward • Spoiler Size / Height = no wider than body; part of the chassis. .500” maximum height 8b. Clearance will be measured with front and • Driver Figure / Interior = Fully molded, rear tires sitting flat on the test block with the minimum two-color, presentably / realistically guide unsupported. painted, no paper interiors 9. Axles, Front & Rear: 3/32” (2.38mm) minimum B. General Specifications diameter, one piece, solid steel. 1. Maximum Overall Chassis Width: 3.125” 9a. Hollow axles are not allowed. (79.38mm), measured across any part of the 9b. Axles may only be flattened in the areas chassis, as well as across the front and rear where the wheels and gear are secured. tires and axles. 10. Bushings/Bearings: Oilite/bronze bushings or 2. Maximum Body Width: 3.250” (82.55mm), ball bearings may be used in the front and/or the measured at the front and rear wheel arches. rear. 3. Maximum Rear Tire Width: 0.810” (20.57mm) 11. Minimum Weight: 100 grams ready to race. 4. Minimum Rear Tire Diameter: 0.8125” 12. Drive Type: Inline drive only, with the motor (20.64mm) across the full width of the tire. shaft at 90° to the rear axle. 5. Minimum Front Tire Width: 0.225” (5.72mm). 12a. The armature shaft of the motor must be 5a. Wheels with O-ring ‘tires” are prohibited. located on the longitudinal center line of the chassis, i.e. offset motors are not permitted.

Can-Am Rules – effective January 1, 2015 – © IRRA® 13. Drive Gears: Any drive gear and ratio may be 17c. Front tires may be coated with cyano- used. Crown gears must be commercially acrylate adhesive (“Super Glue”) or nail polish. available and the only modifications allowed 17d. Tires may be cleaned during the race, in (other than making your own sleeve) are between heats, and during lane changes. sanding of the diameter of the gear and 17e. Racers and their pit crews may only clean heating/burning it in for a smoother gear mesh. tires using the supplied cleaner (lighter Disallowed modifications would include, but are fluid/naphtha) provided by the hosting not limited to, lightening, drilling, reversing the raceway/race director/series director. The gear on the hub, repositioning the set screw approved cleaner and supplied rag(s) that will be hole, changing or reconfiguring the hub, and/or placed in a designated area prior to the race and any other changes to the gear's size or appear- tires must be cleaned in that designated area ance as compared to the stock production gear. only. Any racer transferring tire cleaner to the 14. Maximum Front Axle Play: 0.125” (3.18mm), track surface will be disqualified. as part of the maximum front track width. 17f. Tire treatments such as Zip Grip, Sticky 14a. At no time can tires extend out past the Fingers, or any other tire treatment may only be body. applied before the car is teched-in. No 15. Maximum Rear Body Height: 1.375” treatments will be allowed at any time after tech. (34.93mm) measured with the car on all four The rear tires must be dry when the car is wheels on a tech block (unsupported by the presented at tech. guide flag), from the tech block surface to the 17g. Any racer or pit crew found applying tire top of the highest point of the rear of the body, treatments after tech, or cleaning tires with excluding any add-on spoiler. anything other than the supplied cleaner and 15a. Severe raking of the body for aerodynamic rags, will result in racer disqualification. effect is not allowed. C. Chassis 16. Tires – Rear: Any commercially-available black natural rubber tire, chemically-treated or 1. Chassis Type: Any personally-built or untreated, on any size hub. commercially-available scratchbuilt chassis in kit form or built conforming to these specifications 16a. Speed rubber is prohibited. is allowed. 16b. Tires may not be changed during a race. 2. Chassis Materials: Brass: sheet, rod, and Should a racer encounter a damaged tire/wheel tube; Bronze: rod; Steel: wire, pin tubing, and (stripped screw, bent hub, or chunked tire), the commercial guide tongues are allowed. No other racer will be afforded the opportunity to make materials are allowed. Chassis parts, such as the repair under the green and present the car to pans, brackets, guide tongues, etc., that are the tech inspector at the end of the heat for made using EDM, laser, or water-cutting checking before the racer will be allowed to techniques are allowed only if they are individual continue. commercially-available components or 16c. For races where there is a move-up from components of chassis kits (i.e. these one main to another, tires can be changed and techniques may not be used in the private the car will go through a full tech inspection. manufacture of one-off components). Materials 16d. Those racers making a move-up from one such as printed circuit boards are not legal. main to another and not choosing to change 3. Chassis Construction: tires will still be subject to tech inspection for 3a. Each car must have a one-piece brass rear legal tire diameter and chassis clearance. bracket consisting of at least three sides (vertical 17. Tires – Front: Must be made of two pieces, i.e. or horizontal), with each connected side having a wheel and a tire. Wheel stickers are not a minimum width or height of at least .200". permitted. 3b. The motor bracket must support the motor 17a. Front wheels may be made of any material and extend to touch the rear axle tube or contain and can have any size hub (as long as the front the rear bushings/bearings. wheel and tire dimensions listed elsewhere in 3c. The axle tube, if used, does not need to pass these rules are observed). through the motor bracket. 17b. Front tires must be glued to the wheels and 3d. The motor can be screwed to the motor be made of black rubber; only SBR, Wonder, bracket and/or can also be soldered in place. and natural rubber type materials are acceptable. Tires made from, or coated with, 3e. Floating pin tubes inside another tube are silicone, urethane, or other similar compounds, allowed. may not be used. 3f. Pieces of steel used for guide tongues are limited to a maximum 1” (25.4mm) total width Can-Am Rules – effective January 1, 2015 – © IRRA® and 1.50” (38.1mm) total length. Steel tongues sideways “free float” or offset) and with a blade cut from the flexi and wing car chassis are not no larger than .086” (2.20mm) wide by 1.060” considered "commercial guide tongues" and are (27.18mm) long. no longer allowed. All legal steel tongues must 7. Tape/Lead: Lead weight may be added to a be purpose-built as steel tongues and meet all ® chassis but may only be affixed to the top side of IRRA measurement specifications. the chassis. Strapping or other tape to control or 3g. The joining of brass sheet, plate, or strip restrict movements is allowed but may only be parts via tab and slot or "keyed" construction is affixed to the top side of the chassis. not permitted. 7a. Taping a damaged body to a pan to finish a 3h. Main chassis rails constructed of round steel heat is permitted. The body must be repaired, or brass wire maybe ground or sanded flat on and the tape removed, before the start of the the bottom, but no more than 20% of the next heat of racing. Otherwise, the prohibition rail diameter may be removed. against the use of tape of any kind on the 3i. Wire or tubing rails must connect the front bottom of the chassis remains in place. and rear sections of the chassis. Using metal D. Motor strip for this purpose is not permitted. A rail is defined as that which connects the motor 1. Motor types: May use any one of the following bracket to the front of the chassis. motors, which must remain unopened and unmodified. 3j. The bottom surface of the whole chassis (including the motor, but excluding the motor • Pro Slot Euro Mk 1 4002B and 4002B-B, seal and guide flag) must be flat and straight in sealed, with American arm, with bushing or ball bearing in can. May be refurbished by all directions, with no bowing or drooping of any ® parts below the plane defined by the front and an approved IRRA Service center rear clearance specifications. This will be • Topline or JK Falcon 7 checked by applying a straight edge to the • JK Hawk Retro FK underside of the car both across the frame and • TSR D3 along the length of the frame. • Slick 7 Mini Brute Note: No other motors will be allowed unless approved by the IRRA® and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRA® scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved motors. This will be announced well in advance and ample time will be allowed on the day of the race for the racer to obtain the motor and install it. If a 4. Hinged Movements: Other than a drop arm, all race for this class is conducted using hand-out hinged movements must be oriented in only one motors then the racer must use the motor(s) direction on any individual chassis. assigned to him/her. 4a. A chassis may have transverse hinges 3. Exclusion Clause: Clear violation of the motor- tampering rule will result in permanent exclusion (examples: Iso-fulcrum hinges and plumber ® hinges) or it may have longitudinal hinges from future IRRA events of any kind. Racers (example: side pan hinges) but the chassis may will be required to sign a tech sheet giving not have both types. permission for the Race Director, at his discretion, to tear their motors down for 4b. The number of individual hinges is not inspection to prove legality. restricted. 4. A motor may not be changed after tech 4c. Centerline hinges are not allowed. inspection or during a race except as follows: 5. Front axle: A single straight, 3/32” (2.38mm) 4a. For those races where there is a move-up minimum diameter, one-piece front axle is from one main to another, motors can be required, carrying both front wheels. The axle changed and the car will go through a full tech may be fixed or in a tube. No hinged front wheel inspection. movements are allowed (i.e. no “L” arms). Front wheels may rotate independently. 4b. Should a racer's hand-out motor fail during the qualifying run or the warm-up, the racer will 6. Guide: A single guide flag is allowed, centered be given the opportunity to change to another on the longitudinal axis of the chassis (i.e. no hand-out motor without penalty, if a second Can-Am Rules – effective January 1, 2015 – © IRRA® hand-out motor purchased by the racer is 3d. Front diaplanes are not allowed. available. 3e. High-mounted wings are allowed if they are E. Body used on the original full-size car. Such wings must be securely attached to the body and/or 1. All approved Can-Am bodies are listed in the chassis. “Approved Body Lists” section. All bodies must 3f. No notches can be cut in the spoiler above be representative of pre-1970 Can-Am/USRRC the bend line. Punched holes in the spoiler are cars. not allowed. 1a. Bodies may not be any less than .007” thick The .500" dimension shown below is the on the sides. Any body found to be flimsy or a maximum allowed height of the spoiler from the detriment to marshaling will need to be corrected edge of the body. This is where the bend line in by the racer. Tape or body armor may be used the spoiler is positioned. to achieve the desired side thickness. 1b. Maximum body length is 6-3/4” (171.5mm). 2. Body style: Racers are encouraged to present cars with scale realism. Bodies must be those on the approved body list. 2a. No “flattened” or “aerodynamically-improved” bodies allowed (i.e. no molded-in spoilers, wings, etc., that were not on the original full-size car or original mold). Note: molded-in spoilers may not exceed the allowed specification governing the maximum width of the body. 2b. Front wheel arches must be cut out. Rear

wheel arches may be left closed if the original 4. Cockpit: All bodies must contain a painted (at full-size car ran with closed wheel arches. least two colors), fully-molded, three-dimensional 2c. Bodies must be presentably-painted and interior comprising a driver (helmet, shoulders, carry at least three racing numbers. All bodies and arms), a steering wheel, and cockpit must be fully opaque on all sides except for representation. An interior may be mounted in those areas deemed to be windows. Windows any manner as long as long as it fully covers the may be tinted. The term opaque means covered chassis when viewed from above. Interiors are to by paint, tape, or other suitable material such be mounted with the driver facing in the proper that a finger is not visible through the paint or direction. other covering under normal lighting. 4a. Interiors must be presentably painted and 2d. No part of the chassis may be seen when realistically detailed. No paper interiors. looking down on the car from above. Legal 4b. If a Can-Am body does not have a molded-in openings, such as air vents, etc., may be cut driver, then the body must be totally cut out so out. the interior is in full view. 2e. There should be a minimum 1/16” (1.59mm) 4c. Bodies with molded-in interiors also must vertical component and/or part of the grille along have an interior that covers the view of the the front edge of the body unless this element chassis through the window. was not on the original car (example: Ti22). 4d. Minimal notches in the window of Can-Am 2f. Area of body behind rear wheel wells must bodies to allow for the proper placement of the not project below the center of rear axle. interior and clearance for the roll bar is permitted. 3. Spoilers and Air Control: A single, flat plastic spoiler set at any angle may be attached to the rear of the body or under the rear of the body on the vertical portion behind the body. Spoilers may not be attached on top of the body. 3a. The spoiler’s length is limited to a maximum of 1/2” (12.7mm) from the rear edge of the body and must be no wider than the outer edges of the body. 3b. No additional bends are allowed except for the one used to set the initial angle. 3c. No side dams of any type are allowed.

Formula 1 Rules

A. Simplified Specification Reference 5a. Wheels with O-ring ‘tires” are prohibited. • Total Weight = 100 grams minimum 5b. The front tire contact patch must touch the track across the full width of the tire (i.e. no Chassis Width = 1.625” maximum • coning/angling or knife-edging is allowed). • Body Width = 1.685” excluding front wings if 5c. Tire edges may be rounded to a maximum present 1/16" radius. • Minimum Wheelbase = 3.875” 6. Minimum Front Tire Diameter: 0.750” • Maximum Wheelbase = 4.250” (19.05mm) across the full width of the tire. • Body Thickness = .010” with .007” minimum on 7. Minimum Wheelbase: 3.875” (98.43mm). sides 8. Maximum Wheelbase: 4.250” (107.95mm). • Track Width, F & R = 3.250” 9. Minimum Rear Chassis Clearance: 0.040” • Chassis Clearance, F & R = .015” / .040” minimum. (1.27mm). .050" minumum may apply for designated events 9a. If .812" diameter rear tires are required, • Front Tire Diameter = .750” minimum minimum rear clearance will be 0.050". • Front Tire Width = .375” minimum 9b. Clearance will be measured with front and • Rear Tire Diameter = .790" minimum. .812" may rear tires sitting flat on the test block with the apply for designated events guide unsupported. • Rear Tire Width = .810” maximum 9c.The entire motor bracket, gear, and all parts • Motor Type = PS4002B, PS4002B-B, Topline or JK of the chassis (including pans) aft of the motor Falcon 7, JK Retro Hawk, TSR D3, Slick 7 mounting face of the bracket must meet this • Body Height, Lotus 49 style = 1.375” maximum clearance. • Front Wings, Lotus 49 style = 2.875" maximum 10. Minimum Front Chassis Clearance: 0.015” width across front wings (0.38mm) • Body Height, all others = 1.125” maximum 10a. This will be measured at the most forward • Front Grille = .125” (1/8”) part of the chassis. • Driver Figure / Interior = Fully molded, minimum 10b. Clearance will be measured with front and two-color, presentably / realistically painted, no rear tires sitting flat on the test block with the paper interiors guide unsupported. B. General Specifications 11. Maximum Chassis Width: 1.625" (41.28mm), excluding axle tubes and axles. 1. Maximum Overall Car Width: 3.25” 12. Axles (Front & Rear): 3/32” (2.38mm) (82.55mm), measured across front and rear minimum diameter, one-piece, solid steel. axles. 12a. Hollow axles are not allowed. 2. Maximum Body Width: 1.685” excluding front wings as on the Lotus 49 and similar bodies. 12b. Axles may only be flattened in the areas where the wheels and gear are secured. 3. Maximum Rear Tire Width: 0.810” (20.57mm). 13. Bushings/Bearings: Oilite/bronze bushings or 4. Minimum Rear Tire Diameter: .790” across ball bearings may be used in the front and/or the the full width of the tire. .812” may be required rear. along with .050” rear clearance at designated events. 14. Minimum Weight: 100 grams ready to race. 5. Minimum Front Tire Width: 0.375” (9.53mm). 15. Drive Type: Inline drive only, with the motor shaft at 90° to the rear axle. Formula 1 Rules – effective January 1, 2015 – © IRRA® 14a. The armature shaft of the motor must be provided by the hosting raceway/race located on the longitudinal center line of the director/series director. The approved cleaner chassis, i.e. offset motors are not permitted. and supplied rag(s) that will be placed in a 16. Drive Gears: Any drive gear and ratio may be designated area prior to the race and tires must used. Crown gears must be commercially be cleaned in that designated area only. available and the only modifications allowed 19e. Any racer transferring tire cleaner to the (other than making your own sleeve) are track surface will be disqualified. sanding of the diameter of the gear and 19f. Tire treatments such as Zip Grip, Sticky heating/burning it in for a smoother gear mesh. Fingers, or any other tire treatment may only be Disallowed modifications would include, but are applied before the car is teched-in. No not limited to, lightening, drilling, reversing the treatments will be allowed at any time after tech. gear on the hub, repositioning the set screw The rear tires must be dry when the car is hole, changing or reconfiguring the hub, and/or presented at tech. any other changes to the gear's size or 19g. Any racer or pit crew found applying tire appearance as compared to the stock treatments after tech, or cleaning tires with production gear. anything other than the supplied cleaner and 17. Maximum Front Axle Play: 0.125” (3.18mm), rags, will result in racer disqualification. as part of the maximum front track width. 18. Tires – Rear: Any commercially-available black C. Chassis natural rubber tire, chemically-treated or 1. Chassis Type: Any personally-built or untreated, on any size hub. commercially-available scratchbuilt chassis in kit 18a. Speed rubber is prohibited. form or built conforming to these specifications is allowed. 18b. Tires may not be changed during a race. Should a racer encounter a damaged tire/wheel 2. Chassis Materials: Brass: sheet, rod, and (stripped screw, bent hub, or chunked tire), the tube; Bronze: rod; Steel: wire, pin tubing, and racer will be afforded the opportunity to make commercial guide tongues are allowed. No other the repair under the green and present the car to materials are allowed. Chassis parts, such as the tech inspector at the end of the heat for pans, brackets, guide tongues, etc., that are checking before the racer will be allowed to made using EDM, laser, or water-cutting continue. techniques are allowed only if they are individual commercially-available components or 18c. For races where there is a move-up from components of chassis kits (i.e. these one main to another, tires can be changed and techniques may not be used in the private the car will go through a full tech inspection. manufacture of one-off components). Materials 18d. Those racers making a move-up from one such as printed circuit boards are not legal. main to another and not choosing to change 3. Chassis Construction: tires will still be subject to tech inspection for legal tire diameter and chassis clearance. 3a. Each car must have a one-piece brass rear bracket consisting of at least three sides (vertical 19. Tires – Front: Must be made of two pieces, i.e. or horizontal), with each connected side having a wheel and a tire. a minimum width or height of at least .200". 19a. Front wheels may be made of any material 3b. The motor bracket must support the motor and can have any size hub (as long as the front and extend to touch the rear axle tube. wheel and tire dimensions listed elsewhere in these rules are observed). 3c. The axle tube does not need to pass through the motor bracket. 19b. Front tires must be glued to the wheels and be made of black rubber; only SBR, Wonder, 3d. The motor can be screwed to the motor and natural rubber type materials are bracket and/or can also be soldered in place. acceptable. Tires made from, or coated with, 3e. Floating pin tubes inside another tube are silicone, urethane, or other similar compounds, allowed. may not be used. 3f. Pieces of steel used for guide tongues are 19c. Front tires may be coated with cyano- limited to a maximum 1” (25.4mm) total width acrylate adhesive (“Super Glue”) or nail polish. and 1.50” (38.1mm) total length. Steel tongues 19d. Tires may be cleaned during the race, in cut from the flexi and wing car chassis are not between heats, and during lane changes. considered "commercial guide tongues" and are Racers and their pit crews may only clean tires no longer allowed. All legal steel tongues must using the supplied cleaner (lighter fluid/naphtha)

Formula 1 Rules – effective January 1, 2015 – © IRRA® be purpose built as steel tongues and meet all no larger than .086” (2.20mm) wide x 1.060” IRRA® measurement specifications. (27.18mm) long. 3g. The joining of brass sheet, plate, or strip 7. Tape/Lead: Lead weight may be added to a parts via tab and slot or "keyed" construction is chassis but may only be affixed to the top side of not permitted. the chassis. Strapping or other tape to control or 3h. Main chassis rails constructed of round steel restrict movements is allowed but may only be or brass wire maybe ground or sanded flat on affixed to the top side of the chassis. the bottom, but no more than 20% of the 7a. Taping a damaged body to a pan to finish a rail diameter may be removed. heat is permitted. The body must be repaired, 3i. Wire or tubing rails must connect the front and the tape removed, before the start of the and rear sections of the chassis. Using metal next heat of racing. Otherwise, the prohibition strip for this purpose is permitted. A rail is against the use of tape of any kind on the defined as that which connects the motor bottom of the chassis remains in place. bracket to the front of the chassis. D. Motor 3j. The bottom surface of the whole chassis 1. Motor types: May use any one of the following (including the motor, but excluding the motor motors, which must remain unopened and seal and guide flag) must be flat and straight in unmodified. all directions, with no bowing or drooping of any parts below the plane defined by the front and • Pro Slot Euro Mk 1 4002B and 4002B-B, rear clearance specifications. This will be sealed, with American arm, with bushing or ball bearing in can. May be refurbished by checked by applying a straight edge to the ® underside of the car both across the frame and an approved IRRA Service center along the length of the frame. • Topline or JK Falcon 7 • JK Retro Hawk FK • TSR D3 • Slick 7 Mini Brute Note: No other motors will be allowed unless approved by the IRRA® and added to the approved motor list. Please refer to the Motor Rules page for more information on motors. 2. At designated large IRRA® scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved motors. This will be announced well in advance and ample 4. Hinged Movements: Other than a drop arm, all time will be allowed on the day of the race for hinged movements must be oriented in only one the racer to obtain the motor and install it. If a direction on any individual chassis. race for this class is conducted using handout 4a. A chassis may have transverse hinges motors then the racer must use the motor(s) (examples: Iso-fulcrum hinges and plumber assigned to him/her. hinges) or it may have longitudinal hinges 3. Exclusion Clause: Clear violation of the motor- (example: side pan hinges) but the chassis may tampering rule will result in permanent exclusion not have both types. ® from future IRRA events of any kind. 4b. The number of individual hinges is not 3a. Racers will be required to sign a tech sheet restricted. giving permission for the Race Director, at his 4c. Centerline hinges are not allowed. discretion, to tear their motors down for 5. Front axle: A single straight, 3/32” (2.38mm) inspection to prove legality. minimum diameter, one-piece front axle is 3b. If a motor is deemed illegal due to required, carrying both front wheels. The axle unapproved modifications (including, but not may be fixed or in a tube. no hinged front wheel limited to, incorrect armature, bushing movements are allowed (i.e. no “L” arms). Front alterations, magnet shimming, magnet change, wheels may rotate independently. timed brush hoods, etc.), the racer will be 6. Guide: A single guide flag is allowed, centered disqualified from the event and future events on the longitudinal axis of the chassis (i.e. no until reinstated by IRRA® officials. sideways “free float” or offset) and with a blade 3c. If the motor is legal and can be refurbished, it will be sent to an approved IRRA®

Formula 1 Rules – effective January 1, 2015 – © IRRA® refurbishing program at no cost to the racer. visible from the top via a legal opening, such as Non-refurbishable motors found legal will be the front or rear axle area, are permissible in this replaced at no cost to the racer. class, providing no part, other than the axles 3d. Racers wishing to have their motor and/or axle tubes, exceeds the maximum 1.625" refurbished for continued use can participate in chassis width. the IRRA® Motor Refurbishing Program. 2d. Legal openings, such as air vents, etc., may 4. A motor may not be changed after tech be cut out. inspection or during a race except as follows: 2e. A minimum 1/8” (3.18mm) high front grille/air 4a. For those races where there is a move-up intake (if present) must remain visible on the from one main to another, motors can be trimmed body. changed and the car will go through a full tech 2f. F1 bodies may not be "wedged" or "raked" inspection. and must be mounted as level as possible. 4b. Should a racer's hand-out motor fail during Width across front wings (where present) must the qualifying run or the warm-up, the racer will be no wider than 2.875". be given the opportunity to change to another 2g. All bodies with ducktail type rears (i.e. Lotus hand-out motor without penalty, if a second 49/49B) cannot exceed 1.375" in height at the hand-out motor purchased by the racer is highest point. All other F1 bodies cannot exceed available. 1.125" in height at the highest point. E. Body 2h. Area of body behind rear wheel wells must not project below the center of rear axle. 1. All approved Formula 1 bodies are listed in the Approved Body Lists section. All bodies must be 3. Cockpit: All bodies must contain a painted (at representative of pre-1970 Formula 1 cars. least two colors), fully-molded, three- dimensional interior comprising a driver (helmet, 1a. Bodies may not be any less than .007” thick shoulders, and arms), a steering wheel, and on the sides. Any body found to be flimsy or a cockpit representation. An interior may be detriment to marshaling will need to be corrected mounted in any manner as long as it fully covers by the racer. Tape or body armor may be used the chassis when viewed from above. Interiors to achieve the desired side thickness. are to be mounted with the driver facing in the 2. Body style: Racers are encouraged to present proper direction cars with scale realism. Bodies must be those 3a. Molded-in cockpits are allowed as long as on the Approved Body List. they have dimensional scaling (not flat). 2a. No air-control devices may be added to the 3b. Interiors must be presentably painted and bodies realistically detailed 2b. Bodies must be presentably-painted and 3c. No paper interiors. carry at least three racing numbers, one on each side, and one on the front. To further clarify this 3d. If a Formula 1 body does not have a molded- regulation, all bodies must be fully opaque on all in driver, then the body must be totally cut out so sides except for those areas deemed to be the interior is in full view. windows. Windows may be tinted. The term opaque means covered by paint, tape, or other suitable material such that a finger is not visible through the paint or other covering under normal lighting. 2c. All chassis parts, to include the guide flag, must be covered by the unmodified body with the following exceptions: the guide may be visible on the sides of the body when the guide is turned and scale-appearing suspension or other cosmetic devices are allowed. The chassis can be visible through or on the sides of the rear sections of the body only if the full-size car was open in that area. For example, flat areas between the exhaust pipes may be left clear (but not removed), and chassis parts may be visible on the sides of bodies where the exhaust pipes gather in the center over the gear area. Chassis

GT Coupe-FK & GT Coupe-Pro Rules

A. Simplified Specification Reference 3. Maximum Rear Tire Width: 0.810” (20.57mm). • Racer eligibility: At Premier events, racers on the 4. Minimum Rear Tire Diameter: 0.8125” IRRA® "GTC-Pro Only" list may enter only GTC-Pro (20.64mm) across the full width of the tire. races. Racers not on that list may only enter the 5. Minimum Front Tire Width: 0.225” (5.72mm). GTC-FK races. The current "GTC-Pro Only" list is 5a. Wheels with O-ring ‘tires” are prohibited. available on the IRRA® website 5b. The front tire contact patch must touch the • Total Weight = 110 grams minimum track across the full width of the tire (i.e. no • Chassis Width = 3.125” maximum coning/angling or knife-edging is allowed). • Body Width = 3.250” at the wheel arches 5c. Tire edges may be rounded to a maximum • Body Thickness = .010” with .007” minimum on 1/16" radius. sides 6. Minimum Front Tire Diameter: 0.750” • Track Width, F & R = 3.125” (19.05mm) across the full width of the tire. • Chassis Clearance, F & R = .015” / .050” minimum 7. Minimum Rear Chassis Clearance: 0.050” (1.27mm). • Front Tire Diameter = .750” minimum • Front Tire Width = .225” minimum 7a. The entire motor bracket, gear, and all parts of the chassis (including pans) aft of the motor Rear Tire Diameter = .8125” minimum • mounting face of the bracket must meet this • Rear Tire Width = .810” maximum clearance. • Motor Type = For GTC-FK: Topline or JK Falcon 7, 7b. Clearance will be measured with front and JK Hawk Retro FK, TSR D3, Slick 7. rear tires sitting flat on the test block with the For GTC-Pro: All of the above and Pro Slot guide unsupported. PS4002B, PS4002B-B. 8. Minimum Front Chassis Clearance: 0.015” • Body Height = 1.375” maximum (0.38mm) • Front Grille = .063” (1/16”) 8a. This will be measured at the most forward • Spoiler Size / Height = no wider than body; .500” part of the chassis. maximum 8b. Clearance will be measured with front and • Rear Window: Painted, tinted, or covered with rear tires sitting flat on the test block with the interior guide unsupported. • Driver Figure / Interior = Fully molded, minimum 9. Axles (Front & Rear): 3/32” (2.38mm) two-color, presentably / realistically painted, no minimum diameter, one piece, solid steel. paper interiors 9a. Hollow axles are not allowed. B. General Specifications 9b. Axles may only be flattened in the areas 1. Maximum Overall Chassis Width: 3.125” where the wheels and gear are secured. (79.38mm), measured across any part of the 10. Bushings/Bearings: Oilite/bronze bushings or chassis, as well as across the front and rear ball bearings may be used in the front and/or the axles. rear. 2. Maximum Body Width: 3.250” (82.55mm), 11. Minimum Weight: 110 grams ready to race. measured at the front and rear wheel arches. GTC Rules – effective January 1, 2015 – © IRRA® 12. Drive Type: Inline drive only, with the motor 19a. Front wheels may be made of any material shaft at 90° to the rear axle. and can have any size hub (as long as the front 12a. The armature shaft of the motor must be wheel and tire dimensions listed elsewhere in located on the longitudinal center line of the these rules are observed). chassis, i.e. offset motors are not permitted. 19b. Front tires must be glued to the wheels and 13. Drive Gears: Any drive gear and ratio may be be made of black rubber; only SBR, Wonder, used. Crown gears must be commercially and natural rubber type materials are available and the only modifications allowed acceptable. Tires made from, or coated with, (other than making your own sleeve) are silicone, urethane, or other similar compounds, sanding of the diameter of the gear and may not be used. heating/burning it in for a smoother gear mesh. 19c. Front tires may be coated with cyano- Disallowed modifications would include, but are acrylate adhesive (“Super Glue”) or nail polish. not limited to, lightening, drilling, reversing the 19d. Tires may be cleaned during the race, in gear on the hub, repositioning the set screw between heats, and during lane changes. hole, changing or reconfiguring the hub, and/or Racers and their pit crews may only clean tires any other changes to the gear's size or using the supplied cleaner (lighter fluid/naphtha) appearance as compared to the stock provided by the hosting raceway/race production gear. director/series director. The approved cleaner 14. Maximum Front Axle Play: 0.125” (3.18mm), and supplied rag(s) that will be placed in a as part of the maximum front track width. designated area prior to the race and tires must 14a. At no time can tires extend out past the be cleaned in that designated area only. body. 19e. Any racer transferring tire cleaner to the 15. Maximum Rear Body Height: 1.375” track surface will be disqualified. (34.93mm) measured with the car on all four 19f. Tire treatments such as Zip Grip, Sticky wheels on a tech block (unsupported by the Fingers, or any other tire treatment may only be guide flag), from the tech block surface to the applied before the car is teched-in. No top of the highest point of the rear of the body, treatments will be allowed at any time after tech. excluding any add-on spoiler. The rear tires must be dry when the car is 15a. Severe raking of the body for aerodynamic presented at tech. effect is not allowed. 19g. Any racer or pit crew found applying tire 16. All chassis parts, including the guide flag, must treatments after tech, or cleaning tires with be covered by the unmodified body. anything other than the supplied cleaner and rags, will result in racer disqualification. 17. The wheels shall be located in relation to the wheel arches in the body. C. Chassis 18. Tires – Rear: Any commercially-available black 1. Chassis Type: Any personally-built or natural rubber tire, chemically-treated or commercially-available scratchbuilt chassis in kit untreated, on any size hub. form or built conforming to these specifications 18a. Speed Rubber is prohibited. is allowed. 18b. Tires may not be changed during a race. 2. Chassis Materials: Brass: sheet, rod, and Should a racer encounter a damaged tire/wheel tube; Bronze: rod; Steel: wire, pin tubing, and (stripped screw, bent hub, or chunked tire), the commercial guide tongues are allowed. No other racer will be afforded the opportunity to make materials are allowed. Chassis parts, such as the repair under the green and present the car to pans, brackets, guide tongues, etc., that are the tech inspector at the end of the heat for made using EDM, laser, or water-cutting checking before the racer will be allowed to techniques are allowed only if they are individual continue. commercially-available components or 18c. For races where there is a move-up from components of chassis kits (i.e. these one main to another, tires can be changed and techniques may not be used in the private the car will go through a full tech inspection. manufacture of one-off components). Materials such as printed circuit boards are not legal. 18d. Those racers making a move-up from one main to another and not choosing to change 3. Chassis Construction: tires will still be subject to tech inspection for 3a. Each car must have a one-piece brass rear legal tire diameter and chassis clearance. bracket consisting of at least three sides (vertical 19. Tires – Front: Must be made of two pieces, i.e. or horizontal), with each connected side having a wheel and a tire. a minimum width or height of at least .200".

GTC Rules – effective January 1, 2015 – © IRRA® 3b. The motor bracket must support the motor 4b. The number of individual hinges is not and extend to touch the rear axle tube. restricted. 3c. The axle tube does not need to pass through 4c. Centerline hinges are not allowed. the motor bracket. 5. Front axle: A single straight, 3/32” (2.38mm) 3d. The motor can be screwed to the motor minimum diameter, one-piece front axle is bracket and/or can also be soldered in place. required, carrying both front wheels. The axle 3e. Floating pin tubes inside another tube are may be fixed or in a tube. No hinged front wheel allowed. movements are allowed (i.e. no “L” arms). Front wheels may rotate independently. 3f. Pieces of steel used for guide tongues are limited to a maximum 1” (25.4mm) total width 6. Guide: A single guide flag is allowed, centered and 1.50” (38.1mm) total length. Steel tongues on the longitudinal axis of the chassis (i.e. no cut from the flexi and wing car chassis are not sideways “free float” or offset) and with a blade considered "commercial guide tongues" and are no larger than .086” (2.20mm) wide x 1.060” no longer allowed. All legal steel tongues must (27.18mm) long. be purpose built as steel tongues and meet all 7. Tape/Lead: Lead weight may be added to a IRRA® measurement specifications. chassis but may only be affixed to the top side of 3g. The joining of brass sheet, plate, or strip the chassis. Strapping or other tape to control or parts via tab and slot or "keyed" construction is restrict movements is allowed but may only be not permitted. affixed to the top side of the chassis. 3h. Main chassis rails constructed of round steel Taping a damaged body to a pan to finish a heat or brass wire maybe ground or sanded flat on is permitted. The body must be repaired, and the the bottom, but no more than 20% of the tape removed, before the start of the next heat rail diameter may be removed. of racing. Otherwise, the prohibition against the use of tape of any kind on the bottom of the 3i. Wire or tubing rails must connect the front chassis remains in place. and rear sections of the chassis. Using metal strip for this purpose is not permitted. A rail is D. Motor defined as that which connects the motor 1. Motor types: bracket to the front of the chassis. 1a. For the GTC-FK class, may use any one of 3j. The bottom surface of the whole chassis the following motors, which must remain (including the motor, but excluding the motor unopened and unmodified. seal and guide flag) must be flat and straight in all directions, with no bowing or drooping of any • Topline or JK Falcon 7 parts below the plane defined by the front and • JK Hawk Retro FK rear clearance specifications. This will be • TSR D3 checked by applying a straight edge to the • Slick 7 Mini Brute underside of the car both across the frame and 1b. For the GTC-Pro class, may use any one of along the length of the frame. the following motors, which may be refurbished by an approved IRRA® Service center. • Pro Slot Euro Mk 1 4002B and 4002B-B, sealed, with American arm, with bushing or ball bearing in can. Note: No other motors will be allowed unless approved by the IRRA® and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRA® scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved motors. This 4. Hinged Movements: Other than a drop arm, all will be announced well in advance and ample hinged movements must be oriented in only one time will be allowed on the day of the race for direction on any individual chassis. the racer to obtain the motor and install it. If a 4a. A chassis may have transverse hinges race for this class is conducted using handout (examples: Iso-fulcrum hinges and plumber motors then the racer must use the motor(s) hinges) or it may have longitudinal hinges assigned to him/her. (example: side pan hinges) but the chassis may 3. Exclusion Clause: Clear violation of the motor- not have both types. tampering rule will result in permanent exclusion from future IRRA® events of any kind. GTC Rules – effective January 1, 2015 – © IRRA® 3a. Racers will be required to sign a tech sheet 2d. No part of the chassis may be seen when giving permission for the Race Director, at his looking down on the car from above. Legal discretion, to tear their motors down for openings, such as air vents, etc., may be cut inspection to prove legality. out. 3b. If a motor is deemed illegal due to 2e. There should be a minimum 1/16” (1.59mm) unapproved modifications (including, but not vertical component and/or part of the grille along limited to, incorrect armature, bushing the front edge of the body unless this element alterations, magnet shimming, magnet change, was not on the original car (example: Ti22). timed brush hoods, etc.), the racer will be 2f. Area of body behind rear wheel wells must disqualified from the event and future events not project below the center of rear axle. until reinstated by IRRA® officials. 3. Spoilers and Air Control: A single, flat plastic 3c. Non-refurbishable motors found legal will be spoiler set at any angle may be added to the replaced at no cost to the racer. rear of the body only. 4. A motor may not be changed after tech 3a. The spoiler’s length is limited to a maximum inspection or during a race except as follows: of 1/2” (12.7mm) from the rear edge of the body 4a. For those races where there is a move-up and must be no wider than the outer edges of from one main to another, motors can be the body. changed and the car will go through a full tech 3b. No additional bends are allowed except for inspection. the one used to set the initial angle. 4b. Should a racer's hand-out motor fail during 3c. No side dams of any type are allowed. the qualifying run or the warm-up, the racer will 3d. Front diaplanes are not allowed. be given the opportunity to change to another hand-out motor without penalty, if a second 3e. High-mounted wings are allowed if used on hand-out motor purchased by the racer is the original full-size car. Such wings must be available. securely attached to the body and/or chassis. 3f. No notches can be cut in the spoiler above E. Body the bend line. 1. All approved GT-Coupe bodies are listed in the The .500" dimension shown below is the “Approved Body Lists” section. All bodies must maximum allowed height of the spoiler from the be representative of pre-1970 cars. edge of the body. This is where the bend line in 1a. Bodies may not be any less than .007” thick the spoiler is positioned. on the sides. Any body found to be flimsy or a detriment to marshaling will need to be corrected by the racer. Tape or body armor may be used to achieve the desired side thickness. 1b. Windows may not be cut out. 2. Body style: Racers are encouraged to present cars with scale realism. Bodies must be those on the approved body list. 2a. No “flattened” or “aerodynamically-improved” bodies allowed (i.e. no molded-in spoilers, wings, etc., that were not on the original full-size car or original mold). Note: molded-in spoilers 4. Cockpit: All bodies must contain a painted (at may not exceed the allowed specification least two colors), fully-molded, three- governing the maximum width of the body. dimensional interior comprising a driver (helmet, shoulders, and arms), a steering wheel, and 2b. Front wheel arches must be cut out. Rear cockpit representation. An interior may be wheel arches may be left closed if the original mounted in any manner as long as it fully covers full-size car ran with closed wheel arches. the chassis when viewed from above. Interiors 2c. Bodies must be presentably-painted and are to be mounted with the driver facing in the carry at least three racing numbers. To further proper direction clarify this regulation, all bodies must be fully 4a. Interiors must be presentably painted and opaque on all sides except for those areas realistically detailed. No paper interiors. deemed to be windows. Windows may be tinted. The term opaque means covered by paint, tape, 4c. Rear windows must be painted, tinted, or or other suitable material such that a finger is covered or have the interior under them. not visible through the paint or other covering under normal lighting. GTC Rules – effective January 1, 2015 – © IRRA®

Stock Car Rules

A. Simplified Specification Reference 7b. The front tire contact patch must touch the track across the full width of the tire (i.e. no Total Weight = 120 grams minimum • coning/angling or knife-edging is allowed). Chassis Width = 3.00” maximum • 7c. Tire edges may be rounded to a maximum • Wheelbase: 4.50” minimum 1/16” radius. • Guide Lead = .750 8. Minimum Front Tire Diameter: 0.8125” • Body Width = 3.250” at the wheel arches (20.64mm) across the full width of the tire. • Body Thickness = .015” with .010” minimum on 9. Minimum Rear Chassis Clearance: 0.050” sides (1.27mm). • Track Width, F & R = 3.00” maximum 9a.The entire motor bracket, gear, and all parts • Chassis Clearance, F & R = .050” / .050” minimum of the chassis (including pans) aft of the motor mounting face of the bracket must meet this • Tire Diameter, F & R = .8125” minimum clearance. • Front Tire Width = .375” minimum 9b. Clearance will be measured with front and Rear Tire Width = .810” maximum • rear tires sitting flat on the test block without the • Motor Type = Topline or JK Falcon 7, JK Retro guide being supported. Hawk, TSR D3, PS4002, Slick 7 10. Minimum Front Chassis Clearance: 0.050” • Gears: Production only; no modifications (1.27mm). • Driver Figure / Interior = Fully Molded, minimum 10a. This will be measured at the most forward two-color, presentably / realistically painted, no part of the chassis. paper interiors. 10b. Clearance will be measured with front and B. General Specifications rear tires sitting flat on the test block without the guide being supported. 1. Wheelbase: 4.50” (114.3mm) minimum. 11. Axles, Front & Rear: 3/32” (2.38mm) minimum 2. Guide Lead: Maximum of .750” (19.05mm) diameter, one-piece, solid steel. measured from the center of the front axle or 5.25” (133.35mm) when measured from the 11a. Hollow axles are not allowed. center of the rear wheels. 11b. Axles may only be flattened in the areas 3. Maximum Overall Chassis Width: 3.00” where the wheels and gear are secured. (76.02mm), measured across any part of the 12. Bushings/Bearings: Oilite/bronze bushings or chassis, as well as across the front and rear ball bearings may be used in the front and/or the axles). rear. 4. Maximum Body Width: 3.250” (82.55mm), 13. Minimum Weight: 120 grams ready to race. measured at the front and rear wheel arches. 14. Drive Type: Inline drive only, with the motor 5. Maximum Rear Tire Width: 0.810” (20.57mm). shaft at 90° to the rear axle. 6. Minimum Rear Tire Diameter: 0.8125” 14a. The armature shaft of the motor must be (20.64mm) across the full width of the tire. located on the longitudinal center line of the 7. Minimum Front Tire Width: 0.375” (9.53mm). chassis, i.e. offset motors are not permitted. 7a. Wheels with O-ring ‘tires” are prohibited. 15. Drive Gears: Any drive gear and ratio may be used. Crown gears must be commercially Stock Car Rules – effective January 1, 2015 – © IRRA® available and the only modifications allowed 21d. Tires may be cleaned during the race, in (other than making your own sleeve) are between heats, and during lane changes. sanding of the diameter of the gear and Racers and their pit crews may only clean tires heating/burning it in for a smoother gear mesh. using the supplied cleaner (lighter fluid/naphtha) Disallowed modifications would include, but are provided by the hosting raceway/race not limited to, lightening, drilling, reversing the director/series director. The approved cleaner gear on the hub, repositioning the set screw and supplied rag(s) that will be placed in a hole, changing or reconfiguring the hub, and/or designated area prior to the race and tires must any other changes to the gear's size or be cleaned in that designated area only. appearance as compared to the stock Any racer transferring tire cleaner to the track production gear. surface will be disqualified. 16. Maximum Front Axle Play: 0.125” (3.18mm), Tire treatments such as Zip Grip, Sticky Fingers, as part of the maximum front track width. At no or any other tire treatment may only be applied time can tires extend out past the body. before the car is teched-in. No treatments will be 17. Minimum Body Height: Body may not be allowed at any time after tech. The rear tires trimmed above the lower door lines. must be dry when the car is presented at tech. 17a. Severe raking of the body for aerodynamic Any racer or pit crew found applying tire effect is not allowed. treatments after tech, or cleaning tires with 18. All chassis parts must be covered by the anything other than the supplied cleaner and unmodified body. rags, will result in racer disqualification. 19. The wheels shall be located in relation to the C. Chassis wheel arches in the body. 1. Chassis Type: Any personally-built or 20. Tires – Rear: Any commercially-available black commercially-available scratchbuilt chassis in kit natural rubber tire, chemically-treated or form or built conforming to these specifications untreated, on any size hub. is allowed. 20a. Speed Rubber is prohibited. 2. Chassis Materials: Brass: sheet, rod, and 20b. Tires may not be changed during a race. tube; Bronze: rod; Steel: wire, pin tubing, and Should a racer encounter a damaged tire/wheel commercial guide tongues are allowed. No other (stripped screw, bent hub, or chunked tire), the materials are allowed. Chassis parts, such as racer will be afforded the opportunity to make pans, brackets, guide tongues, etc., that are the repair under the green and present the car to made using EDM, laser, or water-cutting the tech inspector at the end of the heat for techniques are allowed only if they are individual checking before the racer will be allowed to commercially-available components or continue. components of chassis kits (i.e. these 20c. For races where there is a move-up from techniques may not be used in the private one main to another, tires can be changed and manufacture of one-off components). Materials the car will go through a full tech inspection. such as printed circuit boards are not legal. 20d. Those racers making a move-up from one 3. Chassis Construction: main to another and not choosing to change 3a. Each car must have a one-piece brass rear tires will still be subject to tech inspection for bracket consisting of at least three sides (vertical legal tire diameter and chassis clearance. or horizontal), with each connected side having 21. Tires – Front: Must be made of two pieces, i.e. a minimum width or height of at least .200". a wheel and a tire. 3b. The motor bracket must support the motor 21a. Front wheels may be made of any material and extend to touch the rear axle tube. and can have any size hub (as long as the front 3c. The axle tube does not need to pass through wheel and tire dimensions listed elsewhere in the motor bracket. these rules are observed). 3d. The motor can be screwed to the motor 21b. Front tires must be glued to the wheels and bracket and/or can also be soldered in place. be made of black rubber; only SBR, Wonder, 3e. Floating pin tubes inside another tube are and natural rubber type materials are allowed. acceptable. Tires made from, or coated with, 3f. Pieces of steel used for guide tongues are silicone, urethane, or other similar compounds, limited to a maximum 1” (25.4mm) total width may not be used. and 1.50” (38.1mm) total length. Steel tongues 21c. Front tires may be coated with cyano- cut from the flexi and wing car chassis are not acrylate adhesive (“Super Glue”) or nail polish. Stock Car Rules – effective January 1, 2015 – © IRRA® considered "commercial guide tongues" and are no larger than .086” (2.20mm) wide x 1.060” no longer allowed. All legal steel tongues must (27.18mm) long. be purpose-built as steel tongues and meet all 7. Tape/Lead: Lead weight may be added to a ® IRRA measurement specifications. chassis but may only be affixed to the top side of 3g. The joining of brass sheet, plate, or strip the chassis. Strapping or other tape to control or parts via tab and slot or "keyed" construction is restrict movements is allowed but may only be not permitted. affixed to the top side of the chassis. 3h. Main chassis rails constructed of round steel Taping a damaged body to a pan to finish a heat or brass wire maybe ground or sanded flat on is permitted. The body must be repaired, and the the bottom, but no more than 20% of the tape removed, before the start of the next heat rail diameter may be removed. of racing. Otherwise, the prohibition against the 3i. Wire or tubing rails must connect the front use of tape of any kind on the bottom of the and rear sections of the chassis. Using metal chassis remains in place. strip for this purpose is not permitted. A rail is D. Motor defined as that which connects the motor bracket to the front of the chassis. 1. Motor types: May use any one of the following motors, which must remain unopened and 3j. The bottom surface of the whole chassis unmodified: (including the motor, but excluding the motor seal and guide flag) must be flat and straight in • Topline or JK Falcon 7 all directions, with no bowing or drooping of any • JK Retro Hawk FK parts below the plane defined by the front and • Pro Slot Euro Mk 1 4002, sealed, with rear clearance specifications. This will be Chinese arm. May be refurbished by an checked by applying a straight edge to the approved IRRA® Service Center underside of the car both across the frame and • TSR D3 along the length of the frame. • Slick 7 Mini Brute Note: No other motors will be allowed unless approved by the IRRA® and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRA® scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved motors. This will be announced well in advance and ample time will be allowed on the day of the race for the racer to obtain the motor and install it. If a 4. Hinged Movements: Other than a drop arm, all race for this class is conducted using hand-out hinged movements must be oriented in only one motors then the racer must use the motor(s) direction on any individual chassis. assigned to him/her. 4a. A chassis may have transverse hinges 3. Note: No other motors will be allowed unless (examples: Iso-fulcrum hinges and plumber approved by the IRRA® and added to the hinges) or it may have longitudinal hinges approved motor list. (example: side pan hinges) but the chassis may 4. Exclusion Clause: Clear violation of the motor- not have both types. tampering rule will result in permanent exclusion 4b. The number of individual hinges is not from future IRRA® events of any kind. restricted. 4a. Racers will be required to sign a tech sheet 4c. Centerline hinges are not allowed. giving permission for the Race Director, at his 5. Front axle: A single straight, 3/32” (2.38mm) discretion, to tear their motors down for minimum diameter, one-piece front axle is inspection to prove legality. required, carrying both front wheels. The axle 4b. If a motor is deemed illegal due to may be fixed or in a tube. No hinged front wheel unapproved modifications (including, but not movements are allowed (i.e. no “L” arms). Front limited to, incorrect armature, bushing wheels may rotate independently. alterations, magnet shimming, magnet change, 6. Guide: A single guide flag is allowed, centered timed brush hoods, etc.), the racer will be on the longitudinal axis of the chassis (i.e. no disqualified from the event and future events sideways “free float” or offset) and with a blade until reinstated by IRRA® officials.

Stock Car Rules – effective January 1, 2015 – © IRRA® 4c. Non-refurbishable motors found legal will be 3. Spoilers and Air Control: No add-on spoilers replaced at no cost to the racer. are allowed. 5. A motor may not be changed after tech 4. Cockpit: All bodies must contain a painted (at inspection or during a race except as follows: least two colors), fully-molded, three- 5a. For those races where there is a move-up dimensional interior comprising a driver (helmet, from one main to another, motors can be shoulders, and arms), a steering wheel, and changed and the car will go through a full tech cockpit representation. The interior must be inspection. attached to the body with the driver facing in the proper direction and fully the cover the chassis 5b. Should a racer's hand-out motor fail during when viewed from above. the qualifying run or the warm-up, the racer will be given the opportunity to change to another 4a. Interiors must be presentably painted and hand-out motor without penalty, if a second realistically detailed hand-out motor purchased by the racer is 4b. No paper interiors. available. E. Body 1. All approved Retro Stock Car bodies are listed in “Approved Body Lists” section. All bodies must be representative of pre-1970 cars and be 1/24 scale bodies with a wheelbase of 4.50” inches minimum. 1a. Bodies may not be any less than .010” thick on the sides. Any body found to be flimsy or a detriment to marshaling will need to be corrected by the racer. Tape or body armor may be used to achieve the desired side thickness. 2. Body style, Appearance, and Trim: Racers are encouraged to present cars with scale realism. 2a. All chassis parts, including the guide flag, must be covered by the unmodified body. No part of the chassis may be seen when looking down on the car. 2b. Bodies cannot be trimmed above the lower door lines. 2c. Front and rear wheel arches must be cut out and not exceed the molded wheel opening. 2d. The wheels shall be located in relation to the wheel arches in the body. 2e. Bodies must be presentably painted and carry at least three racing numbers, one on each side, and one large number on the roof, as in 1:1 Stock Car practice. 2f. The full bumper must remain intact except for trimming to provide clearance for the guide flag. Bodies such as the O/S Daytona must have the front spoiler left fully intact. 2g. All bodies must be fully opaque on all sides except for those areas deemed to be windows. The term opaque means covered with paint, tape, or other suitable material such that a finger is not visible through the paint or other covering under normal lighting. 2h. Windows may not be cut out. Windows may be tinted. Stock Car Rules – effective January 1, 2015 – © IRRA®

Can-Am PLUS Specifications & Rules

A. Simplified Specifications Reference parts below the plane defined by the front and rear clearance specifications. This will be Total Weight = No minimum • checked by applying a straight edge to the • Chassis Width = 3.125” maximum underside of the car both across the frame and • Body Width = 3.250” at the wheel arches along the length of the frame. • Body Thickness = .010” with .007” minimum on B. General Specifications sides 1. Maximum Overall Chassis Width: 3.125” • Track Width, F & R = 3.125” (79.38mm), measured across any part of the • Chassis Clearance, F & R = .015” / .047” chassis, as well as across the front and rear minimum tires and axles. • Front Tire Diameter = .600” minimum 2. Maximum Body Width: 3.250” (82.55mm), • Front Tire Width = .225” minimum measured at the front and rear wheel arches. • Rear Tire Diameter = No minimum 3. Maximum Rear Tire Width: 0.810” (20.57mm). • Rear Tire Width = .810” maximum 4. Minimum Rear Tire Diameter: None • Motor Type = Pro Slot PS4002FK 5. Minimum Front Tire Width: 0.225” (5.72mm). • Body Height = None 5a. Wheels with O-ring ‘tires” are prohibited. • Spoiler Size / Height = no wider than body; 5b. The front tire contact patch must touch the .500” (12.7mm) maximum height track across the full width of the tire (i.e. no • Driver Figure / Interior = Fully molded, coning/angling or knife-edging is allowed). minimum two-color, presentably / realistically 5c. Tire edges may be rounded to a maximum painted, no paper interiors 1/16" radius. • Approved bodies: RetroPro 6. Minimum Front Tire Diameter: 0.600” • Front wheel wells can be left clear or cut out. If (19.05mm) across the full width of the tire. clear then the wheel must be centered in the 7. Minimum Rear Chassis Clearance: 0.047” opening and at least 75% of wheel must be (1.27mm). visible. 7a. The entire motor bracket, gear, and all parts • Slight trimming of the body beyond the cut line of the chassis (including pans) aft of the motor at the front outside corners is allowed to correct mounting face of the bracket must meet this natural drooping clearance. • Body reinforcing material may be fitted under 7b. Clearance will be measured with front and the body and attached with clear tape and/or rear tires sitting flat on the test block with the staples. guide unsupported. • The bottom surface of the whole chassis 8. Minimum Front Chassis Clearance: 0.015” (including the motor, but excluding the motor (0.38mm). seal and guide flag) must be flat and straight in all directions, with no bowing or drooping of any Can-Am PLUS Rules – effective January 1, 2015 – © IRRA® 8a. This will be measured at the most forward 16c. For races where there is a move-up from part of the chassis. one main to another, tires can be changed and 8b. Clearance will be measured with front and the car will go through a full tech inspection. rear tires sitting flat on the test block with the 16d. Those racers making a move-up from one guide unsupported. main to another will still be subject to tech 9. Axles, Front & Rear: 3/32” (2.38mm) minimum inspection for legal chassis clearance. diameter, one piece, solid steel. 17. Tires – Front: Must be made of two pieces, i.e. 9a. Hollow axles are not allowed. a wheel and a tire. Wheel stickers are not permitted. 9b. Axles may only be flattened in the areas where the wheels and gear are secured. 17a. Front wheels may be made of any material and can have any size hub (as long as the front 10. Bushings/Bearings: Oilite/bronze bushings or wheel and tire dimensions listed elsewhere in ball bearings may be used in the front and/or the these rules are observed). rear. 17b. Front tires must be glued to the wheels and 11. Minimum Weight: No minimum. be made of black rubber; only SBR, Wonder, 12. Drive Type: Inline drive only, with the motor and natural rubber type materials are shaft at 90° to the rear axle. acceptable. Tires made from, or coated with, 12a. The armature shaft of the motor must be silicone, urethane, or other similar compounds, located on the longitudinal center line of the may not be used. chassis, i.e. offset motors are not permitted. 17c. Front tires may be coated with cyano- 13. Drive Gears: Any drive gear and ratio may be acrylate adhesive (“Super Glue”) or nail polish. used. Crown gears must be commercially 17d. Tires may be cleaned during the race, in available and the only modifications allowed between heats, and during lane changes. (other than making your own sleeve) are 17e. Racers and their pit crews may only clean sanding of the diameter of the gear and tires using the supplied cleaner (lighter heating/burning it in for a smoother gear mesh. fluid/naphtha) provided by the hosting Disallowed modifications would include, but are raceway/race director/series director. The not limited to, lightening, drilling, reversing the approved cleaner and supplied rag(s) that will be gear on the hub, repositioning the set screw placed in a designated area prior to the race and hole, changing or reconfiguring the hub, and/or tires must be cleaned in that designated area any other changes to the gear's size or only. Any racer transferring tire cleaner to the appearance as compared to the stock track surface will be disqualified. production gear. 14. Maximum Front Axle Play: 0.125” (3.18mm), 17f. Tire treatments such as Zip Grip, Sticky as part of the maximum front track width. Fingers, or any other tire treatment may only be applied before the car is teched-in. No 14a. At no time can tires extend out past the treatments will be allowed at any time after tech. body. The rear tires must be dry when the car is 15. Maximum Rear Body Height: None. No presented at tech. material, including flash plastic from the 17g. Any racer or pit crew found applying tire vacuum-forming process, may be added to the treatments after tech, or cleaning tires with vertical portion of the body to increase body anything other than the supplied cleaner and height. rags, will result in racer disqualification. 15a. Severe raking of the body for aerodynamic effect is not allowed. C. Chassis 16. Tires – Rear: Any commercially-available black 1. Chassis Type: Any personally-built or natural rubber tire, chemically-treated or commercially-available scratchbuilt chassis in kit untreated, on any size hub. form or built conforming to these specifications 16a. Speed rubber is prohibited. is allowed. 16b. Tires may not be changed during a race. 2. Chassis Materials: Brass: sheet, rod, and Should a racer encounter a damaged tire/wheel tube; Bronze: rod; Steel: wire, pin tubing, and (stripped screw, bent hub, or chunked tire), the commercial guide tongues are allowed. Pillow racer will be afforded the opportunity to make blocks can be made of brass or steel. No other the repair under the green and present the car to materials are allowed. Materials such as printed the tech inspector at the end of the heat for circuit boards are not legal. checking before the racer will be allowed to continue.

Can-Am Rules – effective January 1, 2015 – © IRRA® 3. Chassis Construction: may be fixed or in a tube. No hinged front wheel 3a. The motor can be screwed to a motor movements are allowed (i.e. no “L” arms). Front bracket if used and/or can also be soldered in wheels may rotate independently. place. 6. Guide: A single guide flag is allowed, centered 3b. Pillow blocks can be used in the front and on the longitudinal axis of the chassis (i.e. no rear. They are limited to being .500" (12.7mm) sideways “free float” or offset) and with a blade long and .500" (12.7mm) wide with the full length no larger than .086” (2.20mm) wide by 1.060” captured between piano wire, brass or bronze (27.18mm) long. rails when used in either the front or the rear of 7. Tape/Lead: Lead weight may be added to a chassis chassis but may only be affixed to the top side of 3c. Floating pin tubes inside another tube are the chassis. Strapping or other tape to control or allowed. restrict movements is allowed but may only be affixed to the top side of the chassis. 3d. Pieces of steel used for guide tongues are limited to a maximum 1” (25.4mm) total width 7a. Taping a damaged body to a pan to finish a and 1.50” (38.1mm) total length. Steel tongues heat is permitted. The body must be repaired, cut from the flexi and wing car chassis are not and the tape removed, before the start of the considered "commercial guide tongues" and are next heat of racing. Otherwise, the prohibition not allowed. against the use of tape of any kind on the bottom of the chassis remains in place. 3e. Main chassis rails constructed of round steel or brass wire maybe ground or sanded flat D. Motor 3f. Wire or tubing rails must connect the front 1. Motor types: May use any one of the following and rear sections of the chassis. Using metal motors, which must remain unopened and strip for this purpose is not permitted. A rail is unmodified. Brushes and springs may be defined as that which connects the motor changed but only 3-coil springs may be used. bracket to the front of the chassis. No steel Pro Slot PS4002FK center sections. • Note: No other motors will be allowed unless 3j. The bottom surface of the whole chassis approved by the IRRA® and added to the (including the motor, but excluding the motor approved motor list. seal and guide flag) must be flat and straight in ® all directions, with no bowing or drooping of any At designated large IRRA scheduled races, the parts below the plane defined by the front and track owner may elect to utilize a hand-out motor rear clearance specifications. This will be system, using one of the approved motors. This checked by applying a straight edge to the will be announced well in advance and ample underside of the car both across the frame and time will be allowed on the day of the race for along the length of the frame. the racer to obtain the motor and install it. If a race for this class is conducted using hand-out motors then the racer must use the motor(s) assigned to him/her. 2. Exclusion Clause: Clear violation of the motor- tampering rule will result in permanent exclusion from future IRRA® events of any kind. Racers will be required to sign a tech sheet giving permission for the Race Director, at his discretion, to tear their motors down for inspection to prove legality.

3. A motor may not be changed after tech

inspection or during a race except as follows: 4. Hinged Movements: 4a. For those races where there is a move-up 4a. Chassis may have hinges oriented in from one main to another, motors can be multiple directions. changed and the car will go through a full tech inspection. 4b. The number of individual hinges is not restricted. 4b. Should a racer's hand-out motor fail during the qualifying run or the warm-up, the racer will 4c. Centerline hinges are allowed be given the opportunity to change to another 5. Front axle: A single straight, 3/32” (2.38mm) hand-out motor without penalty, if a second minimum diameter, one-piece front axle is hand-out motor purchased by the racer is required, carrying both front wheels. The axle available.

Can-Am Rules – effective January 1, 2015 – © IRRA® E. Body Body reinforcing material may be fitted under the body and attached with clear tape and/or 1. All approved Can-Am bodies are listed in the staples. No reinforcing material may be visible “Approved Body Lists” section. All bodies must from the top of the body except as illustrated be representative of 1970 and beyond Can-Am here. cars. 1a. Bodies may not be any less than .007” thick on the sides. Any body found to be flimsy or a detriment to marshaling will need to be corrected by the racer. Tape or body armor may be used to achieve the desired side thickness. 1b. Maximum body length is 7 inches. 2. Body style: Racers are encouraged to present cars with scale realism. Bodies must be those on the approved body list. 2a. No “flattened” or “aerodynamically-improved” bodies allowed (i.e. no molded-in spoilers, wings, etc., that were not on the original mold). Note: molded-in spoilers may not exceed the allowed specification governing the maximum width of the body. 2b. Rear wheel arches must be cut out. Front wheel wells can be left clear or cut out. If clear then the wheel must be centered in the opening The above illustrations are courtesy of S.C.R.R.A. and at least 75% of wheel must be visible. 2c. Bodies must be presentably-painted and 3. Spoilers and Air Control: A single, flat plastic carry at least three racing numbers. All bodies spoiler set at any angle may be attached to the must be fully opaque on all sides except for rear of the body or under the rear of the body on those areas deemed to be windows. Windows the vertical portion behind the body. Spoilers may be tinted. The term opaque means covered may not be attached on top of the body. by paint, tape, or other suitable material such 3a. The spoiler’s length is limited to a maximum that a finger is not visible through the paint or of 1/2” (12.7mm) from the rear edge of the body other covering under normal lighting. and must be no wider than the outer edges of 2d. No part of the chassis may be seen when the body. looking down on the car from above. Legal 3b. No additional bends are allowed except for openings, such as air vents, etc., may be cut the one used to set the initial angle. out. 3c. No side dams of any type are allowed. 2e. Area of body behind rear wheel wells must not project below the center of rear axle. 3d. Front diaplanes are not allowed. 2f. Slight trimming of the body beyond the cut 3e. High-mounted wings are not allowed. line at the front outside corners is allowed to 3f. No notches can be cut in the spoiler above correct natural drooping, only as illustrated the bend line. Punched holes in the spoiler are below: not allowed. The .500" dimension shown below is the maximum allowed height of the spoiler from the edge of the body. This is where the bend line in the spoiler is positioned.

Can-Am Rules – effective January 1, 2015 – © IRRA® 4. Cockpit: All bodies must contain a painted (at least two colors), fully-molded, three- dimensional interior comprising a driver (helmet, shoulders, and arms), a steering wheel, and cockpit representation. An interior may be mounted in any manner as long as it fully covers the chassis when viewed from above. Interiors are to be mounted with the driver facing in the proper direction 4a. Interiors must be presentably painted and realistically detailed. No paper interiors. 4b. If a Can-Am body does not have a molded-in driver, then the body must be totally cut out so the interior is in full view.

Retro Anglewinder Rules

A. Simplified Specification Reference 5b. The front tire contact patch must touch the track across the full width of the tire (i.e. no Total Weight = 100 grams minimum • coning/angling or knife-edging is allowed). Chassis Width = 3.125” maximum • 5c. Tire edges may be rounded to a maximum • Body Width = 3.250” at the wheel arches 1/16" radius. • Body Thickness = .010” with .007” minimum on 6. Minimum Front Tire Diameter: 0.750” sides (19.05mm) across the full width of the tire. • Track Width, F & R = 3.125” 7. Minimum Rear Chassis Clearance: 0.050” • Chassis Clearance, F & R = .015” / .050” minimum (1.27mm). • Front Tire Diameter = .750” minimum 7a. The entire motor bracket, gear, and all parts • Front Tire Width = .225” minimum of the chassis (including pans) aft of the motor mounting face of the bracket must meet this • Rear Tire Diameter = .790” minimum clearance. • Rear Tire Width = .810” maximum 7b. Clearance will be measured with front and Motor Type = PS 4002B, PS4002B-B, PS4002, JK • rear tires sitting flat on the test block with the Hawk Retro FK, Topline or JK Falcon 7,TSR D3, guide unsupported. Slick 7 8. Minimum Front Chassis Clearance: 0.015” Body Height = 1.375” maximum • (0.38mm) Front Grille = .063” (1/16”) except Ti22 • 8a. This will be measured at the most forward • Spoiler Size / Height = no wider than body; .500” part of the chassis. maximum 8b. Clearance will be measured with front and • GTC body = Rear window must be painted, tinted, rear tires sitting flat on the test block with the or covered with interior guide unsupported. • Driver Figure / Interior = Fully molded, minimum 9. Axles (Front & Rear): 3/32” (2.38mm) two-color, presentably / realistically painted, no minimum diameter, one piece, solid steel. paper interior 9a. Hollow axles are not allowed. B. General Specifications 9b. Axles may only be flattened in the areas 1. Maximum Overall Chassis Width: 3.125” where the wheels and gear are secured. (79.38mm), measured across any part of the 10. Bushings/Bearings: Oilite/bronze bushings or chassis, as well as across the front and rear ball bearings may be used in the front and/or the axles. rear. 2. Maximum Body Width: 3.250” (82.55mm), 11. Minimum Weight: 100 grams ready to race. measured at the front and rear wheel arches. 12. Drive Type: Anglewinder. 3. Maximum Rear Tire Width: 0.810” (20.57mm). 13. Drive Gears: Any drive gear and ratio may be 4. Minimum Rear Tire Diameter: 0.790” used. (20.64mm) across the full width of the tire. 14. Maximum Front Axle Play: 0.125” (3.18mm), 5. Minimum Front Tire Width: 0.225” (5.72mm). as part of the maximum front track width. 5a. Wheels with O-ring ‘tires” are prohibited. 14a. At no time can tires extend out past the body. Retro Anglewinder Rules – effective January 1, 2015 – © IRRA® 15. Maximum Rear Body Height: 1.375” Tire treatments such as Zip Grip, Sticky Fingers, (34.93mm) measured with the car on all four or any other tire treatment may only be applied wheels on a tech block (unsupported by the before the car is teched-in. No treatments will be guide flag), from the tech block surface to the allowed at any time after tech. The rear tires top of the highest point of the rear of the body, must be dry when the car is presented at tech. excluding any add-on spoiler. Any racer or pit crew found applying tire 15a. Severe raking of the body for aerodynamic treatments after tech, or cleaning tires with effect is not allowed. anything other than the supplied cleaner and 16. All chassis parts, including the guide flag, must rags, will result in racer disqualification. be covered by the unmodified body. C. Chassis 17. The wheels shall be located in relation to the 1. Chassis Type: Any personally-built or wheel arches in the body. commercially-available scratchbuilt chassis in kit 18. Tires – Rear: Any commercially-available black form or built conforming to these specifications natural rubber tire, chemically-treated or is allowed. untreated, on any size hub. 2. Chassis Materials: 18a. Speed Rubber is prohibited. 2a. Brass: sheet, rod, and tube; Bronze: rod are 18b. Tires may not be changed during a race. allowed. Pans, if used, must be brass. Should a racer encounter a damaged tire/wheel 2b. Steel: Wire, rod, and tube are allowed. Steel (stripped screw, bent hub, or chunked tire), the sheet is allowed for guide tongues only. racer will be afforded the opportunity to make the repair under the green and present the car to 2c. The use of spring steel is not allowed the tech inspector at the end of the heat for 2d. Steel commercial guide tongues are allowed checking before the racer will be allowed to and are limited to a maximum 1” (25.4mm) total continue. width and 1.50” (38.1mm) total length. 18c. For races where there is a move-up from 2e. No other materials are allowed. one main to another, tires can be changed and 2f. Chassis parts, such as pans, brackets, guide the car will go through a full tech inspection. tongues, etc., that are made using EDM, laser, 18d. Those racers making a move-up from one or water-cutting techniques are allowed only if main to another and not choosing to change they are individual commercially-available tires will still be subject to tech inspection for components or components of chassis kits (i.e. legal tire diameter and chassis clearance. these techniques may not be used in the private 19. Tires – Front: Must be made of two pieces, i.e. manufacture of one-off components). a wheel and a tire. 2g. Each car must have a brass rear axle tube 19a. Front wheels may be made of any material that can be notched to clear the motor. and can have any size hub (as long as the front 2h. No “pillow block” (bearing holders made wheel and tire dimensions listed elsewhere in where only a piece of brass or steel holds the these rules are observed). bearing in place) type rear ends allowed. 19b. Front tires must be glued to the wheels and 2i. Motors may be mounted with or without a be made of black rubber; only SBR, Wonder, bracket. If a bracket is used, it must be made of and natural rubber type materials are brass. acceptable. Tires made from, or coated with, 2j. The motor can or endbell cannot be notched silicone, urethane, or other similar compounds, or cut. may not be used. 2k. Pre-made steel motor to axle braces are not 19c. Front tires may be coated with cyano- allowed. acrylate adhesive (“Super Glue”) or nail polish. 2l. Floating pin tubes inside another tube are 19d. Tires may be cleaned during the race, in allowed. between heats, and during lane changes. 2m. Pieces of steel used for guide tongues are Racers and their pit crews may only clean tires limited to a maximum 1” (25.4mm) total width using the supplied cleaner (lighter fluid/naphtha) and 1.50” (38.1mm) total length. Steel tongues provided by the hosting raceway/race cut from the flexi and wing car chassis are not director/series director. The approved cleaner considered "commercial guide tongues" and are and supplied rag(s) that will be placed in a no longer allowed. All legal steel tongues must designated area prior to the race and tires must be purpose built as steel tongues and meet all be cleaned in that designated area only. IRRA® measurement specifications. Any racer transferring tire cleaner to the track surface will be disqualified.

Retro Anglewinder Rules – effective January 1, 2015 – © IRRA® 2n.The joining of brass sheet, plate, or strip use of tape of any kind on the bottom of the parts via tab and slot or "keyed" construction is chassis remains in place. not permitted. D. Motor 2o. Main chassis rails constructed of round steel or brass wire maybe ground or sanded flat on 1. Motor types: May use any one of the following the bottom, but no more than 20% of the motors, which must remain unopened and rail diameter may be removed. unmodified. 2p. Wire or tubing rails must connect the front • Topline or JK Falcon 7 and rear sections of the chassis. Using metal • JK Hawk Retro FK strip for this purpose is not permitted. A rail is • Pro Slot Euro Mk 1 4002, Sealed with defined as that which connects the motor Chinese arm. May be refurbished by an bracket to the front of the chassis. IRRA® Service Center 2q. The bottom surface of the whole chassis • Pro Slot Euro Mk 1 4002B and 4002B-B, (including the motor, but excluding the motor sealed, with American arm, with regular seal and guide flag) must be flat and straight in bushing or ball bearing in can. May be all directions, with no bowing or drooping of any refurbished by an IRRA® Service Center parts below the plane defined by the front and • TSR D3 rear clearance specifications. This will be • Slick 7 Mini Brute checked by applying a straight edge to the Note: No other motors will be allowed unless underside of the car both across the frame and approved by the IRRA® and added to the along the length of the frame. approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRA® scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved motors. This will be announced well in advance and ample time will be allowed on the day of the race for the racer to obtain the motor and install it. If a race for this class is conducted using handout motors then the racer must use the motor(s) assigned to him/her. 3. Hinged Movements: Hinges are unrestricted/unlimited. 3. Exclusion Clause: Clear violation of the motor- tampering rule will result in permanent exclusion 3a. The number of individual hinges is not from future IRRA® events of any kind. restricted. 3a. Racers will be required to sign a tech sheet 3b. Centerline hinges are not allowed. giving permission for the Race Director, at his 4. Front axle: A single straight, 3/32” (2.38mm) discretion, to tear their motors down for minimum diameter, one-piece front axle is inspection to prove legality. required, carrying both front wheels. The axle 3b. If a motor is deemed illegal due to may be fixed or in a tube. No hinged front wheel unapproved modifications (including, but not movements are allowed (i.e. no “L” arms). Front limited to, incorrect armature, bushing wheels may rotate independently. alterations, magnet shimming, magnet change, 5. Guide: A single guide flag is allowed, centered timed brush hoods, etc.), the racer will be on the longitudinal axis of the chassis (i.e. no disqualified from the event and future events sideways “free float” or offset) and with a blade until reinstated by IRRA® officials. no larger than .086” (2.20mm) wide x 1.060” 3c. If the motor is legal and can be refurbished, (27.18mm) long. it will be sent to an approved IRRA® 6. Tape/Lead: Lead weight may be added to a refurbishing program at no cost to the racer. chassis but may only be affixed to the top side of Non-refurbishable motors found legal will be the chassis. Strapping or other tape to control or replaced at no cost to the racer. restrict movements is allowed but may only be 3d. Racers wishing to have their motor affixed to the top side of the chassis. refurbished for continued use can participate in Taping a damaged body to a pan to finish a heat the IRRA® Motor Refurbishing Program. is permitted. The body must be repaired, and the 4. A motor may not be changed after tech tape removed, before the start of the next heat inspection or during a race except as follows: of racing. Otherwise, the prohibition against the

Retro Anglewinder Rules – effective January 1, 2015 – © IRRA® 4a. For those races where there is a move-up 3. Spoilers and Air Control: A single, flat plastic from one main to another, motors can be spoiler set at any angle may be added to the changed and the car will go through a full tech rear of the body only. inspection. 3a. The spoiler’s length is limited to a maximum 4b. Should a racer's hand-out motor fail during of 1/2” (12.7mm) from the rear edge of the body the qualifying run or the warm-up, the racer will and must be no wider than the outer edges of be given the opportunity to change to another the body. hand-out motor without penalty, if a second 3b. No additional bends are allowed except for hand-out motor purchased by the racer is the one used to set the initial angle. available. 3c. No side dams of any type are allowed. E. Body 3d. Front diaplanes are not allowed. 1. This class can have either the approved Can- 3e. High-mounted wings are allowed if they are Am bodies used or the GT Coupe bodies used used on the original full-size car. Such wings as determined prior to a scheduled race and must be securely attached to the body and/or announced in advance. The two types of bodies chassis. are not allowed in the same race. 3f. No notches can be cut in the spoiler above All approved Can-Am and GT Coupe bodies are the bend line. listed in the “Approved Body Lists” section. All The .500" dimension shown below is the bodies must be representative of pre-1970 cars. maximum allowed height of the spoiler from the 1a. Bodies may not be any less than .007” thick edge of the body. This is where the bend line in on the sides. Any body found to be flimsy or a the spoiler is positioned. detriment to marshaling will need to be corrected by the racer. Tape or body armor may be used to achieve the desired side thickness. 2. Body style: Racers are encouraged to present cars with scale realism. Bodies must be those on the approved body list. 2a. No “flattened” or “aerodynamically-improved” bodies allowed (i.e. no molded-in spoilers, wings, etc., that were not on the original full-size car or original mold). Note: molded-in spoilers may not exceed the allowed specification governing the maximum width of the body. 2b. Front wheel arches must be cut out. Rear 4. Cockpit: All bodies must contain a painted (at wheel arches may be left closed if the original least two colors), fully-molded, three- full-size car ran with closed wheel arches. dimensional interior comprising a driver (helmet, 2c. Bodies must be presentably-painted and shoulders, and arms), a steering wheel, and carry at least three racing numbers. To further cockpit representation. An interior may be clarify this regulation, all bodies must be fully mounted in any manner as long it fully covers opaque on all sides except for those areas the chassis when viewed from above. Interiors deemed to be windows. Windows may be tinted. are to be mounted with the driver facing in the The term opaque means covered by paint, tape, proper direction. or other suitable material such that a finger is 4a.Interiors must be presentably painted and not visible through the paint or other covering realistically detailed. No paper interiors. under normal lighting. 4b. If a Can-Am body does not have a molded-in 2d. No part of the chassis may be seen when driver, then the body must be totally cut out so looking down on the car from above. Legal the interior is in full view. openings, such as air vents, etc., may be cut out. 4c. Bodies with molded-in interiors must still have something to cover the view of the chassis 2e. There should be a minimum 1/16” (1.59mm) through the window. vertical component and/or part of the grille along the front edge of the body unless this element was not on the original car (example: Ti22). 2f. Area of body behind rear wheel wells must not project below the center of rear axle.