Recommended Rules Changes (October 2015)
Contents
1. 2 16270 March Fastrack Club Racing Board P2 Engine Rule Update In section 9 1 8 D L change the language as follows L ENGINE All engines will be fitted with a specified type of inlet restrictor as determined by the SCCA For engines not listed in the P2 Engine Table competitors seeking approval shall be responsible for submitting engine dyno and performance data to the SCCA The SCCA may at its option gather request additional data SPORTS CAR CLUB OF AMERICA INC 13 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com a Stock Engine Preparation allowances Any modifications or adjustments not specifically listed are not allowed on stock engines 1 Internal dimensions and materials of the engine shall be stock Fasteners such as rod bolts are free 2 Bolt on covers and ports external to the engine may be modified or replaced 3 Camshaft timing may be adjusted but the camshafts must remain stock Timing gears and cam drive tensioning mechanisms may be modified or substituted as long as they serve no other purpose Oil systems are free Cooling systems are free Turbo charging and supercharging are prohibited Exhaust system is free EGR and or air pumps may be removed or disabled ON Oa FF Inlet System Any manifold s and single or individual throttle body s incorporating a butterfly throttle actuation may be used for fuel injected engines Any manifold2. A Recommended Rules Changes october 2015 gt Sports Car Club of America Recommended Items for 2016 The following is a summary of proposed rule changes made by the Club Racing Board These items will be presented to the Board of Directors for approval Comments both for and against should be sent to the Club Racing Board via http www crbscca com or www clubracingboard com If approved these rule changes will become effective 1 1 2016 unless indicated otherwise The letter number Fastrack month author and title precedes each proposed rule American Sedan None B Spec B Spec 1 16450 September Fastrack Kyle Keenan Allow Braided Stainless Steel Clutch Lines Thank you for your request Change 9 1 10 E 33 33 Original brake and clutch hoses may be replaced by braided stainless steel brake lines and clutch lines Formula Sports Racer FF 1 17493 September Fastrack Club Racing Board Spec Tires for 2016 Change 9 1 1 B 10 10 Wheels and Tires Wheels are unrestricted except that a Material must be metal b Diameter shall be thirteen 13 inches c Rim width Formula F shall not exceed 5 5 inches Formula Continental shall not exceed 6 0 inches front and 8 0 inches rear d All measurements shall be taken between the beads e Formula F shall be limited to the following tires front tires may not be used as rears Dries Front Hoosier Radial 43322 185 60R13 Rear Hoosier Radial 43327
3. are prohibited unless authorized in the Supplemental Regulations The CRB recommends that the Board of Directors approve these changes to be effective 6 1 2015 Recommended Items for 2016 The following subjects were approved by the Board of Directors in their May 2015 meeting These items will be effective 1 1 2016 Improved Touring IT 1 15424 April Fastrack Earl Richards Clarify IT Rule on Heater Component Removal Thank you for your letter Change 9 1 3 D e e Aireenditioning Climate control systems may be removed in whole or in part Change 9 1 3 D 3 g g Engine coolant fluid coolant heater hoses and clamps may be substituted Heater hoses may be plugged or bypassed looped or removed Heater water control valve s may be added or substituted Heater core shall netmay be removed Spec Miata SM SPORTS CAR CLUB OF AMERICA INC 18 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 e Sports Car Club of America 1 16475 Aril Fastrack Ralph Provitz Minimum Cylinder Head Thickness Thank you for your suggestion Change the values in the table for 9 1 7 C 1 f 1 5 245 5 235 inches 2 16783 May Fastrack Club Racing Board Update to 9 1 7 C 1 a 1 f 5 Replace the entirety of 9 1 7 C 1 a f 5 Current 5 id de Paden E R a A Taat edge must be NQ la AmMmoed g a Q aFa o pe Hendqedq Nhan hined a 5 ch
4. 12 15 effective 1 1 16 Thank you for your letter The CRB supports the following changes to the SRF and SRF3 tire rules for the 2016 racing year Change 9 1 8 E X f f Tires Dry Goodyear Eagle Spec Racer Ford size 22 X F X13 Medel 02525 of D2554 Aat a Tn BD Dry Front Hoosier P N 46340 P185 60ZR13 Rear Hoosier P N 46350 P205 60ZR13 SRF Wet Front Hoosier P N 46100 P185 60R13 H20 Rear Hoosier P N 46105 205 60R13 H20 2075 tires allowed for Non Majors events until 6 1 2016 Dry Goodyear Eagle Spec Racer Ford size 22 X7 X13 Model D2525 or D2554 Wet Goodyear Eagle Spec Racer Ford size 22 X7X13 Model D2626 2 17630 October Fastrack Erik Skirmants SRF3 Mandatory and Optional Low dB Muffler The CRB recommends allowing an optional muffler kit for the GEN3 SRF3 cars to help them meet required sound limits Change 9 1 8 E 2 J EXHAUST Exhaust may be plated or coated Repairs may not alter the configuration or tuned length of the header or tail pipe SPORTS CAR CLUB OF AMERICA INC 2 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 America 390523 is required for all events For tracks with stricter sound requirements Quiet Muffler Kit P N G1190524 is available as a replacement for that event GCR 1 16946 June Fastrack Club Racing Board Transmission Short
5. 2015 gt Sports Car Club of America Kent Cam CW14 Lift 430 duration 316 degrees with mechanical tappets allowed with a 38mm venturi restrictor 2 13719 February Fastrack Jay Ivey 2 0L YAC and 2 0L Pinto Bore Size Thank you for your letter In the P2 class the CRB recommends allowing the maximum bore size for the 2 0L YAC and 2 0L Pinto engines to be 040 over STD for a maximum bore size of 3 620 This allows for rebuilds and to extend the life of the engine blocks The CRB recommends that the Board of Directors approve this change to be effective 5 1 2015 In line E of the P2 engine table in the notes column add Maximum bore size of 3 620 allowed for Pinto In line G of the P2 engine table in the notes column add Maximum bore size of 3 620 allowed GCR 1 16221 February Fastrack Club Racing Board Recommended Portion of Letter 15269 Thank you for your request Change 6 5 2 C 1 1 A car that improves its position relative to the field during the pace lap by moving forward moving out of line by more than half a car width or passing before the green flag is displayed may be penalized for a false start If a false start has occurred and the race has been started the driver s may be black flagged and held in the pits or at the start line for up to 1 minute and other penalties may also be imposed as specified in Section 7 The CRB recommends the Board of Directors approve this rule change to be effective
6. 5 1 12015 2 16402 March Fastrack Club Racing Board Additional GCR changes Required By Letter 16221 Change 6 5 3 C 2 2 Well bunched andinine and Change 6 5 4 A A The Starter will abort the start by displaying no flag and shaking his head in the negative if the field is not in good order or if some drivers have improved their positions by moving out of line more than half a car width or by passing prior to the waving of the green flag This advises the drivers to proceed on another pace lap Drivers raise one hand to confirm that the start is aborted The CRB recommends the Board of Directors approve this rule change to be effective 5 1 2015 Recommended Items for 2015 The following subjects were approved by the Board of Directors in their February 2015 meeting These items will be effective 6 1 2015 SPORTS CAR CLUB OF AMERICA INC 10 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com P2 1 16220 March Fastrack David Arken P2 Spec Line Cars In section 9 1 8 A C 1 M change the language as follows M SPEC LINE CARS The intent of Table 1 Spec Line Cars is to accommodate existing cars previously homologated as DSR or CSR Radicals and similar series cars and not requiring require expensive changes to make them compliant with the P2 rules A car prepared in excess of the P2 allowances but raced prior to 2014 may continue to use non P2 compliant components net
7. 785 232 7214 www scca com A Recommended Rules Changes october 2015 gt Sports Car Club of America stepped or curved Undertray may be angled in side view to produce a maximum height at the trailing edge of 3 25 inches above the ground Improved Touring 1 16164 September Fastrack Matt Miskoe Addition of Jack Points to Improved Touring Cars Thank you for your request Add 9 1 3 D 8 l A maximum of two 2 jacking points may be reinforced The reinforcement may be no larger than 12x6x6 inches and may not serve any additional purpose Any added material must fit within the minimum ride height ITC 1 17137 September Will Perry 1984 1987 Honda CRX Plastic Body Panels Thank you for your request Change 9 1 3 D 8 i i Body repair shall be performed using every reasonable effort to maintain stock body contours lips etc Any body repair modification having as its purpose increased clearance is prohibited tn these cireumstances where sStock trim molding pieces are unavattable threugh_alt nermat replacement channels proof of such unavailability shall be provided by the competiter may be replaced with parts of alternate material provided they have the same dimensions as stock Production None Spec Miata SM 1 16474 September Fastrack Ralph Provitz Driver Seating Position Thank you for your request Change 9 1 7 C 7 a a The driver s seat shall be replaced with a one piece bucket type race se
8. Mustang Coupe GT and Shelby GT 5 0 Maximum spring rate 500 Ibs front 300 Ibs rear 2 17389 October Fastrack CJ Moses Return T2 Spec Line for Dodge Viper SRT 10 Incl Coupe 03 06 Re Classify Dodge Viper SRT 10 incl coupe 03 06 Bore and Stroke 102 4 x 100 6 8300 Wheels 18x10 F 19x13 R Tires F 275 35 F 315 35 max R 345 30 Maximum camber F 3 0 w Dodge Motorsports T1 suspension package Gears 2 66 1 78 1 30 1 00 0 74 0 50 Final drive 3 07 Brakes F amp R 355 Disc Weight 3600 Notes Detachable Autoform hardtop shall be installed on convertible model latches shall be replaced with positive fasteners convertible top shall be removed Throttle restrictor between each throttle body and plenum is mandatory 060 flat steel plate with one 36 mm hole A 250 thick max steel or aluminum spacer is permitted between the throttle body and the restrictor to provide clearance for the throttle butterfly This spacer shall replicate the dimensions of the stock throttle body flange i e throttle bore bolt pattern idle air bypass port dimensions etc Throttle body spacer bore s shall be no larger than the stock throttle body bore diameter at the gasket surface and shall not be radiused in any way Throttle restrictor may include idle air control and or PCV orifice The following parts are allowed Mopar performance fan delete kit P5153260 Phoenix SRT10 electric fan kit PP1123321 Mopar swing oil pickup
9. 1 201 20B 2016 20 amended 20v14 12 17d1 pdf The CRB recommends that the Board of Directors approve this change effective 5 1 2015 ASR P1 and P2 1 15693 February Fastrack David Ferguson Opposed to Shock Rule Thank you for your letter Add 9 7 8 A 2 In an effort to control shock damper technology and cost to a level reasonable for Club Racing in ASR P1 P2 any fluid dampers are allowed with the following restrictions 7 Dampers must be manually adjustable only 2 Mechatronic valves G valves hybrid inerters inerters and mass dampers are prohibited 3 Electro Magnetic shock fluid is prohibited 4 Shocks may not be electronically interconnected however data acquisition is permissible as long as it serves no other purpose The CRB recommends that the Board of Directors approve this change effective 5 1 2015 P2 1 13718 February Fastrack Jay Ivey Camshaft for YAC Thank you for your letter The CRB recommends allowing the Kent Cam CW14 Lift 430 duration 316 degrees to be used in the YAC engines with mechanical tappets in the P2 class The YAC with this cam must use a 38mm venturi restrictor The CRB recommends that the Board of Directors approve this change effective 5 1 2015 In the P2 engine table line G in the Notes column add SPORTS CAR CLUB OF AMERICA INC 9 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october
10. 205 60R13 Wets Front Hoosier Radial 44421 185 60R13 Rear Hoosier Radial 44426 205 60R13 P2 1 17098 September Fastrack John Lisk Clarification of P2 Section J Para 4 and Section M SPORTS CAR CLUB OF AMERICA INC 1 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 Sports Car Club of America Thank you for your letter Assisted shifting as delivered from the factory on Radical Spec Line Cars Table 1 is compliant for 2015 Change 9 1 8 D J 4 4 Shift operation all gear changes must be initiated and completed by the driver Only mechanical gear shifting mechanisms are allowed This may include cables rods or other mechanical linkage systems Ass sted shifting of any kind is not allowed on any car including Table 1 Spec Line Cars Any other assisted shifting mechanisms are specifically not allowed This prohibition is intended to eliminate the use of electric solenoid shifters air shifters and other devices not mechanically actuated and controlled completely by the driver Devices that allow pre selected gear changes are also prohibited Existing cars converting to P2 for 2014 with assisted shifting mechanisms are permitted with a 50 Ib weight penalty but must remove the devices by September 1 2014 SRF3 1 17444 September Fastrack SCCA Enterprises 2016 SRF and SRF3 Tires NOTE This letter was formally approved by the BOD 8
11. 6712 May Fastrack Touring Committee Allow Aftermarket Wheels Pontiac Solstice In T4 change the Notes for the Pontiac Solstice 06 09 The following items must remain stock shock struts including mounts eriginalwheels and transmission differential unless specified below Detachable hardtop GM part PCS O664 shall be installed latches shall be replaced w positive fasteners convertible top shall be removed Limited slip differential G80 factory ABS JL and suspension option ZOK allowed Cold Air intake permitted SPORTS CAR CLUB OF AMERICA INC 20 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com
12. Shift Kit Change 9 3 49 and re number 9 3 49 through 9 3 55 to 9 3 50 to 9 3 56 9 3 49 TRANSMISSION SHORT SHIFT KITS Transmission short shift kits are allowed on all cars Add to Appendix F Technical Glossary Transmission Short Shift Kit A mechanical modification or replacement of a part or parts to modify the throw of the shifter It must not change the pattern from its original 2 16791 August Fastrack Jim Wheeler New Specialty Race Data Technician Add new section to 5 11 ADDITIONAL OFFICIALS and list the new section in the Table of Contents 5 11 5 Race Data Technicians Data Technicians are optional Officials whose duties include A Being responsible for placing operating and removing SCCA supplied data boxes on cars at all Club races B Analysis of data retrieved from all sources including dyno runs at race data boxes and data provided by individual racers C Prepare reports to the applicable Advisory Committees and to the CRB with recommendations for competition adjustments 3 16998 October Fastrack SCCA Staff Race Starter Finisher Points Clarification Change GCR sections 3 1 1 C 5 10 4 B 3 6 10 Title 6 10 2 6 10 3 Title 3 1 1 C Points are awarded to the top 20 finishers that have completed half of the laps of the overall race winner in each race as follows 25 21 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 5 10 4 B 3 The timing and scoring information shall incl
13. anges october 2015 15 of 20 A Recommended Rules Changes october 2015 o Sports Car Club of America Thank you for your request In the interest of opening competition as broadly as possible the CRB recommends lowering the minimum age for a competition license to 14 2 16110 March Fastrack Christopher Childs Blueprint Definition Thank you for your request Add a new section e to Appendix F under Blueprinting e Any edges resulting from authorized machining processes may be deburred up to 040 Recommended Items for 2016 The following subjects were approved by the Board of Directors in their February 2015 meeting These items will be effective 1 1 2016 GCR 1 15576 March Fastrack Terry Ozment Drones at Track The CRB endorses the recommendation and suggests the following language be appended to the GCR as new Section 1 5 7 5 Commercial and private unmanned aircraft systems aka drones are prohibited unless authorized in the Supplemental Regulations Touring T4 1 16287 March Fastrack Anthony Cuthbert Rear Sway Bar Upgrade for 500 Abarth Thank you for your request For the Fiat Abarth 500 add to the Notes in the specification line Front strut tower brace allowed Rear swaybar up to 25 mm allowed TABLED Item for 2016 The following subject was TABLED by the Board of Directors in their February 2015 meeting for review at SCCA GCR 1 14612 February Fastra
14. at All seat mountings shall be reinforced Factory seat tracks brackets may be modified reinforced and or removed to facilitate replacement mountings provided they perform no other function The passenger seat must be removed The transmission tunnel may be modified for the purpose of installing a competition driver seat The driver s side floor pan may be modified to accommodate l arger taller drivers All modifications Shall be contained between the transmission tunnel driver s side rocker rear bulkhead and no more than 24 forward of the rear bulkhead The modification shall not extend below the factory floor stiffener frame rail The steel used in the modification shall be no thinner than 060 All modifications shall be welded in place This modification shall serve no other purpose other than seating position 2 16519 September Fastrack Dave Wheeler Allow Auxiliary Fan Switch for Radiator Cooling Fan SPORTS CAR CLUB OF AMERICA INC 5 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com e Sports Car Club of America Thank you for your request Add section 9 1 7 C 1 0 8 8 Auxiliary control of the radiator cooling fan may be added to power the fan independent of the ECU OEM control of the fan must remain functional 3 16480 October Fastrack Kyle Webb Taping of Grill Change 9 1 7 C 1 0 2 and 5 2 Any radiator and mounting brackets may be used provided it is mounted in
15. ck Steve Harris Replacement for GCR 8 1 4 Compliance Review Thank you for your request The CRB recommends that the Board of Directors approve these changes to be effective 5 1 2015 Change 8 1 4 8 1 45 Protests Any entrant driver crew organizer or official participating in an event may protest any decision act or omission of another entrant driver crew organizer official or any other person connected with that event whose actions the protestor believes to be in error or which violate the GCR the Supplemental Regulations or any SPORTS CAR CLUB OF AMERICA INC 16 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 TE Sports Car Club of America condition involving SCCA s sanction of the event except where exemption from protest is specified elsewhere in the GCR or the event Supplementary Regulations Add new section 8 1 4 8 7 4 Compliance Review A member may request a determination on the compliance of their vehicle or its components to the current GCR through the Club Racing Department A Upon receiving a request the staff will review the request and will consult with the CRB and other appropriate resources to provide a response to the member B If Club Racing cannot make a determination the member will be directed to submit a letter through the crbscca com system C Club Racing will notify the CRB of the letter
16. emically aoed to createa ako ane en Fhe mavinuss dimencisne ce isted_bele wy measuring guide centertinete chamber edge UPDATE 5 20 2015 Due to member input the Club Racing Board recommends changes to this letter 040 changed to 010 on the bottom of the relief cut Drawing published on scca com 4 24 15 has been removed New drawing is attached New 5 Unshrouding of valves is explicitly limited as follows The wall of allowed relief cut must be a single cut parallel and concentric with the valve guide for the full depth of the cut The cut must be cylindrical with no taper The bottom of the cut must form a 90 degree angle with an allowance for a bevel or curve whose radius is not to exceed 010 There must be a sharp non modified and non de burred edge where the valve relief cut first meets the chamber No part of this cut except where it intersects the head gasket surface which may be de burred up to 040 is to be blended by hand machined or chemically processed to create a smooth transition See diagram below The maximum dimensions measuring guide center line to chamber edge SPORTS CAR CLUB OF AMERICA INC 19 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com Recommended Rules Changes october 2015 0 040 maximum deburr where the head gasket gt o 1 surface of the head meets the relief cut and the combustion chamber of the head Touring T4 1 1
17. kit 4510174 Trans mount P4510179 Dodge Motorsports T1 suspension kit part P5153251 Hypercoil springs 188A0750 F and 188A0800 R are allowed B amp M Shifter PN45055 is permitted Oil pan part 5037735AC oil pick up part 5038022AB oil pick up tube part 5037312AE are allowed T3 1 16493 September Fastrack David Mead Allow 99 04 Mustang GT Bullitt to Run Springs as Coilovers 99 04 Mustang GT Bullit Add to Notes SPORTS CAR CLUB OF AMERICA INC 8 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 gt Sports Car Club of America Steeda 555 2002 rear control arms are allowed Max spring rate of 900 Ibs in allowed front and rear Springs may be mounted as a coil over configuration Steeda front sway bar 555 1094 allowed Energy suspension 4 3140G control arm bushings permitted KEKE KKEKKEKEKEKEKR KEKE KKK KEKE HER KRKRKEKRKEK KEK KRK KEKE KK KKEKR KHER KKK KEKHEKKEKKKKKHKHE Recommended Items for 2015 The following subjects were approved by the Board of Directors in their February 2015 meeting These items will be effective 5 1 2015 FC 1 15933 February Fastrack Formula Sports Racing Committee Zetec engine Thank you for your letter The CRB recommends specification updates and allowances for rebuilds for the Zetec engine in FC These changes are available at http scca cdn racersites com prod assets gcr 209 20
18. listed in the spec lines e g wings ret listed in the spec line butfurther development te spectne columnste g Wheelbase Track and Notes must be compliant with the P2 rules For individual cars included in any of the spec lines in Table 1 any deviation from spec line and column requirements further development e g Wheelbase Track requires the car to be made compliant to all current P2 requirements with a notation in the front of the logbook noting the requirement for the car to be compliant with all P2 rules For example should the spec line allow a different minimum width and the car were to be changed to meet the P2 minimum width then the minimum weight would also have to be increased along with any other non compliant components to make the car fully P2 compliant In P2 Table 1 spec line cars change the spec lines as follows Table 1 Spec Line Cars Marque Wheelbase Weight Engine Restrictor Notes inches max Displacement Track Max inches AMAC 94 54 Stock Engine P2 Engine 37mm Minimum width Asteck 950lb Table B 1 55 inches Cheetah 1005cc max P2 Engine Not required Mustmeet Decker Fox Table B 2 underbody LeGrand P2 Engine 39mm aerodynamic Table B 3 requirements tA Modified P2 Engine 38mm sectione Engine Table B 1 Must meet all 1025lb P2 Engine Not required P2 1005cc max Table B 2 requirements P2 Engine 40mm except the Table B 3 following Wings up to 16 5in cord single ele
19. may be used with carburetors which may incorporate any method of throttle actuation 9 Internal engine machining of any kind is not allowed i e machining of the cylinder heads pistons rods and other internal components is not allowed 10 Exterior machining for mounting of the engine or accessories is permitted however the intake or exhaust port faces shall not be modified 11 Spark plugs engine sensors and any associated brackets or covers are free 12 Crankcase ventilation is free as long as it serves no other purpose 73 Engine rebuilds such as regrinding the crankshaft and sleeving the block must meet specifications in the factory service manual no overbore is permitted a b Automotive based 1 SCCA approved production based 4 cylinder automotive engines of a maximum displacement of 2000cc are allowed The approved engines are listed in the engine tables 2 Preparation limited to changes listed in the section above Stock Engine Preparation allowances 21 ldi EE ET hall 4 kt suchas rod bolts are free timing_may _beadiusted but the camshafts_must remain stock4 Oisvsterms ore free SPORTS CAR CLUB OF AMERICA INC 14 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com K9 A XID Sports Car Club of America butterfly throttle actuation may _be_used for fuel injected _engines Any 9_Internal engine machining of any kind is no
20. member may request a determination on the compliance of their vehicle or its components by submitting a Compliance Request Form to the Club Racing SPORTS CAR CLUB OF AMERICA INC 17 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 gt Sports Car Club of America Department at which time a letter will be entered into the CRB letter system The Compliance Request Form is available through the Club Racing Department A The staff will review the request and must consult with the CRB and other appropriate experts B Club Racing will schedule in person inspection of the vehicle or components by a class expert The expert will submit a written opinion back to Club Racing and the CRB C Club Racing and the CRB will review the expert s opinion If required the CRB may initiate a clarification of the applicable rule s Club Racing will then submit a written ruling to the applicant D A fee will be determined and paid in advance of the inspection A portion of the fee may be refunded at the discretion of SCCA E Verification of compliance is based on the GCR as of the date of the written response to the member The GCR changes annually and there is no guarantee of compliance beyond the current rules season 2 15576 May Fastrack Terry Ozment Drones at the Track Add 2 2 6 2 2 6 Commercial and private unmanned aircraft systems aka drones
21. ment only unrestricted end plate on end mounted wings SPORTS CAR CLUB OF AMERICA INC PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 gt Sports Car Club of America 11 of 20 A Recommended Rules Changes october 2015 Sports Car Club of America AMAC AM5 94 54 Stock Engine P2 Engine 36 5mm Minimum width Fox 2 Seater 900Ib Table B 1 55 inches Zephyrus 1005cc max P2 Engine Not required Mustmeet Decker 1 2 Table B 2 under body P2 Engine 38 5mm aerodynamic Table B 3 requirements tA Modified P2 Engine 37mm sectione Engine Table B 1 Must meet all 950lb P2 Engine Not required P2 1005cc max Table B 2 requirements P2 Engine 39mm except the Table B 3 following Wings up to 16 5in cord single element only unrestricted end plate on end mounted wings Enterprise See GCR Sports Racer section 9 1 8 F for complete specifications Radical Stock Engine Motorcycle 37 5mm Radical wing or SR 3 1000Ib only P2 Engine P2 class SR 4 1005cc max Table compliant wing Stock Engine Motorcycle 40 5mm and end plate 1300Ib only P2 Engine Radical rear 1005 lt 1370 Table diffuser cc max permitted Radical 1500lb Sealed 42 5mm Radical wing or SR 3 Radical Radical Cup P2 class Cup engine compliant wing and and end plate transmission Radical rear diffuser permitted Radical S
22. nder a single or multiple sanction numbers See alse 16 Sanction The documentary authority granted by the SCCA to organize and hold a competition This term also is used to describe the event organized under a single sanction number which is evidence of that documentary authority See alse 13 D 1 Grand Touring GT1 1 17272 August Fastrack Club Racing Board Recommended Portion of Letter 17030 GT1 Front Spoilers Change 9 1 2 D 8 k 1 k Spoilers 1 A front spoiler may be fitted It shall not protrude beyond the overall outline of the car as viewed from above except for a front splitter that may extend up to twe five 2 0 5 0 inches Trans Am approved bodies have a unique splitter that is approved as a part of the body and as such is exempt from the 25 0 inch dimension The additional splitter is allowed only on air dams not already incorporating a splitter that extends forward of the factory bumper The spoiler shall not extend aft of the forward most part of the front fender opening cutout and shall not be mounted more than four 4 inches above the horizontal centerline of the front wheel hubs Full width bottom shrouding of the front spoiler nosebox area front undertray is permitted but must be flat and can extend no farther rearward than the center of the engine harmonic balancer Undertray may not be SPORTS CAR CLUB OF AMERICA INC 4 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax
23. number and the CRB will expedite review and provide clarification of the applicable rule s as may be appropriate D A fee for the service is 100 A portion of the fee may be refunded at the discretion of Club Racing E Verification of compliance is based on the GCR as of the date of the written response to the member The GCR changes annually and there is no guarantee of compliance beyond the current rules season KHEKEKKHKKEKEKKEKKRHEKKEKHEKKRHEKHKEKKEK KEK KEKE KEK KKK HK KEK KKKE KEKE KKK KKRHEKKEKKKKE Recommended Items for 2015 The following subjects were approved by the Board of Directors in their May 2015 meeting These items will be effective 6 1 2015 1 14612 May Fastrack Steve Harris Replacement for GCR 8 1 4 Compliance Review Thank you for your request The CRB recommends that the Board of Directors approve these changes to be effective 6 1 2015 Change 8 1 4 8 1 45 Protests Any entrant driver crew organizer or official participating in an event may protest any decision act or omission of another entrant driver crew organizer official or any other person connected with that event whose actions the protestor believes to be in error or which violate the GCR the Supplemental Regulations or any condition involving SCCA s sanction of the event except where exemption from protest is specified elsewhere in the GCR or the event Supplementary Regulations Add new section 8 1 4 8 1 4 Compliance Review A
24. s a quarter window larger than 50 square inches may be used in the area normally used to mount the permitted NACA duct in an attempt to minimize the amount of water entering the cockpit Enough open area for the driver to exit in an emergency shall remain open at all times 2 17028 September Fastrack Sean Reilly Addition of Brake Cooling Ducts to Front Bumper Thank you for your request Replace 9 1 4 N 4 4 Gi E E SE e E SPORTS CAR CLUB OF AMERICA INC PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 A Recommended Rules Changes october 2015 gt Sports Car Club of America 4 Brake duct inlets may be added solely for the purpose of ducting air to the front brakes These allowed ducts must be incorporated in the front spoiler as standard in light openings other than headlights in an allowed air dam and or by the removal of the fog lights and or stock false grills originally located in the front fascia 3 17492 October Fastrack Eric Thompson Variable Intake Runners In GCR section 9 1 4 G 17 clarify the cam timing language 17 Variable cam timing VTEC VANOS etc and variableterngth geometry intake manifolds may be partially or wholly removed or disabled Variable cam timing systems that use multiple cam lobes for each valve s may remove lobes from the camshaft s that are not being used For 13B Rotary Engines the 5
25. t allowed e_machining_of the allowed 40 3 Any one piece flywheel with a minimum weight of 5lbs is permitted ii Cran iari b c Motorcycle four stroke based Any medificatiens or adiustments net specticalhtcstec sre rnetattesmecern steclenqaes 1 SCCA approved production based motorcycle engines with a maximum of 4 cylinders and with a maximum displacement of 1500cc 2 Preparation limited to changes listed in the section above Stock Engine Preparation allowances 2 Camshafttiming may be 3_Oilsystems_are free 7_Inlet systemis_freetthe SCCA may adiust performance by the use of an HR 8 3 Titanium valves may be substituted with stainless steel of the same diameter e d Two Stroke Engine 2 stroke engines with a maximum displacement of GCR 1200cc and a maximum of 4 cylinders Each intake port for each cylinder must have a venturi type inlet restrictor that is placed such that all air inducted into each cylinder must pass through the defined restrictor There are NO exceptions The required inlet restrictor may be placed anywhere in the inlet tract as long as it meets the requirement that all air inducted into each cylinder must pass through the required restrictor balance tubes are not allowed 1 15828 March Fastrack Matt Miskoe Minimum Driver Age SPORTS CAR CLUB OF AMERICA INC PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Ch
26. th and 6th intake port actuators and valves may be removed or disabled STU 1 17261 September Fastrack Eric Heinrich Limit Alternate Turbos to One of Two Options for All of STU Thank you for your suggestion Insert 9 1 4 1 H 3 and re number all subsequent 3 Factory turbocharged cars must run the stock turbo or any turbo from the following list KKK Borg Warner KO4 IHI VF30 Additional alternate turbos with similar specifications may be considered at a future date Touring T1 1 16997 September Fastrack Marc Hoover Mazdaspeed Miata Alternate Throttle Body Thank you for your request For T1 Mazdaspeed Miata add to Notes Mazda 0000 06 5999 throttle body allowed 2 17096 September Fastrack Scotty B White One Last Look at Viper s for 2015 In T1 change the weight of the following Dodge Vipers Dodge Viper incl Comp Coupe ACR ACR X 8300 OEM weight 3550 3475 Dodge Viper incl Comp Coupe ACR ACR X 8300 weight 3500 3400 Dodge Viper ACR X 8400 OEM weight 3700 3600 T2 SPORTS CAR CLUB OF AMERICA INC 7 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 gt Sports Car Club of America 1 16389 June Fastrack Kurt Rezzetano Spring Rate Change for Mustang GT and Boss Thank you for your request In Touring 2 please change the notes for the 2012 Boss 302 Mustang the 11 14 Mustang GT and the 05 10
27. the original location maintains the same plane as the original core and requires no body or structure modifications to install Any openings created by fitting an alternate radiator must be blocked to prevent air from entering the engine compartment At least one functional stock OEM cooling fan must be maintained and mounted in the stock location The Fan shroud and brackets may be modified for installation 5 A radiator screen of 4 725 inch minimum mesh may be added in front of the radiator The screen must be a single layer and installed behind the front bumper cover and attached to the air guide Tape and or other materials may not be applied to the mesh orin the radiator opening in the bodywork Tape or other added dhrecthyic the pactater Super Touring ST 1 16858 June Fastrack Christopher Jurkiewicz Driver Cooling NACA Duct Location Thank you for your letter The removal of NACA from 9 1 4 F 7 and 9 1 4 F 10 can be found in letter 16938 Technical Bulletin Change 9 1 4 F 7 7 Both front windows driver and passenger shall be down preferably removed whenever the vehicle is on track The OEM window opening on the front doors shall not be filled in with any material other than the material required to mount a NACA duct for driver cooling If used the NACA duct shall be mounted in the frent tewer cernerefthe window opening The area closed off to mount the NACA duct shall not exceed 50 square inches In rain condition
28. tock Engine Motorcycle 37 5mm Radical wing or Club Sport 1000lb only P2 Engine P2 class Pro Sport PR 1005cc Table compliant wing 6 Stock Engine Motorcycle 40 5mm and end plate 1300lb only P2 Engine 61 in width 1370 cc max Table min Radical rear diffuser permitted Bobsy TBD Stock Engine P2 Engine 37mm Minimum width 950 b Table B 1 55 inches 1005cc max P2 Engine Not required Must meet Table B 2 under bedy P2 Engine 39mm aerodynamic Table B 3 requirementsinA SPORTS CAR CLUB OF AMERICA INC PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 TE Sports Car Club of America Modified P2 Engine 38mm sectione Engine Table B 1 Must meet all 1025lb P2 Engine Not required P2 1005cc max Table B 2 requirements P2 Engine 40mm except the Table B 3 following Wings up to 16 5in cord single element only unrestricted end plate on end mounted wings Diaso D962 1005cc max Motorcycle Body front only P2 Engine splitter and Table wing either original OEM or P2 compliant Jondal 94 54 Stock Engine 2 cycle P2 Minimum width 950lb Engine Table 55 inches Mustmeet 1025lb requirements Must meet engine weight requirements per the latest 2 stroke engine table Must meet all P2 requirements except the following Wings up to 16 5in cord single element only unrestricted end plate on end mounted wings
29. ude total number of entries DNS s the overall and class finishing positions for all starters the number of laps completed for all starters the overall time of the race the winner s margin of victory the winner s average speed the fastest lap time for all starters and any new course records A finisher starter is defined as any car that has taken the green flag in a race A DNS is defined as any car that turned a wheel on the track during practice or qualifying but did not start the race See 640 3 A 6 10 2 SPORTS CAR CLUB OF AMERICA INC 3 of 20 PO Box 19400 Topeka KS 66619 0400 800 770 2055 Fax 785 232 7214 www scca com A Recommended Rules Changes october 2015 Sports Car Club of America 6 10 TIMING LINE STARTERS FINISHERS AWARDING OF POINTS AND WINNERS 6 10 2 Race Starter One of the following conditions must be met for a car to be considered a race starter and receive credit for a finish 6 10 3 Race Finisher Awarding of Points 4 17146 October Fastrack Lindy Toland Competition vs Event Change Appendix A Administrative Glossary 12 Competition A contest for driver and car given a competitive nature by publication of results Practice and qualifying for starting positions are included in the term competition A competition may also be referred to as a race See alse speed 13 Event An entire program of competitions Also known as a race event This term includes all sessions run u
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