This track has been raced on 4 configurations (The Circuit, 2.57 mi; 2.92 mi; 1.83 mi; 3.02 mi). Laps on different configurations are not comparable, so only events on the 2.57 mile layout are shown; switch above to see the others.
One run is left out as not that car's own laps (far quicker than the car managed in any other session and than anyone else in its class all week; usually a swapped transponder): Tom Burt in Cal Club 2025 PM (1:42.300; the car's best in any other session was 1:52.334 and the rest of the class's best all week 1:50.233).
6 laps are left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.
One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it.
Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors
S1 SF → IM1 0.65 mi
S2 IM1 → IM2 0.75 mi
S3 IM2 → SF 1.17 mi
Spd In → Out 0.03 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
By car
Car
Class
Drivers
Lap
Qual
Race
Trap
S1
S2
S3
Van Diemen RF05
FC
1
1:11.935Peter West
1:11.935Peter West
Van Diemen RF99
FC
1
1:12.478Troy Shooter
1:12.478Troy Shooter
Van Diemen DP08
FC
1
1:14.576Gary Peterson
1:14.576Gary Peterson
Van Diemen RF01
FC
2
1:45.137Robert Armington
1:45.137Robert Armington
1:45.314Robert Armington
143.5Robert Armington
29.050Paul MacFarlane
30.109Robert Armington
45.728Robert Armington
Van Diemen DP-08
FC
1
1:45.137Robert Armington
1:45.137Robert Armington
1:45.314Robert Armington
143.5Robert Armington
29.106Robert Armington
30.109Robert Armington
45.728Robert Armington
Van Diemen RF01
FC
1
1:48.522Paul MacFarlane
1:50.067Paul MacFarlane
1:48.522Paul MacFarlane
114.4Paul MacFarlane
29.050Paul MacFarlane
31.137Paul MacFarlane
48.294Paul MacFarlane
Van Diemen RF96
FC
1
1:47.570Shawn Sarbacker
1:47.741Shawn Sarbacker
1:47.570Shawn Sarbacker
146.2Shawn Sarbacker
29.351Shawn Sarbacker
30.778Shawn Sarbacker
47.076Shawn Sarbacker
Van Diemen RF97
FC
1
1:47.993Bill Wallschlaeger
1:51.040Bill Wallschlaeger
1:47.993Bill Wallschlaeger
147.5Bill Wallschlaeger
29.638Bill Wallschlaeger
30.895Bill Wallschlaeger
47.233Bill Wallschlaeger
SCCA Ent SRF3
SRF3
38
1:50.233Caleb Shrader
1:50.233Caleb Shrader
1:50.825Caleb Shrader
138.9Paul Marino
30.136Caleb Shrader
31.672Caleb Shrader
44.841Tom Burt
Mazda RX-7
FP
1
1:55.440Michael Lewis
1:56.121Michael Lewis
1:55.440Michael Lewis
128.8Michael Lewis
31.255Michael Lewis
33.299Michael Lewis
50.847Michael Lewis
Nissan Sentra SE-R
FP
1
1:55.722Brian Linn
1:57.239Brian Linn
1:55.722Brian Linn
128.3Brian Linn
31.416Brian Linn
33.400Brian Linn
50.478Brian Linn
Volkswagen GTI
FP
1
1:56.016Tim Linerud
2:06.156Tim Linerud
93.4Tim Linerud
33.738Tim Linerud
35.656Tim Linerud
55.246Tim Linerud
Mazda MIata
FP
1
1:56.276Steven Powers
1:57.032Steven Powers
1:56.276Steven Powers
134.3Steven Powers
31.570Steven Powers
33.696Steven Powers
50.716Steven Powers
Van Diemen RF
FC
1
1:58.213Greg Pizzo
2:10.106Greg Pizzo
1:58.213Greg Pizzo
127.3Greg Pizzo
32.045Greg Pizzo
34.162Greg Pizzo
51.126Greg Pizzo
Fiat X 1/9
FP
1
1:59.128Daniel Snow
2:00.398Daniel Snow
1:59.128Daniel Snow
137.8Daniel Snow
31.878Daniel Snow
34.053Daniel Snow
52.221Daniel Snow
Porsche 914-4
FP
1
2:15.932Garey Raymond
2:21.274Garey Raymond
2:15.932Garey Raymond
84.8Garey Raymond
37.237Garey Raymond
39.091Garey Raymond
59.604Garey Raymond
The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.
Rule changes between these events
Cal Club 2023 → Cal Club 2024 2023-02-24 to 2024-02-23
SRF3 Update SRF Brake Rule
#33469 from Robey Clark · Rule change · TB 23-01 (2023-01 Fastrack)
slowerSRF Renault Alliance solid front rotors banned; restrictor reduced 35mm to 34mm for 2011+ Kawasaki; minimum weight increased to 1100 lbs for 2009+ stock engines.
In SRF, GCR section 9.1.8.D.X.g, change as follows: "Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall be used as delivered with no machining of any kind. Minimum thickness 12.20mm (0.481"). The 1985 Renault Alliance solid front rotor (Reference: Bendix PRT1318 or Centrix 121.11004) may be used on front, rear, or both axles, but each axle must be paired to the same type rotor. The Renault Alliance solid front rotors may not be used. Rubber caliper bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185. Original caliper pistons may be replaced with vented caliper piston P/N 1196184; no other modification allowed. Wilwood caliper with bracket universal fit P/N 800038 may be used as delivered with no modification of any kind. Wilwood knock back spring (2.63 lbs.) P/N 800045 may be used as delivered with no modification of any kind;
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maximum of one spring per caliper." P2 Engine Table Spec Line Engine Series
A specification table follows in the original; it is not shown here.
SRF3 Update SRF Bodywork Fitment Rule
#33765 from Robey Clark · Rule change · TB 23-03 (2023-03 Fastrack)
neutralSRF3 tail sections allowed on SRFs with GEN3 airbox shimming up to 19 mm; alternate dash panel P/N 180100 or 180101 relocated in rules.
In Spec Racer Ford, GCR section 9.1.8.D.1.E, change as follows: "j. Optional Bodywork Modification: Viewing the tail section of the car from behind, draw a vertical line at the left and right ends of the outer vents from the bottom edge of the bodywork up to a point two (2) inches below the crease at the lower edge of the vented panel. Make a vertical cut at each line. The horizontal cut is to be one (1) inch below the crease at the base of the vented panel. Leave a one (1) inch radius at each corner. Air Scoop (P/N 190000) must be installed in conjunction with rear cutout per Enterprises installation instructions. SRF3 tail sections are allowed on SRFs. For purposes of tail section to center section fitment with the GEN3 airbox, shimming is allowed at the rear of the center section. Shim material may be up to 19 mm (0.75") thick along the 1" upper square sidepod
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tube. Mounting location cannot be modified or added. Shim material must be securely attached, but must not be welded. An alternate dash panel has been approved for use in Spec Racer Fords. The dash will be furnished by Enterprises only. P/N 180100 or 180101 k. Required Bodywork Modification: A 22.5" diameter wheel arch shall be cut in each side of the tail section. Viewing the tail section from the side, draw a vertical line at the drive axle centerline. Locate the top of the wheel arch at a point measured from the bottom edge of the tail section 9.25" vertically along the centerline. The 22.5" diameter circle intersects the bottom edge of the tail section 11.1" either side of the centerline. The tail section may be reinforced in the forward and aft portions of the wheel arch. Dimension tolerance is +/- 0.75". l. An alternate dash panel has been approved for use in Spec Racer Fords. The dash will be furnished by Enterprises only. P/N 180100 or 180101."
FP Classification Request for 1978 Toyota Celica
#34097 from Bob Pharr · Rule change · TB 23-05 (2023-05 Fastrack)
In FP Spec Lines, classify Toyota Celica (78-80) as follows:
A specification table follows in the original; it is not shown here.
SRF3 Update SRF Front W2 Rain Tire Part Number
#34118 from Robey Clark · Rule change · TB 23-05 (2023-05 Fastrack)
neutralSRF Hoosier front rain tyre part number changes from 46100 to 46101 P185/65R13 W2.
In SRF, GCR section 9.1.8.D.1.X.f, change as follows: "Front – Hoosier P/N 46100 1 P185/65R13 W2"
SRF3 Hoosier SRF Wet Front Tire Rule Update
#34189 from Robey Clark · Rule change · TB 23-06 (2023-06 Fastrack)
unclearSRF Hoosier wet front tire updated to P/N 46100 P185/60R13 H20 or W2.
In SRF, GCR section 9.1.8.D.1.X.f, change as follows: "Wet: Front – Hoosier P/N 46100 P185/60R13 H20 or W2 Rear – Hoosier P/N 46105 P205/60R13 H20 or W2 Ground clearance is 2.5" with driver as raced when P185/60R13 (H20 or W2) tires are used."
neutralFord Fiesta HP and Chevrolet Sonic FP model year ranges extended from 2016 to 2019.
In HP, adjust model years of the "Ford Fiesta (11-16)" spec line as follows: "Ford Fiesta (11-16 9)" In FP, adjust model years of the "Chevrolet Sonic (12-16)" spec line as follows: "Chevrolet Sonic (12-16 9)"
FC USF2000 Van Diemen with Mazda MZR LF-DE 2.0L in FC
#34329 from Formula/Sports Racing Committee · Rule change · TB 23-06 (2023-06 Fastrack)
neutralUSF2000 Van Diemen with Mazda MZR LF-DE 2.0L added as spec line car in FC; removed from FX.
RM 23-07, USF2000 Van Diemen with Mazda MZR LF-DE 2.0L in FC, GCR section 9.1.1.B.1, add a new section and re-letter the following sections accordingly: "c. The USF2000 tube frame Van Diemen car powered by the Mazda MZR LF-DE 2 liter engine is added as a "spec line" car in Formula Continental. Additional "spec line" cars are disfavored, and Balance of Performance (BoP) adjustments to keep "spec line" cars competitive with cars that meet the class formula are likewise disfavored." In FC, GCR section 9.1.1.B.11, add the following: "The only permitted engines are: a. The Ford 2 liter single overhead camshaft "NE" series engine or the 1971-74 Pinto/Capri 2 liter single overhead camshaft
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engine. The specifications are contained in B.15. b. The Ford Zetec ZX3 2 liter dual overhead camshaft engine. The specifications are contained in B.16. c. The Mazda MZR LF-DE 2 liter for use only in USF2000 cars, as described in the Spec Line Cars Table below." In FC, GCR section 9.1.1.B, add the following: In FX, GCR section 9.1.1.J.B, change as follows and renumber the remaining lines accordingly: "3. USF2000 (tube frame) – Shall comply with FRP F2000 Technical Specifications (2018) 4. Pro Formula F2000 (tube frame) – Engine must be prepared to current FC rules." In FX Table 1, remove the USF2000 Tube Frame and Pro Formula F2000 Tube Frame spec lines in their entirety. Spec Line Cars Table
A specification table follows in the original; it is not shown here.
neutralFC tire marking rule clarified: four dry and wet tires for Regionals, eight each for Runoffs; damaged tire replacement procedures revised.
In FC, GCR section 9.1.1.B.10.h, change as follows: "FC shall be is permitted a maximum of four (4) dry tires and four (4) wet tires for all Regional, Major, and Super Tour events; eight (8) dry tires and eight (8) wet tires are permitted for the Runoffs. This rule shall be is effective beginning with the first (1st) qualifying session of the event. Marked tires are not required for testing or practice. It is the competitor's responsibility to ensure that the tires are declared, marked, and logged by Tech in advance of the tire(s) being used in a qualifying session or race. Failure to participate on marked tires will result in a penalty. 1. Use of an undeclared tire shall automatically result in all times being disallowed in that session or finishing position in that race.
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2. If a tire is damaged during a qualifying session or a race, the competitor may replace the damaged tire with a used tire upon approval by the Chief Steward without loss of time or finishing position. Second or subsequent damaged tires may similarly be replaced upon approval by the Chief Steward, however but such shall will result in the loss of grid position in the subsequent race or session; the competitor shall will start at the back of the grid. Replacement of a damaged tire with a new tire upon approval by the Chief Steward will result in loss of grid position in the subsequent race or session."
FP ITC to FP?
#34286 from David Snow · Rule change · TB 23-06 (2023-07 Fastrack)
neutralHP Volkswagen Rabbit Cabriolet 1780 removed; Rabbit 1588 and 1715 reclassified with engine sizes and year ranges specified.
In HP Spec Lines, Volkswagen Rabbit Cabriolet 1780, delete in its entirely: In HP, Spec Lines, Volkswagen Rabbit, change Title as follows: “Volkswagen Rabbit 1588 (includes Cabriolet / convertible)” “Volkswagen Rabbit 1715 (81-84) (excl. conv.)” “Volkswagen Rabbit GTI 1780 (83-84)”
FP Correct Intake Valve Size on 1500cc Midget/Spitfire
#34419 from Production Committee · Rule change · TB 23-06 (2023-05 Fastrack)
neutralFP and HP Sprite, Midget, and Spitfire 1500 intake valve size corrected to 36.6/(1.44).
In FP Spec Lines, Austin-Healey Sprite Mk. I, II,III, IV MG Midget Mk I,II, III, IV & 1500, change Intake Valve Size as follows: "(I) 36.65.3/(1.44)" In FP Spec Lines, Triumph Spitfire Mk. IV & 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire Mk. III & IV 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)"
SRF3 SRF Radiator Rule Update
#34805 from Robey Clark · Rule change · TB 23-10 (2023-10 Fastrack)
neutralSRF radiator rule clarified: P/N 480466 replaceable with Automotive P/N 1R698, CU698 or manufacturer equivalent with documentation.
In SRF, GCR section 9.1.8.D.1.V.j, change as follows: "Radiator - Enterprises new style P/N 480465 (requires baffle P/N 480464) or P/N 480466 can be used. P/N 480466, may can be replaced with Automotive P/N 1R698, CU698 or equivalent OEM manufacturer justified by one cross-reference chart equivalent, as long as the size, shape, and material are the same as the original P/N. The capacity, core thickness, etc., cannot be changed even if allowed under the above. The competitor is responsible for providing this documentation of the cross-reference P/N."
FP Porsche 944/924S Rule Change Request
#35002 from Adam Achepohl · Rule change · TB 23-12 (2023-12 Fastrack)
neutralEP Porsche 944/924S combines 2.5L and 2.7L variants with new weights: 2250–2415 lbs depending on engine and year.
In EP Spec Lines, delete the Porsche 944/924S 2.5L (2V) (83-88) spec line entirely, and create a new spec line for Porsche 944/924S 2.5L(2V) 2.7L(2V) (83-89) as follows:
A specification table follows in the original; it is not shown here.
FP FP and HP Toyota Corolla
#35030 from Keith Church · Rule change · TB 23-12 (2023-12 Fastrack)
fasterFP Toyota Corolla 2TC loses 43 lbs to 1810; HP Corolla loses 50–52 lbs to 1910–2006.
In FP Spec Lines, Toyota Corolla 2TC (71-74), change weight as follows: "1853 1810" In HP Spec Lines, Toyota Corolla (71-74), change weight as follows: “1960 1910 * 2009 1958 ** 2058 2006”
FP Triumph GT6 Adjustments
#35054 from ANTHONY PARKER · Rule change · TB 23-12 (2023-12 Fastrack)
fasterEP Triumph GT6 minimum weight reduced to 1800 lbs.
In EP Spec Lines, Triumph GT6, change weight as follows: "1830 1800"
SRF3 Update SRF Rain / Brake Rule
#34706 from Robey Clark · Rule change · TB 23-09 (2023-09 Fastrack)
neutralSRF rain/brake light now requires Super Bright LEDs Inc. P/N PT-STRB-R24 with specific connector and rain light switch.
In SRF, GCR section 9.1.8.D.1.W.l, change as follows: "A Super Bright LEDs Inc. rain / brake light comprised of a single standard trailer oval lamp, 2-1/4 inches x 6-1/2 inches, with incandescent or LED illumination, P/N PT-STRB-R24, is required in the original roll hoop mounting location. This rule supersedes GCR section 9.3.32.B.2 effective 1/1/2024 through 12/31/2024. No changes may be made to the original 3-pin connector on the wiring harness. The secondary filament of the brake light assembly shall must be connected to a switch enabling its use as a rain light."
SRF3 Update SRF Brake Light Rule v1
#34853 from Robey Clark · Rule change · TB 23-10 (2023-10 Fastrack)
neutralSRF requires Super Bright LEDs P/N PT-STRB-R24 rain/brake light with strobing capability and specific wiring.
In SRF, GCR section 9.1.8.D.1.W.l, change as follows: "A Super Bright LEDs Inc. P/N PT-STRB-R24 (SCCA Enterprises P/N 180427A) rain / brake light, P/N PT-STRB-R24, is required in the original roll hoop mounting location. This rule supersedes GCR section 9.3.32.B.2 effective 1/1/2024 through 12/31/2024. No changes may be made to the original 3-pin connector on the wiring harness. An SCCA Enterprises P/N 1190503 Strobing Brake Light Pigtail is required. The secondary filament of the brake light assembly must be connected to a switch enabling its use as a strobing rain light. A Strobing Brake Light Kit P/N 1168003 is available, which includes the brake light and pigtail."
FC Please correct omitted punctuation
#34890 from Club Racing Board · Rule change · TB 23-10 (2023-09 Fastrack)
neutralF600 Rotax 494, 493, 593 engines now require single expansion chamber and pull starter; electric starter optional.
In Cars and Equipment, GCR section 9.3.33.B.2, add the following: "(Effective 1/1/2024) A red taillight meeting FIA Standard 8874-2019, Technical List No. 76, is required on all Formula (open wheel) and Sports Racing cars." In Appendix F. Technical Glossary, Minimum Weight, change as follows: "Minimum Weight: – Weight specified with driver, exactly as they come off the race circuit, at the conclusion of any race or qualifying session." In FA Table 1, Spec Line E notes, add the following: "Any BD series iron or alloy cylinder block and alternate crankshaft permitted."
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In FC, GCR section 9.1.1.B.11.c, change as follows: "The Mazda MZR LF-DE 2 liter for use only in USF2000 cars, as described in the Spec Line Cars Table below."" In F600, GCR section 9.1.1.D.14, add the following: "Rotax Model 494, Model 493, and Model 593 must use a single expansion chamber and must be equipped with a pull starter; an electric starter may be added." In P1, GCR section 9.1.8.B.J.2, add the following: "Where a flat plate intake restrictor, restricted venturi, or Single Inlet Restrictor (SIR) is required, all intake air for each cylinder or the entire fuel-air mixture, if prepared before this point, must pass through the restrictor."
FP FP data
#35060 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
slowerFP Acura Integra LS and Honda Del Sol VTEC minimum weights increase 25–78 lbs across all configurations.
In FP Spec Line, Acura Integra LS (94-01), change weight as follows: "2235 2260 *2291 2317 **2347 2373" In FP Spec Line, Honda Del Sol VTEC (94-97), change weight as follows: "2190 2265 *2245 2322 **2300 2378"
FP Request to Review Z3 2.5 Spec Line
#35073 from Tim Schreyer · Rule change · TB 24-01 (2024-01 Fastrack)
slowerEP BMW Z3 2.5L weight increases to 2500 lbs, 2563 lbs with turbo, 2625 lbs with supercharger.
In EP spec line, BMW Z3 2.5L, change weight as follows: "2450 2500 *2511 2563 **2573 2625"
FP Corrections to Honda Spec Lines in FP
#35250 from Jonathan Spiegel · Rule change · TB 24-01 (2024-01 Fastrack)
unclearFP Honda throttle body specs corrected: Civic 1.5 to 42", Si to 55", CRX variants adjusted.
In FP Spec Lines, change Fuel Injected Equipped Throttle Body Inside Diameter as follows: Acura Integra GSR (92-93): "58" Honda Civic 1.5 (88-91): "NA 42" Honda Civic EX (90-91): "55" Honda Civic Si (88-91): “42 55” Honda CRX 1.5 (88-91): “33 (primary) 42 (secondary) 42” Honda CRX / CRX Si (84-87): ”42 33 (primary) 42 (secondary)” Honda CRX Si (88-91): ”NA 55”
FP Miata Alternate Head
#35253 from Don Tucker · Rule change · TB 24-01 (2024-01 Fastrack)
fasterEP Mazda MX-5 1.8L 1990-97 minimum weight drops to 2150 lbs; 1994-97 variants to 2000, 2050, 2100 lbs respectively.
In EP Spec Lines, Mazda MX-5 /Miata 1.8L (90-97), change weight as follows: "2200 2150" Mazda MX-5 /Miata (94-97) "2035 2000 *2086 2050 **2137 2100"
FP Triumph GT6 Adjustments
#35255 from Anthony Parker · Rule change · TB 24-01 (2024-01 Fastrack)
In EP spec line, Triumph GT6, make the following change in the Notes section: "Two (2) 1.75” auto-type carburetors @ 1970 40 lbs. Three (3) Weber 40 DCOE on IR manifold with 28mm chokes @ 1990 lbs. Laycock overdrive, May use 5 speed gearbox w/o overdrive. Three (3) Weber 40mm DCOE w/28mm venturi on individual runner manifold @ 2020 lb."
SRF3 SRF / SRF3 Rule Updates
#35268 from Robey Clark · Rule change · TB 24-01 (2024-01 Fastrack)
neutralSRF adds brake duct and pedal extension rules, rear shift cable clamp option, camber limit to 5.0°, radiator opening height 3.5" ±0.5", and P2 engine restrictor changes.
In SRF, GCR section 9.1.8.D.1.H, add the following: "NO MODIFICATIONS ALLOWED. Front brake ducts are required, attached to the openings in the lower radiator baffles, any flexible 4" duct material allowed, installed length minimum 12" maximum 36" in length. Must be securely fastened, Bracket Part # P/N 800368 can be used. Shall Must serve no other purpose. An extension may be welded to the side of the throttle pedal to improve heel-and-toe braking. Master cylinder casting / location must be used as delivered on P/N 180110 Pedal Mounting support. Aeroquip style -3 braided stainless flex lines only, must attach to all brake components without modification. Brake pad "anti-rattle" clips must be removed." In SRF, GCR section 9.1.8.D.1.V, add the following:
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"ii. Rear SADEV shift cable aluminum two-piece style clamp may be used. The P/N WM302007A clamp must serve no other purpose." In SRF, GCR section 9.1.8.D.1.X.k, add the following: "Negative camber shall must not exceed 5.0 degrees absolute maximum front and rear." In SRF, GCR section 9.1.8.D.1.AA.b, add the following: "2. Height of the radiator opening vertical surface 3 1/2“ +/- 1/2"." P2 Engine Table B.1 2008 and older Stock Suzuki, Yamaha, Honda, BMW 38.5mm P2 Engine Table B.2 Not required P2 Engine Table B.3 38.5mm Modified Engine 950 lbs. 1005cc max P2 Engine Table B.1 2008 and older 37mm P2 Engine Table B.2 Not required P2 Engine Table B.3 39mm Stock Engine 1050 lbs.
FP Honda S2000 throttle body
#35272 from Aaron Johnson · Rule change · TB 24-01 (2024-01 Fastrack)
fasterEP Honda S2000 fuel injected throttle body inside diameter increases from 62mm to 64mm.
In EP spec line, Honda S2000, make the following changes to its spec line: Fuel Injected Equipped Throttle Body Inside Diameter: "62 64" Notes: "Comp. Ratio limited to 12.0:1. Valve lift limited to .500”. An adaptor plate can be used to mount the 62mm throttle body from '00-05 to the '06-09 intake manifold. The adaptor plate can be no more than 1.25" thick, and its bore must not exceed the "Fuel Injected Equipped Throttle Body Inside Diameter" maximum spec of 64mm."
FP Correction within Triumph TR8 Spec Line
#35315 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
neutralEP Triumph TR8 dry sump allowance moved from carburetor line to notes section.
In EP spec line, Triumph TR8 (78-81), move the "Dry sump allowed" wording to the appropriate location as follows: Carburetor. No. & Type: “Zenith Stromberg carbs or fuel injection. Dry sump is allowed.” Notes: “Comp. Ratio limited to 12.0:1, Valve lift limited to .500”. Dry sump is allowed.”
FP Correction to EP 924S/944 Spec Line
#35317 from Production Committee · Rule change · TB 24-01 (2024-01 Fastrack)
neutralEP Porsche 944/924S 2.5L and 2.7L weight minimums corrected: 2479cc to 2306/2363 lbs, 2681cc to 2358/2415 lbs.
In EP spec line, Porsche 944/924S 2.5L (2V) / 2.7L (2V) (83-89), change Weight as follows:
A specification table follows in the original; it is not shown here.
In HP Spec Lines, delete the following redundant spec lines in their entirety: Spec line #10 - VW Rabbit Cabriolet 1780 Spec line #3 - VW Scirocco 1588 Spec line #4 - VW Scirocco 1780 (8-valve) (83-88) Spec line #5 - VW Scirocco 1588
FP Update FP Protege (01-03) Model Info
#35715 from Production Committee · Rule change · TB 24-03 (2024-03 Fastrack)
neutralFP Mazda Protégé ES (01-03) model designation updated to include /5 variant.
In FP Spec Lines, Mazda Protégé ES (01-03) change vehicle as follows: "Mazda Protégé ES/5 (01-03)"
FC Four Pot Calipers
#35481 from Steve Jenks · Rule change · TB 24-04 (2024-04 Fastrack)
neutralFC adds F2000 Metrik ZF2 with Ford Zetec engine and four-piston Brembo calipers as spec-line car.
In FC Table FC Charts, add the following: In FC, GCR section 9.1.1.B.1.c, change as follows: "The USF2000 tube frame Van Diemen car powered by the Mazda MZR LF-DE 2 liter engine and the F2000 Metrik ZF2 car equipped with 4-piston calipers is are added as a "spec line" cars in Formula Continental. Additional "spec line" cars are disfavored, and Balance of Performance (BoP) adjustments to keep "spec line" cars competitive with cars that meet the class formula are likewise disfavored." FC Charts Car Engine Wheel Width
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(in) ± .060 Aero Transmission Weight Notes
A specification table follows in the original; it is not shown here.
neutralFP Honda CRX 84-87 can replace plastic front header, rocker skirt, door cap panels with stock-appearance replicas in alternate materials.
In FP spec line "Honda CRX / CRX Si (84-87)", add the following wording to the Notes section: "The plastic OE front header/nose body panel, lower rocker side-skirt, and lower door cap panel can be replaced by a replica, which may be constructed of an alternate material, provided its appearance remains stock."
FP FP data and parity
#35896 from Production Committee · Rule change · TB 24-05 (2024-05 Fastrack)
slowerFP Acura Integra and Honda Civic models now require 55mm Flat Plate Intake Restrictor.
In the following FP spec lines, add the following wording to the Notes section: Acura Integra (90-93) Acura Integra LS (94-01) Acura Integra GSR (92-93) Honda Civic Del Sol VTEC (94-97) Honda Civic Si (99-00) "55mm Flat Plate Intake Restrictor is required."
neutralNissan 300ZX 84-89 classified to EP at 2550 lbs minimum, 2960cc 6-cyl SOHC, fuel injection, 12.0:1 compression limit, 0.500" valve lift limit.
In EP Spec Lines, classify Nissan 300ZX (84-89), as follows:
A specification table follows in the original; it is not shown here.
FP RX7 1993 and Up Request In EP Spec Lines, classify
#36031 from Edward Zabinski · Rule change · TB 24-06 (2024-06 Fastrack)
neutralMazda RX-7 92-97 newly classified EP Prep Level 2 at 2200–2310 lbs with 13B 6-port rotary engine.
Mazda RX-7 (92-97) as follows:
A specification table follows in the original; it is not shown here.
SRF3 SRF3 Alternator Pulley Update In
#36095 from Robey Clark · Rule change · TB 24-06 (2024-06 Fastrack)
fasterSRF3 alternator pulley minimum weight reduced from 12 oz to 11 oz.
SFR3, GCR section 9.1.8.D.2.H.17, change as follows: "Alternator Pulley: P/N G902130, or P/N G902130A, or P/N G902131 (six row). 12 11 oz minimum weight."
FP Clean-up Multiple EP RX-8 Spec Lines In EP
#36156 from Production Committee · Rule change · TB 24-06 (2024-06 Fastrack)
neutralEP Mazda RX-8 (04-11) alternate spec line removed; one primary line remains.
Spec Lines, make the following changes to the two Mazda RX-8 spec lines. Remove spec line entirely: Mazda RX-8 (04-11) Remove the wording "alternate": Mazda RX-8 (04-11)(alternate) Spec Mazda (SM/SMX) None.
neutralHP Volkswagen Golf and Jetta 85-92 track correction: front 1537mm (60.5in), rear 1529mm (60.2in).
In HP Spec Lines, change Track (F/R)mm/(in.) as follows: Volkswagen Golf (GTI, GT, GL) (85-92): "2 1537/1529 (60.5/60.2)" Volkswagen Jetta (GLI, GL) (85-92): "2 1537/1529 (60.5/60.2)"
SRF3 Update Rain Tire Rule and Hoosier Decal Placement
#36436 from Robey Clark · Rule change · TB 24-08 (2024-08 Fastrack)
slowerSRF wet tires: P185/60R13 H20/W2 option removed; P185/65R13 W2 front now required with P205/60R13 W2 rear.
In SRF, GCR section 9.1.8.D.1.X.f, change as follows: "Wet: Front – Hoosier P/N 46100 P185/60R13 H20 or W2 Rear – Hoosier P/N 46105 P205/60R13 H20 or W2 Ground clearance is 2.5” with driver as raced when P185/60R13 (H20 or W2) tires are used. OR Front – Hoosier P/N 46101 P185/65R13 W2 Rear – Hoosier P/N 46105 P205/60R13 W2
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1. It is forbidden to regroove tires. 2. The use of tire warmers or cooling methods other than natural air convection or conduction is prohibited. The penalty for violation will be the loss of qualifying times and/or the disqualification of race results. 3. Hoosier SRF/SRF3 Decal Placement: Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose to the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including SCCA Enterprises."
SRF3 Update to Letter 36619 with new Hoosier Contingency Decal Info
#36624 from Robey Clark · Rule change · TB 24-09 (2024-09 Fastrack)
neutralSRF Hoosier decal requirement reduced from four decals in specific locations to three decals with simpler placement rules.
In SRF, GCR section 9.1.8.D.1.X.f.3, change as follows: "Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose to the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including SCCA Enterprises Per Hoosier's contingency program, three (3) decals are required to qualify for contingency awards. One (1) decal must be located on each side of the car and one (1) decal must be visible on the front."
SRF3 Update SRF3 Air Filter Rule
#36681 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)
unclearSRF3 air filter rule removes K&N RC-9160 option, leaving only P/N WM301020 allowed.
In SRF, GCR section 9.1.8.D.2.H.23, change as follows: "Air Filter: P/N WM301020 or K&N RC-9160"
SRF3 Update SRF Brake Rotor Thickness
#36687 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)
slowerSRF brake rotor minimum thickness increases from 12.20mm to 13.25mm, Wilwood vented rotor P/N 800065.
In SRF, GCR section 9.1.8.D.1.X.g, change as follows: "Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall must be used as delivered with no machining of any kind. Minimum thickness 12.20mm (0.481”) 13.25mm (0.522”)."
FP Errors/emissions Honda Civic/CRX
#36700 from Martin Burk · Rule change · TB 24-10 (2024-10 Fastrack)
fasterFP Honda CRX/CRX Si 84-87 block material changes from Iron to Alum.
In FP Spec Lines, Honda CRX / CRX Si (84-87), change Block Mat'l as follows: "Iron Alum"
SRF3 Hoosier Tire Decal Placement
#36739 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)
neutralSRF3 Hoosier logo placement changes from four decals to three decals in different locations.
In SRF, GCR section 9.1.8.D.2.B, change as follows: "Mandatory identification: "SRF3" near the side car numbers. "Hoosier" logo (4) on both sides front lower outer corners of the nose and each side of the tail. Three (3) "Hoosier" logos, one (1) on each side of the car and one (1) on the center front of the car."
fasterHP Sprite and Midget 1275cc and 1098cc Level 2 compression ratio raised to 12.0:1.
In HP Spec Lines, Austin-Healey Sprite MkI, II, III, IV MG Midget (ALL) - Level 2 - 1275cc, change Notes as follows: "(Effective 11/1/2024) Compression ratio limited to 11 12.0:1" In HP Spec Lines, Austin-Healey Sprite MkI, II, III, IV MG Midget (ALL) - Level 2 - 1098cc, change Notes as follows: "(Effective 11/1/2024) Compression ratio limited to 11 12.0:1"
slowerFC tire limit reduced to four dry and four wet for Regional/Major/Super Tour, eight for Runoffs.
In FC, GCR section 9.1.1.B.10.h, change as follows: "(Effective 11/1/2024) FC is permitted a maximum of four (4) dry tires and four (4) wet tires for all Regional, Major, and Super Tour events; eight (8) dry tires and eight (8) wet tires are permitted for the Runoffs. This is effective beginning with the first (1st) qualifying session of the event. Marked tires are not required for The tire limit does not apply to testing or practice. It is the competitor's responsibility to ensure that the tires are declared, marked, and logged by Tech immediately upon conclusion of the first qualifying session, as provided in the event supplemental regulations, or per the instructions of the Race Director or Chief Steward. in advance of the tire(s) being used in a qualifying session or race. Failure to participate on marked Use of tires in excess of the number allowed will result in a penalty. Failure to participate on declared/marked/logged tires after the time
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prescribed for the same may result in a penalty. If a tire is damaged during a qualifying session or a race, the competitor may replace the damaged tire with a used tire upon approval by the Race Director or Chief Steward without loss of time or finishing position. Second or subsequent damaged tires may similarly be replaced upon approval by the Race Director or Chief Steward, but such will result in the loss of grid position in the subsequent race or session; the competitor will start at the back of the grid. Replacement of a damaged tire with a new tire upon approval by the Race Director or Chief Steward will result in loss of grid position in the subsequent race or session; the competitor will start at the back of the grid."
FC Change FF/FC Weight with Sequential Gearbox
#36651 from Robert Wright · Rule change · TB 24-11 (2024-11 Fastrack)
fasterFF and FC cars with sequential gearbox must add 10 lbs. to minimum weight, down from 25 lbs.
In FF, GCR section 9.1.1.B.20.A.3, change as follows: "Cars running with a sequentially shifted gear box shall must add 25 10 lbs. to minimum weight." In FC, GCR section 9.1.1.B.20.B.4, change as follows: "Cars running with a sequentially shifted gear box shall must add 25 10 lbs. to minimum weight."
FP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line
#37119 from Tim Schreyer · Rule change · TB 25-01 (2025-01 Fastrack)
fasterEP BMW 325i/is E30 (84-91) weight reduced 50–52 lbs across three spec lines to 2150, 2204, 2258.
In EP SPEC LINES, BMW 325i/is (E30) (84-91), change Weight as follows: "2200 2150 *2255 2204 **2310 2258"
FP Fix Error in Spridget Spec Line
#37437 from Jason Stine · Rule change · TB 25-01 (2025-01 Fastrack)
neutralFP Spridget and Midget 1275cc and 1500cc spec line corrections to bore, stroke, displacement, and valve sizes.
In FP SPEC LINES, Austin-Healey Sprite Mk. I, II,III, IV MG Midget Mk I,II, III, IV & 1500, change the following: 1275cc: Bore x Stroke: "68.1x78.4 (2.68x3.09) 70.6x81.3 (2.78x3.20)" Displacement: "(77.78) 1275" Valves IN & EX: "(I) 32.1/(1.26) (E) 28.4/(1.12) (I) 33.3/(1.31) (E) 29.5/(1.16)" 1500cc: Bore x Stroke: "1.1x84.3 73.7x87.4 (2.90x3.44)" Displacement: "1491 (90.95) 1493"
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Valves IN & EX: "(I) 36.6/(1.44) (E) 28.7 29.7/(1.17)"
FP Create ruleset that allows GTL cars to run in FP
#37485 from Club Racing Board · Rule change · TB 25-01 (2025-01 Fastrack)
neutralF Production now allows GT-Lite cars meeting Appendix N specifications to compete, effective 2025-01-01.
“(Effective January 1, 2026) (Effective January 1, 2025)." Any GT-Lite (GTL) car meeting all of the requirements of Appendix N GT-LITE CATEGORY SPECIFICATIONS for inclusion into F PRODUCTION" may compete in the F-Production class. For GTL cars competing in FP, the level of preparation and modifications will be determined by Appendix N and not by PCS 9.1.5.”
neutralFP GTL Volkswagen Jetta Mark IV 4dr FWD 98.2 wheelbase newly classified.
In FP Spec Lines, Appendix N, GTL-FP Cars - Volkswagen, classify Jetta Mark - IV as follows: GTL-FP Cars - VOLKSWAGEN Model Years Body Style Drive-line Wheelbase (in) Notes Jetta Mark - IV 4dr FWD 98.2
FP GTL/FP consolidation 2025 Rules
#37659 from James Gregorius · Rule change · TB 25-03 (2025-03 Fastrack)
neutralFP Spec Lines option: carburettor chokes permitted as alternative to SIR, same size as listed SIR.
In FP Spec Lines, Appendix N: L.9, Fuel Injection System, add the following: "As an option, induction system “Chokes” may be used where a SIR is required. Said chokes shall be fitted to each barrel of carburetor/throttle body and all airflow into engine must pass through them. Choke size will be the same as listed SIR unless noted."
FP Request for Classification of Chevrolet Spark
#37755 from Kristian Smith · Rule change · TB 25-04 (2025-04 Fastrack)
neutralChevrolet Spark 16-22 classified HP Pre at 1850 lbs minimum weight, fuel injected, 1399 cc.
In HP Spec Lines, classify the Chevrolet Spark (16-22):
A specification table follows in the original; it is not shown here.
FP Request to Lower Ford Festiva Minimum Weight to 1600 LBS
fasterHP Ford Festiva 88-93 minimum weight drops to 1600 lbs, variants to 1640 and 1680 lbs; compression ratio raised to 11.0:1.
In HP Spec Lines "Ford Festiva (88-93)" change as follows: Weight: "1700 1600 *1743 1640 **1785 1680" Notes: "Compression ratio limited to 10.5 11.0:1. Valve lift limited to .450”."
SRF3 Driver Safety & Comfort
#37966 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)
neutralSRF drivers with disabilities may modify seat and controls for safety and comfort with approval and logbook notation.
In SRF, GCR section 9.1.8.D.1.D, add the following: "f. Driver Safety and Comfort modifications to seat and controls for drivers with disabilities may be made only by approval. These modifications must be reported to SCCA Enterprises and noted in the car logbook. The modifications are approved only for the noted driver with disabilities. If the car is used by or sold to another driver, it must be returned to the previous standard configuration."
SRF3 Update SADEV transmission specs
#37992 from Club Racing Board · Rule change · TB 25-04 (2025-04 Fastrack)
Effective 9/1/25 in SRF, GCR section 9.1.8.D.1.V.ff, add the following: "SRF3 Oil Cooler, P/N G480503 may be used as mounted per the GEN3 Assembly Manual. No fan permitted for SRF. HD Oil Cooler kit P/N G1148500 may be used as mounted per the GEN3 Conversion Manual." Effective 9/1/25 in SRF, GCR section 9.1.8.D.X.g, change as follows: "Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 must be used as delivered with no machining of any kind. Minimum thickness 13.25mm (0.522”). The Renault Alliance solid front rotors may not be used. Rubber caliper bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185. Original caliper pistons may be replaced with vented caliper piston P/N 1196184; no other modification allowed. Wilwood caliper with bracket universal fit P/N 800038
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may be used as delivered with no modification of any kind. Wilwood knock back spring (2.63 lbs.) P/N 800045 may be used as delivered with no modification of any kind; maximum of one spring per caliper. 1. Hawk Blue pads P/N 801993 only 2. Wilwood Vented Rotor P/N 800065 only, as delivered, with no machining of any kind. Minimum thickness 13.25mm (0.522") 3. Wilwood universal caliper Kit P/N 1180008 as delivered, caliper only P/N 800038; Wilwood knock back spring P/N 800045 may be used as delivered, with no machining of any kind, and only one spring per caliper 4. Renault caliper rubber bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185A 5. Renault caliper piston may be replaced with P/N 1196184 vented piston as delivered, with no machining of any kind 6. Girling .750" Master Cylinder P/N 880358 as delivered, with no machining of any kind 7. Wilwood .750" Master Cylinder P/N 880357 as delivered, with no machining of any kind 8. Tilton .750" Master Cylinder P/N 880360 as delivered, with no machining of any kind"
SRF3 Add HD Oil Cooler
#38979 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)
neutralSRF3 adds HD Oil Cooler P/N G1148500 as alternative to standard cooler P/N G480503.
In SRF, GCR section 9.1.8.D.1.V.ff, change as follows: "SRF3 Oil Cooler, P/N G480503 or HD Oil Cooler P/N G1148500 may be used as mounted per the GEN3 Assembly Manual. No fan permitted for SRF. HD Oil Cooler kit P/N G1148500 may be used as mounted per the GEN3 Conversion Manual."
FP HP Plymouth Arrow spec omission
#38995 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralHP Plymouth Arrow transmission max speeds clarified to 4 or 5.
In HP Spec Lines, Plymouth Arrow (76-80), add the following wording to Trans. Speeds(max): "4 or 5"
FP Add Wheel Diameter to Appendix G
#39008 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralEP, FP, HP wheel diameter added to Appendix G as absolute maximum specification.
In Appendix G.2.3, change as follows: "Rim width and diameter are is absolute maximums."
FP Add TB ID tolerance to general Prod rules
#39009 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
neutralEP, FP, HP throttle body inside dimensions must remain stock with +/-.25mm tolerance; butterfly dimensions stock in FP, HP only.
In GCR, Section 9.1.5.E., change as follows: 9.1.5.E.1.b.4: "The inside dimensions of the throttle body casting/housing (as measured at the throttle butterfly) must remain stock (tolerance of +/-.25mm), but the throttle body can otherwise be ported and polished." 9.1.5.E.2.b.4: "The inside dimensions of the throttle body casting/housing and all dimensions of the throttle butterfly must remain stock (tolerance of +/-.25mm)."
FP Please Lower Weight of 280Z
#38871 from Matthew Miller · Rule change · TB 25-09 (2025-09 Fastrack)
fasterEP Nissan 280Z minimum weight reduced from 2560 to 2400 lbs.
In EP Spec Lines, Nissan 280Z, change Weight (lbs) as follows: "(Effective 11/1/2025) 2560 2400 *2624 2460 **2688 2520"
FP Miata Weight Adjustment Follow Up
#38949 from Don Tucker · Rule change · TB 25-10 (2025-10 Fastrack)
fasterEP Mazda MX-5 1.8L 90-97 weight reduced to 2125 lbs from 2150 lbs.
In EP Spec Lines, Mazda MX-5 / Miata 1.8L (90-97), Effective 11/1/2025 make the following weight change: "2150 2125"
FP Weight Break for 1098 Midget / Sprite
#38970 from Kendall Jones · Rule change · TB 25-10 (2025-10 Fastrack)
In HP Spec Lines, Austin-Healey Sprite/Midget 1098cc, Effective 11/1/2025make the following weight change: "1630 1550"
FP HP Volvo 142 spec omission
#38994 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
slowerHP Volvo 142/142E gains compression ratio limit 12.0:1 and valve lift limit .425".
In HP Spec Lines, Volvo 142/142E P-1800 Engine, Effective 11/1/2025 add the following wording to Notes: "Comp. Ratio limited to 12.0:1. Valve lift limited to .425”."
FP HP Mini DOHC 1.6
#38996 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)
slowerHP Mini Cooper 07-15 valve lift reduced to .390", from .450".
In HP Spec Lines, Mini Cooper (07-13) (includes 09-15 convertible and 12-15 Coupe), Effective 11/1/2025 make the following changes to the Notes: "Compression ratio limited to 11.0:1, Valve lift limited to .450”.390"."
FP 83-88 FP Scirocco Spec Line Creation
#38997 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralFP Scirocco 83-88 established as spec line with 1733–1803 lbs, 1715–1780 cc SOHC, 40/33 mm valves, Solex carbs or fuel injection.
In FP Spec Lines, classify Volkswagen Scirocco (83-88) as follows:
A specification table follows in the original; it is not shown here.
FP Add to Rabbit description
#39019 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralFP and HP Volkswagen Rabbit descriptions updated: Convertible changed to Cabriolet in FP; Cabriolet added to three HP engine variants.
In FP Spec Lines, make the following spec line correction: "Volkswagen Rabbit (Includes Convertible Cabriolet)" In HP Spec Lines, make the following spec line correction: "Volkswagen Rabbit 1588 (Includes Cabriolet)" "Volkswagen Rabbit 1715 (Includes Cabriolet)" "Volkswagen Rabbit 1780 (Includes Cabriolet)"
FP Clean-up 9.1.5.E.7e
#39025 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralEP, FP, HP: rear drum brake to disc conversion clarified; rotors solid, diameter limited to largest front rotor permitted.
In GCR, Section 9.1.5.E.7., change as follows: "e. Cars fitted with rear drum brakes, can convert to rear disc brakes without penalty. Note that the “Brakes Std.” and “Brakes Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes stock, from converting to rear disc brakes under this rule. When converting from rear drum brakes to rear disc brakes: 1. Rear brake rotors must be solid and can be no larger in diameter than the largest permitted front brake rotor, as defined on the vehicle’s spec line. 2. Rear calipers and mounting brackets are unrestricted but must be made of a ferrous or aluminum material. The standard and alternate brake listings on a vehicle’s specification line, does not prohibit a car that was fitted with rear drum brakes as stock
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from converting to rear disc brakes under this rule. 3. The “Brakes Std.” and “Brakes Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes as stock from converting to rear disc brakes under this rule."
FP Add TB size to Ford Mustang (94-98) Spec Line
#39130 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
neutralEP Ford Mustang (94-98) fuel injected throttle body inside diameter specified at 60.
In EP Spec Lines, Ford Mustang (94-98) add the following to the Fuel Injected Equipped Throttle Body Inside Diameter column: "60"
FP Correct Existing VW Scirocco Spec Line
#39140 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)
fasterFP Volkswagen Scirocco: remove two engine variants (1715cc and 1780cc), lighten one variant to 1663 lbs, allow 15×7 wheels instead of 13×7.
In FP Spec Lines, Volkswagen Scirocco, change spec line as follows:
A specification table follows in the original; it is not shown here.
FP TR2 Notes E&O
#39180 from Anthony Parker · Rule change · TB 25-12 (2025-12 Fastrack)
unclearEP Triumph TR2-TR4A allows 5-speed gearbox without overdrive; removes Weber carb and weight specification.
In EP Spec Lines, Triumph TR2, 3, 3A, 4, 4A, TR4, TR4A, IRS, make the following change to the Notes: "Front apron assembly may be made of alternate material. Three (3) Weber 40 DCOE on IR manifold with 28mm chokes @ 1990 lbs. Laycock overdrive, may use 5 speed gearbox without overdrive."
FP Balance of Power
#39187 from Jim Simaras · Rule change · TB 25-12 (2025-12 Fastrack)
slowerEP BMW Z3 2.5L restrictor reduced 52mm to 50mm, weight increased to 2550 lbs base; five other BMW models get smaller restrictors.
In EP Spec Lines, make the following changes to Restrictors: BMW Z3 2.5L: "52mm 50mm Flat Plate Intake Restrictor" BMW Z3 2.8L (97-00): "55mm 53mm Flat Plate Intake Restrictor" BMW 328i/is E36 (96-99): "58mm 55mm Flat Plate Intake Restrictor" BMW 328i/ci E46 (01-06): "58mm 55mm Flat Plate Intake Restrictor" BMW 325i/is (E46) (01-06): "56mm 53mm Flat Plate Intake Restrictor" BMW 325is M-Technic (1994): "56mm 53mm Flat Plate Intake Restrictor" BMW 325i/is E-36 (92-95): "56mm 53mm Flat Plate Intake Restrictor"
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In EP Spec Lines, BMW Z3 2.5L, change Weight as follows: "2500 2550 *2563 2614 **2625 2678"
FP Competition Adjustment Request
#39259 from David Strittmatter · Rule change · TB 25-12 (2025-12 Fastrack)
fasterFP Lancia Scorpion minimum weight drops 80 lbs, to 1950.
In FP Spec Lines, Lancia Scorpion, change Weight as follows: "2030 1950"
FP Factory Roll Bar Removal on VW Convertible
#39268 from Tim Linerud · Rule change · TB 25-12 (2025-12 Fastrack)
neutralFP Volkswagen Rabbit Convertible no longer required to remove factory roll bar.
In FP Spec Line, Volkswagen Rabbit (Includes Convertible), remove the following wording in Notes: "Factory roll bar must be removed on Cabriolet."
#38927 from Rock Beauchamp · Rule change · TB 26-01 (2026-01 Fastrack)
neutralFC USF2000 Tube Frame may use Hewland LD200 4-speed H-pattern as alternative to Hewland JL-200 5-speed sequential.
In FC Charts table, USF2000 Tube Frame spec line, add the following to the Notes: "Cars originally built with the Hewland LD200 4-speed H-pattern may use that transmission as an alternative to the Hewland JL- 200 5-speed sequential transmission."
FC Adjust F2000 Metrik ZF2 weight
#39612 from Club Racing Board · Rule change · TB 26-01 (2026-01 Fastrack)
fasterFC F2000 Metrik ZF2 minimum weight reduced to 1220 lbs.
In FC Charts table, F2000 Metrik ZF2 spec line, change the Weight as follows: "1240 1220"
FP Request Toyota 5E Series Engines
#38208 from Scott Schick · Rule change · TB 26-02 (2026-02 Fastrack)
neutralFP class adds Toyota 5E DOHC 1497cc engine, 1900 lbs minimum weight, 23mm SIR induction.
In FP Appendix N, add spec line for the Toyota 5E engine to the "Engines - TOYOTA" section:
A specification table follows in the original; it is not shown here.
FP Request for Toyota 4E Series Engines
#38209 from Scott Schick · Rule change · TB 26-02 (2026-02 Fastrack)
neutralFP Toyota 4E DOHC 1331cc engine added to Appendix N with 1900 lbs minimum weight.
In FP Appendix N, add spec line for the Toyota 4E engine to the "Engines - TOYOTA" section:
A specification table follows in the original; it is not shown here.
FP Dual Carbs for the Fiat X1/9
#39593 from Daniel Snow · Rule change · TB 26-02 (2026-02 Fastrack)
unclearFP Fiat X1/9 gains dual carburetor options with 28mm side-draft alternates and revised valve/transmission specs.
In FP Spec Lines, change as follows: Fiat X-1/9 & Bertone 1300: "(1) Weber 32 DMTR or DATRA/100 w/32mm bores (1) 40 DCNF w/32mm choke(s) (2) auto-type side-draft w/28mm choke(s) on I.R. manifold Orientation of the alternate carburetor is unrestricted. The alternate carb adapter may not be thicker than 1.25”. The adapter may have a bore larger than the throttle bore of the approved alternate carburetor. Valve Size: (I) 35.5/(1.40) (E) 31.3/(1.23)30.5/(1.20) (E) 1.23
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Trans. Speeds: 5" Fiat X-1/9 & Bertone: "Fuel Injection (1) 34 DMTR, (1) 36 DCNF w/34mm choke(s), or (1) 40DCNF w/34mm choke(s) (1) 36 or 40 DCNF w/34mm choke(s) (2) auto-type side-draft w/28mm choke(s) on I.R. manifold Orientation of the alternate carburetor is unrestricted. The alternate carb adapter may not be thicker than 1.25”. The adapter may have a bore larger than the throttle bore of the approved alternate carburetor. Valve Size: (I) 35.5/(1.40) (E) 33.0/(1.30) Trans. Speeds: 5 or 4"
What the rules allowed changed as listed; this does not say what any particular car ran.