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 session is left out because the timing does not look like full laps: Cal Club 2023 Qualifying #2.
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
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
SCCA Ent FE2
FE2
5
1:39.265Jon McClintock
1:39.265Jon McClintock
1:39.712Paul Marino
156.6Paul Marino
27.234Paul Marino
28.582Paul Marino
43.028Jon McClintock
Porsche 986 Boxster
T3
1
1:51.337Reto Eberle
128.4Reto Eberle
29.898Reto Eberle
33.530Reto Eberle
54.812Reto Eberle
Mazda RX-7
FP
1
1:55.440Michael Lewis
1:56.121Michael Lewis
1:55.440Michael Lewis
128.8Michael Lewis
31.255Michael Lewis
33.299Michael Lewis
50.847Michael Lewis
Ford Mustang
T3
5
1:55.675Scotty B White
1:55.965Roger Eagleton
1:55.675Scotty B White
137.2Scotty B White
31.598Scotty B White
33.496Scotty B White
50.029Scotty B White
Nissan Sentra SE-R
FP
1
1:55.722Brian Linn
1:57.239Brian Linn
1:55.722Brian Linn
128.3Brian Linn
31.416Brian Linn
33.400Brian Linn
50.478Brian Linn
Volkswagen GTI
FP
1
1:56.016Tim Linerud
2:06.156Tim Linerud
93.4Tim Linerud
33.738Tim Linerud
35.656Tim Linerud
55.246Tim Linerud
Nissan 370Z
T3
1
1:56.241Gamaliel Aguilar-Gamez
1:56.241Gamaliel Aguilar-Gamez
1:56.899Gamaliel Aguilar-Gamez
131.8Gamaliel Aguilar-Gamez
31.456Gamaliel Aguilar-Gamez
33.615Gamaliel Aguilar-Gamez
50.788Gamaliel Aguilar-Gamez
Mazda MIata
FP
1
1:56.276Steven Powers
1:57.032Steven Powers
1:56.276Steven Powers
134.3Steven Powers
31.570Steven Powers
33.696Steven Powers
50.716Steven Powers
Fiat X 1/9
FP
1
1:59.128Daniel Snow
2:00.398Daniel Snow
1:59.128Daniel Snow
137.8Daniel Snow
31.878Daniel Snow
34.053Daniel Snow
52.221Daniel Snow
BMW Z4M
T3
1
1:59.315J. David Orem
2:00.000J. David Orem
1:59.698J. David Orem
128.1J. David Orem
32.480J. David Orem
34.645J. David Orem
51.770J. David Orem
BMW 330ci
T3
1
1:59.844Ron Tanemura
1:59.844Ron Tanemura
1:59.971Ron Tanemura
136.3Ron Tanemura
32.188Ron Tanemura
34.401Ron Tanemura
52.107Ron Tanemura
Porsche 914-4
FP
1
2:15.932Garey Raymond
2:21.274Garey Raymond
2:15.932Garey Raymond
84.8Garey Raymond
37.237Garey Raymond
39.091Garey Raymond
59.604Garey Raymond
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
T3 T3 Boxster S GCR request
#33687 from Kelly Peebles · Rule change · TB 23-03 (2023-03 Fastrack)
neutralT3 Porsche Spec Boxster tire rule updates to current SPB rules or any 245 DOT tire.
In T3 Spec Lines, Porsche Spec Boxster, change Notes as follows: "Must conform to all SPB rules in the PCA rulebook. Each competitor shall have available definitive current documentation of the PCA rules. Tires must meet 2016 Current SPB rules or any 245 DOT tire permitted. No other touring allowances permitted."
Applies to Porsche 986 Boxster on this page: Reto Eberle
T3 OEM VW Steering Spindle Replacements 06-10 VW GTI and Jetta
neutralT3 06-10 VW GTI and Jetta permitted to use OEM VW knuckles 3C0407253F and 3C0407254F.
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), add to Notes the following: "VW knuckles 3C0407253F (L) and 3C0407254F (R) permitted."
T3 BMW 320I intercooler
#33762 from Chi Ho · Rule change · TB 23-03 (2023-03 Fastrack)
fasterT3 BMW 320I now permitted to use aftermarket intercooler.
In T3 Spec Lines, BMW- 320I, add to Notes the following: "Aftermarket intercooler permitted."
T3 Request to all ECS Tuning inner-cooler to 06-10 VW GTI spec
#33769 from Allen Briere · Rule change · TB 23-04 (2023-04 Fastrack)
neutralT3 06-10 VW GTI, Jetta GLI allowed to use ECS Tuning performance alternative intercooler.
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), add to notes as follows: "Performance alternative intercooler allowed." 33888
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.
In FP Spec Lines, classify Toyota Celica (78-80) as follows:
A specification table follows in the original; it is not shown here.
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."
T3 S550 Reconcile With S197
#34093 from Scotty B White · Rule change · TB 23-06 (2023-06 Fastrack)
fasterT3 Ford Mustang V6 (15-17) weight drops to 3400 lbs, brake penalties reduced to +100 lbs and +50 lbs.
In T3 Spec Lines, Ford Mustang V6 (15-17), change as follows: Final Drive: "3.31 or 3.55 w/ auto" Weight: "3475 3400" Notes: "58mm flat plate restrictor required. Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. Track package allowed. Optional: 6 speed automatic transmission (with paddle shifters). Sway bars allowed up to 35 38mm (F) 25 28mm (R). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with +175lb+100lb penalty, or optional 2-piece rotor 355mmmax Brembo brake kit #M-2300-S allowed with +100lb+50lb penalty."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
neutralFord Fiesta HP and Chevrolet Sonic FP model year ranges extended from 2016 to 2019.
In HP, adjust model years of the "Ford Fiesta (11-16)" spec line as follows: "Ford Fiesta (11-16 9)" In FP, adjust model years of the "Chevrolet Sonic (12-16)" spec line as follows: "Chevrolet Sonic (12-16 9)"
T3 2016+ Camaro 1LE - Max Wheel Diameter
#34003 from Nicolas Hammann · Rule change · TB 23-06 (2023-05 Fastrack)
fasterT3 Camaro V6 1LE and LT-I4 Turbo 1LE max wheel diameter increases from 18 to 20 inches.
In T3 Spec Lines, Chevrolet Camaro V6 1LE (2016-), change Max. Wheel Size as follows: "18 x 10 20 x 10" In T3 Spec Lines, Chevrolet Camaro LT-I4 Turbo 1LE (2016-), change Max. Wheel Size as follows: "18 x 10 20 x 10"
FP ITC to FP?
#34286 from David Snow · Rule change · TB 23-06 (2023-07 Fastrack)
neutralHP Volkswagen Rabbit Cabriolet 1780 removed; Rabbit 1588 and 1715 reclassified with engine sizes and year ranges specified.
In HP Spec Lines, Volkswagen Rabbit Cabriolet 1780, delete in its entirely: In HP, Spec Lines, Volkswagen Rabbit, change Title as follows: “Volkswagen Rabbit 1588 (includes Cabriolet / convertible)” “Volkswagen Rabbit 1715 (81-84) (excl. conv.)” “Volkswagen Rabbit GTI 1780 (83-84)”
FP Correct Intake Valve Size on 1500cc Midget/Spitfire
#34419 from Production Committee · Rule change · TB 23-06 (2023-05 Fastrack)
neutralFP and HP Sprite, Midget, and Spitfire 1500 intake valve size corrected to 36.6/(1.44).
In FP Spec Lines, Austin-Healey Sprite Mk. I, II,III, IV MG Midget Mk I,II, III, IV & 1500, change Intake Valve Size as follows: "(I) 36.65.3/(1.44)" In FP Spec Lines, Triumph Spitfire Mk. IV & 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire Mk. III & IV 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)"
T3 2022 Toyota GR Cup for T3
#34448 from Club Racing Board · Rule change · TB 23-06 (2023-05 Fastrack)
neutralT3 removes Toyota 2022-up GR Cup and 2022-up GR86 Cup entirely from Spec Lines.
In T3 Spec Lines, remove Toyota 2022-up GR Cup in its entirety. In T3 Spec Lines, remove Toyota 2022-up GR86 Cup in its entirety.
T3 Rules Clarification for Mazda RX8 Spec Line
#34395 from Colin Koehler · Rule change · TB 23-08 (2023-08 Fastrack)
neutralT3 Mazda RX-8 removes transmission/final drive pairing requirement; T4 removes same requirement, adds Mazdaspeed radiator and coil spring kit.
In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows: "Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3 transmission must be paired with the listed alternate final drive. Front sway bar permitted 32mm MAX rear sway bar 19 MAX, Front springs max 750, 500 rear. Cold air intake permitted. Header permitted. Aftermarket flywheel and single disc clutch permitted with no weight penalty." In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows: "Mazdaspeed radiator #0000-01-8501 allowed. Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3 transmission must be paired with the listed alternate final drive. Mazdaspeed coil spring kit #QSEA-34-01Z allowed. 60mm flat plate restrictor required. OE Rear spoiler allowed #F151-V4-920F. OE front air dam allowed #F151-V4-900f-BB. Springs Allowed:
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(F) Mazda Motorsports- 0000- 04-9700-08 or Eibach- 0800.250.0700 (R) Mazda Motorsports- 0000-04-9400-07 or Eibach 0700.250.0400, and helper 0000-04-9926 allowed. Alternate sway bars allowed max 32mm (f) 19mm (r)."
T3 2012-2013 Golf R - added to T3
#34413 from Allen Briere · Rule change · TB 23-08 (2023-05 Fastrack)
neutral2012-2013 Volkswagen Golf R added to T3 as new entry with 1984cc engine, 3080 lbs DSG/3050 STD, 36mm turbo inlet restrictor.
In T3 Spec Lines, Volkswagen Golf R (12-13), classify as follows:
A specification table follows in the original; it is not shown here.
T3 rule book corrections
#34437 from Chi Ho · Rule change · TB 23-08 (2023-08 Fastrack)
fasterT3 BMW 320i (14-15) gains aftermarket intercooler permission; T4 loses it.
In T3 Spec Lines, BMW 320i (14-15), add to Notes the following: "Aftermarket intercooler permitted." In T4 Spec Lines, BMW 320i (14-15), remove from Notes the following: "Aftermarket intercooler permitted."
T3 Allowing 255 Tire Width for Nissan 350z
#34471 from Patrick price · Rule change · TB 23-08 (2023-08 Fastrack)
fasterT3 Nissan 350Z and 370Z maximum tire width increases from 245 to 255.
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), change Tire Size (max) as follows: "245 255" In T3 Spec Lines, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), change Tire Size (max) as follows: "245 255"
T3 Ride Height Correction for the T3 Solstice.
#34615 from Joe Aquilante · Rule change · TB 23-08 (2023-08 Fastrack)
neutralT3 Pontiac Solstice GXP minimum ride height set to 3 inches.
In T2 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following: "Minimum ride height is 3 inches." In T3 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following: "Minimum ride height is 3 inches."
T3 2006-10 Volkswagen GTI - Weight Reduction request and KO4 Turbo
#34414 from Allen Briere · Rule change · TB 23-12 (2023-12 Fastrack)
fasterT3 Volkswagen GTI 06-10 turbo inlet restrictor increases from 36mm to 37mm.
In T3 Spec Lines, Volkswagen GTI, Jetta GLI (06-10), change Notes as follows: "Turbo Inlet Restrictor 36mm 37mm"
fasterT3 Porsche Cayman (09-12) and (13-16) gear and final drive ratios adjusted; 09-12 6-SPD final drive 3.88 to 3.875, PDK 3.909 to 3.250; 13-16 6-SPD final drive 3.89 unchanged, PDK 3.91 to 3.250.
In T3 Spec Lines, change gear ratios and final drive ratios as follows:
A specification table follows in the original; it is not shown here.
FP Porsche 944/924S Rule Change Request
#35002 from Adam Achepohl · Rule change · TB 23-12 (2023-12 Fastrack)
neutralEP Porsche 944/924S combines 2.5L and 2.7L variants with new weights: 2250–2415 lbs depending on engine and year.
In EP Spec Lines, delete the Porsche 944/924S 2.5L (2V) (83-88) spec line entirely, and create a new spec line for Porsche 944/924S 2.5L(2V) 2.7L(2V) (83-89) as follows:
A specification table follows in the original; it is not shown here.
FP FP and HP Toyota Corolla
#35030 from Keith Church · Rule change · TB 23-12 (2023-12 Fastrack)
fasterFP Toyota Corolla 2TC loses 43 lbs to 1810; HP Corolla loses 50–52 lbs to 1910–2006.
In FP Spec Lines, Toyota Corolla 2TC (71-74), change weight as follows: "1853 1810" In HP Spec Lines, Toyota Corolla (71-74), change weight as follows: “1960 1910 * 2009 1958 ** 2058 2006”
T3 TIR location requirement in VW Golf Spec lines
#35048 from Allen Briere · Rule change · TB 23-12 (2023-12 Fastrack)
neutralT3 VW Golf GTI and Golf R TIR location clarified to maximum 60mm from impeller.
In T3 Spec Lines, Volkswagen GTI (2013), change Notes as follows: "Rear sway bar max 42 mm (body and suspension mounting same as OEM), Any spring up to a maximum spring rate of 800 pounds may be used. Turbo Inlet Restrictor 36mm required max 60mm from impeller. R32 model brake package allowed. Verkline WAS-048 camber arms permitted." In T3 Spec Lines, Volkswagen Golf R (15-16) change Notes as follows: "Max spring rate 800 F&R, Max swaybar 38mm F, 42mm R. 36mm TIR required max 60mm from impeller."
FP Triumph GT6 Adjustments
#35054 from ANTHONY PARKER · Rule change · TB 23-12 (2023-12 Fastrack)
fasterEP Triumph GT6 minimum weight reduced to 1800 lbs.
In EP Spec Lines, Triumph GT6, change weight as follows: "1830 1800"
P2 Correct Table 1 for Engine Date Range Specifications
#35182 from Formula/Sports Racing Committee · Rule change · TB 23-12 (2023-09 Fastrack)
neutralP2 Table 1 corrects engine date ranges and brand specifications for Stock and Modified engines across multiple car models.
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.
FP FP data
#35060 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
slowerFP Acura Integra LS and Honda Del Sol VTEC minimum weights increase 25–78 lbs across all configurations.
In FP Spec Line, Acura Integra LS (94-01), change weight as follows: "2235 2260 *2291 2317 **2347 2373" In FP Spec Line, Honda Del Sol VTEC (94-97), change weight as follows: "2190 2265 *2245 2322 **2300 2378"
FP Request to Review Z3 2.5 Spec Line
#35073 from Tim Schreyer · Rule change · TB 24-01 (2024-01 Fastrack)
slowerEP BMW Z3 2.5L weight increases to 2500 lbs, 2563 lbs with turbo, 2625 lbs with supercharger.
In EP spec line, BMW Z3 2.5L, change weight as follows: "2450 2500 *2511 2563 **2573 2625"
T3 T3 Solstice Brakes
#35106 from Joe Aquilante · Rule change · TB 24-01 (2024-01 Fastrack)
slowerT3 Pontiac Solstice GXP front brake rotor increases from 296 to 355 mm vented.
In T3 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), change Brakes as follows: "(F) 355 296 Vented (R) 270 Solid"
slowerT3 Nissan 350Z DE motor loses 75 lbs to 3125; HR motor gains 47mm restrictors, up from 44mm.
In T3 Spec Lines, Nissan 350ZTrack/ Touring/Standard/Nismo(03-08), change as follows: Weight: "DE Motor: 3200 3125 HR Motor: 3275" Notes: "HR Engine: Two 44mm 47 mm flat plate restrictors required. DE engine: Cold air intake permitted."
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.
T3 Requested Update of Model Years of 370Z
#35231 from Richard Kulach · Rule change · TB 24-01 (2024-01 Fastrack)
neutralT3 Nissan 370Z model years expanded to include NISMO Edition through 2022.
In T3 Spec Lines, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), change model as follows: "Nissan 370Z (09-16) / 370Z NISMO Edition (09-13) ,incl. Nismo (2009-2022)"
T3 Update Request for 2010 Mustang GT 4.6
#35234 from David Woodle · Rule change · TB 24-01 (2024-01 Fastrack)
neutralT3 2010 Mustang GT 4.6 now allows 2013-14 GT style front/rear fascia, hood, and associated assemblies.
In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), add to Notes the following: "2010 models may update the front and rear fascia, hood and associated assemblies to the 2013-14 GT style."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
FP Corrections to Honda Spec Lines in FP
#35250 from Jonathan Spiegel · Rule change · TB 24-01 (2024-01 Fastrack)
unclearFP Honda throttle body specs corrected: Civic 1.5 to 42", Si to 55", CRX variants adjusted.
In FP Spec Lines, change Fuel Injected Equipped Throttle Body Inside Diameter as follows: Acura Integra GSR (92-93): "58" Honda Civic 1.5 (88-91): "NA 42" Honda Civic EX (90-91): "55" Honda Civic Si (88-91): “42 55” Honda CRX 1.5 (88-91): “33 (primary) 42 (secondary) 42” Honda CRX / CRX Si (84-87): ”42 33 (primary) 42 (secondary)” Honda CRX Si (88-91): ”NA 55”
FP Miata Alternate Head
#35253 from Don Tucker · Rule change · TB 24-01 (2024-01 Fastrack)
fasterEP Mazda MX-5 1.8L 1990-97 minimum weight drops to 2150 lbs; 1994-97 variants to 2000, 2050, 2100 lbs respectively.
In EP Spec Lines, Mazda MX-5 /Miata 1.8L (90-97), change weight as follows: "2200 2150" Mazda MX-5 /Miata (94-97) "2035 2000 *2086 2050 **2137 2100"
FP Triumph GT6 Adjustments
#35255 from Anthony Parker · Rule change · TB 24-01 (2024-01 Fastrack)
In EP spec line, Triumph GT6, make the following change in the Notes section: "Two (2) 1.75” auto-type carburetors @ 1970 40 lbs. Three (3) Weber 40 DCOE on IR manifold with 28mm chokes @ 1990 lbs. Laycock overdrive, May use 5 speed gearbox w/o overdrive. Three (3) Weber 40mm DCOE w/28mm venturi on individual runner manifold @ 2020 lb."
T3 SE46 Continued Parity/ Cold Air Intake request
#35267 from Christopher DeShong · Rule change · TB 24-01 (2024-01 Fastrack)
fasterT3 BMW SpecE46 minimum weight drops 50 lbs to 2850.
In T3 Spec Lines, BMW SpecE46, change as follows: Min Weight: "2900 2850" Notes: "Must conform to all SpecE46 rules Version 2.10. SpecE46 spec tire permitted or any DOT permitted up to 225 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. SE46 HP limit does not apply."
FP Honda S2000 throttle body
#35272 from Aaron Johnson · Rule change · TB 24-01 (2024-01 Fastrack)
fasterEP Honda S2000 fuel injected throttle body inside diameter increases from 62mm to 64mm.
In EP spec line, Honda S2000, make the following changes to its spec line: Fuel Injected Equipped Throttle Body Inside Diameter: "62 64" Notes: "Comp. Ratio limited to 12.0:1. Valve lift limited to .500”. An adaptor plate can be used to mount the 62mm throttle body from '00-05 to the '06-09 intake manifold. The adaptor plate can be no more than 1.25" thick, and its bore must not exceed the "Fuel Injected Equipped Throttle Body Inside Diameter" maximum spec of 64mm."
T3 Please help the Subaru STIs.
#35278 from Jared Lendrum · Rule change · TB 24-01 (2024-01 Fastrack)
slowerT3 Subaru STI (15-20) minimum weight increases 100 lbs to 3450; all three STI variants get larger turbo inlet restrictors.
In T3 Spec Lines, Subaru WRX STI (03-07), change Notes as follows: "Killer B intake pipe #EJTI and coupler permitted. 37mm 39mm TIR required." In T3 Spec Lines, Subaru STI (15-20), change as follows: Min Weight: "3350 3450" Notes: "Killer B intake pipe #EJTI and coupler permitted. 37mm 40mm TIR required." In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Notes as follows: "Killer B intake pipe #EJTI and coupler permitted. 37mm 39mm Turbo inlet restrictor required."
FP Correction within Triumph TR8 Spec Line
#35315 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
neutralEP Triumph TR8 dry sump allowance moved from carburetor line to notes section.
In EP spec line, Triumph TR8 (78-81), move the "Dry sump allowed" wording to the appropriate location as follows: Carburetor. No. & Type: “Zenith Stromberg carbs or fuel injection. Dry sump is allowed.” Notes: “Comp. Ratio limited to 12.0:1, Valve lift limited to .500”. Dry sump is allowed.”
FP Correction to EP 924S/944 Spec Line
#35317 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
neutralEP Porsche 944/924S 2.5L and 2.7L weight minimums corrected: 2479cc to 2306/2363 lbs, 2681cc to 2358/2415 lbs.
In EP spec line, Porsche 944/924S 2.5L (2V) / 2.7L (2V) (83-89), change Weight as follows:
A specification table follows in the original; it is not shown here.
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."
T3 15-18 Golf R Alignment with Existing GTI and R Speclines
In GCR, Section 9.1.9.2.D.1.g.3., change as follows: "Batteries may be replaced provided the replacement is capable of starting the car. Batteries may not be relocated unless noted on the spec line. Batteries must be adequately secured. Battery labeling must conform to 9.3.35.D. with those of an alternate manufacturer, provided they are of similar amp-hour capacity, size and within 10% of OEM weight."
T3 Open Strut Tower Brace Options for Ford Mustang V6 (11-14)
#35322 from James Stacey · Rule change · TB 24-02 (2024-02 Fastrack)
neutralT3 Ford Mustang V6 (11-14) gains approved strut tower brace and sway bar kit options.
In T3 Spec Line, Ford Mustang V6 (2011-2014), add to Notes as follows: "Strut Tower Brace #M20201-F, Sway bar Kit #M-5490 or #AR3Z-16A200-A,"
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
neutralT4 now permits C-Spec cars to compete alongside B-Spec cars.
In GCR, Section 9.1.9.2., 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-T4 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T4 car and conform to their specification line allowances as classified. Cars conforming to C-Spec rules are permitted to compete in Touring 4."
neutralT2-T4 spec lines for 46 cars expire 12/31/24; appeal required to continue.
In T2-T4 Spec Lines, add **This Spec line will expire 12/31/24, Please submit to appeal** to Notes to the following Spec Lines: T2: Acura TL SHAWD (10-13) Audi S4 (12-14) Audi S5 (13-14) Audi TT RS (2018-) Cadillac ATS-V (16-17)
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Cadillac CTS-V (06-07) Chevrolet Camaro SS (98-02) Honda Civic (2017-) Saturn Sky / Convertible (07-09) Subaru Impreza WRX STi (03-07) Subaru Impreza WRX STi (08-11) T3: Audi S4 (10-11) Audi S4 (12-14) Audi TTS Coupe (10-11) Cadillac ATS (2015) Chevrolet Cobalt (05-07) Dodge SRT-4 (03-05) Ford Fiesta ST (2014-) Hyundai Genesis Coupe (2010-) Hyundai Veloster Turbo (18-21) Mazda RX-8 Base/R3/Sport/ GT (04-12) Mini Cooper S (2016-) Subaru WRX (02-05) Toyota Camry (11-15) T4: Acura Integra GS-R VTEC (3 or 4 door) (94-01) Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05) BMW 320i (14-15) Chevrolet Cobalt SS, Sport Coupe (06-10) Chevrolet Sonic RS (2011-) Chrysler/Dodge Neon ACR SOHC (4 door) (01-02) Dodge Dart (14-15) Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) Fiat 500 Abarth (12-14) Ford Focus SVT (02-04) Ford Focus ZX4 ST (05-06) Ford Focus (08-11) Ford Mustang V-6 (01-04) Honda Accord LX & EX (03-07) Honda Accord LX-S/EX/EX-L (08-12) Honda Civic Coupe Si (99-00) Honda Civic SI (02-03) Hyundai Elantra GLS (11-12) Hyundai Tiburon V-6 (03-08) Hyundai Veloster Turbo/ R-Spec (14-15) Kia Forte Koup and Sedan LX/EX (10-13) Kia Forte Koup and Sedan SX (10-13) Kia Forte Koup (14-15) Mazda Protégé ES (2000) Mazda Protégé 5 (02-03)
fasterT3 Spec Z 350Z rear wheel width increases to 10 inches; HR Engine restrictors change from 42mm to 44mm.
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo Spec Z (03-08), change as follows: Max Wheel Size (inch): "18 x 9 (F) 18 x 10 (R)" Notes: "Nissan Motorsports: Shock Front left P/N E6110-SZ350 & Front right E6111- SZ350 & rear E6210-SZ350, springs front P/N 54010-SZ350 & rear 55020- SZ350, F&R 5600S-SZ350, Front sway bar max 37mm. Rear sway bar max 25mm, Bushings P/N (54541, 54560, 55045, 55148, 55149, 55152, 55153, 55158, 56218) - RRZ30 allowed. Nismo flywheel permitted. SPC Control Arms 72125 and 72123 are allowed. HR Engine: Two 42mm flat plate restrictors required. Zspeed and Z1 alternative clutch slave permitted. Must conform to all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listed here. Nissan brake part numbers NISMO Race Front Caliper Kit 41001-FR350, NISMO Front Rotor-RIGHT 40206-
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SZ350, NISMO Front Rotor-LEFT 40207-SZ350 permitted. 44011-RC350 rear caliper kit permitted, 43206-SZ350 Right rotor permitted, 43207-SZ350 Left rotor permitted. Car must conform to the Official 2024 Spec Z Rules. HR Engine: Two 44mm flat plate restrictors required. Tires must conform to Spec Z rules. Competitor must be able to provide a copy of the current rules."
neutralT3 Nissan 350Z and 370Z now allow brake booster vacuum regulator, must not be in-car adjustable.
In T3 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo (03-08), add to Notes as follows: "Brake booster vacuum regulator allowed, cannot be in-car adjustable." In T3 Spec Lines, Nissan 370Z, incl. Nismo (2009-2022), add to Notes the following: "Brake booster vacuum regulator allowed, cannot be in-car adjustable."
Applies to Nissan 370Z on this page: Gamaliel Aguilar-Gamez
T3 Mustang Help
#35559 from Ross Murray · Rule change · TB 24-03 (2024-03 Fastrack)
fasterT3 Ford Mustang 4.6L restrictor holes increased from 40 mm to 45 mm.
In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows: "A flat plate restrictor with two 40 mm 45mm holes required directly behind throttle body."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
T3 Appeal for Retention of T3 Mazda RX-8 Spec Line (Letter #35378)
#35577 from Raymond Blethen · Rule change · TB 24-03 (2024-03 Fastrack)
unclearT3 Mazda RX-8 Spec Line retention appeal directed to letter #35584 for ruling.
Thank you for your letter. Please see letter #35584 in current Fastrack.
In HP Spec Lines, delete the following redundant spec lines in their entirety: Spec line #10 - VW Rabbit Cabriolet 1780 Spec line #3 - VW Scirocco 1588 Spec line #4 - VW Scirocco 1780 (8-valve) (83-88) Spec line #5 - VW Scirocco 1588
T3 Subaru WRX (02-05) Appeal
#35656 from Anthony Piselli III · Rule change · TB 24-03 (2024-03 Fastrack)
neutralT3 Subaru WRX (02-05) spec line expiration deadline removed; class now permanent.
In T3 Spec Lines, Subaru WRX (02-05), change Notes as follows: "**This Spec line will expire 12/31/24, Please submit to appeal**"
FP Update FP Protege (01-03) Model Info
#35715 from Production Committee · Rule change · TB 24-03 (2024-03 Fastrack)
neutralFP Mazda Protégé ES (01-03) model designation updated to include /5 variant.
In FP Spec Lines, Mazda Protégé ES (01-03) change vehicle as follows: "Mazda Protégé ES/5 (01-03)"
T3 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj.
#35761 from David Mead · Rule change · TB 24-05 (2024-05 Fastrack)
unclearT3 and T4 Mazda RX-8 may remove or disable factory oil injection system.
In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows: "OEM oil injection system may be removed or disabled." In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows: "OEM oil injection system may be removed or disabled."
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."
neutralFP Honda CRX 84-87 can replace plastic front header, rocker skirt, door cap panels with stock-appearance replicas in alternate materials.
In FP spec line "Honda CRX / CRX Si (84-87)", add the following wording to the Notes section: "The plastic OE front header/nose body panel, lower rocker side-skirt, and lower door cap panel can be replaced by a replica, which may be constructed of an alternate material, provided its appearance remains stock."
FP FP data and parity
#35896 from Production Committee · Rule change · TB 24-05 (2024-05 Fastrack)
slowerFP Acura Integra and Honda Civic models now require 55mm Flat Plate Intake Restrictor.
In the following FP spec lines, add the following wording to the Notes section: Acura Integra (90-93) Acura Integra LS (94-01) Acura Integra GSR (92-93) Honda Civic Del Sol VTEC (94-97) Honda Civic Si (99-00) "55mm Flat Plate Intake Restrictor is required."
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."
T3 Driveshafts
#35916 from Scotty B White · Rule change · TB 24-05 (2024-05 Fastrack)
slowerT2, T3, T4 driveshafts may use alternative materials or one-piece units; non-OEM adds 25 lbs.
In GCR Section 9.1.9.2.D.4.b., add the following: "6. T2-T3- Driveshafts may be replaced with alternative materials ie. carbon fiber, aluminum, steel. Two-piece driveshafts may be replaced with one-piece units. If non-OEM driveshaft is used, add 25 lbs."
neutralAudi S4 00-02 in T3 must compete in 3 Super Tour events before Runoffs eligibility.
In T3 Spec Lines, Audi S4 (00-02), add to Notes as follows: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"
unclearT3 Mazda MX-5 Global Cup Miata ND1/ND2 tire size changes to 225 DOT specification.
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND2, change Tire Size as follows: "Series Mazda MX5 Cup spec tires: 215/610 R17 BF Goodrich G-Force Slick, 20/61- 17 G-Force Wet-P2G or 225 DOT"
FP Clean-up Multiple EP RX-8 Spec Lines In EP
#36156 from Production Committee · Rule change · TB 24-06 (2024-06 Fastrack)
neutralEP Mazda RX-8 (04-11) alternate spec line removed; one primary line remains.
Spec Lines, make the following changes to the two Mazda RX-8 spec lines. Remove spec line entirely: Mazda RX-8 (04-11) Remove the wording "alternate": Mazda RX-8 (04-11)(alternate) Spec Mazda (SM/SMX) None.
T3 Mustang T2/T3
#35877 from Scotty B White · Rule change · TB 24-07 (2024-07 Fastrack)
unclearFord Mustang GT 5.0L and V6 now permit Track/Performance Package parts in T2 and T3.
In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), add to Notes as follows: "Track/Performance Package parts permitted." In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows: "Track/Performance Package parts permitted." In T3 Spec Lines, Ford Mustang V6 (15-17), change Notes as follows: "Track/Performance package allowed."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
T3 T2-T4 Driveshaft Mistake...?
#36050 from Scotty B White · Rule change · TB 24-07 (2024-07 Fastrack)
fasterT2-T4 Ford Mustangs: remove 25 lbs penalty for non-OEM driveshaft, clarify alternate driveshaft allowances.
In GCR Section 9.1.9.2.D.4.b.6., remove as follows: "If non-OEM driveshaft is used, add 25 lbs." In T2 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows: "Driveshaft from Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang Boss 302 (12-13), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang GT 5.0L (11-14)ki, change Notes as follows: "Alternate metallic driveshaft is allowed."
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In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows: "Alternate metallic driveshaft is allowed." In T2 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L (05-10), change Notes as follows: 'An Aluminum driveshaft is allowed." "Alternate metallic driveshaft is allowed." In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows: "An Aluminum driveshaft is allowed." "Alternate metallic driveshaft is allowed." In T3 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows: "Driveshaft from Alternate metallic driveshaft is allowed."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
fasterT3 Nissan 350Z DE engine now permits cold air intake.
In T3 Spec Lines, Nissan 350ZTrack/ Touring/Standard/Nismo(03-08), add to Notes as follows: "DE engine: Cold air intake permitted."
T3 B8/8.5 Audi S4 T3 and T2
#36195 from Brian Leib · Rule change · TB 24-07 (2024-07 Fastrack)
neutralAudi S4 (2000-2002) moves to T3 with 3400 lbs minimum weight, 38mm turbo inlet restrictor required.
In T3 Spec Lines, Classify Audi S4 (2000-2002) as follows and allow the T2 spec line to expire.
A specification table follows in the original; it is not shown here.
T3 Z4 Roadster Eligibility
#36196 from Allan Unruh · Rule change · TB 24-07 (2024-07 Fastrack)
neutralT3 BMW Z4 3.0si expands to include 3.0i Roadster and Coupe (07-08); hardtop permitted with positive fasteners.
In T3 Spec Lines, BMW Z4 3.0si, & Coupe (07-08) change Model and add to Notes as follows: "BMW Z4 3.0si, 3.0i, Roadster & Coupe (07-08)" Notes: "Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette (if a hardtop is used, latches shall be replaced with positive fasteners)."
neutralHP Volkswagen Golf and Jetta 85-92 track correction: front 1537mm (60.5in), rear 1529mm (60.2in).
In HP Spec Lines, change Track (F/R)mm/(in.) as follows: Volkswagen Golf (GTI, GT, GL) (85-92): "2 1537/1529 (60.5/60.2)" Volkswagen Jetta (GLI, GL) (85-92): "2 1537/1529 (60.5/60.2)"
T3 Honda Civic Si (2017+)
#36249 from Jason LaManna · Rule change · TB 24-08 (2024-08 Fastrack)
fasterT3 Honda Civic Si (2017-2021) restrictor removed, weight to 2950 lbs, Runoffs eligibility requires 3 Super Tour events.
In T3 Spec Lines, Honda Civic Si (2017-) with 2900 weight, change as follows: Model: "Honda Civic Si (2017-2021)" Restrictor: "36mm TIR" Add to Notes: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**" In T3 Spec Lines, Honda Civic Si (2017-), change as follows: Model: "Honda Civic Si (2017-2021)" Restrictor: "36mm TIR" Weight (lbs): "30752950"
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Add to Notes: "**This car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"
T3 Subaru Reliability Help
#36284 from Anthony Piselli III · Rule change · TB 24-08 (2024-08 Fastrack)
neutralT3 Subaru STI (15-20) and WRX STI (03-07) permitted to use OEM spec block #IAG-ENG-S550 and head studs.
In T3 Spec Lines, Subaru STI (15-20), add to Notes the following: "OEM spec block permitted # IAG-ENG-S550, Head studs permitted." In T3 Spec Lines, Subaru WRX STI (03-07), add to Notes the following: "OEM spec block permitted # IAG-ENG-S550, Head studs permitted."
fasterHP Sprite and Midget 1275cc and 1098cc Level 2 compression ratio raised to 12.0:1.
In HP Spec Lines, Austin-Healey Sprite MkI, II, III, IV MG Midget (ALL) - Level 2 - 1275cc, change Notes as follows: "(Effective 11/1/2024) Compression ratio limited to 11 12.0:1" In HP Spec Lines, Austin-Healey Sprite MkI, II, III, IV MG Midget (ALL) - Level 2 - 1098cc, change Notes as follows: "(Effective 11/1/2024) Compression ratio limited to 11 12.0:1"
neutralT3 VW Golf R (12-13 and 15-18) 36mm TIR placement now allows OEM turbo inlet, removing 60mm distance limit from impeller.
In T3 Spec Lines, Volkswagen Golf R (12-13), change Restrictor Required as follows: "36mm TIR max 60mm from impeller TIR may be placed in the OEM turbo inlet as long as the restriction is entirely within the leading edge of the housing." In T3 Spec Lines, Volkswagen Golf R (15-18), change Restrictor Required as follows: "36mm TIR max 60mm from impeller TIR may be placed in the OEM turbo inlet as long as the restriction is entirely within the leading edge of the housing."
T3 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft
#36484 from David Mead · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT2 and T3 Mustang spec lines remove redundant driveshaft alternate/aluminum allowance wording.
In T2 Spec Lines, change Notes as follows: Ford Mustang V6 (11-14): "Alternate driveshaft is allowed." Ford Mustang Boss 302 (12-13): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (11-14): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (15-17): "Alternate driveshaft is allowed." Ford Mustang GT 5.0L (2018-): "Alternate driveshaft is allowed. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted." Ford Mustang Coupe GT & Shelby GT 4.6L (05-10): "Alternate driveshaft is allowed."
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In T3 Spec Lines, change Notes as follows: Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10): "Alternate driveshaft is allowed." Ford Mustang V6 (11-14): "Alternate driveshaft is allowed." Ford Mustang V6 (05-10): "An Aluminum driveshaft is allowed."
neutralT2, T3, T4 fuel cell installations may remove charcoal canisters, emissions valves, and sensors.
In GCR, Section 9.1.9.2.D.1.c. add the following: "5. Removal of ancillary fuel tank equipment charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket fuel cell installations."
neutralT2, T3, T4 brake component wording clarified: 2-piece rotors allowed in T2 within 5% OE diameter, T3 within 2% OEM diameter.
In GCR, Section, 9.1.9.2.D.6. Brakes, change as follows: "a. Components 1. The make and material of brake pads and linings may be changed. 2. Brake fluid may be substituted with any brake fluid. 3. Brake rotor dust shields may be removed or replaced to accommodate brake ducts. 4. Flexible rubber brake lines may be replaced with Teflon lined, metal braided hoses. 5. Any brake ducts are permitted, but they must serve no other purpose. Fender liners may be modified solely for routing and attachment of brake ducts. Duct intake openings may be created by the opening of 2 sections up to 14.5 square inches each in
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the front fascia. The stock headlamp location is not permitted for brake ducting. Two alternative duct openings may be created by the removal of the fog lights or 2 sections up to 14.5 square inches each of stock false grills originally located in the front fascia. 6. Stock replacement brake rotors may be obtained from sources other than the manufacturer provided they are the exact equivalent of the stock rotors. In T2 only - 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 5% of OE diameter. In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 2% of OEM diameter. Drilled and slotted rotors are permitted. 7. Parking brakes, mechanisms, and actuating components may be removed. 8. Brake vacuum reservoirs sized 0.50 gallons or smaller are permitted. The port or fitting at the vacuum source may not be modified, enlarged or relocated. The vacuum reservoir and brake booster must be a closed system."
neutralT2, T3, T4 fuel cell cars may remove charcoal canisters, emissions valves, and sensors.
In GCR, Section, 9.1.9.2.D.1.c., add the following: "5. Removal of ancillary fuel tank equipment; charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket fuel cell installations."
T3 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision
#37140 from Chris Braunlich · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT3 and T4 Mazda RX-8 and MX-5 permit transmission kit #0000-02-5700.
In T4 Spec Lines, add the following to Notes: Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted. Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted." In T3 Spec Lines, add the following to Notes: Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted." Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted."
T3 Move Spec Boxster to T4
#37158 from Rob Piekarczyk · Rule change · TB 24-12 (2024-12 Fastrack)
neutralPorsche Spec Boxster moves to T4, minimum weight 2750 lbs, requires 3 Super Tour events before Runoffs eligibility.
In T4 Spec Lines, classify Porsche Spec Boxster, as follows:
A specification table follows in the original; it is not shown here.
slowerP2 2000cc Pinto engine car minimum weight set to 1335 lbs.
In P2 Engine Table, Line E Note 2, add the following: "8. Minimum weight 1335 lbs."
T3 BMW 320i Spec Line
#37204 from chi ho · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT4 BMW 320i 14-15 Spec Line expires 12/31/24 removed; Turner Motorsports intercooler #024703TMS02 allowed.
In T4 Spec Lines, BMW 320i (14-15), change Notes as follows: "**This Spec line will expire 12/31/24, Please submit to appeal** Turner Motorsports intercooler #024703TMS02 allowed."
T3 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual
fasterT3 Subaru WRX STI 03-07 drops 100 lbs to 3200; Legacy GT/Spec B 05-09 drops 150 lbs to 3200.
In T3 Spec Lines, Subaru WRX STI (03-07), change Weight as follows: "3300 3200" In T3 Spec Lines, Subaru Legacy GT/Spec B (05-09), change Weight as follows: "3350 3200"
T3 Request to Move Spec Mustang to Touring 3 (from T2)
#37080 from Roger Eagleton · Rule change · TB 25-01 (2025-01 Fastrack)
neutralFord Spec Mustang moves to T3 with 44mm bore restrictor, 275 max tire, 3450 lbs minimum weight.
In T3 Spec Lines, classify Ford Spec Mustang as follows:
A specification table follows in the original; it is not shown here.
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
FP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line
#37119 from Tim Schreyer · Rule change · TB 25-01 (2025-01 Fastrack)
fasterEP BMW 325i/is E30 (84-91) weight reduced 50–52 lbs across three spec lines to 2150, 2204, 2258.
In EP SPEC LINES, BMW 325i/is (E30) (84-91), change Weight as follows: "2200 2150 *2255 2204 **2310 2258"
T3 3.7 Mustangs BoP
#37186 from Scotty B White · Rule change · TB 25-01 (2025-01 Fastrack)
fasterT3 Ford Mustang V6 (11-14) and (15-17) now permit cold air intake.
In T3 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Cold air intake permitted." In T3 Spec Lines, Ford Mustang V6 (15-17), add to Notes the following: "Cold air intake permitted."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
In T2, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Acura TL SHAWD (10-13) Audi S4 (12-14) Audi S5 (13-14) Audi TT RS (2018-) Cadillac ATS-V (16-17) Cadillac CTS-V (06-07) Chevrolet Camaro SS (98-02)
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Honda Civic Type-R (2017-) Saturn Sky / Convertible (07-09)" In T3, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Audi TTS Coupe (10-11) Cadillac ATS (2015) Chevrolet Cobalt (05-07) Dodge SRT-4 (03-05) Ford Fiesta ST (2014-) Hyundai Genesis Coupe (2010-) Hyundai Veloster Turbo (18-21) Mini Cooper S (2016-) Toyota Camry (11-15)" In T4, Effective 1/1/2025, delete for following Spec Lines in their entirety: "Acura Integra GS-R VTEC (3 or 4 door) (94-01) Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05) Chevrolet Cobalt SS, Sport Coupe (06-10) Chevrolet Sonic RS (2011-) Chrysler/Dodge Neon ACR SOHC (4 door) (01-02) Dodge Dart (14-15) Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) Fiat 500 Abarth (12-14) Ford Focus SVT (02.5-04) Ford Focus ZX4 ST (05-06) Ford Focus (08-11) Ford Mustang V-6 (01-04) Honda Accord LX & EX (03-07) Honda Accord LX-S/EX/EX-L (08-12) Honda Civic Coupe Si (99-00) Honda Civic SI (02-03) Hyundai Elantra GLS (11-12) Hyundai Tiburon V-6 (03-08) Hyundai Veloster Turbo/ R-Spec (14-15) Kia Forte Koup and Sedan LX/EX (10-13) Kia Forte Koup and Sedan SX (10-13 Kia Forte Koup (14-15) Mazda Protégé ES (2000) Mazda Protégé 5 (02-03) Mazda6 s (03-07) Mitsubishi Eclipse GT (00-05) Nissan Sentra SER (02-03) Pontiac Firebird V-6 (96-02) Scion tC (03-07) Subaru Impreza (non-turbo) (04-06) Toyota Celica GT (00-05) Toyota Celica GTS/GT (00-05) Volkswagen Golf TDI (2010) Volkswagen Passat (12-14) Volkswgen Passat TDI (12-14) Volkswgen Passat 1.8T (2014-)"
FP Fix Error in Spridget Spec Line
#37437 from Jason Stine · Rule change · TB 25-01 (2025-01 Fastrack)
neutralFP Spridget and Midget 1275cc and 1500cc spec line corrections to bore, stroke, displacement, and valve sizes.
In FP SPEC LINES, Austin-Healey Sprite Mk. I, II,III, IV MG Midget Mk I,II, III, IV & 1500, change the following: 1275cc: Bore x Stroke: "68.1x78.4 (2.68x3.09) 70.6x81.3 (2.78x3.20)" Displacement: "(77.78) 1275" Valves IN & EX: "(I) 32.1/(1.26) (E) 28.4/(1.12) (I) 33.3/(1.31) (E) 29.5/(1.16)" 1500cc: Bore x Stroke: "1.1x84.3 73.7x87.4 (2.90x3.44)" Displacement: "1491 (90.95) 1493"
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Valves IN & EX: "(I) 36.6/(1.44) (E) 28.7 29.7/(1.17)"
FP Create ruleset that allows GTL cars to run in FP
#37485 from Club Racing Board · Rule change · TB 25-01 (2025-01 Fastrack)
neutralF Production now allows GT-Lite cars meeting Appendix N specifications to compete, effective 2025-01-01.
“(Effective January 1, 2026) (Effective January 1, 2025)." Any GT-Lite (GTL) car meeting all of the requirements of Appendix N GT-LITE CATEGORY SPECIFICATIONS for inclusion into F PRODUCTION" may compete in the F-Production class. For GTL cars competing in FP, the level of preparation and modifications will be determined by Appendix N and not by PCS 9.1.5.”
neutralFP GTL Volkswagen Jetta Mark IV 4dr FWD 98.2 wheelbase newly classified.
In FP Spec Lines, Appendix N, GTL-FP Cars - Volkswagen, classify Jetta Mark - IV as follows: GTL-FP Cars - VOLKSWAGEN Model Years Body Style Drive-line Wheelbase (in) Notes Jetta Mark - IV 4dr FWD 98.2
FP GTL/FP consolidation 2025 Rules
#37659 from James Gregorius · Rule change · TB 25-03 (2025-03 Fastrack)
neutralFP Spec Lines option: carburettor chokes permitted as alternative to SIR, same size as listed SIR.
In FP Spec Lines, Appendix N: L.9, Fuel Injection System, add the following: "As an option, induction system “Chokes” may be used where a SIR is required. Said chokes shall be fitted to each barrel of carburetor/throttle body and all airflow into engine must pass through them. Choke size will be the same as listed SIR unless noted."
T3 SpecE46 Tire Change
#37421 from Simon Foweather · Rule change · TB 25-04 (2025-04 Fastrack)
unclearT3 BMW Spec E46 updates to SpecE46 rules Version 1.1 dated Jan. 6, 2025.
In T3 Spec Lines, BMW Spec E46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.10. Version 1.1 dated Jan. 6, 2025."
T3 S197 Mustang V6 in T3
#37594 from John LoGiudice · Rule change · TB 25-04 (2025-04 Fastrack)
fasterT3 Ford Mustang V6 11-14 minimum weight drops 25 lbs to 3325.
In T3 Spec Lines, Ford Mustang V6 (11-14), change Min. Weight as follows: "3350 3325"
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
FP Request for Classification of Chevrolet Spark
#37755 from Kristian Smith · Rule change · TB 25-04 (2025-04 Fastrack)
neutralChevrolet Spark 16-22 classified HP Pre at 1850 lbs minimum weight, fuel injected, 1399 cc.
In HP Spec Lines, classify the Chevrolet Spark (16-22):
A specification table follows in the original; it is not shown here.
FP Request to Lower Ford Festiva Minimum Weight to 1600 LBS
fasterHP Ford Festiva 88-93 minimum weight drops to 1600 lbs, variants to 1640 and 1680 lbs; compression ratio raised to 11.0:1.
In HP Spec Lines "Ford Festiva (88-93)" change as follows: Weight: "1700 1600 *1743 1640 **1785 1680" Notes: "Compression ratio limited to 10.5 11.0:1. Valve lift limited to .450”."
FE2 Driver Safety & Comfort
#37965 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)
neutralFE2 allows driver safety and comfort modifications for disabled drivers with SCCA approval, not transferable to other drivers.
In FE2, GCR section 9.1.1.G.2.E, add the following: "g. Driver Safety and Comfort modifications to seat and controls for drivers with disabilities may be made only by approval. These modifications must be reported to SCCA Enterprises and noted in the car logbook. The modifications are approved only for the noted driver with disabilities. If the car is used by or sold to another driver, it must be returned to the previous standard configuration."
T3 S550 Mustang
#38061 from Scotty B White · Rule change · TB 25-05 (2025-05 Fastrack)
fasterT3 Ford Mustang V6 15-17 weight drops 50 lbs to 3350, brake options clarified with M2300V now 50 lb penalty or Brembo alternative.
In T3 Spec Lines Ford Mustang V6 (15-17), change as follows: Weight: "3400 3350" Notes: "Rear spring relocated to shock allowed. 800lbs springs (F/R) allowed. Track/ Performance Package parts permitted. Optional: 6 speed automatic transmission (with paddle shifters). Sway bars allowed up to 38mm (F) 28mm (R). Ford Motorsports 6-piston M2300V 380mm brake kit allowed with +50lb penalty, or optional 2-piece rotor 355mmmax Brembo brake kit #M- 2300-S allowed. Cold air intake permitted."
unclearT3 BMW Spec E46 rules updated to Version 3.0 from Version 1.1.
In T3 Spec Lines, BMW Spec E46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.10. Version 1.1 dated Jan. 6, 2025. Version 3.0."
FP Base Weight Adjustment for H-Production X1/9 Spec Lines
#38255 from Matthew Brannon · Rule change · TB 25-06 (2025-06 Fastrack)
fasterHP Fiat X-1/9 base weights reduced 50–53 lbs across 1300 and 1500 spec lines.
In HP Spec Lines, change Weight as follows: Fiat X-1/9 & Bertone1500: “1790 1740 *1835 1784 **1880 1827” Fiat X-1/9 1300: “1650 1600 *1691 1640 **1733 1680” Fiat X-1/9 1300: “2060 2010” Fiat X-1/9 1500: “1950 1900”
unclearBMW Spec E46 in T3 updates to SpecE46 rules Version 3.0.
In T3 Spec Lines, BMW Spec E46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.10. Version 1.1 dated Jan. 6, 2025. Version 3.0."
slowerEP BMW Z4 03-05 restricted to 52mm flat plate intake restrictor.
In EP Spec Lines, BMW Z4 (03-05), add to Notes the following: “52mm Flat Plate Intake Restrictor.”
FP EP Fiat 124 Spider Competition Adjustment Request
#38498 from John Baucom · Rule change · TB 25-07 (2025-07 Fastrack)
fasterEP Fiat 124 Spider 1600 & 2000 weight drops 50 lbs to 2000; carburetors gain 2mm chokes to 36mm.
In EP Spec Lines, Fiat 124 Sport Spider 1600 & 124 Spider 2000, change as follows: Weight: "2050 2000" Carburetor No. & Type: "(2) Weber 40 IDF-40IFI, (2) Solex C40P116, 34 36mm choke(s) req’d, (2) Weber 45DCOE w/ 34 36 mm choke(s) on I.R. manifold or fuel injection."
T3 Incorrect Touring Heading
#38451 from Terry Hanushek · Rule change · TB 25-08 (2025-08 Fastrack)
neutralT2, T3, T4 Spec Lines table header changed from T2 to ET.
In T2-T4 Spec Lines, change Table Header as follows: "T2 ET"
FE2 FE & FE2 Bubble Tail
#38978 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)
neutralFE and FE2 Enterprises must use bubble tail P/N WM138014; FE2 allows only this configuration.
In FE, GCR section 9.1.1.G.2.F.k, change as follows: "Enterprises bubble tail P/N: WM138014 is allowed for FE and is the only configuration for FE2."
FP HP Plymouth Arrow spec omission
#38995 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralHP Plymouth Arrow transmission max speeds clarified to 4 or 5.
In HP Spec Lines, Plymouth Arrow (76-80), add the following wording to Trans. Speeds(max): "4 or 5"
FP Add Wheel Diameter to Appendix G
#39008 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralEP, FP, HP wheel diameter added to Appendix G as absolute maximum specification.
In Appendix G.2.3, change as follows: "Rim width and diameter are is absolute maximums."
FP Add TB ID tolerance to general Prod rules
#39009 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralEP, FP, HP throttle body inside dimensions must remain stock with +/-.25mm tolerance; butterfly dimensions stock in FP, HP only.
In GCR, Section 9.1.5.E., change as follows: 9.1.5.E.1.b.4: "The inside dimensions of the throttle body casting/housing (as measured at the throttle butterfly) must remain stock (tolerance of +/-.25mm), but the throttle body can otherwise be ported and polished." 9.1.5.E.2.b.4: "The inside dimensions of the throttle body casting/housing and all dimensions of the throttle butterfly must remain stock (tolerance of +/-.25mm)."
T3 Make the S2000 Competitive Again
#38470 from David Mead · Rule change · TB 25-08 (2025-08 Fastrack)
fasterT3 Honda S2000 wheels grow to 17x9.0 front and 17x10 rear; tyres widen to 255 front and 275 rear.
In T3 Spec Lines, Honda S2000 (all) (00-09), change as follows: Max Wheel Size: "(Effective 11/1/2025) 17 x 9.0 (f) 17 x 10 (r)" Tire size: "(Effective 11/1/2025) 245 255 (f) 275 (r)" Notes: "(Effective 11/1/2025) CAI allowed, Header allowed."
FP Please Lower Weight of 280Z
#38871 from Matthew Miller · Rule change · TB 25-09 (2025-09 Fastrack)
fasterEP Nissan 280Z minimum weight reduced from 2560 to 2400 lbs.
In EP Spec Lines, Nissan 280Z, change Weight (lbs) as follows: "(Effective 11/1/2025) 2560 2400 *2624 2460 **2688 2520"
FP Miata Weight Adjustment Follow Up
#38949 from Don Tucker · Rule change · TB 25-10 (2025-10 Fastrack)
fasterEP Mazda MX-5 1.8L 90-97 weight reduced to 2125 lbs from 2150 lbs.
In EP Spec Lines, Mazda MX-5 / Miata 1.8L (90-97), Effective 11/1/2025 make the following weight change: "2150 2125"
FP Weight Break for 1098 Midget / Sprite
#38970 from Kendall Jones · Rule change · TB 25-10 (2025-10 Fastrack)
In HP Spec Lines, Austin-Healey Sprite/Midget 1098cc, Effective 11/1/2025make the following weight change: "1630 1550"
FP HP Volvo 142 spec omission
#38994 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
slowerHP Volvo 142/142E gains compression ratio limit 12.0:1 and valve lift limit .425".
In HP Spec Lines, Volvo 142/142E P-1800 Engine, Effective 11/1/2025 add the following wording to Notes: "Comp. Ratio limited to 12.0:1. Valve lift limited to .425”."
FP HP Mini DOHC 1.6
#38996 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
slowerHP Mini Cooper 07-15 valve lift reduced to .390", from .450".
In HP Spec Lines, Mini Cooper (07-13) (includes 09-15 convertible and 12-15 Coupe), Effective 11/1/2025 make the following changes to the Notes: "Compression ratio limited to 11.0:1, Valve lift limited to .450”.390"."
FP 83-88 FP Scirocco Spec Line Creation
#38997 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralFP Scirocco 83-88 established as spec line with 1733–1803 lbs, 1715–1780 cc SOHC, 40/33 mm valves, Solex carbs or fuel injection.
In FP Spec Lines, classify Volkswagen Scirocco (83-88) as follows:
A specification table follows in the original; it is not shown here.
FP Add to Rabbit description
#39019 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralFP and HP Volkswagen Rabbit descriptions updated: Convertible changed to Cabriolet in FP; Cabriolet added to three HP engine variants.
In FP Spec Lines, make the following spec line correction: "Volkswagen Rabbit (Includes Convertible Cabriolet)" In HP Spec Lines, make the following spec line correction: "Volkswagen Rabbit 1588 (Includes Cabriolet)" "Volkswagen Rabbit 1715 (Includes Cabriolet)" "Volkswagen Rabbit 1780 (Includes Cabriolet)"
FP Clean-up 9.1.5.E.7e
#39025 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralEP, FP, HP: rear drum brake to disc conversion clarified; rotors solid, diameter limited to largest front rotor permitted.
In GCR, Section 9.1.5.E.7., change as follows: "e. Cars fitted with rear drum brakes, can convert to rear disc brakes without penalty. Note that the “Brakes Std.” and “Brakes Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes stock, from converting to rear disc brakes under this rule. When converting from rear drum brakes to rear disc brakes: 1. Rear brake rotors must be solid and can be no larger in diameter than the largest permitted front brake rotor, as defined on the vehicle’s spec line. 2. Rear calipers and mounting brackets are unrestricted but must be made of a ferrous or aluminum material. The standard and alternate brake listings on a vehicle’s specification line, does not prohibit a car that was fitted with rear drum brakes as stock
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from converting to rear disc brakes under this rule. 3. The “Brakes Std.” and “Brakes Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes as stock from converting to rear disc brakes under this rule."
FP Add TB size to Ford Mustang (94-98) Spec Line
#39130 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralEP Ford Mustang (94-98) fuel injected throttle body inside diameter specified at 60.
In EP Spec Lines, Ford Mustang (94-98) add the following to the Fuel Injected Equipped Throttle Body Inside Diameter column: "60"
FP Correct Existing VW Scirocco Spec Line
#39140 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
fasterFP Volkswagen Scirocco: remove two engine variants (1715cc and 1780cc), lighten one variant to 1663 lbs, allow 15×7 wheels instead of 13×7.
In FP Spec Lines, Volkswagen Scirocco, change spec line as follows:
A specification table follows in the original; it is not shown here.
T3 ND Gearset Request for T4
#39166 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
neutralT3 and T4 Mazda MX-5 Miata models add approved gear kit PT#-0000-02-6100 to notes.
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T3 Spec Lines, Mazda MX-5 Miata (16-18), add to Notes the following: "Gear kit Kit PT#- 0000-02-6100." In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, add to Notes the following: "Gear kit Kit PT#- 0000-02-6100."
T3 ND Spec Lines Wrong PT#'s
#39170 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
neutralT4 Mazda MX-5 Miata/Club/RF (19-24) and (16-18) remove discontinued hardtop part #0000-07-5901; T3 MX-5 Miata (16-18) and Global Cup ND (16-21) same.
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must remain stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5804-01). Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000-04-9700-08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed. Mazda header
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0000-06-5410 allowed." In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars allowed. Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5." In T3 Spec Lines, Mazda MX-5 Miata (16-18), change Notes as follows: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Header permitted. Cold air intake permitted. Front strut brace permitted. Front and rear sway bars permitted up to 35mm, Springs 800 front and 800 Rear max permitted. Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part #0000-07-5902- ND and part #0000-07-5901 (discontinued DG Motorsports top). If a hardtop is used, latches shall be replaced with positive fasteners. Retractable hardtop option permitted but must be disabled from moving action and positively fastened. In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, change Notes as follows: "Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA article 253, safety equipment. Must meet all ND2 MX-5 Global Cup rules. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902-ND and #0000-07-5902-ND part #0000- 07-5901 (discontinued DG Motorsports). If a hardtop is used, latches shall be replaced with positive fasteners. OBD2 requirement does not apply. Ballast box may be removed. ND2s with sequential gearbox allowed +100 lbs.
FP TR2 Notes E&O
#39180 from Anthony Parker · Rule change · TB 25-12 (2025-12 Fastrack)
unclearEP Triumph TR2-TR4A allows 5-speed gearbox without overdrive; removes Weber carb and weight specification.
In EP Spec Lines, Triumph TR2, 3, 3A, 4, 4A, TR4, TR4A, IRS, make the following change to the Notes: "Front apron assembly may be made of alternate material. Three (3) Weber 40 DCOE on IR manifold with 28mm chokes @ 1990 lbs. Laycock overdrive, may use 5 speed gearbox without overdrive."
FP Balance of Power
#39187 from Jim Simaras · Rule change · TB 25-12 (2025-12 Fastrack)
slowerEP BMW Z3 2.5L restrictor reduced 52mm to 50mm, weight increased to 2550 lbs base; five other BMW models get smaller restrictors.
In EP Spec Lines, make the following changes to Restrictors: BMW Z3 2.5L: "52mm 50mm Flat Plate Intake Restrictor" BMW Z3 2.8L (97-00): "55mm 53mm Flat Plate Intake Restrictor" BMW 328i/is E36 (96-99): "58mm 55mm Flat Plate Intake Restrictor" BMW 328i/ci E46 (01-06): "58mm 55mm Flat Plate Intake Restrictor" BMW 325i/is (E46) (01-06): "56mm 53mm Flat Plate Intake Restrictor" BMW 325is M-Technic (1994): "56mm 53mm Flat Plate Intake Restrictor" BMW 325i/is E-36 (92-95): "56mm 53mm Flat Plate Intake Restrictor"
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In EP Spec Lines, BMW Z3 2.5L, change Weight as follows: "2500 2550 *2563 2614 **2625 2678"
unclearT3 Ford Mustang EcoBoost loses optional 2-piece 355mm Brembo rotor brake kit option with 50 lb penalty.
In T3 Spec Lines, Ford Mustang EcoBoost (2015-), change Notes as follows: ", or optional 2-piece rotor 355mm max Brembo brake kit #M-2300-S allowed with +50lb penalty."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
FP Competition Adjustment Request
#39259 from David Strittmatter · Rule change · TB 25-12 (2025-12 Fastrack)
fasterFP Lancia Scorpion minimum weight drops 80 lbs, to 1950.
In FP Spec Lines, Lancia Scorpion, change Weight as follows: "2030 1950"
FP Factory Roll Bar Removal on VW Convertible
#39268 from Tim Linerud · Rule change · TB 25-12 (2025-12 Fastrack)
neutralFP Volkswagen Rabbit Convertible no longer required to remove factory roll bar.
In FP Spec Line, Volkswagen Rabbit (Includes Convertible), remove the following wording in Notes: "Factory roll bar must be removed on Cabriolet."
T3 Request to Allow Spec Mustang to Touring 3 in Appendix M Trim
#39196 from Roger Eagleton · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT3 Ford Spec Mustang restrictor opens to 45mm, weight drops to 3400 lbs.
In T3 Spec Lines, Ford Spec Mustang, change as follows: Restrictor: "Two 44mm 45mm holes" Weight: "3450 3400"
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
T3 Tire Help for Spec E9X in T3
#39222 from Benjamin Phillips · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT3 BMW Spec E9X tire width increases to 255 from 225; spec E9X tire or any DOT permitted.
In T3 Spec lines, BMW Spec 9X, change as follows: Car: "BMW Spec 9X BMW Spec E9X" Notes: "Must conform to all SpecE9X rules Version 2.10. Spec E9X spec tire permitted or any DOT permitted up to 225 255 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. THIS SPEC LINE DOES NOT QUALIFY FOR SCCA RUNOFFS COMPETITION UNTIL IT HAS BEEN REPRESENTED IN 3 SCCA SUPER TOUR EVENTS."
T3 SpecE46 Tire Sizing
#39292 from Rob Piekarczyk · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT3 SpecE46 permitted tire width increases from 225 to 245.
In T3 Spec Lines, BMW SpecE46, change Notes as follows: "Must conform to all SpecE46 rules Version 3.0. SpecE46 spec tire permitted or any DOT permitted up to 225 245 permitted. No other touring allowances permitted. Engines may not be modified unless specified in the Spec E46 rules and must conform to touring tech procedures. Driver must possess a current copy of the rules. Dyno results do not ensure engine compliance. SE46 HP limit does not apply."
T3 Alternate Placement of Fuse Panel and Electronics Request
neutralT2, T3, T4 cars may relocate under-dash electronics and fuse boxes for access after roll cage installation.
In GCR, Section 9.1.9.2.D.9.d, add the following: "8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after roll cage installation."
T3 Clarify T4 Brake Rotor Allowance
#39503 from David Mead · Rule change · TB 26-01 (2026-01 Fastrack)
neutralT4 Performance now permits 1-piece alternative rotors matching spec line sizes; alternate brake kits allowed same.
In GCR, Section 9.1.9.2.D.6.a.6., change as follows: "In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a maximum diameter of 360mm. In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm. T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."
FP Request Toyota 5E Series Engines
#38208 from Scott Schick · Rule change · TB 26-02 (2026-02 Fastrack)
neutralFP class adds Toyota 5E DOHC 1497cc engine, 1900 lbs minimum weight, 23mm SIR induction.
In FP Appendix N, add spec line for the Toyota 5E engine to the "Engines - TOYOTA" section:
A specification table follows in the original; it is not shown here.
FP Request for Toyota 4E Series Engines
#38209 from Scott Schick · Rule change · TB 26-02 (2026-02 Fastrack)
neutralFP Toyota 4E DOHC 1331cc engine added to Appendix N with 1900 lbs minimum weight.
In FP Appendix N, add spec line for the Toyota 4E engine to the "Engines - TOYOTA" section:
A specification table follows in the original; it is not shown here.
T3 Please change 2011-2014 Mustang V6 Spec Line to 2005-2014
#39558 from Matthew Miller · Rule change · TB 26-02 (2026-02 Fastrack)
neutralT3 Ford Mustang V6 Spec Line expands to include 2005-2010 chassis and body with 2011-2014 engine.
In T3 Spec Lines, Ford Mustang V6 (11-14) , add to Notes the following: "2005-2010 chassis/body permitted."
Applies to Ford Mustang on this page: Scotty B White, Roger Eagleton, Matt Lituchy, Michael Lowe, Rick Luckett
FP Dual Carbs for the Fiat X1/9
#39593 from Daniel Snow · Rule change · TB 26-02 (2026-02 Fastrack)
unclearFP Fiat X1/9 gains dual carburetor options with 28mm side-draft alternates and revised valve/transmission specs.
In FP Spec Lines, change as follows: Fiat X-1/9 & Bertone 1300: "(1) Weber 32 DMTR or DATRA/100 w/32mm bores (1) 40 DCNF w/32mm choke(s) (2) auto-type side-draft w/28mm choke(s) on I.R. manifold Orientation of the alternate carburetor is unrestricted. The alternate carb adapter may not be thicker than 1.25”. The adapter may have a bore larger than the throttle bore of the approved alternate carburetor. Valve Size: (I) 35.5/(1.40) (E) 31.3/(1.23)30.5/(1.20) (E) 1.23
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Trans. Speeds: 5" Fiat X-1/9 & Bertone: "Fuel Injection (1) 34 DMTR, (1) 36 DCNF w/34mm choke(s), or (1) 40DCNF w/34mm choke(s) (1) 36 or 40 DCNF w/34mm choke(s) (2) auto-type side-draft w/28mm choke(s) on I.R. manifold Orientation of the alternate carburetor is unrestricted. The alternate carb adapter may not be thicker than 1.25”. The adapter may have a bore larger than the throttle bore of the approved alternate carburetor. Valve Size: (I) 35.5/(1.40) (E) 33.0/(1.30) Trans. Speeds: 5 or 4"
T3 Nissan 350Z Weight Request
#39598 from David Muramoto · Rule change · TB 26-02 (2026-02 Fastrack)
fasterT3 Nissan 350Z DE Motor loses 25 lbs to 3100, HR Motor loses 25 lbs to 3250.
In T3 Spec Lines, Nissan 350Z Track/ Touring/Standard/ Nismo (03-08), change Weight as follows: DE Motor: "3125 3100" HR Motor: "3275 3250"
T3 Allow Alt Bushing Material in Toe Links
#39607 from David Mead · Rule change · TB 26-02 (2026-02 Fastrack)
fasterT2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously prohibited except in specified examples.
In GCR, Section 9.1.9.D.5.a.1., change as follows: "T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings, eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates (strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric
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bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe angle. Adjustable toe links are permitted. They are allowed to have performance alternative bushings and spherical bearings. They may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the specific examples listed in the class rules or vehicle spec line."
What the rules allowed changed as listed; this does not say what any particular car ran.