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

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

Mission and General Rules

Mission Statement TM The purpose of this organization is: • The IRRA trademark may be used specify the rule set being enforced at a slot racing event, i.e. • to promote a return to the spirit of slot car racing the 2008 Noose 500 Retro Can-Am run under fun from the ‘60s, using scratchbuilt slot cars IRRA™ Rules, the Cheater Crash-o-Rama for • to define slot cars that reflect the appearance of IRRA™ Can-Am Cars, or IRRA™ style Can-Am actual racing cars from the above time period racing every Friday night. • to provide a unified set of rules for regional, national, and international competition, and Allowable Use of the IRRA™ Rules TM • to create a rules structure that is cost-effective Permission to use and publish the copyrighted IRRA for the racer as well as the raceways. rules is granted if and ony if the rules are unchanged and unmodified in any manner. The notice of "Copyright These rules were developed after a careful review of all IRRATM" also must be included. regional Retro style rule sets, in a process begun at the first national Retro race held in Chicago in 2007. IRRATM Board of Directors Based upon the success of that event, a group of racers Joe Neumeister - Body & Tech chairs representing various regions agreed that a unified set of Mike McMasters - Competition & Co-Component chairs rules for major events could be established to ensure Tony Pryzbilowicz (Tony P) - Motor & Co-Chassis chairs that all cars currently running under regional rules would be legal to run in national or international events with Mike Swiss - Co-Component & Co-Chassis chairs little, if any, modification. The primary goal was Greg Wells - Sergeant at Arms & Marketing chair inclusiveness. Regions running Retro series are TM • Samples of any new items for use under IRRA encouraged to adopt these rules for their regional rules (such as motors and bodies) must be sent events. to the appropriate committee chair for further Though the result of careful consideration by a body of review by the board and committee members. experienced slot racing participants, these rules will Items must be available to raceways from the undergo revision if required and therefore may evolve manufacturer, through the manufacturer's over time. However, the intent of this organization is to distribution system, or via the normal distributor revise these rules only when doing so is clearly network. necessary and beneficial for all parties concerned. • Any part, material, technique, or rules Announcements and the latest rules updates and interpretation not specifically allowed under decisions will be posted on the IRRATM website. IRRATM rules is not legal and is prohibited! The IRRATM reserves the right during technical Please note that anyone running any of the classes inspection to disallow any car that does not meet defined in these rules who choose to establish the intent of the rules. alternative rules is prohibited from announcing that the class is being run under IRRA™ rules unless the Tier Grouping rules are used exactly as defined. The various classes within IRRATM have been divided General Rules into two tier groups to guide race organizers in selecting the classes to run, especially at large events. Allowable Use of the IRRA™ Trademark Tier 1 Classes – to be run at all large events (these TM TM • IRRA is a trademark of the International Retro are the IRRA Premier classes) TM Racers Association (IRRA ) and may not be • Can-Am used without express written permission. • Formula 1 TM • IRRA is a rules-making body only and does • GT Coupe-PD not sanction, approve, sponsor, or hold slot Tier 2 Classes – to be selected by the race racing events. For this reason, the trademark organizers as additional classes IRRA™ may not be used in the names of races, • GT Coupe-FK i.e. the Mid-Alaska IRRATM Moose Maul or the • Retro Stock Car Golden Grain IRRATM Nats. • Retro Anglewinder General Rules – effective January 1, 2014 – © IRRATM • A "GTC-PD Only" list will be maintained and Track Condition published by IRRATM stipulating which racers will not TM • 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 IRRATM website for the current "GTC-PD Only" drivers list. Tire Cleaning and other Fluids • If a racer wins the GTC-FK class at a Premier event • Tires may be cleaned during the race, in between then that racer will be added to the list and can only heats, and during lane changes. Racers and their pit race in the GTC-PD Class at future Premier events. crews may only clean tires using the supplied cleaner (lighter fluid/naphtha) provided by the Regionally, it is up to the Race/Series Director(s) to • hosting raceway/race director/series director. The determine if they want to allow all racers to run in the approved cleaner and supplied rag(s) that will be GTC-FK class or to run both GTC-FK and GTC-PD placed in a designated area prior to the race and classes. tires must be cleaned in that designated area only. Hand-out Motors • Any racer transferring tire cleaner to the track TM • At designated large scheduled races using IRRA surface will be disqualified. rules, the track owner/Race Director may elect to • Tire treatments such as Zip Grip, Sticky Fingers, or utilize a hand-out motor system, using one of the any other tire treatment may only be applied before approved motors. This will be announced well in the car is teched-in. No treatments will be allowed at advance and ample time will be allowed on the day any time after tech. The rear tires must be dry when of the race for the racer to obtain and install his the car is presented at tech. hand-out motor. If a race for this class is conducted using hand-out motors then the racer must use only • Any racer or pit crew found applying tire treatments the hand-out motor(s) assigned to him/her. after tech, or cleaning tires with anything other than the supplied cleaner and rags, will result in racer • Should a racer’s hand-out motor fail during the disqualification. qualifying run or warm-up, the racer will be given the opportunity to change to another hand-out motor • Racers cannot leave any residue on the track from without penalty, if a second hand-out motor either braid juice or oiling of the car. Braid juice is to be used sparingly on the car's braid and is not purchased by the racer is available. allowed to be placed on the track's braid. Racers Entry Fee should not oil their cars over the track's surface or • The entry fee amount will be determined by the use excess amounts that can leave a residual Race Committee in concert with the raceway owner amount on the track's surface. and will be announced in advance of the event. Race Formats • Every effort will be made to include track time in this § All heats will be a minimum of 3 minutes in length. fee. If that is not possible, then an announcement § The length of the break between heats will normally will be made as to the cost of track time or “pit pass”. be 2 minutes, although this may be increased by the Tech Inspection Race Committee in consideration of the facility layout at the particular event's raceway. • The starting and closing times for tech inspection will be announced by the Tech Director prior to the § All drivers are required to utilize Lane Change Cards event. to mark the stopping position of their cars at the end • Any driver whose car is not teched-in by the close of of each heat. Drivers who fail to use Lane Change tech inspection will not race in that class. Cards as required will have their cars moved to start • All cars will be impounded after tech inspection and the next heat from a position immediately past the cannot be touched or worked on until the Tech lap counter’s dead strip. Director distributes them immediately before the Option A – 11 or less entrants beginning of each race. § Applies when there are 11 or less entrants • Any driver found working on his car during the impound period will be disqualified. § Qualifying is optional. • The Race Director, at his discretion, may perform a § If qualifying held, lane choices selected in order second technical inspection after the race is of fastest qualifier to slowest qualifier with completed. appropriate sit-outs allowed if following a round- robin format.

General Rules – effective January 1, 2014 – © IRRATM Option B – A, B, C Mains with Move-ups cause the driver to suffer a ten-lap penalty. A § Qualifying is held. third 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 TM under IRRATM 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 IRRATM the right to photograph all cars surface) will be black-flagged. (including the chassis), and to publish such photos for the benefit of fellow racers, the • A car that is black-flagged must be immediately betterment of the hobby, and the promotion of removed from the track until proper repairs are TM made. Failure to comply with a black flag will IRRA racing. 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 unsportsmanlike conduct. A second offense will General Rules – effective January 1, 2014 – © IRRATM

Quick Reference This is a quick reference of the major specifications for each class. Can-Am GT Coupe - PD

• Total Weight = 100 grams minimum • Total Weight = 110 grams minimum • Chassis Width = 3.125” maximum • Chassis Width = 3.125” maximum • Body Width = 3.250” at the wheel arches • Body Width = 3.250” at the wheel arches • Body Thickness = .010" with .007" minimum on sides • Body Thickness = .010" with .007" minimum on sides • Track Width, F & R = 3.125” • Track Width, F & R = 3.125” • Chassis Clearance, F & R = .015” / .050” minimum • Chassis Clearance, F & R = .015” / .050” minimum • Front Tire Diameter = .750” minimum • Front Tire Diameter = .750” minimum • Front Tire Width = .225” minimum • Front Tire Width = .225” minimum • Rear Tire Diameter = .8125” minimum • Rear Tire Diameter = .8125” minimum • Rear Tire Width = .810” maximum • Rear Tire Width = .810” maximum • Motor Type = PS4002B, PS4002B-B, Topline or JK Falcon 7, JK • Motor Type = PS4002B, PS4002B-B Hawk Retro FK, TSR D3, Slick 7 • Gears = Production only; no modifications except sanding • Gears = Production only; no modifications except sanding diameter diameter • Body Height = 1.375” maximum • Body Height = 1.375” maximum • Front Grille = .063” (1/16”) • Front Grille = .063” (1/16”) except Ti22 • Spoiler Size / Height = no wider than body; .500” maximum • 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, • Driver Figure / Interior = Fully molded, minimum two-color, presentably / realistically painted, no paper interiors presentably / realistically painted, no paper interiors

Formula 1 GT Coupe - FK

• Total Weight = 100 grams minimum • Chassis Width = 1.625” maximum • Racer Eligibility At IRRATM Premier events, racers on the • Body Width = 1.685” excluding front wings if present IRRATM "GTC-PD Only" list may enter only GTC-PD races. • Minimum Wheelbase = 3.875” Racers not on the that list may enter both GTC-FK and GTC-PD. • Maximum Wheelbase = 4.250” • Total Weight = 110 grams minimum • Body Thickness = .010 with .007 minimum on sides • Chassis Width = 3.125” maximum • Track Width, F & R = 3.250” • Body Width = 3.250” at the wheel arches • Chassis Clearance, F & R = .015” / .050” minimum for major • Body Thickness = .010" with .007" minimum on sides events; .040” rear if regionally allowed along with .790” tire • Track Width, F & R = 3.125” • Front Tire Diameter = .750” minimum • Chassis Clearance, F & R = .015” / .050” minimum • Front Tire Width = .375” minimum • Front Tire Diameter = .750” minimum Rear Tire Diameter = .8125” minimum for major events; .790” if • • Front Tire Width = .225” minimum regionally allowed along with .040” rear clearance • Rear Tire Diameter = .8125” minimum Rear Tire Width = .810” maximum • • Rear Tire Width = .810” maximum Motor Type = PS4002B, 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, Slick 7 Gears = Production only; no modifications except sanding • • Gears = Production only; no modifications except sanding diameter diameter Body Height, Lotus 49 style = 1.375” maximum • • Body Height = 1.375” maximum Front Wings, Lotus 49 style = Width across front wings 2.875" • • Front Grille = /.063” (1/16”) maximum. • Spoiler Size / Height = no wider than body; .500” maximum • Body Height, All Others = 1.125” maximum • Rear Window = Painted, tinted, or covered with interior. • Front Grille = .125” (1/8”) • Driver Figure / Interior = Fully molded, minimum two-color, • Driver Figure / Interior = Fully molded, minimum two-color, presentably / realistically painted, no paper interiors presentably / realistically painted, no paper interiors Quick Reference – effective January 1, 2014 – © IRRATM 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” maximum • 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 = Fully molded, minimum two-color, • Driver Figure / Interior = Fully molded, minimum two-color, presentably / realistically painted, no paper interiors presentably / realistically painted, no paper interiors. The rear window must be painted, tinted, or covered with interior on GTC bodies

Quick Reference – effective January 1, 2014 – © IRRATM

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 of 30 AWG wire • 60 turns of 31 AWG wire • 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 "Puppy Dog", sealed, with American-made arm, part number PS4002B or PS4002B-B – refurbishable

• 65 turns of 30 AWG wire • Stack length - .390" • Arm timing - 15 degrees nominal, commutator tied • Diameter - .513" • Magnets - Neodymium • 75 turns of 31 AWG wire • Internal brushes and springs • Stack length - .400" • Oilite bushings • Diameter - .513" • Arm timing - 25 degrees nominal TSR D3, part number TD301 • Magnets - ceramic • External brushes and springs • Oilite bushings

Slick 7 Mini Brute, part number S7-588A

• 65 turns of 30 AWG wire • Stack length - .375" • Arm timing - 3 degrees nominal • Diameter - .513" • 82 turns of 31 AWG wire • Magnets - Neodymium • Stack length - .375" • Internal brushes and springs • Arm timing - 5 degrees nominal • Oilite bushings • Diameter - .513" • Magnets - ceramic • Internal brushes and springs • Oilite bushings

Note: armature dimensions exclude any coatings, if present.

Motor Rules – effective January 1, 2014 – © IRRATM If a manufacturer releases a new or modified version of IRRA™ Motor Specifications and Rules a previously-approved IRRA™ motor without informing Applies to: Pro Slot 4002B and Pro Slot 4002B-B the IRRA™ of such changes, the IRRA™ Board, at its motors. discretion, may remove that motor from the list of motors approved for use in IRRA™ competition. IRRA™ also 1) All motors must be remain unmodified and as reserves the right to add new motors or to remove any produced by Pro Slot. previously-approved motor from the list of approved 2) "Pre-furbished" motors, i.e. new motors that are motors. refurbished before being used, are not allowed. Any motors with changed specifications submitted for 3) Armatures are to be tagged "PD". IRRA™ approval must carry a new part number. The 4) Armatures are to be wound with 75 turns of 31 gauge IRRA™ reserves the right to ask manufacturers for wire. unique tags and/or can markings for identification 5) Minimum armature diameter is .512"; minimum purposes on motors submitted for inclusion in the armature stack length is .390". IRRA™ approved motors list. 6) Commutator timing is not to be modified from the Approved refurbishers for Pro Slot Motors: factory "25 degrees nominal" setting. Arms with over 30 degrees timing will be replaced by Pro Slot if no Fast Ones: contact is Ron Hershman evidence of tampering is detected; if tampering is Pro Slot Ltd: contact is Dan DeBella detected, the arm will be destroyed. (click names to email) 7) Armatures are to be balanced, rebalanced, and commutators re-trued by authorized IRRA™ Service Centers only. IRRA™ Motor Refurbisher Requirements 8) Motor cans must remain unmodified and as produced Applies to: Pro Slot Ltd and Fast Ones, as by Pro Slot. Grinding where the can is soldered to the designated IRRA™ Service Centers performing motor bracket is permitted. refurbishing work on Pro Slot PS4002, PS4002B, and 9) Motor air gap is not to be changed/modified from its PS 4002B-BB motors factory specifications, which is a nominal .530". Air gap must measure between .525" and .540". IRRA™ Service Center operators are NOT permitted to enter IRRA™ events using Pro Slot motors that 10) Magnets must be unmodified stock Pro Slot factory they themselves have refurbished. Refurbers will be production units only and cannot be honed or ground. required to race ONLY using Pro Slot motors that Magnets will be retained in place using clear CA have been refurbished and sealed by another ("Super Glue") only. Magnet recharging is allowed. approved IRRA™ Service Center, or new motors 11) Ball bearing is allowed on can side of motor only. obtained from factory-sealed packaging. No endbell ball bearings allowed. Can ball bearing and can oilite bushing may be soldered in place. IRRA™ Service Centers must certify that any motor 12) Endbells are to remain unmodified. Stock factory submitted in one or more of the following conditions will endbell hardware is to be used unmodified (any not be refurbed: grinding of the hoods done at the Pro Slot factory for 1) A motor that is unassembled, modified, and/or where commutator clearance is allowed). Hardware screws work obviously was done elsewhere, i.e. not by one maybe be changed in case of a stripped endbell. of the two IRRA™ Service Centers. 13) Only three-coil motor springs of any brand are 2) A motor received with a damaged seal that doesn't allowed. Springs may be "tweaked" to adjust tension. cover at least two screws. Older production motors 14) Any 36D size motor brushes may be used. Brushes using foil seals or that were produced without endbell may be radiused but any other cutting, slotting, screws will be refurbed at the refurbishers discretion drilling, or modification of the brush face contacting pending validation of specifications. comm is not allowed. Narrowing of brush height or 3) Refubishers will not "verify and seal" motors as the width is not allowed. Shunt wires and spring only "work" performed. insulation are not allowed. 4) Refurbishers will not seal any out-of-spec motors. 15) Can to endbell screws must be used, with an Any motor with parts found to be illegal and out-of- unmodified refurbisher's seal covering the screws. spec with evidence of tampering will be Only Pro Slot and Fast Ones seals may be used. destroyed. Parts found to be out-of-spec without Seals may be protected with clear coating. Damaged signs of tampering will be replaced by Pro Slot. seals must retain a single piece of seal material 5) The Service Centers will communicate to IRRA™ covering at least two endbell screws. BoD receipt of any and all motors with out-of-spec or 16) External clip-on motor heatsinks and commutator illegal parts. arm-shaft mounted coolers are allowed.

Motor Rules – effective January 1, 2014 – © IRRATM IRRA™ Motor Rules Applies to: Topline & JK Falcon 7, JK Retro Hawk FK, TSR D3, and Slick 7 Mini Brute 1) All motors must be remain unmodified and as produced by the manufacturer. 2) Motor cans must remain unmodified and as produced by the manufacturer. Factory external motor can dimensions may not be changed by crushing or other methods. Grinding where the can is soldered to the motor bracket is permitted. 3) Factory armature timing must remain unmodified. 4) Endbells may not be removed and reinstalled. 5) External clip-on motor heatsinks and commutator arm-shaft mounted coolers are allowed. Motor Protest Procedure Any competitor racing in the same class/race as another competitor may protest another racer's motor. The protest must be filed with the official in charge of event before the completion of the race in which the suspect motor is being raced/used. The fee for protesting another motor varies with the type of motor: For Pro Slot motors (i.e. PS4002, 4002B, PS4002B- B), protest free is $75. For all other motors (i.e. Topline or JK Falcon, Hawk Retro, TSR D3, Slick 7 Mini Brute), protest fee is $40.

The protest fee must be paid in cash immediately after the race finishes. At the conclusion of the race, the protested motor will be removed from the car by the race official or in front of the race official. Once the motor is out of the car the race official will mark the motor, which will be impounded by the official in charge to be sent in for teardown and verification. The impounded motor will be sent to the IRRA™ Motor Chair or his designate for verification. The race results will stand, to be amended later if the protested motor is found to be illegal or out of spec. The IRRA™ BoD will be notified of the results of the motor inspection and verification process. IRRA™ will release an official statement of the findings within ten days. Said statement may include notification that the racer using the illegal motor was found in violation and subject to the statement in the Exclusion Clause of the rules. If the motor is found to be illegal or out of spec, the protester will get his protest fee returned in full. If the motor is found to be legal and in spec, the motor's owner will receive the full protest fee.

Motor Rules – effective January 1, 2014 – © IRRATM

IRRATM 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, 2014 – © IRRATM

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, 2014 – © IRRATM

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, 2014 – © IRRATM

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, 2014 – © IRRATM

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, 2014 – © IRRATM

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, 2014 – © IRRATM

Mirage

Mirage M1C - TrueScale TSR23 Mirage M2 - TrueScale TSR15

Porsche

Porsche Carrera - JK 1903 Porsche 908 - TrueScale TSR09

Approved Bodies – effective January 1, 2014 – © IRRATM

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, 2014 – © IRRATM

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, 2014 – © IRRATM

McLaren

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

Stock Car

Ford Fairlane

'67 Ford Fairlane - OS602

Ford Torino

Ford Torino - OS604

Ford Torino Talladega

Talladega - OS651

Chevy

Chevy Chevelle - OS650 Chevy Chevelle - OS652 '65 Chevy Impala - VFC N04

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 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 Grill = .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, 2014 – © IRRATM 13. Drive Gears: Any drive gear and ratio may be silicone, urethane, or other similar compounds, used. Crown gears must be commercially may not be used. available and the only modifications allowed 17c. Front tires may be coated with (other than making your own sleeve) are cyanoacrylate adhesive (“Super Glue”) or nail sanding of the diameter of the gear and polish. heating/burning it in for a smoother gear mesh. 17d. Tires may be cleaned during the race, in Disallowed modifications would include, but are between heats, and during lane changes. not limited to, lightening, drilling, reversing the gear on the hub, repositioning the set screw 17e. Racers and their pit crews may only clean hole, changing or reconfiguring the hub, and/or tires using the supplied cleaner (lighter any other changes to the gear's size or fluid/naphtha) provided by the hosting appearance as compared to the stock raceway/race director/series director. The production gear. approved cleaner and supplied rag(s) that will be placed in a designated area prior to the race and 14. Maximum Front Axle Play: 0.125” (3.18mm), tires must be cleaned in that designated area as part of the maximum front track width. only. Any racer transferring tire cleaner to the 14a. At no time can tires extend out past the track surface will be disqualified. body. 17f. Tire treatments such as Zip Grip, Sticky 15. Maximum Rear Body Height: 1.375” Fingers, or any other tire treatment may only be (34.93mm) measured with the car on all four applied before the car is teched-in. No wheels on a tech block (unsupported by the treatments will be allowed at any time after tech. guide flag), from the tech block surface to the The rear tires must be dry when the car is top of the highest point of the rear of the body, presented at tech. excluding any add-on spoiler. 17g. 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. Tires – Rear: Any commercially-available black rags, will result in racer disqualification. natural rubber tire, chemically-treated or untreated, on any size hub. C. Chassis 16a. Speed rubber is prohibited. 1. Chassis Type: Any personally-built or commercially-available scratchbuilt chassis in kit 16b. Tires may not be changed during a race. form or built conforming to these specifications Should a racer encounter a damaged tire/wheel is allowed. (stripped screw, bent hub, or chunked tire), the racer will be afforded the opportunity to make 2. Chassis Materials: Brass: sheet, rod, and the repair under the green and present the car to tube; Bronze: rod; Steel: wire, pin tubing, and the tech inspector at the end of the heat for commercial guide tongues are allowed. No other checking before the racer will be allowed to materials are allowed. Chassis parts, such as continue. pans, brackets, guide tongues, etc., that are made using EDM, laser, or water-cutting 16c. For those races where there is a move-up techniques are allowed only if they are individual from one main to another, tires can be changed commercially-available components or and the car will go through a full tech inspection. components of chassis kits (i.e. these 16d. Those racers making a move-up from one techniques may not be used in the private main to another and not choosing to change manufacture of one-off components). Materials tires will still be subject to tech inspection for such as printed circuit boards are not legal. legal tire diameter and chassis clearance. 3. Chassis Construction: 17. Tires – Front: Must be made of two pieces, i.e. 3a. Each car must have a one-piece brass rear a wheel and a tire. Wheel stickers are not bracket consisting of at least three sides (vertical permitted. or horizontal), with each connected side having 17a. Front wheels may be made of any material a minimum width or height of at least .200". and can have any size hub (as long as the front 3b. The motor bracket must support the motor wheel and tire dimensions listed elsewhere in and extend to touch the rear axle tube or contain these rules are observed). the rear bushings/bearings. 17b. Front tires must be glued to the wheels and 3c. The axle tube, if used, does not need to pass be made of black rubber; only SBR, Wonder, through the motor bracket. and natural rubber type materials are acceptable. Tires made from, or coated with,

Can-Am Rules – effective January 1, 2014 – © IRRATM 3d. The motor can be screwed to the motor 5. Front axle: A single straight, 3/32” (2.38mm) bracket and/or can also be soldered in place. minimum diameter, one-piece front axle is 3e. Floating pin tubes inside another tube are required, carrying both front wheels. The axle allowed. may be fixed or in a tube. No hinged front wheel movements are allowed (i.e. no “L” arms). Front 3f. Pieces of steel used for guide tongues are wheels may rotate independently. limited to a maximum 1” (25.4mm) total width and 1.50” (38.1mm) total length. Steel tongues 6. Guide: A single guide flag is allowed, centered cut from the flexi and wing car chassis are not on the longitudinal axis of the chassis (i.e. no considered "commercial guide tongues" and are sideways “free float” or offset) and with a blade no longer allowed. All legal steel tongues must no larger than .086” (2.20mm) wide by 1.060” be purpose-built as steel tongues and meet all (27.18mm) long. IRRATM measurement specifications. 7. Tape/Lead: Lead weight may be added to a 3g. The joining of brass sheet, plate, or strip chassis but may only be affixed to the top side of parts via tab and slot or "keyed" construction is the chassis. Strapping or other tape to control or not permitted. restrict movements is allowed but may only be affixed to the top side of the chassis. 3h. Main chassis rails constructed of round steel or brass wire maybe ground or sanded flat on 7a. Taping a damaged body to a pan to finish a the bottom, but no more than 20% of the heat is permitted. The body must be repaired, rail diameter may be removed. and the tape removed, before the start of the next heat of racing. Otherwise, the prohibition 3i. Wire or tubing rails must connect the front against the use of tape of any kind on the and rear sections of the chassis. Using metal bottom of the chassis remains in place. strip for this purpose is not permitted. A rail is defined as that which connects the motor D. Motor bracket to the front of the chassis. 1. Motor types: May use any one of the following 3j. The bottom surface of the whole chassis motors, which must remain unopened and (including the motor, but excluding the motor unmodified. seal and guide flag) must be flat and straight in • Pro Slot Euro Mk 1 4002B and 4002B- all directions, with no bowing or drooping of any B, sealed, with American arm, with parts below the plane defined by the front and bushing or ball bearing in can. May be rear clearance specifications. This will be TM refurbished by an approved IRRA checked by applying a straight edge to the Service center underside of the car both across the frame and 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 IRRATM and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRATM 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 4. Hinged Movements: Other than a drop arm, all and ample time will be allowed on the day of the hinged movements must be oriented in only one race for the racer to obtain the motor and install direction on any individual chassis. it. If a race for this class is conducted using 4a. A chassis may have transverse hinges hand-out motors then the racer must use the (examples: Iso-fulcrum hinges and plumber motor(s) 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. TM from future IRRA events of any kind. Racers 4b. The number of individual hinges is not will be required to sign a tech sheet giving restricted. permission for the Race Director, at his 4c. Centerline hinges are not allowed. discretion, to tear their motors down for inspection to prove legality. Can-Am Rules – effective January 1, 2014 – © IRRATM 4. A motor may not be changed after tech 3. Spoilers and Air Control: A single, flat plastic inspection or during a race except as follows: spoiler set at any angle may be attached to the 4a. For those races where there is a move-up rear of the body or under the rear of the body on from one main to another, motors can be the vertical portion behind the body. Spoilers changed and the car will go through a full tech may not be attached on top of the body. 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. All approved Can-Am bodies are listed in the 3e. High-mounted wings are allowed if they are “Approved Body Lists” section. All bodies must used on the original full-size car. Such wings be representative of pre-1970 Can-Am/USRRC must be securely attached to the body and/or cars. chassis. 1a. Bodies may not be any less than .007” thick 3f. No notches can be cut in the spoiler above on the sides. Any body found to be flimsy or a the bend line. Punched holes in the spoiler are detriment to marshaling will need to be corrected not allowed. by the racer. Tape or body armor may be used Here is an illustration. The .500" shown is the to achieve the desired side thickness. maximum allowed height of the spoiler from the 1b. Maximum body length is 6-3/4” (171.5mm). edge of the body. This is where the bend line in the spoiler is positioned. 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 full-size car ran with closed wheel arches. 2c. Bodies must be presentably-painted and carry at least three racing numbers. All bodies 4. Cockpit: All bodies must carry a painted (at must be fully opaque on all sides except for least two colors), fully-molded three-dimensional those areas deemed to be windows. Windows interior comprising a driver (helmet, shoulders, may be tinted. The term opaque means covered and arms), a steering wheel, and cockpit by paint, tape, or other suitable material such representation. that a finger is not visible through the paint or other covering under normal lighting. 4a.Interiors must be presentably painted and realistically detailed. No paper interiors. 2d. No part of the chassis may be seen when 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 grill 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.

Formula 1 Rules

A. Simplified Specification Reference 5. Minimum Front Tire Width: 0.375” (9.53mm). • Total Weight = 100 grams minimum 5a. Wheels with O-ring ‘tires” are prohibited. • Chassis Width = 1.625” maximum 5b. The front tire contact patch must touch the track across the full width of the tire (i.e. no • Body Width = 1.685” excluding front wings if coning/angling or knife-edging is allowed). present 5c.Tire edges may be rounded to a maximum • Minimum Wheelbase = 3.875” 1/16" radius. • Maximum Wheelbase = 4.250” 6. Minimum Front Tire Diameter: 0.750” • Body Thickness = .010” with .007” minimum on (19.05mm) across the full width of the tire. sides 7. Minimum Wheelbase: 3.875” (98.43mm). • Track Width, F & R = 3.250” 8. Maximum Wheelbase: 4.250” (107.95mm). • Chassis Clearance, F & R = .015” / .050” minimum for major events; .040” rear if regionally allowed 9. Minimum Rear Chassis Clearance: 0.050” (1.27mm). • Front Tire Diameter = .750” minimum 9a. The entire motor bracket, gear, and all parts • Front Tire Width = .375” minimum of the chassis (including pans) aft of the motor • Rear Tire Diameter = .8125” minimum for major mounting face of the bracket must meet this events; .790” if regionally clearance. • Rear Tire Width = .810” maximum 9b. Clearance will be measured with front and • Motor Type = PS4002B, PS4002B-B, Topline or JK rear tires sitting flat on the test block with the Falcon 7, JK Retro Hawk, TSR D3, Slick 7 guide unsupported. • Body Height, Lotus 49 style = 1.375” maximum 9c. IRRATM regions may also allow .040” rear • Front Wings, Lotus 49 style = 2.875" maximum clearance along with .790” rear tire diameter. All width across front wings IRRATM Premier races will use .050” / .812”. • Body Height, all others = 1.125” maximum 10. Minimum Front Chassis Clearance: 0.015” • Front Grill = .125” (1/8”) (0.38mm) • 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 with the guide unsupported. 1. Maximum Overall Car Width: 3.25” 11. Maximum Chassis Width: 1-5/8” (41.28mm), (82.55mm), measured across front and rear excluding axle tubes and axles. axles. 12. Axles (Front & Rear): 3/32” (2.38mm) 2. Maximum Body Width: 1.685” excluding front minimum diameter, one-piece, solid steel. wings as on the Lotus 49 and similar bodies. 12a. Hollow axles are not allowed. 3. Maximum Rear Tire Width: 0.810” (20.57mm). 12b. Axles may only be flattened in the areas 4. Minimum Rear Tire Diameter: 0.8125” where the wheels and gear are secured. (20.64mm”) across the full width of the tire. .790” may be allowed regionally in combination with 13. Bushings/Bearings: Oilite/bronze bushings or .040” rear clearance. All IRRATM Premier races ball bearings may be used in the front and/or the will use .050” clearance / .812” diameter. rear.

Formula 1 Rules – effective January 1, 2014 – © IRRATM 14. Minimum Weight: 100 grams ready to race. 19d. Tires may be cleaned during the race, in 15. Drive Type: Inline drive only, with the motor between heats, and during lane changes. shaft at 90° to the rear axle. Racers and their pit crews may only clean tires using the supplied cleaner (lighter fluid/naphtha) 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 heating/burning it in for a smoother gear mesh. 19f. Tire treatments such as Zip Grip, Sticky Disallowed modifications would include, but are Fingers, or any other tire treatment may only be not limited to, lightening, drilling, reversing the applied before the car is teched-in. No gear on the hub, repositioning the set screw treatments will be allowed at any time after tech. hole, changing or reconfiguring the hub, and/or The rear tires must be dry when the car is any other changes to the gear's size or presented at tech. appearance as compared to the stock 19g. Any racer or pit crew found applying tire production gear. treatments after tech, or cleaning tires with 17. Maximum Front Axle Play: 0.125” (3.18mm), anything other than the supplied cleaner and as part of the maximum front track width. rags, will result in racer disqualification. 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 18b. Tires may not be changed during a race. is allowed. 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 18c. For those races where there is a move-up commercially-available components or from one main to another, tires can be changed components of chassis kits (i.e. these and the car will go through a full tech inspection. techniques may not be used in the private 18d. Those racers making a move-up from one manufacture of one-off components). Materials main to another and not choosing to change such as printed circuit boards are not legal. tires will still be subject to tech inspection for 3. Chassis Construction: legal tire diameter and chassis clearance. 3a. Each car must have a one-piece brass rear 19. Tires – Front: Must be made of two pieces, i.e. bracket consisting of at least three sides (vertical a wheel and a tire. or horizontal), with each connected side having 19a. Front wheels may be made of any material a minimum width or height of at least .200". and can have any size hub (as long as the front 3b. The motor bracket must support the motor wheel and tire dimensions listed elsewhere in and extend to touch the rear axle tube. these rules are observed). 3c. The axle tube does not need to pass through 19b. Front tires must be glued to the wheels and the motor bracket. 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 limited to a maximum 1” (25.4mm) total width cyanoacrylate adhesive (“Super Glue”) or nail and 1.50” (38.1mm) total length. Steel tongues polish. Formula 1 Rules – effective January 1, 2014 – © IRRATM cut from the flexi and wing car chassis are not 6. Guide: A single guide flag is allowed, centered considered "commercial guide tongues" and are on the longitudinal axis of the chassis (i.e. no no longer allowed. All legal steel tongues must sideways “free float” or offset) and with a blade be purpose built as steel tongues and meet all no larger than .086” (2.20mm) wide x 1.060” IRRATM 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 now permitted. The body must be 3i. Wire or tubing rails must connect the front repaired, and the tape removed, before the start and rear sections of the chassis. Using metal of the next heat of racing. Otherwise, the strip for this purpose is permitted. A rail is prohibition against the use of tape of any kind on defined as that which connects the motor the 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- rear clearance specifications. This will be B, sealed, with American arm, with bushing or ball bearing in can. May be checked by applying a straight edge to the TM underside of the car both across the frame and refurbished by an approved IRRA along the length of the frame. Service center • 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 IRRATM and added to the approved motor list. Please refer to the Motor Rules page for more information on motors. 2. At designated large IRRATM scheduled races, the track owner may elect to utilize a hand-out motor system, using one of the approved 4. Hinged Movements: Other than a drop arm, all motors. This will be announced well in advance hinged movements must be oriented in only one and ample time will be allowed on the day of the direction on any individual chassis. race for the racer to obtain the motor and install 4a. A chassis may have transverse hinges it. If a race for this class is conducted using (examples: Iso-fulcrum hinges and plumber handout motors then the racer must use the hinges) or it may have longitudinal hinges motor(s) 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 4b. The number of individual hinges is not from future IRRATM events of any kind. restricted. 3a. 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 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, timed brush hoods, etc.), the racer will be

Formula 1 Rules – effective January 1, 2014 – © IRRATM disqualified from the event and future events open in that area. For example, flat areas until reinstated by IRRATM officials. between the exhaust pipes may be left clear (but 3c. If the motor is legal and can be refurbished, not removed), and chassis parts may be visible it will be sent to an approved IRRATM on the sides of bodies where the exhaust pipes refurbishing program at no cost to the racer. gather in the center over the gear area. Chassis Non-refurbishable motors found legal will be visible from the top via a legal opening, such as replaced at no cost to the racer. the front or rear axle area, are permissable in this 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 IRRATM 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 grill/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 inspection. 2f. F1 bodies may not be "wedged" or "raked" 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 hand-out motor without penalty, if a second 2g. All bodies with ducktail type rears (i.e. Lotus hand-out motor purchased by the racer is 49/49B) cannot exceed 1.375" in height at the available. highest point. All other F1 bodies cannot exceed 1.125" in height at the highest point. E. Body 3. Cockpit: All bodies must carry a painted (at 1. All approved Formula 1 bodies are listed in the least two colors), fully-molded three-dimensional Approved Body Lists section. All bodies must be interior comprising a driver (helmet, shoulders, representative of pre-1970 Formula 1 cars. and arms), a steering wheel, rollbar, and cockpit 1a. Bodies may not be any less than .007” thick representation. on the sides. Any body found to be flimsy or a 3a. Molded-in cockpits are allowed as long as detriment to marshaling will need to be corrected they have dimensional scaling (not flat). by the racer. Tape or body armor may be used 3b.Interiors must be presentably painted and to achieve the desired side thickness. realistically detailed 2. Body style: Racers are encouraged to present 3c. No paper interiors. cars with scale realism. Bodies must be those on the Approved Body List. 3d. If a Formula 1 body does not have a molded- in driver, then the body must be totally cut out so 2a. No air-control devices may be added to the the interior is in full view. bodies 2b. Bodies must be presentably-painted and carry at least three racing numbers, one on each side, and one on the front. To further clarify this regulation, all bodies must be fully opaque on all sides except for those areas deemed to be 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

GT Coupe-FK & GT Coupe-PD 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” IRRATM "GTC-PD Only" list may enter only GTC-PD (20.64mm) across the full width of the tire. races. Racers not on that list may enter both GTC- 5. Minimum Front Tire Width: 0.225” (5.72mm). FK and GTC-PD races. The current "GTC-PD Only" 5a. Wheels with O-ring ‘tires” are prohibited. list is available on the IRRATM 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. For GTC-PD: rear tires sitting flat on the test block with the Pro Slot PS4002B, PS4002B-B. guide unsupported. • Body Height = 1.375” maximum 8. Minimum Front Chassis Clearance: 0.015” • Front Grill = .063” (1/16”) (0.38mm) • Spoiler Size / Height = no wider than body; .500” 8a. This will be measured at the most forward maximum part of the chassis. • Rear Window: Painted, tinted, or covered with 8b. Clearance will be measured with front and interior rear tires sitting flat on the test block with the • Driver Figure / Interior = Fully molded, minimum guide unsupported. two-color, presentably / realistically painted, no 9. Axles (Front & Rear): 3/32” (2.38mm) paper interiors minimum diameter, one piece, solid steel. B. General Specifications 9a. Hollow axles are not allowed. 1. Maximum Overall Chassis Width: 3.125” 9b. Axles may only be flattened in the areas (79.38mm), measured across any part of the where the wheels and gear are secured. chassis, as well as across the front and rear 10. Bushings/Bearings: Oilite/bronze bushings or axles. ball bearings may be used in the front and/or the 2. Maximum Body Width: 3.250” (82.55mm), rear. measured at the front and rear wheel arches. 11. Minimum Weight: 110 grams ready to race.

GTC Rules – effective January 1, 2014 – © IRRATM 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. 19c. Front tires may be coated with 13. Drive Gears: Only production gears are cyanoacrylate adhesive (“Super Glue”) or nail allowed but any ratio is allowed. The only polish. modification allowed is the addition of a 1/8" 19d. Tires may be cleaned during the race, in reducing sleeve for use with a 3/32" axle. Gear between heats, and during lane changes. may be heated/burned in for a smoother gear Racers and their pit crews may only clean tires mesh. Gears may not be sanded or ground. using the supplied cleaner (lighter fluid/naphtha) 14. Maximum Front Axle Play: 0.125” (3.18mm), provided by the hosting raceway/race as part of the maximum front track width. director/series director. The approved cleaner and supplied rag(s) that will be placed in a 14a. At no time can tires extend out past the designated area prior to the race and tires must body. be cleaned in that designated area only. 15. Maximum Rear Body Height: 1.375” 19e. Any racer transferring tire cleaner to the (34.93mm) measured with the car on all four track surface will be disqualified. wheels on a tech block (unsupported by the guide flag), from the tech block surface to the 19f. Tire treatments such as Zip Grip, Sticky top of the highest point of the rear of the body, Fingers, or any other tire treatment may only be excluding any add-on spoiler. applied before the car is teched-in. No treatments will be allowed at any time after tech. 15a. Severe raking of the body for aerodynamic The rear tires must be dry when the car is effect is not allowed. presented at tech. 16. All chassis parts, including the guide flag, must 19g. Any racer or pit crew found applying tire be covered by the unmodified body. treatments after tech, or cleaning tires with 17. The wheels shall be located in relation to the anything other than the supplied cleaner and wheel arches in the body. rags, will result in racer disqualification. 18. Tires – Rear: Any commercially-available black natural rubber tire, chemically-treated or C. Chassis untreated, on any size hub. 1. Chassis Type: Any personally-built or 18a. Speed Rubber is prohibited. commercially-available scratchbuilt chassis in kit form or built conforming to these specifications 18b. Tires may not be changed during a race. is allowed. Should a racer encounter a damaged tire/wheel (stripped screw, bent hub, or chunked tire), the 2. Chassis Materials: Brass: sheet, rod, and racer will be afforded the opportunity to make tube; Bronze: rod; Steel: wire, pin tubing, and the repair under the green and present the car to commercial guide tongues are allowed. No other the tech inspector at the end of the heat for materials are allowed. Chassis parts, such as checking before the racer will be allowed to pans, brackets, guide tongues, etc., that are continue. made using EDM, laser, or water-cutting techniques are allowed only if they are individual 18c. For those races where there is a move-up commercially-available components or from one main to another, tires can be changed components of chassis kits (i.e. these and the car will go through a full tech inspection. techniques may not be used in the private 18d. Those racers making a move-up from one manufacture of one-off components). Materials main to another and not choosing to change such as printed circuit boards are not legal. tires will still be subject to tech inspection for 3. Chassis Construction: legal tire diameter and chassis clearance. 3a. Each car must have a one-piece brass rear 19. Tires – Front: Must be made of two pieces, i.e. bracket consisting of at least three sides (vertical a wheel and a tire. or horizontal), with each connected side having 19a. Front wheels may be made of any material a minimum width or height of at least .200". and can have any size hub (as long as the front 3b. The motor bracket must support the motor wheel and tire dimensions listed elsewhere in and extend to touch the rear axle tube. these rules are observed). 3c. The axle tube does not need to pass through 19b. Front tires must be glued to the wheels and the motor bracket. be made of black rubber; only SBR, Wonder,

GTC Rules – effective January 1, 2014 – © IRRATM 3d. The motor can be screwed to the motor 5. Front axle: A single straight, 3/32” (2.38mm) bracket and/or can also be soldered in place. minimum diameter, one-piece front axle is 3e. Floating pin tubes inside another tube are required, carrying both front wheels. The axle allowed. may be fixed or in a tube. No hinged front wheel movements are allowed (i.e. no “L” arms). Front 3f. Pieces of steel used for guide tongues are wheels may rotate independently. limited to a maximum 1” (25.4mm) total width and 1.50” (38.1mm) total length. Steel tongues 6. Guide: A single guide flag is allowed, centered cut from the flexi and wing car chassis are not on the longitudinal axis of the chassis (i.e. no considered "commercial guide tongues" and are sideways “free float” or offset) and with a blade no longer allowed. All legal steel tongues must no larger than .086” (2.20mm) wide x 1.060” be purpose built as steel tongues and meet all (27.18mm) long. IRRATM measurement specifications. 7. Tape/Lead: Lead weight may be added to a 3g. The joining of brass sheet, plate, or strip chassis but may only be affixed to the top side of parts via tab and slot or "keyed" construction is the chassis. Strapping or other tape to control or not permitted. restrict movements is allowed but may only be affixed to the top side of the chassis. 3h. Main chassis rails constructed of round steel or brass wire maybe ground or sanded flat on Taping a damaged body to a pan to finish a heat the bottom, but no more than 20% of the is now permitted. The body must be repaired, rail diameter may be removed. and the tape removed, before the start of the next heat of racing. Otherwise, the prohibition 3i. Wire or tubing rails must connect the front against the use of tape of any kind on the and rear sections of the chassis. Using metal bottom of the chassis remains in place. strip for this purpose is not permitted. A rail is defined as that which connects the motor D. Motor bracket to the front of the chassis. 1. Motor types: 3j. The bottom surface of the whole chassis 1a. For the GTC-FK class, may use any one of (including the motor, but excluding the motor the following motors, which must remain seal and guide flag) must be flat and straight in unopened and unmodified. all directions, with no bowing or drooping of any parts below the plane defined by the front and • Topline or JK Falcon 7 rear clearance specifications. This will be • JK Hawk Retro FK checked by applying a straight edge to the • TSR D3 underside of the car both across the frame and • Slick 7 Mini Brute along the length of the frame. 1b. For the GTC-PD class, may use any one of the following motors, which may be refurbished by an approved IRRATM 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 IRRATM and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRATM scheduled races, the track owner may elect to utilize a hand-out 4. Hinged Movements: Other than a drop arm, all motor system, using one of the approved hinged movements must be oriented in only one motors. This will be announced well in advance direction on any individual chassis. and ample time will be allowed on the day of the 4a. A chassis may have transverse hinges race for the racer to obtain the motor and install (examples: Iso-fulcrum hinges and plumber it. If a race for this class is conducted using hinges) or it may have longitudinal hinges handout motors then the racer must use the (example: side pan hinges) but the chassis may motor(s) assigned to him/her. not have both types. 3. Exclusion Clause: Clear violation of the motor- 4b. The number of individual hinges is not tampering rule will result in permanent exclusion restricted. from future IRRATM events of any kind. 4c. Centerline hinges are not allowed.

GTC Rules – effective January 1, 2014 – © IRRATM 3a. Racers will be required to sign a tech sheet not visible through the paint or other covering giving permission for the Race Director, at his under normal lighting. discretion, to tear their motors down for 2d. No part of the chassis may be seen when inspection to prove legality. looking down on the car from above. Legal 3b. If a motor is deemed illegal due to openings, such as air vents, etc., may be cut unapproved modifications (including, but not out. limited to, incorrect armature, bushing 2e. There should be a minimum 1/16” (1.59mm) alterations, magnet shimming, magnet change, vertical component and/or part of the grill along timed brush hoods, etc.), the racer will be the front edge of the body unless this element disqualified from the event and future events was not on the original car (example: Ti22). until reinstated by IRRATM officials. 2f. Area of body behind rear wheel wells must 3c. Non-refurbishable motors found legal will be not project below the center of rear axle. replaced at no cost to the racer. 3. Spoilers and Air Control: A single, flat plastic 4. A motor may not be changed after tech spoiler set at any angle may be added to the inspection or during a race except as follows: rear of the body only. 4a. For those races where there is a move-up 3a. The spoiler’s length is limited to a maximum from one main to another, motors can be of 1/2” (12.7mm) from the rear edge of the body changed and the car will go through a full tech and must be no wider than the outer edges of inspection. the body. 4b. Should a racer's hand-out motor fail during 3b. No additional bends are allowed except for the qualifying run or the warm-up, the racer will the one used to set the initial angle. be given the opportunity to change to another 3c. No side dams of any type are allowed. hand-out motor without penalty, if a second hand-out motor purchased by the racer is 3d. Front diaplanes are not allowed. available. 3e. High-mounted wings are allowed if used on the original full-size car. Such wings must be E. Body securely attached to the body and/or chassis. 1. All approved GT-Coupe bodies are listed in the 3f. No notches can be cut in the spoiler above “Approved Body Lists” section. All bodies must the bend line. be representative of pre-1970 cars. Here is an illustration. The .500" shown is the 1a. Bodies may not be any less than .007” thick maximum allowed height of the spoiler from the on the sides. Any body found to be flimsy or a edge of the body. This is where the bend line in detriment to marshaling will need to be corrected the spoiler is positioned. 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 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 carry a painted (at full-size car ran with closed wheel arches. least two colors), fully-molded three-dimensional interior comprising a driver (helmet, shoulders, 2c. Bodies must be presentably-painted and and arms), a steering wheel, and cockpit carry at least three racing numbers. To further representation. clarify this regulation, all bodies must be fully opaque on all sides except for those areas 4a. Interiors must be presentably painted and deemed to be windows. Windows may be tinted. realistically detailed. No paper interiors. 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.

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 • Tire Diameter, F & R = .8125” maximum mounting face of the bracket must meet this • Front Tire Width = .375” minimum clearance. • Rear Tire Width = .810” maximum 9b. Clearance will be measured with front and 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 1. Wheelbase: 4.50” (114.3mm) minimum. guide being supported. 2. Guide Lead: Maximum of .750” (19.05mm) 11. Axles, Front & Rear: 3/32” (2.38mm) minimum measured from the center of the front axle or diameter, one-piece, solid steel. 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.

Stock Car Rules – effective January 1, 2014 – © IRRATM 15. Drive Gears: Any drive gear and ratio may be 21c. Front tires may be coated with used. Crown gears must be commercially cyanoacrylate adhesive (“Super Glue”) or nail available and the only modifications allowed polish. (other than making your own sleeve) are 21d. Tires may be cleaned during the race, in sanding of the diameter of the gear and between heats, and during lane changes. heating/burning it in for a smoother gear mesh. Racers and their pit crews may only clean tires Disallowed modifications would include, but are using the supplied cleaner (lighter fluid/naphtha) not limited to, lightening, drilling, reversing the provided by the hosting raceway/race gear on the hub, repositioning the set screw director/series director. The approved cleaner hole, changing or reconfiguring the hub, and/or and supplied rag(s) that will be placed in a any other changes to the gear's size or designated area prior to the race and tires must appearance as compared to the stock be cleaned in that designated area only. production gear. Any racer transferring tire cleaner to the track 16. Maximum Front Axle Play: 0.125” (3.18mm), surface will be disqualified. as part of the maximum front track width. At no Tire treatments such as Zip Grip, Sticky Fingers, time can tires extend out past the body. or any other tire treatment may only be applied 17. Minimum Body Height: Body may not be before the car is teched-in. No treatments will be trimmed above the lower door lines. allowed at any time after tech. The rear tires 17a. Severe raking of the body for aerodynamic must be dry when the car is presented at tech. effect is not allowed. Any racer or pit crew found applying tire 18. All chassis parts must be covered by the treatments after tech, or cleaning tires with unmodified body. anything other than the supplied cleaner and 19. The wheels shall be located in relation to the rags, will result in racer disqualification. wheel arches in the body. C. Chassis 20. 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 20a. Speed Rubber is prohibited. is allowed. 20b. 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 20c. For those races where there is a move-up components of chassis kits (i.e. these from one main to another, tires can be changed techniques may not be used in the private and the car will go through a full tech inspection. manufacture of one-off components). Materials 20d. 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 21. 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". 21a. 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 3c. The axle tube does not need to pass through these rules are observed). the motor bracket. 21b. 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 3e. Floating pin tubes inside another tube are acceptable. Tires made from, or coated with, allowed. silicone, urethane, or other similar compounds, may not be used. Stock Car Rules – effective January 1, 2014 – © IRRATM 3f. Pieces of steel used for guide tongues are movements are allowed (i.e. no “L” arms). Front limited to a maximum 1” (25.4mm) total width wheels may rotate independently. and 1.50” (38.1mm) total length. Steel tongues 6. Guide: A single guide flag is allowed, centered cut from the flexi and wing car chassis are not on the longitudinal axis of the chassis (i.e. no considered "commercial guide tongues" and are sideways “free float” or offset) and with a blade no longer allowed. All legal steel tongues must no larger than .086” (2.20mm) wide x 1.060” be purpose-built as steel tongues and meet all (27.18mm) long. IRRATM measurement specifications. 7. Tape/Lead: Lead weight may be added to a 3g. The joining of brass sheet, plate, or strip chassis but may only be affixed to the top side of parts via tab and slot or "keyed" construction is the chassis. Strapping or other tape to control or not permitted. restrict movements is allowed but may only be 3h. Main chassis rails constructed of round steel affixed to the top side of the chassis. or brass wire maybe ground or sanded flat on Taping a damaged body to a pan to finish a heat the bottom, but no more than 20% of the is now permitted. The body must be repaired, rail diameter may be removed. and the tape removed, before the start of the 3i. Wire or tubing rails must connect the front next heat of racing. Otherwise, the prohibition and rear sections of the chassis. Using metal against the use of tape of any kind on the strip for this purpose is not permitted. A rail is bottom of the chassis remains in place. defined as that which connects the motor 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 • Topline or JK Falcon 7 parts below the plane defined by the front and • JK Retro Hawk FK rear clearance specifications. This will be • Pro Slot Euro Mk 1 4002, sealed, with checked by applying a straight edge to the Chinese arm. May be refurbished by an underside of the car both across the frame and approved IRRATM Service Center along the length of the frame. • TSR D3 • Slick 7 Mini Brute Note: No other motors will be allowed unless approved by the IRRATM and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRATM 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 4. Hinged Movements: Other than a drop arm, all race for the racer to obtain the motor and install hinged movements must be oriented in only one it. If a race for this class is conducted using direction on any individual chassis. hand-out motors then the racer must use the 4a. A chassis may have transverse hinges motor(s) assigned to him/her. (examples: Iso-fulcrum hinges and plumber 3. Note: No other motors will be allowed unless hinges) or it may have longitudinal hinges approved by the IRRATM and added to the (example: side pan hinges) but the chassis may approved motor list. not have both types. 4. Exclusion Clause: Clear violation of the motor- 4b. The number of individual hinges is not tampering rule will result in permanent exclusion restricted. from future IRRATM events of any kind. 4c. Centerline hinges are not allowed. 4a. Racers will be required to sign a tech sheet 5. Front axle: A single straight, 3/32” (2.38mm) giving permission for the Race Director, at his minimum diameter, one-piece front axle is discretion, to tear their motors down for required, carrying both front wheels. The axle inspection to prove legality. may be fixed or in a tube. No hinged front wheel 4b. If a motor is deemed illegal due to unapproved modifications (including, but not

Stock Car Rules – effective January 1, 2014 – © IRRATM limited to, incorrect armature, bushing tape, or other suitable material such that a finger alterations, magnet shimming, magnet change, is not visible through the paint or other covering timed brush hoods, etc.), the racer will be under normal lighting. disqualified from the event and future events TM 2h. Windows may not be cut out. Windows may until reinstated by IRRA officials. be tinted. 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 carry a painted (at inspection or during a race except as follows: least two colors), fully-molded three-dimensional 5a. For those races where there is a move-up interior comprising a driver (helmet, shoulders, from one main to another, motors can be roll bar, and arms), a steering wheel, and cockpit changed and the car will go through a full tech representation. inspection. 4a.Interiors must be presentably painted and 5b. Should a racer's hand-out motor fail during realistically detailed the qualifying run or the warm-up, the racer will 4b. No paper interiors. be given the opportunity to change to another hand-out motor without penalty, if a second hand-out motor purchased by the racer is 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, Stock Car Rules – effective January 1, 2014 – © IRRATM

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 Grill = .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 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 9. 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), 10. Minimum Weight: 100 grams ready to race. measured at the front and rear wheel arches. 11. Drive Type: Anglewinder. 3. Maximum Rear Tire Width: 0.810” (20.57mm). 12. 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. 13. 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, 2014 – © IRRATM 14. Maximum Rear Body Height: 1.375” Any racer transferring tire cleaner to the track (34.93mm) measured with the car on all four surface will be disqualified. wheels on a tech block (unsupported by the Tire treatments such as Zip Grip, Sticky Fingers, guide flag), from the tech block surface to the or any other tire treatment may only be applied top of the highest point of the rear of the body, before the car is teched-in. No treatments will be excluding any add-on spoiler. allowed at any time after tech. The rear tires 15a. Severe raking of the body for aerodynamic must be dry when the car is presented at tech. effect is not allowed. Any racer or pit crew found applying tire 15. 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 16. The wheels shall be located in relation to the rags, will result in racer disqualification. wheel arches in the body. C. Chassis 17. 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: Should a racer encounter a damaged tire/wheel 2a. Brass: sheet, rod, and tube; Bronze: rod are (stripped screw, bent hub, or chunked tire), the allowed. Pans, if used, must be brass. racer will be afforded the opportunity to make the repair under the green and present the car to 2b. Steel: Wire, rod, and tube are allowed. Steel the tech inspector at the end of the heat for sheet is allowed for guide tongues only. checking before the racer will be allowed to 2c. The use of spring steel is not allowed continue. 2d. Steel commercial guide tongues are allowed 18c. For those races where there is a move-up and are limited to a maximum 1” (25.4mm) total from one main to another, tires can be changed width and 1.50” (38.1mm) total length. and the car will go through a full tech inspection. 2e. No other materials are allowed. 18d. Those racers making a move-up from one 2f. Chassis parts, such as pans, brackets, guide main to another and not choosing to change tongues, etc., that are made using EDM, laser, tires will still be subject to tech inspection for or water-cutting techniques are allowed only if legal tire diameter and chassis clearance. they are individual commercially-available 18. Tires – Front: Must be made of two pieces, i.e. components or components of chassis kits (i.e. a wheel and a tire. these techniques may not be used in the private 19a. Front wheels may be made of any material manufacture of one-off components). and can have any size hub (as long as the front 2g. Each car must have a brass rear axle tube wheel and tire dimensions listed elsewhere in that can be notched to clear the motor. these rules are observed). 2h. No “pillow block” (bearing holders made 19b. Front tires must be glued to the wheels and where only a piece of brass or steel holds the be made of black rubber; only SBR, Wonder, bearing place) type rear ends allowed. and natural rubber type materials are 2i. Motors may be mounted with or without a acceptable. Tires made from, or coated with, bracket. If a bracket is used, it must be made of silicone, urethane, or other similar compounds, brass. may not be used. 2j. The motor can or endbell cannot be notched 19c. Front tires may be coated with or cut. cyanoacrylate adhesive (“Super Glue”) or nail 2k. Pre-made steel motor to axle braces are not polish. allowed. 19d. Tires may be cleaned during the race, in 2l. Floating pin tubes inside another tube are between heats, and during lane changes. allowed. Racers and their pit crews may only clean tires using the supplied cleaner (lighter fluid/naphtha) 2m. Pieces of steel used for guide tongues are provided by the hosting raceway/race limited to a maximum 1” (25.4mm) total width director/series director. The approved cleaner and 1.50” (38.1mm) total length. Steel tongues and supplied rag(s) that will be placed in a cut from the flexi and wing car chassis are not designated area prior to the race and tires must considered "commercial guide tongues" and are be cleaned in that designated area only. no longer allowed. All legal steel tongues must Retro Anglewinder Rules – effective January 1, 2014 – © IRRATM be purpose built as steel tongues and meet all Taping a damaged body to a pan to finish a heat IRRATM measurement specifications. is now permitted. The body must be repaired, 2n.The joining of brass sheet, plate, or strip and the tape removed, before the start of the parts via tab and slot or "keyed" construction is next heat of racing. Otherwise, the prohibition not permitted. against the use of tape of any kind on the bottom of the chassis remains in place. 2o. Main chassis rails constructed of round steel or brass wire maybe ground or sanded flat on D. Motor the bottom, but no more than 20% of the 1. Motor types: May use any one of the following rail diameter may be removed. motors, which must remain unopened and 2p. Wire or tubing rails must connect the front unmodified. and rear sections of the chassis. Using metal Topline or JK Falcon 7 strip for this purpose is not permitted. A rail is • defined as that which connects the motor • JK Hawk Retro FK bracket to the front of the chassis. • Pro Slot Euro Mk 1 4002, Sealed with Chinese arm. May be refurbished by an 2q. The bottom surface of the whole chassis IRRATM Service Center (including the motor, but excluding the motor seal and guide flag) must be flat and straight in • Pro Slot Euro Mk 1 4002B and 4002B- all directions, with no bowing or drooping of any B, sealed, with American arm, with regular bushing or ball bearing in can. parts below the plane defined by the front and TM rear clearance specifications. This will be May be refurbished by an IRRA checked by applying a straight edge to the 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 IRRATM and added to the approved motor list. Please refer to the Motor Rules for more information on motors. 2. At designated large IRRATM 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 3. Hinged Movements: Hinges are it. If a race for this class is conducted using unrestricted/unlimited. handout motors then the racer must use the 3a.The number of individual hinges is not motor(s) assigned to him/her. restricted. 3. Exclusion Clause: Clear violation of the motor- 3b. Centerline hinges are not allowed. tampering rule will result in permanent exclusion from future IRRATM events of any kind. 4. Front axle: A single straight, 3/32” (2.38mm) minimum diameter, one-piece front axle is 3a. Racers will be required to sign a tech sheet required, carrying both front wheels. The axle giving permission for the Race Director, at his may be fixed or in a tube. No hinged front wheel discretion, to tear their motors down for movements are allowed (i.e. no “L” arms). Front inspection to prove legality. wheels may rotate independently. 3b. If a motor is deemed illegal due to 5. Guide: A single guide flag is allowed, centered unapproved modifications (including, but not on the longitudinal axis of the chassis (i.e. no limited to, incorrect armature, bushing sideways “free float” or offset) and with a blade alterations, magnet shimming, magnet change, no larger than .086” (2.20mm) wide x 1.060” timed brush hoods, etc.), the racer will be (27.18mm) long. disqualified from the event and future events until reinstated by IRRATM officials. 6. Tape/Lead: Lead weight may be added to a chassis but may only be affixed to the top side of 3c. If the motor is legal and can be refurbished, TM the chassis. Strapping or other tape to control or it will be sent to an approved IRRA restrict movements is allowed but may only be refurbishing program at no cost to the racer. affixed to the top side of the chassis. Non-refurbishable motors found legal will be replaced at no cost to the racer.

Retro Anglewinder Rules – effective January 1, 2014 – © IRRATM 3d. Racers wishing to have their motor 2e. There should be a minimum 1/16” (1.59mm) refurbished for continued use can participate in vertical component and/or part of the grill along the IRRATM Motor Refurbishing Program. the front edge of the body unless this element 4. A motor may not be changed after tech was not on the original car (example: Ti22). inspection or during a race except as follows: 2f. Area of body behind rear wheel wells must 4a. For those races where there is a move-up not project below the center of rear axle. from one main to another, motors can be 3. Spoilers and Air Control: A single, flat plastic changed and the car will go through a full tech spoiler set at any angle may be added to the inspection. rear of the body only. 4b. Should a racer's hand-out motor fail during 3a. The spoiler’s length is limited to a maximum the qualifying run or the warm-up, the racer will of 1/2” (12.7mm) from the rear edge of the body be given the opportunity to change to another and must be no wider than the outer edges of hand-out motor without penalty, if a second the body. hand-out motor purchased by the racer is 3b. No additional bends are allowed except for available. the one used to set the initial angle. E. Body 3c. No side dams of any type are allowed. 1. This class can have either the approved Can- 3d. Front diaplanes are not allowed. Am bodies used or the GT Coupe bodies used 3e. High-mounted wings are allowed if they are as determined prior to a scheduled race and used on the original full-size car. Such wings announced in advance. The two types of bodies must be securely attached to the body and/or are not allowed in the same race. chassis. All approved Can-Am and GT Coupe bodies are 3f. No notches can be cut in the spoiler above listed in the “Approved Body Lists” section. All the bend line. bodies must be representative of pre-1970 cars. Here is an illustration. The .500" shown is the 1a. Bodies may not be any less than .007” thick maximum allowed height of the spoiler from the on the sides. Any body found to be flimsy or a edge of the body. This is where the bend line in detriment to marshaling will need to be corrected the spoiler is positioned. 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 wheel arches may be left closed if the original full-size car ran with closed wheel arches. 4. Cockpit: All bodies must carry a painted (at 2c. Bodies must be presentably-painted and least two colors), fully-molded three-dimensional carry at least three racing numbers. To further interior comprising a driver (helmet, shoulders, clarify this regulation, all bodies must be fully and arms), a steering wheel, and cockpit opaque on all sides except for those areas representation. deemed to be windows. Windows may be tinted. 4a.Interiors must be presentably painted and The term opaque means covered by paint, tape, realistically detailed. No paper interiors. or other suitable material such that a finger is 4c. If a Can-Am body does not have a molded-in not visible through the paint or other covering driver, then the body must be totally cut out so under normal lighting. the interior is in full view. 2d. No part of the chassis may be seen when 4d. Bodies with molded in interiors must still looking down on the car from above. Legal have something to cover the view of the frame openings, such as air vents, etc., may be cut through the window. out.