This track has been raced on 4 configurations (The Circuit, 2.57 mi; 2.92 mi; 1.83 mi; 3.02 mi). Laps on different configurations are not comparable, so only events on the 2.57 mile layout are shown; switch above to see the others.
One run is left out as not that car's own laps (far quicker than the car managed in any other session and than anyone else in its class all week; usually a swapped transponder): Thomas Lepper in Cal Club 2026 Grp 1 EP FP HP B-Spec Race 1 (1:42.146; the car's best in any other session was 2:12.311 and the rest of the class's best all week 2:09.353).
6 laps are left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.
One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it.
Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors
S1 SF → IM1 0.65 mi
S2 IM1 → IM2 0.75 mi
S3 IM2 → SF 1.17 mi
Spd In → Out 0.03 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
By car
Car
Class
Drivers
Lap
Qual
Race
Trap
S1
S2
S3
Stohr WF1
P2
2
1:12.573Kevin Mitz
1:12.573Kevin Mitz
1:39.758Tim Day Jr
155.4Tim Day Jr
26.848Tim Day Jr
28.010Tim Day Jr
42.420Tim Day Jr
Stohr WF1 (2004)
P2
1
1:12.573Kevin Mitz
1:12.573Kevin Mitz
Stohr WF1
P2
1
1:37.278Tim Day Jr
1:37.278Tim Day Jr
1:39.758Tim Day Jr
155.4Tim Day Jr
26.848Tim Day Jr
28.010Tim Day Jr
42.420Tim Day Jr
BMW M3
T1
1
1:46.465Ian Barberi
1:46.465Ian Barberi
1:47.434Ian Barberi
114.9Ian Barberi
28.992Ian Barberi
30.811Ian Barberi
46.263Ian Barberi
BMW M4 GT4
T1
1
1:47.084Drew Delmonico
1:47.084Drew Delmonico
1:47.467Drew Delmonico
161.4Drew Delmonico
29.150Drew Delmonico
30.850Drew Delmonico
46.316Drew Delmonico
Pontiac GTO
T1
1
1:59.123Ed Gless
1:59.760Ed Gless
1:59.123Ed Gless
120.7Ed Gless
32.383Ed Gless
34.587Ed Gless
51.370Ed Gless
Ford Mustang
T1
1
1:59.261Pratt Cole
1:59.261Pratt Cole
98.6Pratt Cole
32.624Pratt Cole
34.661Pratt Cole
51.577Pratt Cole
Mini Cooper
B-Spec
2
2:09.353Trenton Kramer
2:09.353Trenton Kramer
2:09.916Trenton Kramer
121.5Trenton Kramer
34.887Trenton Kramer
37.301Trenton Kramer
56.951Trenton Kramer
Mazda 2
B-Spec
3
2:10.149Ali Naimi
2:11.287Ali Naimi
2:10.149Ali Naimi
117.2Ali Naimi
34.986Ali Naimi
37.336Ali Naimi
57.011Ali Naimi
Toyota Yaris
B-Spec
1
2:10.513Joseph Gersch
2:10.513Joseph Gersch
2:10.749Joseph Gersch
118.3Joseph Gersch
35.332Joseph Gersch
37.456Joseph Gersch
57.202Joseph Gersch
The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.
Rule changes between these events
Cal Club 2023 → Cal Club 2024 2023-02-24 to 2024-02-23
B-Spec Early Model Mini
#33363 from John Phillips · Rule change · TB 23-03 (2023-03 Fastrack)
fasterB-Spec Mini Cooper R56 MT/AT and Clubman R55 fuel pressure regulator increased from 40mm to 41mm with OE catalyst.
In BSPEC Spec Lines, Mini Cooper (R56) MT (07-10), change Notes as follows: “40 1mm FPR required with OE catalyst” “OBX header part #10-2101-2S permitted with 40mm FPR.” In BSPEC Spec Lines, Mini Cooper (R56) AT (07-10), change Notes as follows: “40 1mm FPR required with OE catalyst” “OBX header part #10-2101-2S permitted with 40mm FPR.” In BSPEC Spec Lines, Mini Cooper Clubman (R55) (07 - 10), change Notes as follows: “40 1mm FPR required with OE catalyst”
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“OBX header part #10-2101-2S permitted with 40mm FPR.”
T1 Sequential Gearbox Limitations in T1
#33691 from David Mead · Rule change · TB 23-03 (2023-03 Fastrack)
neutralT1 cars with aftermarket sequential transmissions get 10-inch max bellhousing; non-sequential cars gain 100 lbs weight break.
In GCR, Section 9.1.9.1.I.4., change as follows: "Aftermarket sequential transmissions are permitted. Cars with aftermarket sequential shift transmissions shall utilize a 1:1 (or greater/overdriven) ratio in top gear. Transmission location must be OEM. Maximum bellhousing length is 10 inches. Cars that don’t use an aftermarket sequential transmission may decrease their competition weight by 100 lbs."
fasterT1 GT4 all nine cars lose 125 lbs minimum weight with driver, from 3200–3575 to 3075–3450.
In Touring 1 - GT4 Spec Lines, change Min. Weight with Driver (LBS) as follows: Aston Martin Vantage AMR GT4: "3575 3450" Audi R8 GT4: "3550 3425" BMW M4 GT4: "3500 3375" Ford Mustang GT4: "3550 3425" Maclaren 570S GT4: "3450 3325" Mercedes AMG GT4: "3450 3325" Porsche 718 Cayman GT4 CS MR: "3200 3075"
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Porsche 718 GT4 RS Clubsport: "3450 3325" Toyota Supra GR GT4: "3350 3225"
B-Spec Helper Versus Tender springs.
#33866 from Frank Schwartz · Rule change · TB 23-03 (2023-03 Fastrack)
slowerB-Spec may use helper springs up to 500 pounds rate; tender springs now prohibited.
In B-Spec Category Specifications, GCR Section 9.1.10.E.36., change as follows: "Suspension: competitors may use the OEM suspension, the specific suspension kit approved on the spec line or any B14 Bilstein shock or strut with no modifications except as required for mounting or to achieve allowed camber. Any camber plate may be used, but may not alter caster. Caster shall be within factory specification. Any part required to adapt the B14’s to the car must be submitted for approval by the CRB and added to the individual spec line. Any spring, including ‘helper’ or ‘tender’ springs, up to a maximum spring rate of 500 pounds may be used. Helper springs made of thin flat wire that are designed to take up the gap between the main spring and shock/strut at full travel are allowed. Tender springs are not allowed. Spring are allowed to be strapped or zip tied to the body. The purpose of the strap should be to keep the spring in place when the axle goes into rebound.
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The strap can serve no other function. Bump stops may be deleted but cannot be modified or substituted and shall serve no other purpose. Adjustable sway bar end links may be used on all cars. Sway bars may be disconnected and removed."
In T1 Spec Lines, Chevrolet Camaro Gen 5 ('10-'15) Including SS, Z28, classify Spec Line Number 1135 as follows:
A specification table follows in the original; it is not shown here.
P2 Remove redundant effective date language and update engine table
#34012 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)
neutralP2 engine table wording updated; redundant effective date language removed.
In P2 Engine Table, Spec Line B.1, change as follows:
P2 E&O - Correct dimensional equivalents
#34038 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)
slowerP2 motorcycle engines: 2011+ Kawasaki restrictor reduced to 34mm, minimum weight raised to 1100 lbs; 2009+ other brands weight raised to 1100 lbs.
In P2, GCR section 9.1.8.C.D.2, change as follows: "Height: No part of the vehicle having special or significant aerodynamic function shall exceed a height of 115cm (45.275 inches) above the ground with the car in normal racing trim, driver aboard." In P2, GCR section 9.1.8.C.D.3, change as follows: "However, no portion shall extend more than 10cm (3.937 inches) beyond a plane tangent to the outer face of the front and rear wheels with tires." P2 Engine Table Spec
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Line Engine Series
A specification table follows in the original; it is not shown here.
B-Spec T5 Rules Feedback
#33595 from Morgan Trotter · Rule change · TB 23-05 (2023-05 Fastrack)
neutralB-Spec and C-Spec wording clarified: CATEGORY to CATEGORIES, rules priority clarified for tire sizes, rim widths, springs, anti-roll bars, performance equipment.
In B-Spec, GCR Section 9.1.10.B, add as follows: “9.1.10. B-SPEC and C-SPEC CATEGORY CATEGORIES B-Spec (B-Spec) C-Spec (C-Spec) 9.1.10 continues in the B-SPEC and C-SPEC Category Rules.” In B-Spec, GCR Section 9.1.10.B-SPEC Category, change as follows: “These specifications are presented as an adjunct to the Manufacturer’s Service Manual. They are not meant to supersede the information that is in the manual that legitimately applies to the make, model, and year of car with the exception of the
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following items: TIRE SIZES, RIM WIDTHS, SPRINGS, ANTI-ROLL BAR(S), and PERFORMANCE EQUIPMENT. In the case of the foregoing exceptions, the B-Spec these Competition Rules will have priority. These specifications reflect the best information available at the time of publication. Any error found in this edition will be updated when reliable specifications are available from the manufacturer/manufacturer distributor or other sources recognized by SCCA®, Inc. A. Definition The B-Spec and C-Spec CATEGORY categories shall be considered primarily as a form for the membership to race street stock automobiles. Eligibility of cars may be discontinued at any time, for any reason other than competitive stature. The burden of proof lies upon any participant seeking action against another participant. NOTE: A Shop/Service Manual or its equivalent for the specific make, model, and year of automobile is required to be in the possession of each entrant. Manufacturer Shop/Service Manuals may come in the form of printed material, microfiche, CD, DVD, and/or Internet access to manufacturer website databases. It is the responsibility of the competitor to provide the electronic device capable of accessing the data for compliance verification. If Manufacturer Shop/Service Manuals are not available, then the competitor shall have a copy of the official SCCA® Vehicle Technical Sheet (VTS) with them at every event and shall present it for reference when officially requested. The manual is intended to aid SCCA® Technical Scrutineers in identifying parts and the configuration of the automobile. Overhaul procedures that in the slightest way would increase performance are not to be utilized (e.g., milled heads/blocks, porting, etc.). Blueprinting and balancing are inconsistent with the philosophy of this class and are not permitted. B. Automobile Eligibility Only those cars listed on spec lines are eligible to compete. Cars classified will be approved by EPA and DOT for sale in the United States and by Environment Canada for sale in Canada. They shall be models available to the general public for purchase. Additions and deletions of automobiles shall be at the discretion of the SCCA®. The vehicle identification number (VIN) shall correspond with the model automobile classified. At least one VIN plate or stamping shall remain in place on the dashboard or chassis that corresponds with the model automobile classified. C. Classification Classifications of automobiles eligible for competition will be reviewed on an annual basis and will be effective as of January 1st. D. Technical and Safety Items The following represent the only safety items and modifications permitted and required on automobiles involved in B Spec and C-Spec competition. Cars must meet comply with the GCR. The addition of safety items not specifically listed is not permitted. No permitted component/modification shall additionally perform a prohibited function. 1. Roll cages shall be contained entirely within the driver/passenger compartment and must comply with GCR Section 9.4, Roll Cages for GT and Production Based Cars. 2. Installation of a fire extinguisher or fire system as specified in GCR Section 9.3, Fire System. 3. Installation of a safety harness system as specified in GCR Section 9.3, Driver’s Restraint System. 4. All cars shall run with both front door windows fully open (down) if equipped, and shall have a driver’s side window safety net per GCR Section 9.3, Window Safety Nets. Any cars where a window safety net cannot be installed, arm restraints shall be used. Arm restraints are not an acceptable substitute for window nets in other cars. Window safety nets shall be mounted in such a manner to provide protection in the event the driver’s door opens. Rear windows shall be run in the closed (up) position. 5. Passive restraint systems shall be deactivated.* 6. Air bag systems shall be disarmed and may be removed.* If so equipped, the rolling door lock mechanism may be deactivated by unplugging the components. 7. The driver’s seat (only) shall be replaced with a one-piece, bucket-type race seat. Standard seat tracks/brackets may be modified, reinforced, and/or removed to facilitate replacement mountings provided they perform no other function. 8. Steering lock mechanisms may be removed or disabled. 9. An electrical master switch may be installed. *If car is used on public roads, these items should be replaced, reactivated, rearmed, etc. when not in competition. E. Vehicle Preparation The following represents the only items authorized in the preparation of a vehicle for B-Spec and C-Spec competition other than safety items as required in Section 9.1.7.D, Technical and Safety Items. Modifications shall not be made unless specifically authorized herein. No permitted component/modification shall additionally perform a prohibited function. 1. Appearance shall be neat and clean. Automobiles that are dirty either externally or in the engine or passenger compartments, or that show bodywork damage or that are partially or totally in primer, or that do not bear the prescribed identification marks shall not be approved for competition. Vehicles may be painted any color(s). 2. Towing eyes per GCR Section 9.3, Towing Eyes, shall be fitted. 3. Hubcaps, wheel trim rings, jack, and tools shall be removed. 4. All mud flaps shall be removed. 5. Spare wheels and tires may be removed. Spare tire covers and trunk mats and/or trunk carpeting shall be removed if they present a hazard as a loose flying or flapping object. 6. All adjustments shall be at the manufacturer’s specification and/or within the manufacturer’s specified tolerances unless they are specifically allowed in the GCR (example camber angle). 7. Tires: a. Tires shall be Hankook 205/50R15 C51 or Hankook 200/580R15 Z217. No mixing of wet and dry tires on the same car. Tires must be run unmodified. b. When using the wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire. 8. Wheels: Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum Wheel/rim weight shall be 13 lbs. All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must be the same dimensional offset. Aftermarket wheel studs and/or wheel bolts are allowed. Wheel bolts may be replaced with studs and nuts. Wheel spacers are allowed, the same thickness spacer must be used on all four corners. Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude beyond the fender opening when viewed from the top perpendicular to the ground. 9. Radio/stereo audio equipment and air conditioning refrigerant systems are the only options permitted and may be non- manufacturer, standard equipment. Two way radios may be used. Hand controls are allowed in those instances where the driver can demonstrate the physical need for them. Removal of rear window wipers and wiper motor is allowed. 10. Fuel, coolant, oil fluid hoses and clamps, oil filters, fuel filters, and belts (fan, alternator, etc.) may be substituted with others of equivalent manufacturer’s specifications. 11. Brake fluid: May be substituted with other equivalent manufacturer’s specification. 12. Lubricants: Lubricants may be substituted with any lubricant. Additives are unrestricted. 13. Spark Plugs: Authorized spark plugs listed in spark plug manufacturer’s application charts, owner’s manual, manufacturer’s shop/service manual, or equivalent justified by one cross reference chart. Use of resistor- or non resistor spark plug allowed. 14. “Special performance” specifications from the manufacturer that go beyond those listed on a specification line for a car will not be considered valid. Any manufacturer determined to be supplying false specifications to competitors or to SCCA will be advised that the specifications shall be withdrawn and/or the eligibility of the car(s) involved will be terminated. The SCCA® Club Racing Board (CRB) is authorized to implement these terminations on an immediate basis without Board of Directors (BoD) approval. In the case of service circulars, recalls, etc., the burden of proof of validity will be upon the competitor. 15. Ride height: Minimum ride height is six (6) inches, to be measured without driver at the lowest point of the rocker panels, but not to include welded seams or fasteners. A vehicle may have a ride height listed in the spec line, the competitor must conform to the spec line. 16. Batteries may be replaced with those of alternate manufacture provided they are of similar amp hour (Ah) capacity and weight. Battery must remain in stock location. Additional hold-down brackets are allowed. 17. Weight: The minimum weight as listed on the B Spec and C-Spec line is with driver and ballast may be added to meet the listed minimum weight. Refer to section 9.3. Ballast, for placement of the ballast. If a cool suit system is utilized, the cool suit system shall be weighed with the car as it came off the track. A. The ballast shall be in segments no lighter than ten (10) pounds and no heavier than fifty (50) pounds. B. Each segment shall be fastened with a minimum of two (2) one-half inch (1/2”) bolts and positive lock nuts of SAE Grade 5/Metric 8.8 or better, and shall utilize large diameter, load distributing washers. 18. Fuel: Only the fuel type specified by the owner’s or manufacturer’s shop/service manual may be used. Refer to GCR Section 9.3, Fuel, for permitted fuel specifications. 19. Removal of Air Conditioning System: The manufacturer’s or aftermarket air conditioning system may be removed. Items that serve a dual purpose, such as the alternator/air conditioning compressor bracket, may not be substituted. Idler pulleys and belts may be substituted as needed when compressor is removed. 20. Removal of radio and speaker components is permitted. Removal of horn and cruise control system is permitted. 21. A radiator screen of minimum one-fourth inch (1/4”) mesh may be added in front of the radiator and contained within the bodywork. 22. Air filter elements may be substituted with other air filters of equivalent specifications and fit in the standard location with no modifications. The filter element must be substantiated by a minimum of one (1) manufacturer cross-reference for specific vehicle application. 23. Any brake pad or lining may be used. Metal or plastic dust shields may be removed or modified by removing material. 24. Standard replacement brake rotors/drums may be obtained from sources other than the original manufacturer provided they are the exact equivalent. 25. The Club Racing Board may approve the use of automatic transmissions and/or hand controls on a case-by-case basis. 26. Interior mirror(s) may be replaced with a multi-panel type mirror, but shall not extend beyond the confines of the interior. 27. Only OE catalyst are permitted. The exhaust system downstream of the primary catalyst may be replaced provided: A. Said replacement system retains the same original configuration, e.g., routing, single, dual, etc. B. The system exits from the body in the same approximate location(s) as the original. When an original equipment single exhaust system is cosmetically split into dual outlets, it is permitted to continue as a single system provided it exits in approximately the same location as one of the originals. C. The system meets all appropriate event-specific sound level requirements. D. All oxygen sensors must be intact and in stock location. E. Primary catalytic converter may not be modified in any way. F . The Mazda 2, Fiat 500, 2007-10 Mini Cooper all may remove the primary cat/exhaust manifold to install their approved header. All oxygen sensors must be maintained. The original heat shields or heat wrap may be used to insulate the replacement header from objects they come close to. 28. Aftermarket steering wheels, and their required mounting modifications, are permitted. Removable steering wheels are permitted. 29. Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot Lap, Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data acquisition systems (GPS or accelerometer-based) are allowed. One connection from the OBD2 port to the stand-alone data acquisition system is permitted. No additional sensors may be added and the data acquisition system must not tie into the vehicle electronics in any other manner beyond this allowance. The SCCA may install a standalone data box in a competitor’s car at any time. Refusal of the installation of the data box will result in disqualification. Analog (needle type) gauges for oil pressure, oil temp and water temp may be added as long as they are not tied into the vehicles ECU in any way. Stand alone shift lights may be added. 30. Sunroofs, Targa tops, and T-tops are only permitted if installed by the manufacturer of the vehicle. If installed they must be retained in the closed position and securely bolted in place unless the operating rails adequately secure the panel. Glass panels are permitted. Glass panels may be replaced with a ferrous metal panel. Components (motors, cables, rails) may be removed provided the panel is securely retained. 31. Hatchback “privacy covers” must be completely removed. 32. Cosmetic plastic engine covers may be removed. 33. Original brake and clutch hoses may be replaced by braided stainless steel brake lines and clutch lines. 34. Interiors may be removed including seats, seat brackets, carpet, carpet padding, rear door panels, OEM seat belts, interior trim, and headliners. Front door window glass, front window operating mechanism, inner door trim panel, armrest, map pockets, wiring harnesses for front door locks, power mirrors, seat wiring, etc., and inside front door latch/lock operating mechanism may be removed. Original radio/ stereo audio equipment and air conditioner refrigerant systems may be removed. Heater cores, and hoses, must remain except duct work under seats. Duct work behind the dash may be trimmed but not removed to allow for roll cage installation. 35. Maximum 3.5 degrees negative camber is allowed on front and rear suspensions. Strut suspensions may adjust camber by the use of eccentric bolts (crash bolts) at the strut-to-spindle, slotted strut mounting holes at the spindle, and/or by use of any slotted camber only adjuster plate at the top of the strut mounting plate. If upper strut slotted plates are used, they shall be located on existing chassis structure and may not serve as reinforcement for that structure. Modifications to the top of the strut tower may be made to allow for camber adjustment only. Modifications to the existing holes must only be moved straight inboard even if the existing slots would translate the top of the strut rearward. On other forms of suspension, camber adjustment may be achieved by the use of shims and/or eccentric bolts (crash bolts). 36. Suspension: competitors may use the OEM suspension, the specific suspension kit approved on the spec line or any B14 Bilstein shock or strut with no modifications except as required for mounting or to achieve allowed camber. Any camber plate may be used, but may not alter caster. Caster shall be within factory specification. Any part required to adapt the B14’s to the car must be submitted for approval by the CRB and added to the individual spec line. Any spring, including ‘helper’ or ‘tender’ springs, up to a maximum spring rate of 500 pounds may be used. Helper springs made of thin flat wire that are designed to take up the gap between the main spring and shock/strut at full travel are allowed. Tender springs are not allowed. Springs are allowed to be strapped or zip tied to the body. The purpose of the strap should be to keep the spring in place when the axle goes into rebound. The strap can serve no other function. Bump stops may be deleted but cannot be modified or substituted and shall serve no other purpose. Adjustable sway bar end links may be used on all cars. Sway bars may be disconnected and removed. If a manufacture does not offer an upgrade, a competitor may submit a shock and spring package for approval by the CRB. At the time of approval, that kit will become the standard for that make and model until the manufacture submits a factory supported kit. The competitor supplied kits needs to be comprised of the following: • Any non-adjustable shock absorber intended for the specific make model and year car is allowed. The shock absorber must be installed in the original mounting locations. Remote shocks are not permitted. Threaded shock bodies or adjusters may be used. • Any spring up to a maximum spring rate of 500 pounds may be used with the OEM suspension, the manufacturer’s upgraded suspension kit, or the Bilstein B14 suspension kit. 37. ECU/PCM: OEM ECU/PCMs is required. Alternate engine calibrations are allowed. The car may meet federal emission standards, but shall provide OBD II compliant data to the data link connector. Manufacturers may provide a stability control override procedure or module. 38. B Spec and C-Spec front and rear toe settings are free. Rear toe adjustments may be achieved by the use of shims. 39. Fenders and wheel openings shall remain unmodified. It is permitted to roll under or flatten any interior lip on the wheel opening for tire clearance. Cars with plastic/composite fenders may remove any interior wheel opening lip, but the resulting material edge shall be no thinner than the basic fender material thickness. Non metallic inner fender liners may be removed. 40. An oil catch can is permitted. 41. Optional Hood Pins may be added to supplement the original hood latch system. All parts of the original hood latch system must remain in the car. 42. Brake ducts are permitted, but they must serve no other purpose. Duct openings may be created by the removal of the fog lights. Alternatively, duct openings may be created by opening 2 sections up to 14.5 square inches each of stock false grills originally located in the front fascia, or radiator shroud, but in this case while fog lamps may be removed. Fog light holes must be completely covered. The stock headlamp location is not permitted for brake ducting. 43. Automatic and cvt transmissions versions of all legal cars are legal for competition in B-Spec and C-Spec meeting their spec line. Models with OEM paddle shifters are acceptable. Auxiliary transmission coolers may be approved on a case by case basis. Part numbers must be submitted and added to the cars spec line. 44. Auxiliary transmission coolers may be approved on a case by case basis. Part numbers must be submitted and added to the cars spec line. 45. Restrictor – BS B-Spec and C-Spec cars whose spec line require a restrictor will follow the definition of a Flat Plate Restrictor (FPR) outlined in Appendix F with only one exception, B-Spec and C-Spec requires the thickness of the Restrictor to be 0.050” to 0.079. 46. All B-Spec and C-Spec cars in post-race impound at all Majors and Super Tour races shall open their hoods and hatches/trunks for the purpose of visual inspection by other competitors. Competitors may thereafter initiate a protest as permitted under the GCR.” In GCR, CONTENTS, change as follows: “9.1.9.2 TOURING (T2-T5 4) CATEGORY” “T5 697” In GCR, Section 9.1.9. TOURING CATEGORY CLASSES, remove as follows: “Touring 5 (T5) Regional Class” In GCR, Section 9.3.22. FIRE SYSTEM, change as follows: “All cars shall be equipped with an On-Board Fire System except T3, T4, T5,” In GCR, Section 9.1.9.2 TOURING (T2-T5) CATEGORY header, change as follows: “TOURING (T2-T5 4) CATEGORY” In GCR, Section 9.1.9.2 TOURING (T2-T5) CATEGORY, change as follows: “Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition T2-T5 4 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T5 4 car and conform to their specification line allowances as classified. T5 is a Regional only class.” In GCR, Section 9.1.9.2.D.1.e.1., change as follows: “Any overbore up to .020” permitted T2- T5 4with +30 lbs. penalty. Oversize OEM equivalent pistons are required. This allowance does not apply to any car adhering to spec rules.” In GCR, Section 9.1.9.2.D.1.i.5., change as follows: “T2- T5 4 only:” In GCR, Section 9.1.9.2.D.5.a.1., change as follows: “T2- T5 4:” “Spherical bearings/bushings are not permitted in T2- T5 4 except for the specific examples listed in the class rules or vehicle spec line.” In GCR, Section 9.1.9.2.D.5.b.2., change as follows: “T4 and T5 only” In GCR, Section 9.1.9.2.D.5.b.2.c., change as follows: “T3, T4 and T5 4:” In GCR, Section 9.1.9.2.D.5.b.2.d., change as follows: “T2- T5 4 only:” In GCR, Section 9.1.9.2.D.7.a.3., remove as follows: “T5 only: (unless specified on spec line) Any aftermarket wheel allowed.” In GCR, Section 9.1.9.2.D.7.b., remove as follows: “ T5 has a maximum tire width of 225 and a minimum aspect ratio of 45.” In GCR, Section 9.1.9.2.D.10.c., remove as follows: “All cars shall have, as a minimum, a fire extinguisher meeting the specifications of GCR Section 9.3 Fire System. Touring 2 cars must have a fire system installed. Touring 3,and Touring 4, and Touring 5” In GCR, Section 9.1.9.2.E.1., remove as follows: “Touring Category Classes are as follows: T2, T3, T4 and T5 4:” In GCR, Touring Spec Lines, remove 9.1.9.2. T5 Spec Line in it’s entirety.
neutralT1 GT4 weights clarified for nine cars, ranging from 3200 lbs Porsche 718 Cayman to 3575 lbs Aston Martin.
RM 23-04 – Touring 1 weights dated 3/21/2023 As an E&O to the February Fastrack, in T1-GT4 leave weights as follows: Aston Martin Vantage AMR GT4: 3575 Audi R8 GT4: 3550 BMW M4 GT4: 3500 Ford Mustang GT4: 3550 Maclaren 570S GT4: 3450 Mercedes AMG GT4: 3450
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Porsche 718 Cayman GT4 CS MR: 3200 Porsche 718 GT4 RS Clubsport: 3450 Toyota Supra GR GT4: 3350
P2 Clarify minimum side body height requirement
#34143 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
neutralP2 side body height requirement clarified: outermost surface between wheel openings must equal front axle centerline height.
In P2, GCR section 9.1.8.C.D.6, change as follows: "As viewed from the side, T the outermost surface of side pods body between the front and rear wheel openings and above the floor must have a minimum height equal to the height of the front axle centerline."
P2 Clarify closed cockpit single seat car allowance
#34144 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
neutralP2 closed cockpit single seat cars now prohibited unless specifically allowed in Table 1.
In P2, GCR section 9.1.8.C.C, add a section as follows: "4. Closed cockpit single seat cars are not permitted unless specifically allowed by a spec line in Table 1."
T1 Touring 1 Tire Sizes
#34191 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
fasterT1-GT4 McLaren 570S and Mercedes AMG GT4 front tires widen to 315 mm.
In C-Spec Spec Lines, classify Mazda 3i Touring 2.0 Skyactive MT (12-13) as follows:
A specification table follows in the original; it is not shown here.
B-Spec T5 Ride Height Rules.
#33552 from Michael Ogren · Rule change · TB 23-06 (2023-06 Fastrack)
neutralB-Spec minimum ride height set to 6 inches, C-Spec to 5½ inches.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.15., add the following: "Ride height: For B-Spec Minimum ride height is six (6) inches, for C-Spec Minimum ride height is five and a half (5½) inches,"
B-Spec T5 Spring Allowance
#33557 from Mike Ogren · Rule change · TB 23-06 (2023-06 Fastrack)
neutralB-Spec springs capped at 500# front and rear; C-Spec at 600# front, 800# rear; both may be strapped to body.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.36., add the following: "Suspension: B-SPEC competitors may use the OEM suspension, the specific suspension kit approved on the spec line or any B14 Bilstein shock or strut with no modifications except as required for mounting or to achieve allowed camber. C-Spec competitors may use the OEM Suspension, the specific suspension kit approved on the spec line or TBD. Any camber plate may be used, but may not alter caster. Caster shall be within factory specification. Any part required to adapt the B14’s to the car must be submitted for approval by the CRB and added to the individual spec line. Any spring, including ‘helper’ or ‘tender’ springs, up to a maximum spring rate of 500 pounds may be used. for B-Spec the maximum spring rate is 500# front and rear, for C-Spec the maximum spring rate is 600 pounds front and 800 pounds rear. Spring are allowed to be strapped or zip tied to the body. The
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purpose of the strap should be to keep the spring in place when the axle goes into rebound. The strap can serve no other function. Bump stops may be deleted but cannot be modified or substituted and shall serve no other purpose. Adjustable sway bar end links may be used on all cars. Sway bars may be disconnected and removed.
B-Spec T5 Wheel Minimum Weight
#33558 from Mike Ogren · Rule change · TB 23-06 (2023-06 Fastrack)
neutralB-Spec wheels minimum weight set to 13 lbs, C-Spec to 17 lbs.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.8., add the following: "Wheels: For B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum Wheel/rim weight shall be 13 lbs. For C-Spec Required wheel/rim diameter is seventeen inches (17”). Maximum wheel/rim width is eight inches (8”). Minimum Wheel/rim weight shall be 17 lbs.."
B-Spec T5 Tire Options
#33641 from Frank Schwartz · Rule change · TB 23-06 (2023-05 Fastrack)
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.7.a., add the following: "For B-Spec: Tires shall be Hankook 205/50R15 C51 or Hankook 200/580R15 Z217. No mixing of wet and dry tires on the same car. For C-Spec: Tires shall be 225/45R17. DOT Tires must be run unmodified.
fasterB-Spec and C-Spec Chevrolet Sonic allows ZZP aluminum radiator #ZZP-ZZ013; Hatch MT restrictor increases to 34mm.
In B-Spec Spec Lines, Chevrolet Sonic 4dr Sedan MT (12-19), add to Notes as follows: "Allow Aluminum Radiator #ZZP-ZZ013." In B-Spec Spec Lines, Chevrolet Sonic 4dr Sedan AT (12-19), change as follows: Car: "Chevrolet Sonic 4dr SedanHatch AT (12-19)" Notes:"Allow Aluminum Radiator #ZZP-ZZ013." In B-Spec Spec Lines, Chevrolet Sonic 4dr Hatch MT (12-19) , add to Notes as follows: "6T40e automatic equipped only. 33 34mm flat plate restrictor required. GM suspension kit #23123679 permitted. Allow rear sway bar ZZ Performance #ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013."
B-Spec Fasteners for Bumper Caps
#33797 from Kent Carter · Rule change · TB 23-06 (2023-05 Fastrack)
neutralB-Spec and C-Spec bumper caps now allow positive fasteners like machine screws and T-nuts or rivet-nuts; self-drilling and sheet metal screws prohibited.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E., add the following: "47. Positive fasteners may be used to attach the bumper caps to the OEM bumper cap clips and may include a machine screw and T-nut or a rivet-nut. Pointed screws such as self-drilling/tapping or sheet metal screws are prohibited."
B-Spec Allow CAN Bus Connection to Data Systems
#33806 from Kent Carter · Rule change · TB 23-06 (2023-05 Fastrack)
neutralB-Spec and C-Spec allow CAN bus connections to data systems for monitoring only; systems must not send data.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.29., change as follows: "Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot Lap, Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data acquisition systems (GPS or accelerometer-based) are allowed. One connection from the OBD2 port to the stand-alone data acquisition system is permitted. No additional sensors may be added and the data acquisition system must not tie into the vehicle electronics in any other manner beyond this allowance. The SCCA may install a standalone data box in a competitor’s car at any time. Refusal of the installation of the data box will result in disqualification. Analog (needle type) gauges for oil pressure, oil temp and water temp may be added as long as they are not tied into the vehicles ECU in any way. Stand
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alone shift lights may be added. Connections to the CAN bus are permitted for the purpose of reading CAN data to monitor vehicle and driver performance using data logging systems, dashboards and indicators. All connected systems must remain 'silent' on the CAN bus: they may receive data but must not send data on the BUS. GPS-based data acquisition and coaching devices are permitted."
B-Spec Request Ford Fiesta weight reduction 25lbs
#33890 from Andrew Doyle · Rule change · TB 23-06 (2023-05 Fastrack)
fasterB-Spec Ford Fiesta 5dr and 4dr lose 25 lbs each, to 2470 lbs minimum weight.
In B-Spec Spec Lines, Ford Fiesta 5dr Hatchback (11-19), change Weight as follows: "2495 2470" In B-Spec Spec Lines, Ford Fiesta 4dr Sedan (11-19), change Weight as follows: "2495 2470"
T1 Request to reinstate T1 S197 Mustang
#34048 from David Mead · Rule change · TB 23-06 (2023-05 Fastrack)
neutralT1 Ford Mustang S197 (05-14) reinstated with 3550 lbs minimum weight, 75mm restrictor, Voodoo engine permitted.
In T1 Spec Lines, classify Ford Mustang S197 (05-14) Includes GT, Boss302, 302S, 302R, FR500C, FR500S as follows:
A specification table follows in the original; it is not shown here.
Applies to Ford Mustang on this page: Pratt Cole
B-Spec Threaded Metal Inserts for Plastic Intake Manifolds
#34164 from Kent Carter · Rule change · TB 23-06 (2023-06 Fastrack)
neutralB-Spec and C-Spec allow metal threaded inserts in plastic intake manifolds for throttle body fasteners.
In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E., add the following: "48. All cars which use throttle body to intake fasteners directly into a plastic intake, are allowed to convert the intakes to accommodate a metal threaded insert. This is done for the sole reason that repeated removal of the restrictor plate wears the threads in the intake and eventually causes the need to replace the intake."
B-Spec BoB Adjustments
#34208 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
unclearB-Spec Ford Fiesta 5dr and 4dr lose 25 lbs each to 2470; Honda Fit MT and CVT lose 50 lbs each to 2525; Mazda2 loses 50 lbs to 2280; Kia Rio restrictor increases from 39 to 41 mm; Mini Cooper variants gain 75 lbs to 2675 with larger restri…
The popularity of BSPEC has brought heightened attention to the Balance of Performance (BoP). Given the wide diversity of eligible cars and their designs, driving ability, car preparation/tuning levels, and other variables outside of SCCA’s control, the BoP in this class has been remarkably close. As compared to IMSA’s job of balancing cars which are all professionally prepared, driven, and highly instrumented, the job of our advisory committees and CRB is considerably more difficult. There are most certainly outliers and cars which are superior under certain conditions, but in the absence of BoP regulations which vary from track to track a perfect balance every weekend is not to be expected. The BoP is set by SCCA for what is perceived to be the ultimate tune and best driver in a given car across the entire racing season and over as many tracks as can be reasonably sampled. If a car is not prepared, tuned, and driven to its ultimate capability we cannot expect that it will be on par with cars of other manufacture which
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are to such level; the BoP is not a handicap program. And, while the class is named “BSPEC”, it is not a spec class as is FE2 or SRF3. The more experienced mechanics and drivers will certainly have an advantage over those who only race a few times per season. Anecdotal observations do not serve the SCCA in working towards a proper BoP, yet that is the type of information most commonly provided in support of a requested change. Hard data and experience are what drive change to the BoP. Despite what we believe to be an excellent BoP for this class, there is always room for improvement. The BSPEC Advisory Committee has recently been charged with the considerable task of classifying cars and refining the technical specifications for the new T5/CSPEC class and, as a result, does not have sufficient time or resources to address the immediate demands for BoP adjustments in BSPEC. As a result, veteran CRB members Peter Keane, Tom Start, and Sam Henry have poured through BSPEC data reports from events over the past eighteen (18) months and have recommended to the CRB the following changes which were approved during its most recent meeting. These changes will be effective beginning 5/1/2023 for positive adjustments and 6/1/2023 for negative adjustments. Data will be gathered as possible with a focus on continued improvement. Comments and suggestions regarding same should be forwarded through the official letter system. Your continuing support of BSPEC and SCCA is greatly appreciated. In B-SPEC Spec Lines, Ford Fiesta 5dr Hatchback (11-19), change Weight as follows: “2495 2470” In B-SPEC Spec Lines, Ford Fiesta 4dr Sedan (11-19), change Weight as follows: “2495 2470” In B-SPEC Spec Lines, Honda Fit MT (15-19), change Weight as follows: “2575 2525” In B-SPEC Spec Lines, Honda Fit CVT (15-19), change Weight as follows: “2575 2525” In B-SPEC Spec Lines, Kia Rio 5-door/LX (12-19), change Notes as follows: “39 41mm flat plate restrictor required.” In B-SPEC Spec Lines, Mazda2 (10-14), change Weight as follows: “2330 2280” In B-SPEC Spec Lines, Mini Cooper (R56) MT (07-10), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.” In B-SPEC Spec Lines, Mini Cooper (R56) AT (07-10), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.” In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (07 - 10), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.” In B-SPEC Spec Lines, Mini Cooper (R56LCI) MT (11-13), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 43mm FPR required.” In B-SPEC Spec Lines, Mini Cooper (R56LCI) AT (11-13), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 40 43mm FPR required.” In B-SPEC Spec Lines, Mini Cooper Countryman (R60) (11-16), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.” In B-SPEC Spec Lines, Mini Cooper Paceman (R61) (11-16), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.” In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (11-15), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.” In B-SPEC Spec Lines, Mini Cooper Coupe (R58) (12-15), change as follows: Weight: “(Effective 6/1/2023) 2600 2675” Notes: “(Effective 6/1/2023) 40 42mm flat plate restrictor required.”
T1 Gen 5 Camaro Engine
#33875 from Matt Spicuzzi · Rule change · TB 23-06 (2023-07 Fastrack)
neutralT1 Chevrolet Camaro Gen 5 LS7 gets two spec lines: 1131 with 70mm restrictor, 1136 with 53mm restrictor, both 3450 lbs minimum.
In T1-NEW Spec Lines, Chevrolet Camaro Gen 5 (10-15) Including SS, Z28, classify Spec Line Number 1131 and 1136 as follows:
A specification table follows in the original; it is not shown here.
T1 Inquiry to letter #33682
#34071 from Andrew Aquilante · Rule change · TB 23-06 (2023-07 Fastrack)
slowerT1 Chevrolet Camaro Gen 5, Corvette C5 and C6: engine resleeve restricted to stock parameters only, no longer LS3 bore/stroke.
In T1 NEW Spec Lines, Chevrolet Camaro Gen 5 (10-15) Including SS, Z28, change Engine Notes as follows: 1130: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1135: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement.May resleeve to stock parameters for engine repair or replacement." In T1 NEW Spec Lines, Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible, change Engine Notes as follows: 1132: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement."
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1134: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1136: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1138: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." In T1 NEW Spec Lines, Chevrolet Corvette C6 (05-13) - Includes Z51, GrandSport, Z06, Z06 Carbon, change Engine Notes as follows: 1150: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1160: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1170: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1180: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement." 1190: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair or replacement."
T1 Viper Cleanup
#34107 from Scotty B White · Rule change · TB 23-06 (2023-05 Fastrack)
fasterT1 Dodge Viper ACR/ACR-X restrictor increases from 50mm to 60mm flat plate.
In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1360, change Required Restrictor as follows: "50mm 60mm flat plate"
T1 Viper 8300 OEM FPR Size
#34268 from Scotty B White · Rule change · TB 23-06 (2023-05 Fastrack)
unclearT1 Dodge Viper ACR/ACR-X: Spec Line 1370 restrictor increases to 55mm, Line 1390 decreases to 55mm.
In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1370, change Required Restrictor as follows: "(2) 47mm 55mm flat plates" In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1390, change Required Restrictor as follows: "(2) 60mm 55mm flat plates"
B-Spec Hyundai Accent Restrictor Plate
#34331 from Jose Fabian · Rule change · TB 23-06 (2023-07 Fastrack)
fasterB-Spec Hyundai Accent GS Hatchback restrictor plate increases from 39mm to 41mm.
In B-Spec Spec Lines, Hyundai Accent GS Hatchback (13-19), change Notes as follows: "39 41mm"
B-Spec Hyundai Accent 2012 Model
#34332 from Jose Fabian · Rule change · TB 23-06 (2023-07 Fastrack)
neutralB-Spec Hyundai Accent GS Hatchback model years corrected from 13–19 to 12–19.
In B-Spec Spec Lines, Hyundai Accent GS Hatchback (13-19), change model as follows: "Hyundai Accent GS Hatchback (13 12 -19)"
T1 Ford Mustang S197 (05-14) Clarification
#34450 from Club Racing Board · Rule change · TB 23-06 (2023-05 Fastrack)
neutralT1 Ford Mustang S197 05-14 now requires OEM 8.8 differential housing.
In T1-NEW Spec lines, Ford Mustang S197 (05-14) Includes GT, Boss302, 302S, 302R, FR500C, FR500S, change Notes as follows: "OEM 8.8 Differential Housing"
T1 C5 Approved Aero That Was Mistakenly Deleted
#34374 from Joe Aquilante · Rule change · TB 23-08 (2023-08 Fastrack)
fasterT1 Corvette C5 gains approved aero parts: carbon rear spoiler, vented front splitter, side skirts, with 50 lb weight reduction allowed.
In T1 NEW Spec Lines, Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible, Spec Lines 1132-1138, add to Notes as follows: "Any option of OEM Bodywork parts may be used as basis for aero measurements. Rear spoiler max 5” Above bumper allowed. +50lbs. The following parts are permitted, with a 50lb decrease from base weight, in lieu of the aero options permitted in 9.1.9.1.B: (C7Carbon Rear- Spoiler CCC5 EX- RSB-GB, Vented Front Splitter CCC5-FS-GB, Side Skirts CCC5 SS-GB.)"
T1 Why no Camaro?
#34421 from Scotty B White · Rule change · TB 23-08 (2023-05 Fastrack)
neutralChevrolet Camaro GT4-R classified in T1 GT4 Spec Line 4035, minimum weight 3375 lbs, 315 max tire, 63mm restrictor, ineligible for Runoffs.
In T1 GT4 Spec Lines, classify Chevrolet Camaro GT4-R as follows:
A specification table follows in the original; it is not shown here.
T1 Request to Remove Expiration from T1 spec lines #1350 & #1370
#34470 from Scotty B White · Rule change · TB 23-08 (2023-05 Fastrack)
neutralT1 Dodge Viper ACR / SRT RT-10 and ACR/ACR-X spec lines 1350 and 1370 remove 12/23 expiration.
In T1 NEW Spec Lines, Dodge Viper ACR / SRT RT-10, change Spec Line Number as follows: "1350 *Spec line Expires 12/23*" In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X, change Spec Line Number as follows: "1370 *Spec line Expires 12/23*"
neutralT1 GT4 BMW M4 Spec Line Number changed from 4050 to 4030.
In T1 GT4 Spec Lines, BMW M4, change Spec Line Number as follows: "4050 4030"
B-Spec Initial car classifications and spec lines
#34461 from Kent Carter · Rule change · TB 23-09 (2023-09 Fastrack)
neutralC-Spec adds Chevrolet Cruze, Ford Focus, Honda Civic, Mazda 3i, Toyota Corolla, VW Jetta; updates Dodge Dart, Mazda3s, Toyota Corolla specs.
In C-Spec Spec Lines, add Chevrolet Cruze (10-16) as follows:
A specification table follows in the original; it is not shown here.
B-Spec B-Spec Tire
#35034 from Club Racing Board · Rule change · TB 23-11 (2023-11 Fastrack)
neutralB-Spec adds Goodyear Eagle RS dry and wet tires as options alongside Hankook; Hankook restricted to regional events from 2024.
RM 23-11 In GCR Section 9.1.10.7., change as follows: "For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For B-Spec Tires shall be Hankook 205/50R15 C51, or Hankook 200/580R15 Z217, P205/50ZR15 Goodyear Eagle RS (Dry tire) Catalog #D4850 or P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. For C-Spec: Tires shall be 225/45R17. No mixing of wet and dry tires on the same car. Tires must be run unmodified. Effective 1-1-2024 Hankook Tires will be allowed at regional events only, through 6-30-2024."
T1 New T1 add spec line for C5 corvette LS2 engines (Copy from C6)
#33764 from Craig Anderson · Rule change · TB 23-12 (2023-09 Fastrack)
neutralT1 Chevrolet Corvette C5 LS2 added with 6000cc displacement, 3300 lbs minimum weight, 72mm flat plate restrictor.
In T1 Spec Lines, classify Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible as follows:
A specification table follows in the original; it is not shown here.
T1 2004 - 2006 Pontiac GTO Re-Integration Back Into T1
#34403 from Ed Gless · Rule change · TB 23-12 (2023-12 Fastrack)
neutralPontiac GTO 2006-2009 re-integrated into T1 with LS2 at 3400 lbs, 72mm restrictor, and LS3 at 3500 lbs, 61mm restrictor.
In T1 Spec Lines, classify Pontiac GTO 2006-2009 as follows:
A specification table follows in the original; it is not shown here.
Applies to Pontiac GTO on this page: Ed Gless
T1 Request to Classify Porsche 997-1 GT3 Cup
#34561 from Scotty B White · Rule change · TB 23-12 (2023-12 Fastrack)
neutralT1 Porsche 997-1 GT3 Cup added at spec line 4210, minimum weight 3050 lbs.
In T1 Spec Lines, delete the Porsche 996 GT3 Cup car from the standard spec lines and classify "Homologated car" section as follows: T1 – Homologated Cars
A specification table follows in the original; it is not shown here.
neutralB-Spec allows Hankook tires at regionals only through 6-30-2024; Goodyear only from 7-1-2024 for all events.
In GCR, Section 9.1.10.E.7., change as follows: "a. For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For B-Spec Tires shall be Hankook 205/50R15 C51, Hankook 200/580R15 Z217, P205/50ZR15 Goodyear Eagle RS (Dry tire) Catalog #D4850 or P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. Effective 1-1-2024 Hankook Tires will be allowed at regional events only, through 6-30-2024. Effective 7-1-2024 Goodyear is the only legal specified tire allowed in B-spec for all events. For C-Spec: Tires shall be 225/45R17. No mixing of wet and dry tires on the same car. Tires must be run unmodified. Effective 1- 1-2024 Hankook Tires will be allowed at regional events only, through 6-30-2024. b. When using the Hankook wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire."
B-Spec Update 12-19 Nissan Versa Spec Line & Adjust BOP
#35074 from Matt Wolfe · Rule change · TB 24-01 (2024-01 Fastrack)
In B-Spec Spec Lines, Nissan Versa (2012), change Model as follows: "Nissan Versa Sedan (2012-2019)" In B-Spec Spec Lines, Nissan Versa Note (2013), change as follows: Model: "Nissan Versa Note Hatchback (2013-2019)" Min Weight: "2550 2490" In B-Spec Spec Lines, Nissan Versa (2013-), delete Spec Line in its entirety.
unclearT1-GT4 batch adjustments: five cars lighter, two heavier, restrictors and ECU maps changed, five models now eligible for Runoffs.
In GCR, Section 9.1.9.1.A.T., change as follows: "Tires- Tires must conform to GCR section 9.3.TIRES and als o must conform to spec line requirements. DOT approved tires are permitted. Slicks conforming to the spec line are permitted." In Touring 1 - Homologated Cars Spec Lines, 4100- BMW M2 ClubSport Racing, change Must Conform To as follows: "Tires conforming to SRO TCX rules allowed. Must meet factory specs." In Touring 1 - Homologated Cars Spec Lines, 4120- Ford Mustang FP350S 2017, change as follows: Must Conform To: "Tires conforming to Trans Am SGT tire rules allowed Must meet factory specs." Chassis Notes: "VIN not required. Additional permitted allowances: DOT tires required. Other consumables are open, alternate
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driveshaft permitted, aftermarket wheels and fuel cell per Touring category rules permitted. Shocks conforming to T1 rules permitted. Alternative rear toe links permitted." In T1-GT4 Spec Lines, change Chassis Notes as follows: Aston Martin Vantage AMR GT4: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)** Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Audi R8 GT4: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." BMW M4 GT4: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Chevrolet Camaro GT4-R: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Ford Mustang GT4: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Maclaren 570S GT4: "Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Mercedes AMG GT4: "Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Porsche 718 Cayman GT4 CS MR: "Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Porsche 718 GT4 RS Club-sport: "Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." Toyota Supra GR GT4: "**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**Slick tires conforming to IMSA GT4 or SRO GT4 specs are permitted." In T1-GT4 Spec Lines, change as follows: Aston Martin Vantage AMR GT4: Weight: “3575 3490” Performance Control: “SRO power level ECU Map 3 IMSA Map id 11” Chevrolet Camaro GT4-R: Weight: “3375 3435” Performance Control: “63 62mm” Ford Mustang GT4: Weight: “3550 3535” Performance Control: “63 71mm SRO compliant restrictor IMSA ECU Cal” Maclaren 570S GT4: Weight: “3450 3250” Performance Control: “SRO 2019 BOP ECU map SRO Rest 1” Mercedes AMG GT4: Weight: “3450 3470” Performance Control: “Power level 2 map 5” Porsche 718 Cayman GT4 CS MR: Weight: “3200 3250” Performance Control: “54 53.7mm” Toyota Supra GR GT4: Weight: “3350 3315”
In T1 Spec Lines, delete the following spec line numbers in their entirety:
A specification table follows in the original; it is not shown here.
P2 E&O - Clarify B.1 modified engine range in AMAC spec lines
#35225 from Club Racing Board · Rule change · TB 24-01 (2024-01 Fastrack)
neutralP2 AMAC modified engine range clarified to 2008 and older stock engines only, restrictor 38mm, weight 1025 lbs.
In P2 Table 1, change as follows: P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
B-Spec Clarifying the ECU and Data Acquisition language
#35236 from Kent Carter · Rule change · TB 24-01 (2024-01 Fastrack)
neutralB-Spec and C-Spec ECU and data acquisition rules clarified: ECU must be unaltered OE, no device capable of altering ECU characteristics permitted; data acquisition expanded to allow tachometer, air-fuel ratio, cylinder head temperature sen…
In GCR, Section 9.1.10.E.37., change as follows: "ECU/PCM: OEM ECU/PCMs is required. Alternate engine calibrations are allowed. The car may meet federal emission standards, but shall provide OBD II compliant data to the data link connector. Manufacturers may provide a stability control override procedure or module. ECU/PCM: All electronic control systems (ECU/PCM/ABS, etc) must be unaltered, model- appropriate US domestic market OE devices unless otherwise permitted on the spec line. Alternate engine calibrations are allowed but no changes are permitted and no device capable of altering ECU characteristics may be present in the car from the time the car enters the grid until after impound and any stewards’ actions. OBD II compliant data correct for the car must be present at the data link connector. Malfunction codes (‘check engine light’) may be present. Manufacturers or competitors may
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submit ABS, stability control and speed limiter override procedures or modules for approval and listing on the spec line." In GCR, Section 9.1.10.E.29., change as follows: "Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot Lap, Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data acquisition systems (GPS or accelerometer-based) are allowed. The SCCA may install a standalone data box in a competitor’s car at any time. Refusal of the installation of the data box will result in disqualification. Analog (needle type) gauges for oil pressure, oil temp and water temp may be added as long as they are not tied into the vehicles ECU in any way. Stand alone shift lights may be added. Connections to the CAN bus are permitted for the purpose of reading CAN data to monitor vehicle and driver performance using data logging systems, dashboards and indicators. All connected systems must remain ‘silent’ on the CAN bus: they may receive data but must not send data on the BUS. GPS-based data acquisition and coaching devices are permitted. Data acquisition systems (GPS or accelerometer-based), lap timers, and coaching systems are allowed. Tachometer, shift lights, oil pressure and temperature, coolant pressure and temperature, air-fuel ratio, and cylinder head temperature sensors may be added, integrated into a data acquisition system, and/or displayed to the driver from entry into the grid until the end of impound and stewards’ actions connections to the CAN bus are permitted only for the purpose of reading CAN data to monitor and display vehicle and driver performance using data acquisition systems, dashboards and indicators. All connected systems must remain ‘silent’ on the CAN bus: they may receive data but must not be capable of sending or altering data on the bus, nor may they be capable of changing ECU behavior. Collected data may be displayed to the driver. Devices must be securely mounted. External devices may not be connected to the car during impound without the permission of a steward or tech official."
P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines
#35340 from Michael A Reupert · Rule change · TB 24-01 (2024-01 Fastrack)
unclearP2 Suzuki GSX-R1000 07/08 engine crankcase may swap to GSX-S1000 16/19 part #11301-04840.
In P2 Engine Table, Spec Line B.1, add to notes as follows: "No modifications allowed on engines manufactured after 2008 model year. 2007-2008 Suzuki GSX-R1000 crankcase part #11300-21860 may be replaced with 2016-2019 Suzuki GSX-S1000 crankcase part #11301-04840."
fasterC8 Corvette T1 restrictor plate increases from 70mm to 72mm flat plate.
In T1 NEW Spec Lines, Chevrolet Corvette C8 (20- 23) - Includes Z51, #1210, change Required Restrictor as follows: "70mm 72mm - Flat Plate"
B-Spec Split Spec Line of Automatic and Manual 2nd Gen (09-14) Fit
#35251 from Matt Wolfe · Rule change · TB 24-02 (2024-02 Fastrack)
neutralB-Spec Honda Fit MT (09-14) and AT now split into separate spec lines with distinct allowances.
In B-Spec Spec Lines, classify Honda Fit AT (09-14): "09-14 Honda Fit AT" Gear Ratios: "2.99, 1.68, 1.07, 0.76, 0.55" Final Drive: "4.56" Notes: Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress # 62.1061. Allow Setrab 50-119-7612 transmission cooler in addition to OEM. Any
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aftermarket exhaust/header allowed. (Effective date 1/1/24) Any Cold Air Intake Package allowed (any manufacturer) with a 25lb adder. In B-Spec Spec Lines, Honda Fit MT (09-14) make changes as follows: Or 2.99, 1.68, 1.07, 0.76, 0.55 in automatic Or 4.56 in automatic "Alternate transmission ratio’s and final drive are for automatic equipped cars only and allow Setrab 50-119-7612 transmission cooler in addition to OEM. Any aftermarket exhaust/header allowed for the Automatic Transmission Honda Fit."
B-Spec Equalize Mazda 2 Headers and clean up spec line
#35259 from Matt Wolfe · Rule change · TB 24-02 (2024-02 Fastrack)
slowerB-Spec Mazda 2 10-14 weight increases 70 lbs to 2350, cat-delete headers now permitted.
In B-Spec Spec Lines, Mazda2 (10-14), change as follows: Weight: "Effective 3-1-2024: 2280 2350" Notes: "Helper springs F&R 0000-04-9926, Spring spacer F&R 0000-04-9925, Front sway bar end links adjstbl 0000-04- 2202, Rear sway bar 0000-04-2203-RR or 0000-04-2312, Modified strut bearing plate 0000-04-2204, Crash bolt set 0000- 04-2205, Allow rear torque bar Corksport #Mz2-3-070. Cold air intake Corksport Mz2-6-117-31100 and air duct Mz2-6- 120-10 are allowed. Effective 3-1-2024: Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001, or Mazda Motorsports PN 0000-06-2410 permitted. Powerflex PFR19-1511BX2 rear suspension bushings allowed. Allow Mazda part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C-56- 110A, DO8C-56-311, DO7A-56-
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321."
B-Spec Rear Sway Bar Request for Nissan Versa and Versa Note 2013-
#35323 from Richard Osborne · Rule change · TB 24-02 (2024-02 Fastrack)
neutralB-Spec Nissan Versa and Versa Note 2013-2019 now permit Hardrace HR-Q0146 19mm rear sway bar.
In B-Spec Spec Lines, Nissan Versa (2013-), change as follows: Model: "Nissan Versa (2013-2019)" Notes: "Hardrace HR-Q0146 19mm rear sway bar permitted." In B-Spec Spec Lines, Nissan Versa Note (2013-), change as follows: Model: "Nissan Versa Note (2013-2019)" Notes: "Hardrace HR-Q0146 19mm rear sway bar permitted."
B-Spec Eliminate Redundant Trans Cooler Rule
#35353 from Matt Wolfe · Rule change · TB 24-02 (2024-01 Fastrack)
neutralB-Spec and C-Spec eliminate case-by-case auxiliary transmission cooler approval requirement.
In GCR, Section 9.1.10.E.44., eliminate and renumber accordingly: "44. Auxiliary transmission coolers may be approved on a case by case basis. Part numbers must be submitted and added to the cars spec line."
B-Spec Fix Sonic Hatchback MT Spec Line
#35371 from Jonathan Wickert · Rule change · TB 24-02 (2024-01 Fastrack)
neutralB-Spec Chevrolet Sonic 5dr Hatch MT allows aluminum radiator #ZZP-ZZ013.
In B-Spec Spec Line, Chevrolet Sonic 5dr Hatch MT (12-19), add to Notes the following: "Allow Aluminum Radiator #ZZP-ZZ013."
neutralT1 NEW class removes 23 spec lines including Acura NSX, Ferrari, Porsche 996, Nissan Z cars, and others; Porsche 997 spec line 1680 expiration removed.
In GCR Contents, change as follows: "9.1.9.1 TOURING (T1) CATEGORY NEW T1 NEW" In GCR, Section 9.1.9.1.Touring (T1) NEW Category Specifications, change as follows: "9.1.9.1.Touring (T1) NEW Category Specifications" In T1 NEW Spec Lines, change as follows: "9.1.9.1.A T1 NEW Spec Lines" "T1 NEW"
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In T1 NEW Spec Lines, delete the following Spec Lines in their entirety: "Acura NSX (Spec Line 1000) Acura NSX Turbo (Spec Line 1010) Acura NSX Turbo World Challenge (Spec Line 1020) Audi TTRS (GTS 2011 Spec) (Spec Line 1040) Dodge Viper ACR/ACR-X (Spec Line 1360) Ferrari 360 (Spec Line 1400) Ferrari 430 (Spec Line 1410) Ferrari 430 Challenge (Spec Line 1420) Mazda MX-5 (06-15) (Spec Line 1520 and 1530) Mazda RX-7 (Spec Line 1540) Nissan GTR (Spec Line 1550) Nissan 350/370Z (Spec Line 1560) Nissan 370Z Supercharged (Spec Line 1570) Nissan 350Z (Spec Line 1580) Nissan 350Z/370Z (Spec Line 1590) Porsche Cayman/S/GTS (05-15) (Spec Line 1600, 1610 and 1620) Porsche Cayman GTS (2011) (Spec Line 1630) Porsche 928 S4 Porsche 928 GTS-R (Spec Line 1640) Porsche 996 (Spec Line 1650) Porsche 996 TT OEM (Spec Line 1660) Subaru WRX, WRX STI (05-2020) (Spec Line 1700) Toyota Celica All-Trac (Spec Line 1710) Toyota Supra MK4 (Spec Line 1720)" In T1 NEW Spec Lines, Porsche 997, change Spec Line Number as follows: "1680 *Spec line Expires 12/23*"
Cal Club 2024 → Cal Club 2025 2024-02-23 to 2025-02-22
B-Spec BOP Adjustment for Yaris iA, 2020+ Versa, and 07-08 Honda Fit
#35382 from Matt Wolfe · Rule change · TB 24-03 (2024-03 Fastrack)
fasterB-Spec Honda Fit 07-08 loses 125 lbs to 2400; Versa S 2020+ loses 150 lbs to 2550; Yaris iA 16-20 loses 250 lbs to 2450.
In B-Spec Spec Lines, Honda Fit (07-08), change as follows: Min weight: "2525 2400" Notes: "Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Honda Fit (07-08) Automatic, change as follows: Min weight: "2525 2400" Add to Notes: "Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs
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competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Nissan Versa S (2020-), change as follows: Min weight: "2700 2550" Add to Notes: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change as follows: Min weight: 2700 2450" Add to Notes: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
T1 9.1.9.1 T1 new category item/ line 26 rule to expire Jan 1 2023
neutralB-Spec Honda Fit 07-08 rear sway bar part number changed to Progress #62.1060.
In B-Spec Spec Lines, Honda Fit (07-08) Automatic, change Notes as follows: "Allow rear sway bar Progress # 62.1061 0." In B-Spec Spec Lines, Honda Fit (07-08), add to Notes the following: "Allow rear sway bar Progress # 62.1060."
B-Spec Change restrictor from 30mm to 31mm (2015+ Honda Fit) and add 50#
#34857 from Matt Downing · Rule change · TB 24-04 (2024-04 Fastrack)
fasterB-Spec Honda Fit MT 2015-19 restrictor increases 30mm to 31mm, weight rises 2525 to 2550 lbs.
In B-Spec Spec Lines, Honda Fit MT (15-19), change as follows: Weight: ""2525 2550" Notes: "30 31mm" In B-Spec Spec Lines, Honda Fit MT (15-19), change as follows: Weight: ""2525 2550" Notes: "30 31mm"
B-Spec Wheel Offset and Spacer Revision
#35466 from Kent Carter · Rule change · TB 24-04 (2024-04 Fastrack)
fasterB-Spec and C-Spec now permit wheels of any offset if tire doesn't protrude beyond fender; spacers allowed with differing left-right offsets per axle.
In GCR, Section 9.1.10.E.8., change as follows: "Wheels: All wheels shall be one-piece metal castings or metal two piece welded. Wheels of any offset are permitted provided the tire tread (the portion of the tire that contacts the ground) does not protrude beyond the fender opening when viewed from the top perpendicular to the ground. Wheel spacers and aftermarket wheel studs/bolts are permitted. Wheel bolts may be replaced with studs and nuts. Total offset must be the same left to right for an individual axle but may differ from front to rear. For B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum Wheel/rim weight shall be 13 lbs. For C-Spec Required wheel/ rim diameter is seventeen inches (17”). Maximum wheel/rim width is eight inches (8”). Minimum
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Wheel/rim weight shall be 17 lbs. All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must be the same dimensional offset. Aftermarket wheel studs and/or wheel bolts are allowed. Wheel bolts may be replaced with studs and nuts. Wheel spacers are allowed, the same thickness spacer must be used on all four corners. "
neutralB-Spec Mini Cooper Countryman R60, Paceman R61, and Nissan Versa 1797cc spec lines expire 1/1/2025 unless appealed by 12/1/2024.
In B-Spec Spec Lines, Mini Cooper Countryman (R60) (11-16), add to Notes the following: ”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.**” In B-Spec Spec Lines, Mini Cooper Paceman (R61) (11-16), add to Notes the following: ”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.** ” In B-Spec Spec Lines, Nissan Versa (07-11) with 1797cc engine, add to Notes the following: ”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.** ”
Applies to Mini Cooper on this page: Trenton Kramer, Thomas Lepper
B-Spec Delete trim levels/update language for spec lines
neutralB-Spec model descriptions standardized: trim levels and door count designations removed or replaced with body style wording.
In B-Spec Spec Lines, change Model description as follows: "Chevrolet Sonic 4dr Sedan MT (12-19)" "Chevrolet Sonic 4dr Sedan AT (12-19)" "Chevrolet Sonic 5dr Hatch Hatchback MT (12-19)" "Chevrolet Sonic 5dr Hatch Hatchback AT (12-19)" "Ford Fiesta 5dr Hatchback (11-19)" "Ford Fiesta 4dr Sedan (11-19)" "Honda Fit MT (07-08)"
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"Honda Fit Automatic AT (07-08)" "Honda Fit MT (09-14)" "Hyundai Accent GS Hatchback (12-19)" "Kia Rio 5-door/LX Hatchback (12-19)" "Nissan Versa S (2020-)" "Toyota Yaris Hatchback (07-11)" "Toyota Yaris Hatchback (12-18)"
P2 CN Spec ECU
#35835 from Bart Wolf · Rule change · TB 24-05 (2024-05 Fastrack)
In P2 Engine Table, Spec Line E, change the notes as follows: "No engine modifications except for dry sump oil system, ECU mapping, and exhaust system the following: oil system, ECU, and exhaust are unrestricted."
P2 E&O - Correct FIA Group CN spec line notes
#35900 from Club Racing Board · Rule change · TB 24-05 (2024-05 Fastrack)
neutralP2 FIA Group CN spec notes clarified: Series changed to Challenge, documentation requirement moved to online link.
In P2 Table 1, FIA Group CN spec line, change the notes as follows: "FIA Group CN homologated chassis, brake calipers and discs, hub carriers, and suspension components are required. V de V European Proto Endurance Series Challenge permitted bodywork, rear diffuser, wing, wheels, and assisted shifting are allowed. Car M must comply with all other P2 requirements. Competitors must have copies of FIA Group CN Technical Regulations and V de V European Proto Endurance Series Challenge Sporting and Technical Regulations in their possession and present them upon request are available here: https://www.scca.com/pages/technical-forms-and-downloads."
neutralB-Spec and C-Spec wheels must be same thickness spacers all four corners; wording clarified on offset and protrusion rules.
In GCR, Section 9.1.10.E.8., change as follows: "Wheels: All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must be the same dimensional offset. Any offset is permitted so long as Wheels of any offset are permitted provided the tire tread (the that portion of the tire that contacts the ground) does may not protrude beyond the fender opening when viewed from the top perpendicular to the ground. Wheel spacers and aA ftermarket wheel studs/ and or wheel bolts are permitted allowed. Wheel bolts may be replaced with studs and nuts. Wheel spacers are allowed, but must be the same thickness on all four corners.Total offset must be the same left to right for an individual axle but may differ from front to rear. B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum
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Wheel/rim weight shall be 13 lbs. C-Spec Required wheel/rim diameter is seventeen inches (17”). Maximum wheel/rim width is eight inches (8”). Minimum Wheel/rim weight shall be 17 lbs. Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude beyond the fender opening when viewed from the top perpendicular to the ground."
neutralB-Spec Mazda2 and multiple Mini Cooper models eliminate redundant sway bar end link part number notes.
B-SPEC Spec Lines, elimination from Notes the following: Mazda2 (10-14): "Front sway bar end links adjstbl 0000-04-2202," Mini Cooper Hatchback (R50) MT (02 - 06): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Hatchback (R50) CVT (02 - 06): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper (R56) MT (07-10): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed."
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Mini Cooper (R56) AT (07-10): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Clubman (R55) (07 - 10): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper (R56LCI) MT (11-13): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper (R56LCI) AT (11-13): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Countryman (R60) (11-16): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Paceman (R61) (11-16): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Clubman (R55) (11-15): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed." Mini Cooper Coupe (R58) (12-15): "Front adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar links part number 35 50 6 772 is allowed."
neutralB-Spec Nissan Versa (09-11) spec line expires 1/1/2025 unless appeal filed by 12/1/2024.
In B-Spec Spec Lines, Nissan Versa (09-11), add to notes the following: "**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.**"
neutralB-Spec Hyundai Accent rear brakes corrected to 10.3 disc; Kia Rio rear brakes corrected to 10.3 disc.
In B-Spec Spec Lines, Hyundai Accent Hatchback (12-19), change brakes as follows: "(R) 9.9 drum or 10.3 drum disc" In B-Spec Spec Lines, Kia Rio Hatchback (12-19), change brakes as follows: "(R) 10.3 drum disc"
neutralB-Spec and C-Spec restricted to Goodyear Eagle RS/RS-R P205/50R15 and 225/45R17 tires respectively; Hankook tires removed; wet/dry mixing prohibited.
In GCR Section 9.1.10.E.7. change as follows: "a. For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For B- Spec: tires shall be Hankook 205/50R15 C51, Hankook 200/580R15 Z217, P205/50Z R15 Goodyear Eagle RS (Dry tire) Catalog #D4850 or P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. Effective 1-1-2024 Hankook Tires will be allowed at regional events only, through 6-30-2024. Effective 7-1-2024 Goodyear is the only legal specified tire allowed in B-spec for all events. Mixing wet and dry tires is not permitted. Tires may not be modified. All B-Spec competitors are required to place two (2) 12-inch or larger “Goodyear” decals on their cars, one on each side of the car above the front tire. C-Spec: Tires shall be 225/45R17. No Mixing of wet and dry tires on the same car is not permitted. Tires must be run unmodified.
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b. When using the Hankook wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire."
fasterB-Spec Sonic restrictors increased to 5-6mm, Fit weight cut 50-25 lbs, Mini Cooper weight reduced 45 lbs, various restrictor adjustments.
In B-Spec Spec Lines, change as follows: Chevrolet Sonic Sedan AT Notes: "33 5mm" Chevrolet Sonic Hatchback AT Notes: "34 6mm" Honda Fit AT (07-08) Weight (lbs): "2400 2350" Notes: "Any aftermarket header allowed."
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Honda Fit AT (09-14) Weight: "2525 2500" Notes: "Any Cold Air Intake Package allowed (any manufacturer) with a 25lb adder." Honda Fit CVT (15-19) Notes: "31 3mm" Mini Cooper Hatchback (R50) CVT (02-06) Weight (lbs): "2545 2500" Mini Cooper (R56) AT (07-10) Notes: "44 6mm (OE Catalyst) or 40 2mm (Header)" Mini Cooper (R56LCI) AT (11-13) Notes: "43 5mm (OE Catalyst) or 41mm (Header)"
B-Spec Require hood pins
#36233 from Frank Schwartz · Rule change · TB 24-08 (2024-08 Fastrack)
neutralB-Spec and C-Spec hood pins change from optional to recommended; factory release cable may be removed if pins used.
In GCR, Section 9.1.10.E.41., change as follows: "Optional Hood Pins may be added to supplement the original hood latch system. All parts of the original hood latch system must remain in the car. Installation of hood pins is recommended but not required. If hood pins are used, the factory release and cable must be removed, but the secondary latch may be retained. Vehicles equipped with plastic release cables may replace them with steel units. The OEM hood release latch may be relocated."
B-Spec Sonic Caliper Pistons
#36238 from Jonathan Wickert · Rule change · TB 24-08 (2024-08 Fastrack)
neutralB-Spec and C-Spec Chevrolet Sonic and Cruze allow Babyface Fabrication brake caliper pistons.
In B-Spec Spec Lines, change Chevrolet Sonic Sedan MT (12-19), add to Notes the following: "Allow Babyface Fabrication brake caliper piston SNC-SS." In B-Spec Spec Lines, change Chevrolet Sonic Sedan AT (12-19), add to Notes the following: "Allow Babyface Fabrication brake caliper piston SNC-SS." In B-Spec Spec Lines, change Chevrolet Sonic Hatchback MT (12-19), add to Notes the following: "Allow Babyface Fabrication brake caliper piston SNC-SS." In B-Spec Spec Lines, change Chevrolet Sonic Hatchback AT (12-19), add to Notes the following: "Allow Babyface Fabrication brake caliper piston SNC-SS."
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In C-Spec Spec Lines, change Chevrolet Cruze (2010-16), add to Notes the following: "Allow Babyface Fabrication brake caliper piston CRZ-SS."
B-Spec Scion IA/Toyota Yaris/Mazda 2 DY chassis suspension
unclearB-Spec Toyota/Scion IA Sedan 16-20 allows ST Suspension Kit 13275022, requires three Super Tour weekends and OBD-II data submission.
In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change Notes as follows: "38mm FPR. (Effective 11/1/2024) Allow ST Suspension Kit 13275022. This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
fasterHonda Fit AT 07-08 B-Spec and C-Spec: rear sway bar Progress #62.1060 and any cold air intake package now allowed.
In B-Spec Spec Lines, Honda Fit AT 07-08, change Notes as follows: "(Effective 11/1/2024) Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
T1 Changes to T1 Tires for GT4 and Other Cars
#35383 from Andrew Aquilante · Rule change · TB 24-12 (2024-12 Fastrack)
unclearT1 GT4 tire sizes adjusted across ten cars: most non-DOT rear to 305/660, Audi and McLaren 305/645, Camaro and Mustang 305/680.
In T1 GT4 Spec Lines, change Tire Size as follows: Aston Martin Vantage AMR GT4 4010: "315 DOT, 305/660 Non-DOT" Audi R8 GT4 - Spec Line #4020: "315 DOT, 305/645 Non-DOT" BMW M4 GT4 - Spec Line #4030: "315 DOT, 305/660 Non-DOT" Chevrolet Camaro GT4-R- Spec Line #4035: "315 DOT, 305/680 Non-DOT" Ford Mustang GT4 - Spec Line #4040: "315 DOT, 315/680 Non-DOT" Mclaren 570S GT4 - Spec Line #4050: "315 DOT, 305/645 Non-DOT" Mercedes AMG GT4 - Spec Line #4060: "315 DOT, 305/660 Non-DOT"
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Porsche 718 Cayman GT4 CS MR - Spec Line #4070: "315 DOT, 305/660 Non-DOT" Porsche 718 GT4 RS Clubsport - Spec Line #4080: "315 DOT, 305/660 Non-DOT" Toyota Supra GR GT4 - Spec Line #4090: "315 DOT, 305/660 Non-DOT"
neutralBMW M4 GT4 (G82) added to T1 GT4 at 3525 lbs minimum weight with Red power stick control.
In T1 GT4 Spec Lines, SL#4030, change as follows: Model: "BMW M4 GT4 (F82)" Performance Control: "Gold power stick Red power stick" In T1 GT4 Spec Lines, classify BMW M4 GT4 (G82) as follows:
A specification table follows in the original; it is not shown here.
T1 Alt. Clutch Allowance
#36606 from Hugh Stewart · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT1 Spec Lines now permits 5.5 inch clutch in Engine Notes.
In T1 Spec Lines, SL# 1050, change add to Engine Notes the following: "5.5 inch clutch permitted."
T1 BOP Changes Need Updates
#36667 from Joe Rainey · Rule change · TB 24-12 (2024-12 Fastrack)
fasterT1 GT4 Spec Line 4020 restrictor opens from 44mm to 45mm, minimum weight drops to 3400 lbs.
In T1 GT4 Spec Lines, Spec Line 4020, change as follows: Performance Control: Power level 2020, 44mm 45mm SRO compliant restrictor" Min. Weight with driver (LBS): "3550 3400"
T1 Request Ford Performance Darkhorse R in T1
#37136 from Christopher Childs · Rule change · TB 24-12 (2024-12 Fastrack)
neutralMustang Darkhorse R added to T1 homologated cars at 3,250 lbs minimum with 305/315 tires, ineligible for Runoffs until 3 Super Tour events.
In T1-Homologated Cars Spec Line, classify Mustang Darkhorse R (Mustang Challenge) as follows: T1 – Homologated Cars
A specification table follows in the original; it is not shown here.
T1 Car Mods for T1 Corvette under line item 1150
#37173 from Thomas Napolitano · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT1 Corvette may roll or flatten wheel opening lips for tire clearance; plastic fenders may remove lips if edge thickness matches basic material.
In GCR, Section 9.1.9.1.A.2,, add the following: "It is permitted to roll under or flatten any interior lip on the wheel opening for tire clearance. Cars with plastic/composite fenders may remove any interior wheel opening lip, but the resulting material edge shall be no thinner than the basic fender material thickness. Non-metallic inner fender liners may be removed. Vents may be added to fenders."
unclearB-Spec and C-Spec cars replace wheelbase spec with induction restrictor (mm) values, effective 2025-01-01.
In B-Spec Spec Lines that are not expiring on 1/1/25, replace Wheelbase as follows: "(Effective 1/1/2025)Wheelbase Restrictor (mm)" In B-Spec Spec Lines, update the value in the spec lines under the Restrictor column as follows effective 1/1/2025: Chevrolet Sonic Sedan MT (12-19): "2525 33" Chevrolet Sonic Sedan AT (12-19): "2525 35" Chevrolet Sonic Hatchback MT (12-19): "2525 34" Chevrolet Sonic Hatchback AT (12-19): "2525 36" Fiat 500 (12-17): "2300"
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Ford Fiesta Hatchback (11-19): "2470 39" Ford Fiesta Sedan (11-19): "2470 38" Honda Fit MT (07-08): "2450" Honda Fit AT (07-08): "2450" Honda Fit MT (09-14): "2500" Honda Fit AT (09-14): "2500" Honda Fit MT (15-19): "2530 31" Honda Fit CVT (15-19): "2530 33" Hyundai Accent Hatchback (12-19): "2570 41" Kia Rio Hatchback (12-19): "2570 41" Mazda2 (10-14): "2490" Mini Cooper Hatchback (R50) MT (02-06): "2466" Mini Cooper Hatchback (R50) CVT (02-06): "2466" Mini Cooper (R56) MT (07-10): "2466 44 (OE Catalyst) 40 (Header)" Mini Cooper (R56) AT (07-10): "2466 46 (OE Catalyst 42 (Header)" Mini Cooper Clubman (R55) (07-10): "2547 44 (OE Catalyst) 40 (Header)" Mini Cooper (R56LCI) MT (11-13): "2466 43" Mini Cooper (R56LCI) AT (11-13): "2466 43" Mini Cooper Clubman (R55) (11-15): "2547 42" Mini Cooper Coupe (R58) (12-15): "2466 42" Nissan Micra Cup Cars (Canadian): "2450" Nissan Versa Sedan (2012-2019): "2600" Nissan Versa Hatchback (2012-2019): "2600" Nissan Versa (2020-): "2618 38" Toyota/Scion IA Sedan (16-20): "2570 38" Toyota Yaris Hatchback (07-11): "2461 42" Toyota Yaris Hatchback (12-18): "2510 42" Toyota Yaris Sedan (07-12): "2550 41"
B-Spec Bilstein Rear Shock Request for Hyundai Accent/Kia Rio
#36965 from Alex Ratcliffe · Rule change · TB 25-01 (2025-01 Fastrack)
neutralB-Spec Hyundai Accent and Kia Rio approve Bilstein B8 shock 33-187112 for rear suspension use.
In B-Spec Spec Lines, Hyundai Accent Hatchback (12-19), add to Notes the following: "Bilstein B8 shock 33-187112 approved for use in rear suspension." In B-Spec Spec Lines, Kia Rio Hatchback (12-19), add to Notes the following: "Bilstein B8 shock 33-187112 approved for use in rear suspension."
T1 T1 Parity Compared to GT4
#37170 from Tony Ave · Rule change · TB 25-02 (2025-02 Fastrack)
slowerT1 Mustang gains 125 lbs to 3600, restrictor shrinks 65mm to 60mm. Corvette gains 50 lbs to 3500, restrictor shrinks 70mm to 67mm. BMW deleted.
In T1 Spec Lines, change Weight and Restrictor Required as follows: Mustang - Spec Line 1430 Weight: "3475 3600" Restrictor Required: "65mm 60mm - FPR" Corvette Spec Line 1190 Weight: "3450 3500" Restrictor Required: "70mm 67mm - Flat Plate" In T1 Spec Lines, delete Spec Line BMW # 1190 in its entirety.
B-Spec Remove Redundant Language from Notes Sections
neutralB-Spec Honda Fit AT, Fit CVT, Mazda2, Mini Cooper R50 MT and CVT, Toyota Yaris remove redundant notes language.
In B-Spec Spec Lines, Honda Fit AT (07-08), change Notes as follows: "Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted. Any aftermarket header allowed. Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). This configuration is
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not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Honda Fit CVT (15-19), change Notes as follows: "Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR 52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. Exhaust pipe assy 18300F23SA81, ACG belt (6PK858) 31110FC4YA80. Allow rear sway bar Progress 62.1063. Allow Setrab 50- 119-7612 transmission cooler in addition to OEM." In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows: "Helper springs F&R 0000-04-9926, Spring spacer F&R 0000-04-9925, Rear sway bar 0000-04-2203-RR or 0000-04- 2312, Modified strut bearing plate 0000-04-2204, Crash bolt set 0000-04-2205, Allow rear torque bar Corksport #Mz2-3-070. Cold air intake Corksport Mz2-6-117-31100 and air duct Mz2-6-120-10 are allowed. Exhaust Header (cat delete) HB.EM 60-404- S-SS, HP-MZD001, or Mazda Motorsports PN 0000- 06-2410 permitted. Powerflex PFR19-1511BX2 rear suspension bushings allowed. Allow Mazda part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C-56-110A, DO8C-56- 311, DO7A-56-321." In B-Spec Spec Lines, Mini Cooper Hatchback (R50) MT (02-06), change Notes as follows: "Allow KW: Coilover Kit: Variant 2: Gen 1 or KW equivalent, Vorshlag Mini R50/53 Camber Plates & Perches allowed. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear sway bar Progress #62.0210." In B-Spec Spec Lines, Mini Cooper Hatchback (R50) CVT (02-06), change Notes as follows: "Allow KW: Coilover Kit: Variant 2: Gen 1 or KW equivalent, Vorshlag Mini R50/53 Camber Plates & Perches allowed. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear sway bar Progress #62.0210.CVT equipped cars allow Setrab 50-119-7612 transmission cooler in addition to OEM." In B-Spec Spec Lines, Toyota Yaris Hatchback (07-11), change Notes as follows: "PTR04-52061 TRD Sport shocks permitted. PTR11-52070 TRD spring kit permitted. Speed sensor may be disconnected. Cold air intake K&N 69-8612TFK is allowed. Rear Swaybar PTR11-52071 is allowed. Any Camber plate is permitted."
Applies to Mini Cooper on this page: Trenton Kramer, Thomas Lepper
Applies to Toyota Yaris on this page: Joseph Gersch
T1 Clarification of Request Approval #37273
#37399 from Mark Pfeffer · Rule change · TB 25-02 (2025-02 Fastrack)
unclearT1 E46 M3 Spec Line 1050 allows VAC Motorsports throttle body VAC-TB-S54 on 3.250L engine instead of Dinan.
In T1 Spec Lines, E46 M3 Spec Line # 1050, change Engine Notes as follows: "Dinan Throttle Body #D760-3400 VAC Motorsports #VAC-TB-S54 allowed on the 3.250L."
neutralB-Spec removes Mini Cooper Countryman R60, Cooper Paceman R61, and two Nissan Versa generations effective 2/1/25.
In B-Spec Spec Lines, delete the following spec lines effective 2/1/25 in their entirety: "Mini Cooper Countryman (R60) (11-16)" "Cooper Paceman (R61) (11-16)" "Nissan Versa (07-11)" "Nissan Versa (09-11)"
B-Spec Set expiration date for Nissan Micra Cup Cars (Canadian)
neutralB-Spec Nissan Micra Cup Car spec line expires 7/1/25 unless appeal submitted by 6/30/25.
In B-Spec Spec Lines, Nissan Micra Cup Car, add to Notes the following: "This spec line will expire on 7/1/25 unless an appeal is submitted by 6/30/25."
Cal Club 2025 → Cal Club 2026 2025-02-22 to 2026-02-21
B-Spec Toyota Yaris Hatchback (12-18) rear disc brakes
unclearT1 Mustang Spec 1430 restrictor opens 60mm to 65mm; Spec 1460 weight rises to 3500 lbs, restrictor 70mm; Corvette 1190 restrictor opens 67mm to 70mm; BMW 1090 restrictor narrows 40mm to 35mm; BMW 1100 weight rises to 3350 lbs.
In T1 Spec Lines, change Weight, Restrictor Required and/or Notes as follows: Mustang - Spec Line 1430: Restrictor Required: "60mm 65mm - FPR" Mustang - Spec Line 1460: Weight: "3425 3500" Restrictor Required: "70mm - FPR" Corvette Spec Line 1190: Restrictor Required: "67mm 70mm - Flat Plate"
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BMW - Spec Line 1090: Required Restrictor: "(2) X 40mm 35mm diameter hole inlet restrictor plate required" Chassis Notes: "This spec line is set to expire 12/31/25." BMW - Spec Line 1100: Minimum Weight: "3150 3350”
fasterB-Spec Honda Fit MT intake now limited to three models with 25lb adder; Mazda2 exhaust headers allowed with up to 50lb adder; Mini Coopers FPR increased 1-2 points; Nissan Versa sedans 40lbs lighter, Yaris models 50lbs lighter.
In B-SPEC Spec Lines, change as follows: Honda Fit MT (09-14): "Any Cold Air Intake Package allowed (any manufacturer) Allow Injen Intake SP1512, K&N Intake 69- 1017TTK, or HPS intake 827-102 with a 25lb adder." Mazda2 (10-14): "Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001 allowed with a 50lb adder, or Mazda Motorsports PN 0000- 06-2410 permitted with no weight adder." Mini Cooper (R56) MT (07-10): "44 5 FPR (OE Catalyst)" Mini Cooper (R56) AT (07-10): "46 7 FPR (OE Catalyst)" Mini Cooper Clubman (R55) (07-10): "44 5 FPR (OE Catalyst)"
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Mini Cooper (R56LCI) MT (11-13): "43 4 FPR" Mini Cooper (R56LCI) AT (11-13): "45 6 FPR (OE Catalyst)" Mini Cooper Clubman (R55) (11-15): "42 4 FPR" Nissan Versa Sedan (12-19): "2490 2450" "Allow Injen intake SP1906" Nissan Versa Hatchback (12-19): "2490 2450" "Allow Injen intake SP1906" Toyota Yaris Hatchback (12-18): "2400 2350" Toyota Yaris Sedan (07-12): "2400 2350"
neutralCadillac CT4-V Blackwing added to T1 Spec Line 1115, 3564cc, 3750 lbs minimum weight.
In T1 Spec Lines, classify Cadillac CT4-V Blackwing as follows:
A specification table follows in the original; it is not shown here.
T1 Acceptance of Porsche 981 GT4 Clubsport into T1
#36664 from John Brown · Rule change · TB 25-05 (2025-05 Fastrack)
neutralPorsche 981 GT4 Clubsport added to T1 as spec line 4085, minimum weight 3100 lbs with driver.
In T1-GT4 Spec Lines, classify Porsche 981 GT4 Clubsport as follows:
A specification table follows in the original; it is not shown here.
T1 Request to Restore T1 Honda S2000 to Proper Weights
#37644 from David Mead · Rule change · TB 25-05 (2025-05 Fastrack)
fasterT1 Honda S2000 minimum weight reduced from 2950 lbs to 2900 lbs.
In T1 Spec Lines, Honda S2000, Spec Line 1530, change as follows: Minimum Weight: "2950 2900" Chassis Notes: "This spec line is set to expire as of 12/31/2025 if not represented in Majors competition in 2025."
neutralB-Spec Hyundai Accent Hatchback and Kia Rio Hatchback model year ranges corrected.
In B-Spec Spec Lines, correct model years as follows: "Hyundai Accent Hatchback (12-19 7)" "Kia Rio Hatchback (12-19 5)"
T1 DCT Transmission in E46
#37964 from Matt Spicuzzi · Rule change · TB 25-05 (2025-05 Fastrack)
neutralT1 BMW E46 M3 permits BMW #GS7D36SG aftermarket sequential transmission in SL# 1060 and 1070.
In T1 Spec Lines, BMW E46 M3, add to Chassis Notes the following: SL# 1060: "BMW #GS7D36SG transmission permitted as an aftermarket sequential option." SL# 1070: "BMW #GS7D36SG transmission permitted as an aftermarket sequential option."
slowerB-Spec 07-08 Honda Fit MT minimum weight increases 50 lbs, to 2450.
In B-SPEC Spec Lines, Honda Fit MT (07-08), change as follows: Minimum weight: "2400 2450" Notes: "OEM exhaust manifold required. Primary catalyst may be removed."
B-Spec Add B14 Kit Part # to Honda Fit (07-08) Spec line
fasterT1 Mustang Darkhorse R gets 315 front and rear tyres, loses 500 lbs minimum weight to 3600.
In T1 Spec Lines, Mustang Darkhorse R (Mustang Challenge) Spec Line- 4119, change as follows: Tire size: "305 315 (f) 315(r)" Performance Control: "TBD" Min. Weight with driver (LBS): "10.5 (f) 11 (r) 3600" Chassis Notes: "Must conform to Mustang Challenge Rules. Tires conforming to Mustang Challenge rules are permitted. **This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"
neutralB-Spec and C-Spec shift linkage/cables no longer prohibited from any modification; approved aftermarket bushings now permitted.
In GCR, Section 9.1.10.E.46. change as follows: "Aftermarket shift knobs are allowed and shift levers mat y be bent or extended, however the shift linkage/cables must remain stock and may not be modified in any way. Approved aftermarket shift linkage bushings are permitted."
B-Spec Disabling 2 Pedal Shutdown
#38354 from Eric Yagel · Rule change · TB 25-08 (2025-08 Fastrack)
neutralB-Spec Honda Fit MT 09-14 two pedal shutdown may be disabled by cutting/de-pinning pin 42 BKSW at main ECU connector.
In B-Spec Spec Lines, Honda Fit MT (09-14), add to Notes the following: "Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay."
B-Spec Update Honda Fit MT (07-08) Intake Allowance
slowerB-Spec Honda Fit MT 07-08 intake restricted to Injen SP1511 only, from any Cold Air Intake Package.
In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows: "Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. Any Cold Air Intake Package allowed (any manufacturer). Allow Injen Intake SP1511. This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted. OEM exhaust manifold required. Primary catalyst may be removed."
neutralB-Spec and C-Spec: asterisk removed from public road usage note in rule 9.1.10.D.9.
In GCR, Section 9.1.10.D.9, change as follows: "* If car is used on public roads, these items should be replaced, reactivated, rearmed, etc. when not in competition."
B-Spec Alternate Shift Cable Bushings and Rear Spring Seats
slowerB-Spec Ford Fiesta Hatchback and Sedan gain 55 lbs to 2525; restrictors increase 1 mm.
In B-Spec Spec Lines, Ford Fiesta Hatchback (11-19), change as follows: Weight (lbs): "(Effective 11/1/2025) 2470 2525" Restrictor (mm) & Type: "(Effective 11/1/2025)39 FPR 40 FPR" In B-Spec Spec Lines, Ford Fiesta Sedan (11-19), change as follows: Weight (lbs): "(Effective 11/1/2025) 2470 2525" Restrictor (mm) & Type: "(Effective 11/1/2025)38 FPR 39 FPR"
B-Spec Request to Remove Rear Shock From Spec Line Hyundai Accents/Kia
#39017 from Alex Ratcliffe · Rule change · TB 25-11 (2025-11 Fastrack)
unclearB-Spec Hyundai Accent and Kia Rio remove Bilstein B8 shock 33-187112 rear suspension approval.
In B-Spec Spec Lines, Hyundai Accent Sedan (12-17), change Notes as follows: "Bilstein B8 shock 33- 187112 approved for use in rear suspension." In B-Spec Spec Lines, Kia Rio Sedan (12-17), change Notes as follows: "Bilstein B8 shock 33- 187112 approved for use in rear suspension."
B-Spec Update Honda Fit MT (07-08) Runoffs Eligibility
fasterB-Spec Honda Fit MT (07-08) becomes Runoffs-eligible; previous three-weekend Super Tour requirement removed.
In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows: "Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. Allow Injen Intake SP1511 OEM exhaust manifold required. Primary catalyst may be removed. This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted. (Effective 11/1/2025) Allow Torque Solution Shifter Cable Bushing kit TS-SCB-506."
T1 Keep S2000 Classification
#39344 from David Mead · Rule change · TB 25-12 (2025-12 Fastrack)
unclearUnable to summarize: letter states intent but provides no actual rule changes to S2000 specification.
neutralB-Spec Chevrolet Sonic and Ford Fiesta, Honda Fit notes reorganized from individual allowances to approved parts lists; wording cleanup.
In B-Spec Spec Lines, Chevrolet Sonic Sedan MT (12-19), change Notes as follows: "GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance #ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface Fabrication brake caliper piston SNC-SS. Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-ZZ013, Babyface Fabrication brake caliper piston SNC-SS. Bilstein B14 kit 47-171725 verified compatible." In B-Spec Spec Lines, Chevrolet Sonic Sedan AT (12-19), change Notes as follows: "GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance #ZZ-SNCRSB. For automatic allow Setrab 1-series Part No. FP119M221. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface
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Fabrication brake caliper piston SNC-SS. Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP- ZZ013, Babyface Fabrication brake caliper piston SNC-SS, Setrab transmission cooler 50-119-7612. Bilstein B14 kit 47-171725 verified compatible. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Chevrolet Sonic Hatchback MT (12-19), change Notes as follows: "GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance #ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface Fabrication brake caliper piston SNC-SS. Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-ZZ013, Babyface Fabrication brake caliper piston SNC- SS. World Challenge suspension kit permitted but no longer available. Bilstein B14 kit 47-171725 verified compatible." In B-Spec Spec Lines, Chevrolet Sonic Hatchback AT (12-19), change Notes as follows: "GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance #ZZ-SNCRSB. For automatic allow Setrab 1-series Part No. FP119M221. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface Fabrication brake caliper piston SNC-SS. Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP- ZZ013, Babyface Fabrication brake caliper piston SNC-SS, Setrab transmission cooler 50-119-7612. Bilstein B14 kit #47-171725 verified compatible. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Lines, Ford Fiesta Hatchback (11-19), change Notes as follows: "Suspension kit #M-FR3-FAEB allowed. Rear axle bushing #000-04-2203-RR allowed. Allow rear torque bar Corksport #Mz2-3- 070. Cold air intake K&N 69-3530TS is allowed. Powerflex PFR19-1511BX2 rear suspension bushing allowed. Eibach rear sway bar #35143.312 o r35143.320 is allowed. Mazda front hub D651-33-06 and rear hub D651-26-15XE allowed. Approved parts: Eibach rear sway bar 35143.312, Corksport rear torque bar MZ2-3-070, K&N intake 69-3530TS, Powerflex rear suspension bushing PFR19-1511BX2, Mazda front hub D651-33-06, Mazda rear hub D651-26-15XE." In B-Spec Spec Lines, Ford Fiesta Sedan (11-19), change Notes as follows: "Suspension kit #M-FR3-FAEB allowed. Rear axle bushing #000-04-2203-RR allowed. Allow rear torque bar Corksport #Mz2-3- 070. Cold air intake K&N 69-3530TS is allowed. Powerflex PFR19-1511BX2 rear suspension bushing allowed. Eibach rear sway bar #35143.312 o r35143.320 is allowed. Mazda front hub D651-33-06 and rear hub D651-26-15XE allowed. Approved parts: Eibach rear sway bar 35143.312, Corksport rear torque bar MZ2-3-070, K&N intake 69-3530TS, Powerflex rear suspension bushing PFR19-1511BX2, Mazda front hub D651-33-06, Mazda rear hub D651-26-15XE." In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows: "Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. Allow Injen Intake SP1511 OEM exhaust manifold required. Primary catalyst may be removed. Allow Torque Solution Shifter Cable Bushing kit TS-SCB-506. Approved parts: Progress rear sway bar 62.1060, Injen intake SP1511, Torque Solution shifter cable bushings TS-SCB-506. Bilstein B14 kit 47172401 verified compatible. OEM exhaust manifold required. Primary catalyst may be removed." In B-Spec Spec Lines, Honda Fit AT (07-08), change Notes as follows: "Bilstein B14 kit 47172401 verified compatible. Any aftermarket header allowed. Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). Approved parts: Progress rear sway bar 62.1060, Injen intake SP1511, Setrab transmission cooler 50-119-7612, any aftermarket header. Bilstein B14 kit 47172401 verified compatible." In B-Spec Spec Lines, Honda Fit MT (09-14), change Notes as follows: "Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress # 62.1061 Allow Injen Intake SP1512, K&N Intake 69-1017TTK, or HPS intake 827-102 with a 25lb adder. Allow Acuity Shifter Base Bushing Kit 1954 Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay. Approved parts: Progress rear sway bar #62.1061, Injen Intake SP1512, K&N Intake 69-1017TTK, or Weapon R Intake 301-166-301, Acuity shifter bushing kit 1954. World Challenge suspension kit permitted but no longer available. Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay." In B-Spec Spec Lines, Honda Fit AT (09-14), change Notes as follows: "Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress # 62.1061. Allow Setrab 50-119-7612 transmission cooler in addition to OEM. Any aftermarket exhaust/header allowed. Any Cold Air Intake Package allowed (any manufacturer). Weapon R Intake 301-166-301. Approved parts: Progress rear sway bar 62.1061, Injen Intake SP1512, any aftermarket header, Setrab transmission cooler 50-119-7612. Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay." In B-Spec Spec Lines, Honda Fit MT (15-19), change Notes as follows: "Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR 52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. Allow rear sway bar Progress 62.1063. Approved parts: Progress rear sway bar 62.1063." In B-Spec Spec Lines, Honda Fit CVT (15-19), change Notes as follows: "Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR 52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. Allow rear sway bar Progress 62.1063. Allow Setrab 50-119- 7612 transmission cooler in addition to OEM. Approved parts: Progress rear sway bar 62.1063, Setrab transmission cooler 50- 119-7612. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Hyundai Accent Hatchback (12-17), change Notes as follows: "Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-ASTRear; KSJ03-20-003 Rear Upper Spring Perch Delrin; AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33- 187112 approved for use in rear suspension. Bilstein B14 kit #47167490 front shocks verified compatible. Allow BabyFace Fabrication sump extension #BF-HYU-PAN Vehicles equipped with rear drum brakes subtract 25 lb. Approved parts: Evilla Motorsports rear torque bar KR-B1, BabyFace Fabrication sump extension BF-HYU-PAN. Vehicles equipped with rear drum brakes subtract 25 lbs." In B-Spec Spec Lines, Hyundai Accent Sedan (12-17), change Notes as follows: "Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin; AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33-187112 approved for use in rear suspension. Approved parts: Evilla Motorsports rear torque bar KR-B1, BabyFace Fabrication sump extension BF-HYU- PAN. Vehicles equipped with rear drum brakes subtract 25 lbs." In B-Spec Spec Lines, Kia Rio Hatchback (12-15), change Notes as follows: "Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin; AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B14 kit #47167490 front shocks verified compatible. Allow BabyFace Fabrication sump extension #BF-HYU-PAN Bilstein B8 shock 33-187112 approved for use in rear suspension. Approved parts: Evilla Motorsports rear torque bar KR-B1, BabyFace Fabrication sump extension BF-HYU-PAN. World Challenge suspension kit permitted but no longer available." In B-Spec Spec Lines, Kia Rio Sedan (12-17), change Notes as follows: "Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin; AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33-187112 approved for use in rear suspension. Approved parts: Evilla Motorsports rear torque bar #KR-B1, BabyFace Fabrication sump extension BF-HYU- PAN." In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows: "Rear sway bar 0000-04-2203-RR or 0000-04-2312, Allow rear torque bar Corksport #Mz2- 3-070. Cold air intake Corksport Mz2- 6-117-31100 and air duct Mz2-6-120-10 are allowed. Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001, allowed with a 50lb adder or Mazda Motorsports PN 0000-06-2410 with no weight adder permitted. Powerflex PFR19- 1511BX2 rear suspension bushings allowed. Allow Mazda part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C- 56-110A, DO8C-56-311, DO7A-56-321. Approved parts: Mazda Motorsports rear sway bar 0000-04-2203-RR, Eibach/Mazda Motorsports rear sway bar 35143.312/0000-04-2312, Corksport rear torque bar #MZ2- 3-070, Corksport intake MZ2-6-117- 31100, Corksport air duct MZ2-6-120-10, Powerflex PFR19-1511BX2 rear suspension bushings, Mazda Motorsports radiator 0000-01-2501-CR, Mazda Motorsports header 0000-06-2410, Mazda undertray/side shields DO8C-56-110A, DO8C-56-311, DO7A- 56-321." In B-Spec Spec Lines, Mini Cooper Hatchback (R50) MT (02-06), change Notes as follows: "Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear sway bar Progress #62.0210. Approved parts: Progress rear sway bar 62.0210, Mevotech leteral link CMK100003. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches." In B-Spec Spec Lines, Mini Cooper Hatchback (R50) CVT (02-06), change Notes as follows: "Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear sway bar Progress #62.0210.CVT equipped cars allow Setrab 50-119-7612 transmission cooler in addition to OEM. Approved parts: Progress rear sway bar 62.0210, Mevotech leteral link CMK100003, Setrab transmission cooler 50-119- 7612. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches." In B-Spec Spec Lines, Mini Cooper (R56) MT (07-10), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10- 2101-2S permitted. Approved parts: Progress rear sway bar 62.0210, OBX header 10-2101-2S. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. In B-Spec Spec Lines, Mini Cooper (R56) AT (07-10), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10-2101-2S permitted. Automatic equipped cars only allow Setrab 50-119-7612 transmission cooler in addition to OEM. Approved parts: Progress rear sway bar 62.0210, Setrab transmission cooler 50-119-7612. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Mini Cooper Clubman (R55) (07-10), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10- 2101-2S permitted. Approved parts: Progress rear sway bar 62.0210, OBX header 10-2101-2S. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. In B-Spec Spec Lines, Mini Cooper (R56LCI) MT (11-13), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. Approved parts: Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches." In B-Spec Spec Lines, Mini Cooper (R56LCI) AT (11-13), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10- 2101-2S permitted with 41mm FPR. Automatic equipped cars only allow Setrab 50- 119-7612 transmission cooler in addition to OEM. Approved parts: Progress rear sway bar 62.0210, Setrab transmission cooler 50-119-7612. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Mini Cooper Clubman (R55) (11-15), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. Approved parts: Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches." In B-Spec Spec Lines, Mini Cooper Coupe (R58) (12-15), change Notes as follows: "Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. Approved parts: Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches." In B-Spec Spec Lines, Nissan Versa Sedan (2012-2019), change Notes as follows: "Hardrace HR-Q0146 19mm rear sway bar permitted. Allow Injen intake SP1906. Approved parts: Hardrace rear sway bar HR- Q0146, Injen intake SP1906." In B-Spec Spec Lines, Nissan Versa Hatchback (2012-2019), change Notes as follows: "Hardrace HR-Q0146 19mm rear sway bar permitted. Allow Injen intake SP1906. Approved parts: Hardrace rear sway bar HR- Q0146, Injen intake SP1906." In B-Spec Spec Lines, Nissan Versa (2020-), change Notes as follows: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change Notes as follows: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted. Allow ST Suspension Kit 1327502. Approved parts: ST suspension kit 1327502. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted." In B-Spec Spec Lines, Toyota Yaris Hatchback (07-11), change Notes as follows: "Speed sensor may be disconnected. Cold air intake K&N 69-8612TFK is allowed. Rear Swaybar PTR11-52071 is allowed. Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed sensor may be disconnected." In B-Spec Spec Lines, Toyota Yaris Hatchback (12-18), change Notes as follows: "Rear Swaybar PTR11-52071 is allowed. Cold air intake K&N 69-8612TFK is allowed. Speed sensor may be disconnected. Vehicles equipped with rear disc brakes add 25 lb. Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed sensor may be disconnected. Vehicles equipped with rear disc brakes add 25 lbs." In B-Spec Spec Lines, Toyota Yaris Sedan (07-12), change Notes as follows: "Rear Swaybar PTR11-52071 is allowed. Cold air intake K&N 69-8612TFK is allowed. Speed sensor may be disconnected. Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed sensor may be disconnected."
Applies to Mini Cooper on this page: Trenton Kramer, Thomas Lepper
Applies to Toyota Yaris on this page: Joseph Gersch
unclearB-Spec: Sonic restrictors removed, Fit MT +25 lbs to 2550, Fit CVT restrictor removed, Mini Coopers restrictors increased 2-4 mm, Versa sedans -25 lbs to 2425, Versa/IA restrictors removed.
In B-Spec Spec Lines, change as follows: Chevrolet Sonic Sedan AT (12-19): Restrictor (mm) & Type: "35 FPR" Chevrolet Sonic Hatchback AT (12-19): Restrictor (mm) & Type: "35 FPR" Honda Fit MT (09-14): Weight (lbs): "2525 2550" Honda Fit CVT (15-19):
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Restrictor (mm) & Type: "33 FPR" Mini Cooper Hatchback (R50) MT (02-06): Weight (lbs): "2545 2525" Mini Cooper (R56) MT (07-10): Restrictor (mm) & Type: "FPR 45 47 OE Catalyst" Mini Cooper (R56) AT (07-10): Restrictor (mm) & Type: "47 FPR (OE Catalyst) 42 FPR (Header)" Mini Cooper Clubman (R55) (07-10): Restrictor (mm) & Type: "FPR 45 47 OE Catalyst" Mini Cooper (R56LCI) MT (11-13): Restrictor (mm) & Type: "FPR 44 46" Mini Cooper (R56LCI) AT (11-13): Restrictor (mm) & Type: "46 FPR (OE Catalyst) 41 FPR (Header)" Mini Cooper Clubman (R55) (11-15): Restrictor (mm) & Type: "FPR 44 46" Nissan Versa Sedan (2012-2019): Min weight: "2450 2425" Nissan Versa Hatchback (2012-2019): Min weight: "2450 2425" Nissan Versa (2020-): Restrictor (mm) & Type: "38 FPR" Toyota/Scion IA Sedan (16-20): Restrictor (mm) & Type: "38 FPR"
In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows: "Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001, allowed with a 50lb adder or Mazda Motorsports PN 0000-06- 2410 with no weight adder permitted.”
neutralC-Spec rear sway bars approved for Chevrolet Cruze, Dodge Dart, Ford Focus, Honda Civic, Mazda3i, Toyota Corolla with specified part numbers.
In C-Spec Spec Lines, change Notes as follows: Chevrolet Cruze (2010-16): "Allow BC Racing Q-06-BR suspension kit or RedShift Q-06-CSPEC. Allow Babyface Fabrication brake caliper piston SNC- SS. Approved parts: BC Racing Q-06-BR or RedShift Q-06-CSPEC suspension kit, Babyface Fabrication brake caliper piston SNC- SS, ZZ Performance ZZ-SNCRSB or Whiteline BHR93 rear sway bar. Dodge Dart (2014-16): "Allow BC Racing or RedShift Z-06-CSPEC kit. Approved parts: BC Racing Z-06-BR or RedShift Z-06-CSPEC kit, Progress rear sway bar 62.0606."
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Ford Focus Hatchback/Sedan (2011-18): "Allow BC Racing E-21-BR or RedShift E-21-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms. Approved parts: BC Racing E-21-BR or RedShift E-21-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar." Honda Civic Coupe/Sedan (2012-15): "Allow BC Racing A-58-BR or RedShift A-18-CSPEC kit. Approved parts: BC Racing A-58-BR or RedShift A-18-CSPEC suspension kit, Progress 62.1026 or Megan Racing MRS-HA-0791 rear sway bar." Honda Civic Coupe/Sedan (2006-11): "Allow BC Racing A-18-BR or RedShift A-58-CSPEC kit. Approved parts: BC Racing A-58-BR or RedShift A-18-CSPEC suspension kit, Progress 62.1026 or Megan Racing MRS-HA-0791 rear sway bar." Mazda3i SKYACTIV (2012-13): "Allow BC Racing N-03-BR or RedShift N-03-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms. Approved parts: BC Racing N-03-BR or RedShift N-03-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar." Mazda 3i MZR (2010-13): "Allow BC Racing N-03-BR or RedShift N-03-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms. Approved parts: BC Racing N-03-BR or RedShift N-03-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar." Mazda 3i (2004-09): "Allow Corksport Axl-3-318-Black adjustable rear camber arms. Approved parts: BC Racing N-03-BR or RedShift N-03-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar." Toyota Corolla (2007-12): "Allow BC Racing C-02-BR or RedShift C-02-CSPEC kit. Approved parts: BC Racing C-02-BR or RedShift C-02-CSPEC suspension kit, TRD PTR11-12080 or Megan Racing MRS-TY-1710 rear sway bar." Toyota Corolla (2013-18): "Allow BC Racing C-02-BR or RedShift C-02-CSPEC kit. Approved parts: BC Racing C-02-BR or RedShift C-02-CSPEC suspension kit, TRD PTR11-12080 or Megan Racing MRS-TY-1710 rear sway bar."
T1 LS1 into Corvette C6 Spec Line Request
#39716 from Danny Kellermeyerhttps://crbscca.com/secu · Rule change · TB 26-02 (2026-02 Fastrack)
In T1 Spec Lines, reinstate Spec Line # 1139, Chevrolet Corvette C6 (05-13) Includes Z51, GrandSport, Z06, Z06 Carbon, as follows: Max Displ: "LS1, LS6 OEM" Min Weight: "3200" Required Restrictor: "70mm"
What the rules allowed changed as listed; this does not say what any particular car ran.