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.
7 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
Porsche Boxster
T3/T4
2
1:51.337Reto Eberle
2:05.833Lynne Griffiths
2:07.226Lynne Griffiths
128.4Reto Eberle
29.898Reto Eberle
33.530Reto Eberle
54.812Reto Eberle
Porsche 986 Boxster
T3
1
1:51.337Reto Eberle
128.4Reto Eberle
29.898Reto Eberle
33.530Reto Eberle
54.812Reto Eberle
Porsche Boxster
T4
1
2:05.833Lynne Griffiths
2:05.833Lynne Griffiths
2:07.226Lynne Griffiths
122.0Lynne Griffiths
33.699Lynne Griffiths
36.036Lynne Griffiths
55.879Lynne Griffiths
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 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 MX-5
T4
1
1:58.339Oscar Jackson
1:58.339Oscar Jackson
1:59.922Oscar Jackson
105.5Oscar Jackson
32.394Oscar Jackson
34.071Oscar Jackson
51.874Oscar Jackson
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
Toyota FRS
T4
1
2:01.157Izzy Sanchez
2:01.678Izzy Sanchez
2:01.157Izzy Sanchez
135.5Izzy Sanchez
32.955Izzy Sanchez
34.751Izzy Sanchez
52.742Izzy Sanchez
Scion FR-S
T4
1
2:01.843Tony Kiratsous
2:01.843Tony Kiratsous
2:03.865Tony Kiratsous
133.6Tony Kiratsous
32.895Tony Kiratsous
34.958Tony Kiratsous
53.933Tony Kiratsous
Mazda Miata
T4
2
2:03.007Kristina Etherington
2:03.241Kristina Etherington
2:03.007Kristina Etherington
128.1Kristina Etherington
33.464Kristina Etherington
35.459Kristina Etherington
53.723Kristina Etherington
Mazda RX-8
T4
1
2:05.858Steven Kiratsous
2:06.604Steven Kiratsous
2:05.858Steven Kiratsous
105.7Steven Kiratsous
33.416Steven Kiratsous
35.585Steven Kiratsous
55.885Steven Kiratsous
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 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."
T4 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."
T4 Request to Classify 2004-2008 Acura TSX in T4
#33590 from William Phee · Rule change · TB 23-04 (2023-04 Fastrack)
neutralAcura TSX 2004-2008 newly classified in T4 at 3000 lbs minimum weight with 2354cc engine.
In T4 Spec lines, classify Acura TSX (2004-2008) as follows:
A specification table follows in the original; it is not shown here.
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:
T4 T4 Mustang Brakes/Swaybar
#34036 from Scotty B White · Rule change · TB 23-04 (2023-04 Fastrack)
fasterT4 Mustang rear sway bar increases from 22mm to 28mm permitted.
In T4 Spec Lines, Ford Mustang (2005-2010), change Notes as follows: "Any sway bar up to F: 35mm and R: 22mm 28mm permitted."
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.
unclearT3 BMW SpecE46 must conform to SpecE46 rules Version 2.10, updated from 2.7.
In T3 Spec Lines, BMW SpecE46, change Notes as follows: "Must conform to all SpecE46 rules Version 2.7. 2.10."
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
fasterT4 Mini Cooper S all years now run 17-inch wheels, up from 16, with wider rims to 8 inches.
In T4 Spec Lines, Mini Cooper S (02-04), change as follows: Wheel Size: "16 x 7 17 x 8" Add to Notes: "Wheels conforming to B-spec rules are permitted." In T4 Spec Lines, Mini Cooper S (05-06), change as follows: Wheel Size: "16 x 7 17 x 8" Add to Notes: "Wheels conforming to B-spec rules are permitted." In T4 Spec Lines, Mini Cooper S (07-13), change as follows: Wheel Size: "17 x 7 8"
In T3 Spec Lines, BMW SpecE46, change weight as follows: "2950 2900"
T4 96-01 Audi a4 2.8 Spring Rate
#34217 from Michael Gordhamer · Rule change · TB 23-06 (2023-05 Fastrack)
fasterT4 Audi A4 2.8 V6 wheels grow to 17x8, tyres to 245, springs now 800lb with 32mm sway bars.
In T4 Spec Lines, Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05), change as follows: Wheel Size: "16 x 7 17 x 8" Tire Size: "225 245" Notes: "The following items must remain stock: shock/struts (including mounts), original wheels, and transmission differential - unless specified below. 800lb springs allowed. Front and rear sway bars permitted 32mm max."
neutralT3 adds 2022 Toyota GR Cup and GR86 Cup, both 2387cc, 2700 lbs, 245/620R18 slicks, 332x32F/280x32R brakes.
In T3 Spec Lines, Toyota GR Cup (2022-), classify as follows:
A specification table follows in the original; it is not shown here.
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"
fasterT4 Mini Cooper S R53 loses 50 lbs, to 2700 for both 02-04 and 05-06 model years.
In T4 Spec Lines, Mini Cooper S (02-04), change Weight as follows: "2750 2700" In T4 Spec Lines, Mini Cooper S (05-06), change Weight as follows: "2750 2700"
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)."
T4 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:
Show 2 more lines
(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."
T4 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."
T4 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."
T4 Inclusion of similar car. (CLK 320)
#34626 from Patrick Morgan · Rule change · TB 23-09 (2023-09 Fastrack)
neutralT4 Mercedes Benz CLK 320 Coupe model years expand to 2000-2007, C320 Sedan added.
In T4 Spec Lines, Mercedes Benz CLK 320 Coupe (2004), change as follows: "Mercedes Benz CLK 320 Coupe, C320 Sedan (2004 2000-2007)
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.
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."
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.
T4 Mazda MX-5 ND1 Spec Line Request
#34232 from Josh Smith · Rule change · TB 24-01 (2024-01 Fastrack)
slowerT4 Mazda MX-5 ND1 minimum weight increases 50 lbs to 2700; suspension springs now allow up to 500 lb front, 300 lb rear.
In T4 Spec Lines, Mazda MX-5 Miata/Club/ RF (16-18), change as follows: Weight: "2650 2700" Notes: "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. Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000-04-9700-08, rear springs #0000-04-9400-07, helper springs #0000-04-HLPR-EB (optional). Up to 500lb front and 300lb rear
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."
T4 TSX Allowance
#35219 from Oscar Jackson · Rule change · TB 24-01 (2024-01 Fastrack)
fasterT4 Acura TSX 2004-2008 now allows header.
In T4 Spec Lines, Acura TSX (2004-2008), add to Notes the following: "Header allowed."
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)"
T4 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
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."
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."
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."
T4 More Car Lightening Stuff
#35319 from Scotty B White · Rule change · TB 24-02 (2024-02 Fastrack)
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 Mazda MX-5 Miata/Club (16-18) and (19-21) permitted to replace 3rd and 4th gears with specific parts.
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following: "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)." In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), add to Notes the following: "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)."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
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."
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)
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)
Cal Club 2024 → Cal Club 2025 2024-02-23 to 2025-02-22
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.
neutralT4 Mazda RX-8 allows Mazdaspeed radiator, coil spring kit, OE rear spoiler, front air dam, springs to 700 lb front/400 lb rear, oil metering pump bypass, sway bars to 32 mm front/19 mm rear.
In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change Notes as follows: "Mazdaspeed radiator #0000-01-8501 allowed. Mazdaspeed coil spring kit #QSEA-34-01Z allowed. OE Rear spoiler allowed #F151-V4-920F. OE front air dam allowed #F151-V4-900f-BB. Springs allowed 700lb (f) max, 400(r) max. Oil metering pump may be bypassed. Alternate sway bars allowed max 32mm (f) 19mm (r)."
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."
T4 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."
T4 2023 ND2 Miata Classification and Allowances
#35837 from Coyote Black · Rule change · TB 24-05 (2024-05 Fastrack)
slowerT4 Mazda MX5 Miata/Club/RF year range extended to 2024, suspension package permitted with 100 lbs weight increase.
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), change Year as follows: "(19-21 24)" In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), add to Notes as follows: "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."
T4 Errors and Omissions for 06-09 VW Rabbit Rotor
#35851 from Andrew Burke · Rule change · TB 24-05 (2024-05 Fastrack)
fasterT4 Volkswagen Rabbit 2.5 (06-09) front brakes increase from 228 to 288 vented disc.
#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."
T4 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.**"
fasterT4 Mazda MX-5 Miata/Club 16-18 removes differential stock requirement, allows up to 500lb front and 300lb rear springs.
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. 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. Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000- 04-9700-08, rear springs #0000-04-9400-07, helper springs #0000-04-HLPR-EB (optional). Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
T4 Allow OEM Front Spoiler 06-08 Miata in T4
#35941 from David Mead · Rule change · TB 24-06 (2024-06 Fastrack)
fasterT4 Mazda MX-5 Club 06-15 now permits OEM front spoiler NF51-V4-900F.
In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), add to Notes the following: "Front spoiler permitted (NF51-V4-900F)."
fasterT4 Mini Cooper S 02-04 and 05-06 now allow Milltek exhaust manifold #SSXM459 and 25mm rear sway bar.
T4 Spec Lines, Mini Cooper S (02-04), add to Notes the following: "Milltek exhaust manifold #SSXM459 allowed. 25mm rear sway bar allowed." T4 Spec Lines, Mini Cooper S (05-06), add to Notes the following: "Milltek exhaust manifold #SSXM459 allowed. 25mm rear sway bar allowed."
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
T4 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
T4 Homologation of car to T4
#36030 from Patrick E Morgan · Rule change · TB 24-07 (2024-07 Fastrack)
neutralMercedes C300 4Matic 2008-2011 homologated to T4 at 3,725 lbs with 18x8.5 wheels, 245 max tires, 3.27 final drive.
In T4 Spec Lines, Mercedes C300 4Matic (2008-2011), classify as follows:
A specification table follows in the original; it is not shown here.
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
T4 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
T4 MINI Cooper S Spec Lines Corrections.
#36086 from David Oliveira · Rule change · TB 24-07 (2024-07 Fastrack)
neutralT4 Mini Cooper S (02-04) deleted; (05-06) model year corrected to R53; (07-13) R56 simplified specs; (2014-2023) added with spring rates.
In T4 Spec Lines, Mini Cooper S (02-04), delete spec line in its entirety. In T4 Spec Lines, Mini Cooper S (05-06), change Model as follows: "Mini Cooper S R53 (0205-06)" In T4 Spec Lines, Mini Cooper S (07-13), change Model and Notes as follows: "Mini Cooper S R56 (07-13)" Notes: "The following items must remain stock: shock/struts (including mounts), original wheels, and transmission differential - unless specified below. Convertible model not allowed. Factory optional limited slip differential allowed. JCW struts (F) 31 31 6 768 410 (R)33 52 6 768 412, springs (F)31 33 6 768 415 (R)33 53 6 768 418. May de-camber
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wheels by the use of slotted adjusters at the top of the strut mounting plates. They shall be located on the existing chassis structure, utilizing the manufacturers original bolt holes and may not serve as reinforcement for that structure. Any spring up to a maximum spring rate of 500 lbs. front and 800 lbs. rear may be used. Wheels conforming to B-spec rules are permitted." In T4 Spec Lines, Mini Cooper S (2016-), change Model and add to Notes as follows: "Mini Cooper S (20142016-2023)" Notes: "Convertible model not allowed. Any spring up to a maximum spring rate of 500lbs. front and 800lbs. rear may be used."
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."
T4 Allow Removal of Sound Tubes
#36130 from Coyote Black · Rule change · TB 24-07 (2024-07 Fastrack)
fasterT4 OEM intake chambers, resonators and acoustic devices may be removed if ports sealed and before restrictor.
In GCR Section 9.1.9.2.D.1.b., add the following: "2. OEM intake- Chambers, resonators and acoustic devices may be removed, provided; that their ports are located prior to any required restrictor, their ports are completely sealed, and that the part serves no other purpose."
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.
T4 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)."
fasterT4 Chevrolet Camaro V-6 (96-02) weight reduced from 3250 lbs to 3150 lbs.
In T4 Spec Lines, Chevrolet Camaro V-6 (96-02), change weight as follows: "3250 3150"
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."
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."
T4 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."
fasterT4 Mini Cooper S R53 now allows Alta 15% Pulley #AMPENG20X.
In T4 Spec Lines, Mini Cooper S R53 (02-06), add to Notes as follows: "Alta 15% Pulley #AMPENG20X allowed."
T4 Allowable Wheel Offset
#36855 from Robert Maples · Rule change · TB 24-12 (2024-12 Fastrack)
neutralT4 removes restriction on aftermarket wheel weight minimum of 15 lbs.
In GCR Section 9.1.9.2.D.7. Wheels and Tires, change as follows: "a. Wheels 1. Any type wheel suitable for competition may be used, provided: a. Any wheel not exceeding the specified diameter and rim width on the vehicle’s specification line may be used. Each wheel, measured without weights, must weigh at least 15 lbs. b. 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 9.1.9.2.Touring (T2-T4) Category Specifications GCR - 660 the top perpendicular to the ground, unless specified differently on the individual spec line for that car. To determine compliance the vehicle should be
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rolled through a powdered substance, as raced with driver, in order to indicate the tire tread contact patch under static conditions. When a maximum tire size is listed on a vehicle’s specification line, aspect ratio is open and any tire may be used that does not exceed the stated maximum section width. c. Cars equipped with lug bolts may convert to wheel studs and lug nuts. d. Wheel studs may be replaced with longer studs as necessary to fit optional wheels. Wheel spacers may be used for purposes of adjusting track. e-T4 only: (unless specified on spec line) Any aftermarket wheel with a minimum weight of 15 lbs 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 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 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."
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."
#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.
Applies to Porsche Boxster on this page: Lynne Griffiths
T4 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.
Applies to Porsche Boxster on this page: Lynne Griffiths
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."
T4 3.7 Mustangs to T4
#37188 from Scotty B White · Rule change · TB 24-12 (2024-12 Fastrack)
neutralFord Mustang V6 (05-14) newly classified to T4 with 50mm restrictor, 3400 lbs minimum weight.
In T4 Spec Lines, classify Ford Mustang V6 (05-14), as follows:
A specification table follows in the original; it is not shown here.
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."
T4 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."
T4 MX5 2006-2015 NC Help
#37221 from Richard Mooney · Rule change · TB 24-12 (2024-12 Fastrack)
unclearUnable to summarize: rule changes specified in letter #37281, not provided.
Thank you for your letter. Please see changes in letter #37281 in current Fastrack.
T3 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual
fasterT4 Honda Civic Si 06-11 minimum weight drops 50 lbs to 2900, restrictor clarified.
In T4 Spec Lines, Honda Civic Si (06-11), change as follows: Required Restrictor: "55mm flat plate restrictor required." Min Weight: "2950 2900" Notes: "The following items must remain stock: transmission differential - unless specified below. 55mm flat plate restrictor required. LSD IS PERMITTED ACCORDING TO CATEGORY RULES"
neutralT4 NC MX-5 06-15 removes SM5 suspension allowance, clarifies Mazda Motorsports LSD part number, adds weight penalty for other LSDs.
In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change Notes as follows: "Factory bolt-in roll bar/cross member may be removed to facilitate roll cage installation. MSR option permitted. Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front spring mount PT#-0000-04-5259, front springs #0000-04-9700-08, rear spring mount PT#-0000-04-5258, rear springs #0000-04-9400-07, helper springs #0000-04-HLPR- EB (optional), Swaybar kit – PT#-0000-04-5306-EB that includes (front sway bar kit PT#0000-04- 5306-FT, rear sway bar kit PT#- 0000-04-5306-RR), offset front camber bushing PT#-0000-04- 5407-NC. Mazda Motorsports cold air intake part #0000-06-5150- KT allowed. Mazda Motorsport RX8 rear Hub Conversion kit part number 0000-04-5811-KT allowed, RX8 front hubs PT# F189-33- 04X allowed. The SM5 suspension (only) is allowed with a 100 lbs. weight increase. Allow Mazda header part numbers 0000-06-
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5407 or 0000-06-5407-NC. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop and part #0000-07-5901- CC. Aftermarket power steering reservoir is allowed. Mazda Transmission kit part # 0000-02- 5700. Mazda Motorsports LSD #3265 5 0000-02-5564 permitted without penalty. Any other non-OEM limited slip differential allowed with +50 lbs. weight penalty. Front spoiler permitted (NF51-V4-900F)."
Applies to Mazda MX-5 on this page: Oscar Jackson
T4 ND MX-5 wheel allowance
#37279 from Josh Smith · Rule change · TB 24-12 (2024-12 Fastrack)
unclearT4 Mazda MX-5 Miata/Club (16-18) wheel size changes to 17 x 7.5 inches.
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Wheel Size as follows: "17 x 7.5"
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
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
T4 2016-2018 Mazda Miata MX5
#37085 from Nic Piekarski · Rule change · TB 25-01 (2025-01 Fastrack)
fasterT4 2016-2018 Mazda Miata MX-5 minimum weight reduced to 2575 lbs from 2650 lbs.
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Min Weight as follows: "2650 2575" In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following: "Mazda header 0000-06-5410 allowed."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
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-)"
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-)"
neutralT4 Ford Mustang V6 (05-14) final drive set to 3.45, GT/CS front bumper cover permitted with front fascia.
In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows: Final drive: "3.45" Notes: "GT/CS front bumper cover #AR3Z-17D957-BA, allowed if used with front fascia."
T3 Request to Classify Club Spec in Appropriate Touring Classes
#37523 from Andrew Benagh · Rule change · TB 25-02 (2025-02 Fastrack)
neutralFord SCCA Club Spec Mustang classified T3 at 3350 lbs with driver; Mazda SCCA Club Spec MX-5 classified T4 at 2500 lbs with driver.
In T3 Spec Lines, classify Ford SCCA Club Spec Mustang (CSM) 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
Applies to Mazda MX-5 on this page: Oscar Jackson
T4 Request to Classify Club Spec in Appropriate Touring Classes
#37523 from Andrew Benagh · Rule change · TB 25-02 (2025-02 Fastrack)
neutralFord SCCA Club Spec Mustang classified T3 at 3350 lbs with driver; Mazda SCCA Club Spec MX-5 classified T4 at 2500 lbs with driver.
In T3 Spec Lines, classify Ford SCCA Club Spec Mustang (CSM) 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
Applies to Mazda MX-5 on this page: Oscar Jackson
Cal Club 2025 → Cal Club 2026 2025-02-22 to 2026-02-21
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
T4 Correct Ring and Pinion Ratio to T3, Sorry I Mean T4 3.7 V6 Stang
#38041 from David Mead · Rule change · TB 25-05 (2025-05 Fastrack)
neutralT4 Ford Mustang V6 05-14 allows GT 8.8 rear axle or 7.5 axle with 3.45:1 ratio.
In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes the following: "GT 8.8 rear axle assembly allowed. 3.45 or 3.55 final drive ratio allowed. 7.5 rear axle assembly with 3.45:1 final drive allowed."
T4 T4 Mustang
#38058 from Scotty B White · Rule change · TB 25-05 (2025-05 Fastrack)
neutralT4 Ford Mustang V6 05-14 now permits OEM style rear deck spoiler similar to Laguna/CS packages.
In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes as follows: "OEM style rear deck spoiler similar to Laguna/CS packages permitted.”
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."
T4 T4 Mustang
#38059 from Scotty B White · Rule change · TB 25-06 (2025-06 Fastrack)
fasterT4 Ford Mustang V6 05-14 weight drops from 3400 to 3300 lbs.
In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows: Final Drive: "3.45 or 3.31" "Weight: "3400 3300"
T4 SSC tire allowance
#38216 from Benjamin Bunk · Rule change · TB 25-06 (2025-06 Fastrack)
neutralT4 Scion FR-S and Subaru BRZ Solo Spec allow any 200TW 225/45/17 or 215/45/17 DOT tire.
In T4 Spec Lines, Scion FR-S Solo Spec Coupe (13-16), change Notes as follows: "Any 200TW 225/45/17 or 215/45/17 DOT tire permitted." In T4 Spec Lines, Subaru BRZ Solo® Spec Coupe (13-16), change Notes as follows: "Any 200TW 225/45/17 or 215/45/17 DOT tire permitted."
Applies to Scion FR-S on this page: Tony Kiratsous
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."
neutralT4 now permits B-Spec and C-Spec cars to compete in the class.
In GCR, Section 9.1.9.2, Touring car eligibility, 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 B-Spec or C-Spec rules are permitted to compete in Touring 4."
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"
T4 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"
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."
unclearT4 Mini Cooper S R53 02-06 gear ratios changed to 12.79, 7.79, 5.65, 4.62, 3.83, 3.13 or 11.42, 7.18, 5.39, 4.40, 3.65, 2.96.
In T4 Spec Lines, Mini Cooper S R53 (02-06), change Gear Ratios as follows: "12.79, 7.79, 5.65, 4.62, 3.83, 3.13 or overall- 11.42, 7.18, 5.39, 4.40, 3.65, 2.96"
T4 Reinstatement of the 2005-2010 Cobalt into T4
#38987 from Tim Little · Rule change · TB 25-11 (2025-11 Fastrack)
neutralChevrolet Cobalt SS Sport Coupe 06-10 reinstated to T4 with 2384cc engine, 2628 restrictor, 2700 lbs minimum weight.
In T4 Spec Lines, classify Chevrolet Cobalt SS, Sport Coupe (06-10) as follows:
A specification table follows in the original; it is not shown here.
T4 Request to Classify Mercedes C230K
#39080 from Patrick Morgan · Rule change · TB 25-11 (2025-11 Fastrack)
neutralMercedes C230 Kompressor 2002-2005 classified in T4 at 3240 lbs with 17-inch wheels and 300/290 mm brakes.
In T4 Spec Lines, classify Mercedes C230 Kompressor (2002-2005) 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."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
T4 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."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
T4 E&O wheel size on ND
#39168 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
unclearT4 Mazda MX-5 Miata/Club 16-18 wheel size changed to 17 x 7.5 inches.
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Wheel Size (in.) as follows: "17 x 7.5"
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
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.
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
T4 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.
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
T4 Touring 4 Post-Runoffs BOP Adjustments and Changes
In T4 Spec Lines, Acura RSX/ RSX Type-S (02-06), change Restrictor as follows: "55mm FPR" In T4 Spec Lines, Acura TSX (2004-2008), change Restrictor as follows: "47mm FPR 52mm FPR" In T4 Spec Lines, BMW Z4 2.5L (03-05) , change Weight as follows: "3050 2950" In T4 Spec, BMW 320i (14-15), remove this spec line in its entirety. In T4 Spec Lines, BMW 323 (98-00), change as follows:
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Tire size: "225 245" Weight: "3250 3150" In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows: Restrictor: "50mm 43mm" Weight: "3300 3400" In T4 Spec Lines, Honda Civic Si (06-11), change Restrictor as follows: "55mm" In T4 Spec Lines, Honda Civic Si (12-15), change as follows: Restrictor: "47mm 52mm Notes: "Transmission and Differential must be stock." In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change as follows: Weight: "2550 2500" Notes: "Factory bolt-in roll bar/cross member may be removed to facilitate roll cage installation. MSR option permitted. Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front spring mount PT#-0000- 04-5259, front springs #0000-04-9700-08, rear spring mount PT#-0000-04-5258, rear springs #0000- 04-9400-07, helper springs #0000-04-HLPR-EB (optional), Swaybar kit – PT#-0000-04-5306-EB that includes (front sway bar kit PT#0000-04-5306-FT, rear sway bar kit PT#-0000-04-5306-RR), offset front camber bushing PT#- 0000-04-5407-NC. Mazda Motorsports cold air intake part #0000-06-5150-KT allowed. Mazda Motorsport RX8 rear Hub Conversion kit part number 0000-04-5811-KT allowed, RX8 front hubs PT# F189-33-04X allowed. Allow Mazda header part numbers 0000-06-5407 or 0000-06-5407-NC. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop and part #0000-07-5901-CC. Aftermarket power steering reservoir is allowed. Mazda Transmission kit part # 0000-02-5700. Mazda Motorsports LSD #32655 permitted without penalty. Any other non-OEM limited slip differential allowed with +50 lbs. weight penalty. Front spoiler permitted (NF51-V4-900F). Transmission kit # 0000-02-57 In T4 Spec Lines, Pontiac Solstice / Saturn Sky (06-09), change as follows: Weight: "2800 2700" Brakes: "(F) 296 315 Vented Disc max (R) 278 Solid Disc" Notes: "GM calipers #22720705, and #25900764 permitted" In T4 Spec Lines, Scion FRS/10 series (13-16), change Weight as follows: "2925 2875" In T4 Spec Lines, Subaru BRZ/ BRZ Limited (13-16), change Weight as follows: "2925 2875" In T4 Spec Lines, Subaru BRZ (17-21), change Weight as follows: "3000 2950" In T4 Spec Lines, Toyota 86, GT (17-21), change Weight as follows: "3000 2950" SCCA Runoffs
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
In T4 Spec Lines, classify Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) as follows:
A specification table follows in the original; it is not shown here.
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."
T4 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."
T4 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."
T4 T4 and T3 Feedback
#39230 from Tim Myers · Rule change · TB 26-02 (2026-02 Fastrack)
neutralFord Mustang V6 (05-14) removed from T4 Spec Lines.
In T4 Spec Lines, remove Ford Mustang V6 (05-14) in its entirety.
T4 T4 Mustang 4.0
#39489 from Scotty B White · Rule change · TB 26-02 (2026-02 Fastrack)
fasterT4 Mustang 4.0 V6 tire size increases from 245 to 255.
In T4 Spec Lines, Ford Mustang V6 (05-10), change as follows: Tire: "245 255" Notes: "ABS (option code 552) allowed. FR3 Handling Pack #M-2007-FR3V6 allowed (kit does not need to be run in its entirety). The kit includes: Dampers M-18000-A, Lowering Springs M-5300-N, Sway Bars M- 5490-C, Strut Tower Brace M-20201-F. Ford Positraction LSD part #M-4204-C75 is allowed. Any springs max F: 500 and R: 400 permitted. Any sway bar up to F: 35mm and R: 28mm permitted. Aftermarket Shocks conforming to T4 rules allowed. Panhard bar, part # BAR-M-4264-A permitted, or any pan hard bar permitted must be set at same length as a stock bar, center mounting hole to center mounting hole +/- 0.25 inch. An alternative steel drive shaft is permitted; this drive shaft is otherwise unrestricted, but no modifications to other components
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are permitted to facilitate its installation. An Aluminum driveshaft is allowed. Any LSD permitted. Ford brake kit M-2300-D allowed. Aftermarket header allowed. GT 8.8 rear axle assembly allowed. 3.45 or 3.55 Alternate final drive ratio allowed. 7.5 rear axle assembly with 3.45:1 final drive allowed. Cold Air Intake allowed. Koni part numbers 8741-1494SPORT (front) and 8241-1240SPORT (rear). Spec clutch #SF661 and flywheel #SF66A permitted. 14” Brembo Brake Kit#M-2300-S permitted."
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
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."
T4 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.