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Club Racing Board Contents EFFECTIVE FIRST DAY OF THE MONTH UNLESS OTHERWISE NOTED November 2011 CLUB RACING BOARD CONTENTS CLUB RACING BOARD MINUTES | October 4, 2011 BOARD OF DIRECTORS NONE CLUB RACING 1 The Club Racing Board met by teleconference on October 4, 2011. Participating were CRB Minutes 1 Bob Dowie, Chairman; Chris Albin, Fred Clark, Jim Drago, Dave Gomberg, Tom Start, Technical Bulletin 6 and Jim Wheeler. Also participating were Marcus Meredith and Richard Patulo, BoD Court of Appeals 9 liaisons; Terry Ozment, Vice President of Club Racing; Doug Gill, General Manager, Time Trials Admin. Council NONE Technical Services Department; John Bauer, Technical Services Manager Club Racing; Ryan Miles, Technical Coordinator Club Racing; Brian Harmer, Solo Technical SOLO 16 Specialist. In addition to those items covered in Technical Bulletin 11-10, the following SEB Minutes 16 decisions were made: RALLYCROSS 29 RXB Minutes 29 SUGGESTED RULES FOR NEXT YEAR Court of Appeals 32 The following subjects will be referred to the Board of Directors for approval. Address ROAD RALLY 33 all comments, both for and against, to the Club Racing Board. It is the BoD’s policy to RRB Minutes 33 withhold voting on a rules change until there has been input from the membership on QUICK LINKS 35 the presented rules. Member input is suggested and encouraged. Please send your comments via the form at http://www.crbscca.com/ IMPROVED TOURING 1. #3749 (David Ellis-Brown) Rules Clarification - switch relocation In 9.1.3.D.9.c, add the following at the end: “Switches to activate the ignition, the lights, the windshield wipers, the starter and other accessories located within the passenger compartment may be replaced and their location changed.” 2. (multiple) Allowance of aftermarket motor and transmission mounts in IT In 9.1.3.D.1, add a new subsection s as follows: “To allow commonly available engine mount aftermarket inserts, replacement units, or “window weld” like solutions without allowing solid metal or rigid materials or bearings that could result in the driveline becoming a stressed member of the chassis, the following is permitted. Engine, transmission, differential or any other driveline mounts may be replaced. Mounts may use only stock mounting points, must maintain stock location and orientation of the mounted component, and must be non-rigid.Rubber or other inserts in stock mounts may be replaced with any other non-metallic material.” In 9.1.3.D.2, add a new subsection e as follows: “Alternate mounts are permitted as in 9.1.3.D.1.s.” SUPER TOURING 1. #5675/#6057 (Shandelle Leonard/Christopher Childs) Engine swap manifolds In 9.1.4.G.1, add the following: “If needed to allow the intake manifold fit on the engine, an adapter plate between the engine and manifold is permitted. This adapter plate must be no more than 1.0 inch thick and must be made of the same material as either the head or intake manifold.” 2. #6218 (Greg Amy) Allow APR GTC-500 rear wing Add a new subsection 9.1.4.1.B.2.f as follows: “APR performance wing GTC-500 part #AS-1070xx, variable cord length 12.75” Inner/9” Outer), is permitted.” AMERICAN SEDAN 1. #6011 (Ted Johnson) Alternate transmission After discussions with Auto Gear about their “Syracuse” Muncie-based transmission it has been determined that it would potentially improve reliability for those AS competitors who wish to run a transmission with synchros. The gear ratios of this transmission meet the “CC” ratio requirements for AS T-10 transmissions (+ or - .05) except for 1st gear (2.88 - T-10 vs. 2.556 - Muncie). To accommodate this transmission, the following rule change will be requested: Modify 9.1.6.D.3.c as follows: “No alteration to the stock transmission gear ratios is allowed, except that any first gear ratio greater than 2.5 is permitted for non-Limited Prep cars.” SCCA FasTrack News November 2011 Page 1 SPEC MIATA 1. #5302 (CRB) Overbore allowance In 9.1.8.C.1.b, make the following changes: b. Block 1. The engine block may be decked/milled to achieve the factory specified compression ratio for the correct model year as listed. Honing of cylinders is permitted to a maximum standard diameter as shown in the following table: Model Year Maximum Standard Diameter (inches) 90-93 3.076 94-05 3.273 2. Cast iron cylinder liners (sleeves) may be installed to restore damaged or worn cylinder bores to the original dimension. Re-boring to over size is prohibited. as previously permitted may be used in both Regional and National racing through the 2012 season and may not be used at the 2012 runoffs or beyond. Regions may continue to allow sleeved blocks via supplemental regulations. 3. The cylinders may be bored .010” over to a maximum overbore diameter shown in the following table: Model Year Maximum Overbore Diameter (inches) 90-93 3.086 94-05 3.283 4. If one or more cylinders is overbored or exceeds the maximum standard diameter specified in paragraph 1, the vehicle shall meet the “minimum weight with overbored motor” specified in the vehicle specifications. In 9.1.8.C.1.e, make the following changes: e. Pistons 1. Mazda OEM standard size pistons must be used. Minimum weights less wrist pin and hardware and minimum weights of wrist pins are shown in the following table: Model Year Part Number Minimum Weight (w/o wrist pin Minimum Weight Wrist Pin and hardware (grams)) (grams) 9 0 - 9 3 B6Z2-11-SA0C 271.5 86.0 (standard) 90-93 B6Z2-11-SB0C TBD TBD (.010” over) 94-97 BPY1-11-SA0A 291.5 86.0 (standard) 94-97 BPY1-11-SB0A TBD TBD (.010” over) 99-00 BPZ0-11-SA0 288.0 78.0 (standard) 99-00 BPZ0-11-SB0 TBD TBD (.010” over) 01-05 BPZ3-11-SA0 288.0 78.0 (standard) 01-05 BPZ3-11-SB0 TBD TBD (.010” over) 2. The use of oversize pistons is not permitted. No modification of the piston is permitted. Modification of the piston ring end gap width is allowed. SCCA FasTrack News November 2011 Page 2 Modify the specification table as follows: Bore x Valves Restrictor Comp. Wheelbase Gear Final Brakes Weight Notes Stroke(mm) IN & EX Size (mm) Ratio (mm) Ratios Drive (mm) (lbs) SM / Displ. (cc) (mm) Mazda 78.0 x 83.6 31.1 (I) N/A 9.4 2266 3.14, 4.3 (F) 235 Vented Disc 2275 MX-5 / Miata 1597 26.3 (E) 1.89, (R) 232 Solid Disc or (90-93) OR Alternate 1.33, 2290 With Alternate 78.25 x 83.6 1.00, Bore 0.81 Mazda 83.0 x 85.0 33.1 (I) 47mm 9.0 2266 3.14, 4.3 (F) 255 Vented Disc 2365 Must update MX-5 / Miata 1839 28.2 (E) 1.89, See (R) 252 Solid Disc or to the 4.30:1 (94-97) OR Alternate 1.33, Notes 2380 With Alternate rear axle ratio 83.25 x 85.0 1.00, Bore as found in the 0.81 99+ cars. Mazda 83.0 x 85.0 33.1 (I) 41mm 9.5 2266 3.14, 4.3 (F) 255 Vented Disc 2450 Maximum L MX-5 / Miata 1839 28.2 (E) 1.89, (R) 252 Solid Disc or dimension of (99-00) OR Alternate 1.33, 2465 With Alternate 1.815” is 83.25 x 85.0 1.00, Bore permitted. 0.81 Mazda 83.0 x 85.0 33.1 (I) 43mm 10.0 2266 3.14, 4.3 (F) 255 Vented Disc 2450 MX-5 / Miata 1839 28.2 (E) 1.89, (R) 252 Solid Disc or (01-05) OR Alternate 1.33, 2465 With Alternate 83.25 x 85.0 1.00, Bore 0.81 CAR RECLASSIFICATIONS 1. #4840 (Chris Dryden) Please classify the 2006 MX-5 in ITS In 9.1.3, ITR, Mazda MX-5 (2006), reclassify from ITR to ITS at 2740 lbs. 2. #6081 (R. Inness Eisele) Classify 1991 BMW 318i/iS in F Production In 9.1.5, EP, BMW 318i/is E36 (92-95), reclassify from EP to FP at 2400/*2460/**2520. WHAT DO YOU THINK? ITB/ITC Should the 75-95 Volvo 240 family be classified in ITC at 2520 lbs. for the 2.1 liter engine and 2685 lbs. for the 2.3 liter engine OR should they be classified in ITB at 2275 lbs. for the 2.1 liter engine and 2425 lbs. for the 2.3 liter engine? MEMBER ADVISORIES SSC B SPEC STATEMENT The CRB hereby informs the membership that the specifications for the “B Spec” cars, as described in 9.1.7.E.34, are a work in progress. Although we hope to stabilize these rules as quickly as possible, ongoing interactions with manufacturers and input from members may cause some parts of the rule set to change over the next several months. NOT APPROVED BY THE CRB GRAND TOURING GTL 1. #6012 (Brian Linn) remove 50lbs weight penalty for RWD Mini - all The FWD to RWD weight penalty is still considered to be appropriate when reviewing the original reasoning (engine performance modifications are available in RWD configuration that are not available in FWD). IMPROVED TOURING 1. (multiple) Allow power steering racks to be looped There is not sufficient member support for making a power steering removal allowance at this time. We would like to thank all the members who contributed their input on this matter. 2. #4885 (Earl Richards) Allow all IT classed cars to use OEM wheels Allowing the wheel width to be larger than currently permitted would change the performance parameters of the individual classes.
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