This track has been raced on 2 configurations (Scoring Sidebar Race, 4.05 mi; 4.01 mi). Laps on different configurations are not comparable, so only events on the 4.05 mile layout are shown; switch above to see the others.
Sectors are not comparable across all of these events. Sector times and the theoretical lap use Runoffs 2025, Runoffs 2026 only. Runoffs 2020 (different number of sectors), Runoffs 2024 (different number of sectors) count towards whole-lap times and trap speed only.
Official results win over the timing feed: the live timing recorded a 2:27.925 for Brandon Lavender in Runoffs 2026 FF/F6 National Championship Race, but the official results credit 2:28.293 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too.
3 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 → I4AT 1.26 mi
S2 I4AT → I11 1.65 mi
S3 I11 → I13AB 0.57 mi
S4 I13AB → SF 0.57 mi
SF Spd SF → SFT 0.02 mi
Spd I4AT → I4A 0.02 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
S4
Mygale SJ14 Honda
FF
5
2:22.057Sebastian Mateo Naranjo
2:23.047David Ybarra
2:22.057Sebastian Mateo Naranjo
137.2Jonathan Kotyk
41.055David Ybarra
54.273David Ybarra
27.830David Ybarra
19.234David Ybarra
Mygale SJ14 Honda
FF
2
2:22.057Sebastian Mateo Naranjo
2:23.047David Ybarra
2:22.057Sebastian Mateo Naranjo
135.8Sebastian Mateo Naranjo
41.055David Ybarra
54.273David Ybarra
27.830David Ybarra
19.234David Ybarra
Mygale SJ14
FF
3
2:23.226Jonathan Kotyk
2:23.226Jonathan Kotyk
2:24.269Jonathan Kotyk
137.2Jonathan Kotyk
Piper DL7 Honda
FF
9
2:22.489Calvin Kautz
2:22.552Calvin Kautz
2:22.489Calvin Kautz
140.7Calvin Kautz
41.473Calvin Kautz
54.965Theodore Burns
27.881Theodore Burns
19.364Theodore Burns
Piper DF3D Honda
FF
1
2:22.489Calvin Kautz
2:22.552Calvin Kautz
2:22.489Calvin Kautz
140.7Calvin Kautz
41.473Calvin Kautz
55.315Calvin Kautz
27.898Calvin Kautz
19.451Calvin Kautz
Piper DF05 Honda
FF
2
2:22.662Theodore Burns
2:23.009Theodore Burns
2:22.662Theodore Burns
136.6Theodore Burns
41.698Theodore Burns
54.965Theodore Burns
27.881Theodore Burns
19.364Theodore Burns
Piper DL7 Honda
FF
5
2:22.670William Ferguson
2:23.552Antonio Costantino
2:22.670William Ferguson
138.1Antonio Costantino
41.787Eric Poulsen
55.373Parker Gill
28.067Parker Gill
19.583Michael Dowden
Piper DF3D
FF
1
2:23.980Tim Kautz
2:23.980Tim Kautz
2:24.419Tim Kautz
136.3Tim Kautz
Swift DB6 Honda
FF
3
2:22.648Jonathan Kotyk
2:22.733Jonathan Kotyk
2:22.648Jonathan Kotyk
137.5Nathan Down
41.567Jonathan Kotyk
54.599Jonathan Kotyk
27.789Jonathan Kotyk
19.227Jonathan Kotyk
Swift SE1 Ford
FF
1
2:22.648Jonathan Kotyk
2:22.733Jonathan Kotyk
2:22.648Jonathan Kotyk
137.0Jonathan Kotyk
41.567Jonathan Kotyk
54.599Jonathan Kotyk
27.789Jonathan Kotyk
19.227Jonathan Kotyk
Swift DB6 Honda
FF
1
2:22.818Nathan Down
2:25.276Nathan Down
2:22.818Nathan Down
137.5Nathan Down
41.716Nathan Down
54.721Nathan Down
27.923Nathan Down
19.395Nathan Down
Swift DB6
FF
1
2:29.746Wes Allen
2:30.504Wes Allen
2:29.746Wes Allen
130.6Wes Allen
Mygale SJ12
FF
1
2:22.916Simon Sikes
2:22.916Simon Sikes
2:24.661Simon Sikes
135.4Simon Sikes
Spectrum FF1600 Honda
FF
2
2:23.011Tazio Stefanelli
2:23.628Tazio Stefanelli
2:23.011Tazio Stefanelli
138.9Tazio Stefanelli
41.269Tazio Stefanelli
54.546Cooper Travis
27.886Cooper Travis
19.326Tazio Stefanelli
Spectrum FF1600 Honda
FF
1
2:23.011Tazio Stefanelli
2:23.628Tazio Stefanelli
2:23.011Tazio Stefanelli
138.9Tazio Stefanelli
41.269Tazio Stefanelli
55.399Tazio Stefanelli
28.108Tazio Stefanelli
19.326Tazio Stefanelli
Spectrum F1600 Honda
FF
1
2:24.270Cooper Travis
2:25.176Cooper Travis
2:24.270Cooper Travis
135.7Cooper Travis
41.541Cooper Travis
54.546Cooper Travis
27.886Cooper Travis
19.332Cooper Travis
Van Diemen DP08 Honda
FF
2
2:23.170Demetrios Constantinidis
2:25.676Demetrios Constantinidis
2:23.170Demetrios Constantinidis
137.3Demetrios Constantinidis
43.869James Dietz
57.593James Dietz
29.509James Dietz
20.345James Dietz
Van Diemen DP08 Honda
FF
1
2:23.170Demetrios Constantinidis
2:25.676Demetrios Constantinidis
2:23.170Demetrios Constantinidis
137.3Demetrios Constantinidis
Van Diemen RF03 Honda
FF
1
2:31.495James Dietz
2:32.801James Dietz
2:31.495James Dietz
132.6James Dietz
43.869James Dietz
57.593James Dietz
29.509James Dietz
20.345James Dietz
Van Diemen RF99 Honda
FF
3
2:24.251Andrew Moran
2:24.251Andrew Moran
2:25.886Andrew Moran
136.4Andrew Moran
41.452Andrew Moran
55.042Andrew Moran
27.840Andrew Moran
19.378Andrew Moran
Van Diemen RF99 Honda
FF
2
2:24.251Andrew Moran
2:24.251Andrew Moran
2:25.886Andrew Moran
136.4Andrew Moran
41.452Andrew Moran
55.042Andrew Moran
27.840Andrew Moran
19.378Andrew Moran
Van Diemen RF99 Ford
FF
1
2:25.469Russell J Ruedisueli
2:25.469Russell J Ruedisueli
2:26.930Russell J Ruedisueli
132.3Russell J Ruedisueli
42.098Russell J Ruedisueli
55.664Russell J Ruedisueli
28.232Russell J Ruedisueli
19.719Russell J Ruedisueli
Van Diemen RF00 Honda
FF
5
2:24.268Jeffrey Bartz
2:24.297Jeffrey Bartz
2:24.268Jeffrey Bartz
138.1Jeffrey Bartz
41.598Demetrios Constantinidis
55.118Demetrios Constantinidis
28.080Demetrios Constantinidis
19.431Demetrios Constantinidis
Van Diemen RF00
FF
1
2:24.268Jeffrey Bartz
2:24.297Jeffrey Bartz
2:24.268Jeffrey Bartz
138.1Jeffrey Bartz
Van Diemen RF00 Honda
FF
3
2:24.320Demetrios Constantinidis
2:24.320Demetrios Constantinidis
2:24.985Demetrios Constantinidis
137.7Robert Dietz
41.598Demetrios Constantinidis
55.118Demetrios Constantinidis
28.080Demetrios Constantinidis
19.431Demetrios Constantinidis
Van Diemen RF00 Ford
FF
1
2:26.982Russell J Ruedisueli
2:26.982Russell J Ruedisueli
133.7Russell J Ruedisueli
42.671Russell J Ruedisueli
55.856Russell J Ruedisueli
28.279Russell J Ruedisueli
19.971Russell J Ruedisueli
Spectrum 014H
FF
2
2:25.050Max Mallinen
2:25.358David H Livingston Jr.
2:25.050Max Mallinen
134.3David H Livingston Jr.
Vestial 09F
FF
1
2:25.312Bill Kephart
2:25.312Bill Kephart
2:26.368Bill Kephart
133.8Bill Kephart
Mygale SJ11
FF
1
2:25.383Burton Kyle August
2:25.463Burton Kyle August
2:25.383Burton Kyle August
136.0Burton Kyle August
Swift DB1 Ford
FF
2
2:25.916Nic Sheppard
2:29.027Nic Sheppard
2:25.916Nic Sheppard
131.5Nic Sheppard
42.231Nic Sheppard
55.168Nic Sheppard
28.565Nic Sheppard
19.708Nic Sheppard
Swift DB1 Ford
FF
1
2:25.916Nic Sheppard
2:29.027Nic Sheppard
2:25.916Nic Sheppard
131.5Nic Sheppard
42.231Nic Sheppard
55.168Nic Sheppard
28.565Nic Sheppard
19.708Nic Sheppard
Swift DB1
FF
1
2:38.166Alan Murray
2:38.166Alan Murray
2:38.532Alan Murray
122.6Alan Murray
Van Diemen RF95 Honda
FF
1
2:26.046Brandon Lavender
2:26.046Brandon Lavender
2:26.860Brandon Lavender
136.1Brandon Lavender
42.187Brandon Lavender
55.479Brandon Lavender
28.451Brandon Lavender
19.607Brandon Lavender
Van Diemen RF02 Honda
FF
2
2:26.616Andrew MacDougall
2:26.616Andrew MacDougall
2:26.936Andrew MacDougall
135.0Jay Messenger
42.358Andrew MacDougall
55.446Andrew MacDougall
28.367Andrew MacDougall
19.698Andrew MacDougall
Citation FF
FF
1
2:28.543Bob Reid
2:28.543Bob Reid
2:29.103Bob Reid
129.8Bob Reid
Van Diemen RF98 Ford
FF
2
2:29.416Dale Evans
2:29.416Dale Evans
2:30.762Dale Evans
131.3Dale Evans
42.908Dale Evans
56.373Dale Evans
29.071Dale Evans
20.123Dale Evans
Van Diemen RF98 Honda
FF
1
2:29.416Dale Evans
2:29.416Dale Evans
2:30.762Dale Evans
131.3Dale Evans
42.908Dale Evans
56.373Dale Evans
29.071Dale Evans
20.123Dale Evans
Van Diemen RF98 Ford
FF
1
2:35.033Roberto Reina
2:35.563Roberto Reina
2:35.149Roberto Reina
126.1Roberto Reina
44.577Roberto Reina
58.740Roberto Reina
30.009Roberto Reina
20.741Roberto Reina
Van Diemen RF01 Honda
FF
1
2:33.529Megan Ruedisueli_Weese
2:33.850Megan Ruedisueli_Weese
2:33.529Megan Ruedisueli_Weese
130.3Megan Ruedisueli_Weese
43.534Megan Ruedisueli_Weese
59.224Megan Ruedisueli_Weese
29.904Megan Ruedisueli_Weese
20.429Megan Ruedisueli_Weese
Van Diemen Honda
FF
1
2:34.574Tom Porter
2:34.772Tom Porter
2:34.574Tom Porter
129.5Tom Porter
44.460Tom Porter
59.076Tom Porter
29.627Tom Porter
20.371Tom Porter
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
Runoffs 2020 → Runoffs 2024 2020-10-02 to 2024-10-01
FF Allow Optional Coolant Bleed Line to Correct a Known Problem
#29673 from Nick Fuhs · Rule change · TB 20-12 (2020-12 Fastrack)
neutralFF class cylinder head may now have optional coolant bleed line fitting to top of head for air release.
In GCR section 9.1.1.B.14.f.3, change as follows: "The cylinder head must not be ported, polished or machined. The original casting must not be modified in any way or polished, with the following exception: A pipe thread fitting may be installed at the top of the cylinder head with a return line to the swirl tower to allow any trapped air or overheated coolant to escape."
FF Clarification regarding Honda LC1 ECU implementation date
#29684 from Formula/Sports Racing Committee · Rule change · TB 20-12 (2020-12 Fastrack)
neutralFF Honda LC1 ECU by HPD permitted effective 12/1/2020, must use HPD lambda sensor.
In FF, GCR section 9.1.1.B.14.p.3, change as follows: "The LC1 ECU supplied by HPD will be is permitted on a date to be determined effective 12/1/2020 and must be used with a corresponding lambda sensor supplied by HPD. Implementation date is contingent on SCCA National office receiving necessary and sufficient quantities of support materials."
FF Kent crankshaft clarification
#30426 from Formula/Sports Racing Committee · Rule change · TB 21-04 (2021-04 Fastrack)
neutralFF block relief permitted only as needed to fit allowed crankshaft.
In FF, GCR section 9.1.1.B.12.b, add a new section as follows: “5. The block may be relieved in those areas only as required to allow the fitment of a permitted crankshaft.”
FF Add Fast Forward Part Numbers for Honda Fit Engine
#33752 from Formula/Sports Racing Committee · Rule change · TB 23-03 (2023-03 Fastrack)
neutralFF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components.
In FC/FF, GCR section 9.1.1.B.14.a.6, change as follows: "For all Honda part numbers in these specifications, superc seding part numbers are considered equivalent. In FC/FF, GCR section 9.1.1.B.14.f.5, change as follows: "Cylinder head breather restrictor must be used as supplied by HPD or Fast Forward, unmodified.: HPD PN: 15262-F21S-A200; Fast Forward PN: FF200-503." In FC/FF, GCR section 9.1.1.B.14.k.2, change as follows: "The upper manifold, air box and throttle body assembly must be used as delivered from Honda, HPD, or Fast Forward as noted below."
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In FC/FF, GCR section 9.1.1.B.14.k.2, insert as follows: "a. Intake manifold: HPD PN: 17210-F21S-A210; Fast Forward PN: FF200-201. b. Throttle body: Honda Fit: PN: 16400ZZ5024; HPD PN: 16400ZZ5024; Fast Forward PN: FF200-104. c. Throttle lever: HPD PN: 17330-F21S-A210; Fast Forward PN: FF200-101." In FC/FF, GCR section 9.1.1.B.14.k.3, change as follows: "All gaskets and sensors utilized on the inlet manifold from head to throttle body must be Honda Fit OEM, or HPD supplied or Fast Forward as noted below. a. Gasket In. manifold: HPD PN: 17105-RB0-004, Honda Fit OEM. b. Gasket, EGR chamber cover: HPD PN: 17146-RB0-004, Honda Fit OEM. c. Gasket In. port: HPD PN: 17115-RB0-007, Honda Fit OEM. d. Gasket, restrictor: HPD PN: 17399-F21S-A200, (2 required) HPD; Fast Forward PN: FF200-109. Two required." In FC/FF, GCR section 9.1.1.B.14.k.5, change as follows: "The Honda Fit engine is required to have an HPD supplied air inlet restrictor supplied by HPD or Fast Forward: HPD PN: 17344- F21S-A201; Fast Forward PN: FF200-110, with internal diameter of 30.5mm and thickness of 3.175mm (0.125 inches) correctly installed within the intake system." In FC/FF, GCR section 9.1.1.B.14.m.1, change as follows: "The exhaust manifold must be as supplied by HPD or Fast Forward:, HPD part # PN: 18150-F21S-A200 or # PN: 1818 50-F21S-B200; Fast Forward PN: FF500-001 or PN: FF500-002." In FC/FF, GCR section 9.1.1.B.14.n.1, change as follows: "The oil pan, baffle plate, and scavenge pump filter fittings must be as supplied by HP or Fast Forward as noted below. No modifications are permitted. a. Oil pan: HPD PN: 11200-F21S-A210 or PN: 11200-F21S-C240; Fast Forward PN: FF100-201A or PN: FF100-201B. b. Oil pan baffle plate: HPD PN: 11221-F21S-A210; Fast Forward PN: FF100-202. c. Oil scavenge pump filter fittings (2 required): HPD PN: 15180-F21S-A210; Fast Forward PN: FF100-204." In FC/FF, GCR section 9.1.1.B.14.n.3, change as follows: "The scavenge pump and internal scavenge pump parts must be as supplied from HPD or Fast Forward as noted below." In FC/FF, GCR section 9.1.1.B.14.n.3, change as follows: "b. Rotor outside diameter: HPD 44.400mm (1.748 inches):; Fast Forward 40.640mm (1.600 inches). c. Scavenge pump rotor set: HPD PN: 15450-F21S-A20; Fast Forward PN: FF100-110. d. Oil pump: HPD PN: 15100-F21S-A200; Fast Forward PN: FF100-100A. e. Scavenge pump cartridge: 15111-F21S-A21; Fast Forward PN: FF100-127. f. Scavenge pump port A: HPD PN: 15137-F21S-A20; Fast Forward PN: FF100-101. g. Scavenge pump port B: HPD PN: 15139-F21S-A20; Fast Forward PN: FF100-102. h. Scavenge pump shaft: HPD PN: 15510-F21S-A20; Fast Forward PN: FF100-103. i. Scavenge pump front cover: HPD PN: 15070-F21S-A21; Fast Forward PN: FF100-104."
neutralFF Honda Fit gains Fast Forward FF800-100 oversize piston ring pack option.
In FF, GCR section 9.1.1.B.14.e.3.a, add the following: "The standard ring pack, PN 13011-RB1-004 (Riken) or 13011-RB1-006 (Nippon), or the oversize ring pack, PN 13021-RB7-Z01 (Riken), or 13021-RB7-Z02 (Nippon), or FF800-100 (Fast Forward), may be used."
FF Update to FF EGR Blanking Plate Rule
#36633 from Matt Boian · Rule change · TB 24-10 (2024-10 Fastrack)
neutralFF VTEC activation valve must function; EGR blanking plate rule clarified with Fast Forward part numbers.
In FF, GCR section 9.1.1.B.14.r.1, change as follows: "All emission control devices must be removed and blocked off by the blanking plate provided by HPD or Fast Forward as noted below, except for the VTEC activation valve. The VTEC activation valve must be retained; and it must be functioning. No modifications are permitted. a. EGR Plate: Fast Forward PN: FF200-301. b. EGR Port Cover: Fast Forward PN: FF200-302."
Runoffs 2024 → Runoffs 2025 2024-10-01 to 2025-09-29
FF 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."
FF Alternative Oversize Honda Fit Pistons
#37064 from Formula/Sports Racing Committee · Rule change · TB 24-11 (2024-11 Fastrack)
neutralFF Honda Fit allows Fast Forward 0.25mm oversize pistons PN FF800-110 as alternative; piston diameter spec clarified to 2.8835 inches.
In FF, GCR section 9.1.1.B.14.e.1, change as follows: "Honda Fit OEM standard size pistons, PN: 13010-RB1-000, or Honda Fit OEM 0.25mm oversize pistons, PN: 13020-RB7-Z00, or Fast Forward 0.25mm oversize pistons, PN: FF800-110, may be used." In GCR section 9.1.1.B.14.e.2, change as follows: "a. Maximum standard piston diameter, measured at a point 16mm from the bottom of the skirt: 73.240mm (2.8834 2.8835 inches). b. Centerline of wrist pin to crown maximum: 26.21mm (1.032 inches). c. Maximum overall height from skirt to crown edge: 47.80mm (1.882 inches).
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d. Minimum weight: 198.0 grams (6.984 ounces). e. Minimum weight of piston pin: 66 grams (2.25 ounces). f. Combined minimum weight of piston, piston pin and connecting rod: 543.5 grams (18.85 ounces). g. Combined minimum weight of piston, wrist pin, and circlips: 267 grams (9.418 ounces). h. Centerline of wrist pin to crown edge: 26.289mm (1.035 inches). i. Ring groove widths: Top ring groove: 1.003mm (0.0395 inches). Middle ring groove: 1.016mm (0.0400 inches). Oil ring groove: 1.981mm (0.0780 inches). j. Ring groove distance from wrist pin center to bottom of groove: Top ring groove: 19.63mm (0.7730 inches). Middle ring groove: 15.29mm (0.6020 inches). Oil ring groove: 10.91mm (0.4295 inches)."
FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change
#37802 from Anthony Stefanelli · Rule change · TB 25-03 (2025-03 Fastrack)
fasterFF allows older cars with rocker arm or outboard suspension to use bias ply slicks or VFF tires instead of radials.
In FF, GCR section 9.1.1.B.10.e, change as follows: "Formula F shall be limited to the following tires (front tires may not be used as rears): Dries: Front - Hoosier R60A Radial 43322 or F1600 Radial 43321 185/60R13 Rear - Hoosier R60A Radial 43327 or F1600 Radial 43326 205/60R13 Wets: Front - Hoosier Wet or W3 Radial 44421 185/60R13 Rear - Hoosier Wet or W3 Radial 44426 205/60R13
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Alternatively, Formula F cars with rocker arm suspension (e.g., Swift DB1, 1987-90 Reynard) and/or outboard suspension on at least one chassis end may use the following tires: Dries: Front - Hoosier H43130 R60A 20.0 x 6.0-13 or H43164 R60A 20.5 x 7.0-13 bias ply slick Rear – Hoosier H43307 R60A 22.5 x 7.2-13 bias ply slick Wets: Radial wets listed above or Front - Hoosier 44165 135/545-13 VFF Rear - Hoosier 44170 165/580-13 VFF Front tires may not be used as rears, and tires may not be mixed, i.e., radial tires may not be mixed with bias ply slick tires, bias ply slick tires may not be mixed with VFF tires, and radial tires may not be mixed with VFF tires."
FF Page 228, FF tire rule 9.1.1.10.e
#38251 from Anthony Stefanelli · Rule change · TB 25-05 (2025-05 Fastrack)
neutralFF adds rocker arm and outboard suspension cars optional bias ply and VFF tires; removes front-as-rear rule, adds mixing restrictions.
In FF, GCR section 9.1.1.B.10.e, change as follows: "Formula F shall be limited to the following tires (front tires may not be used as rears): Dries: Front - Hoosier R60A Radial 43322 or F1600 Radial 43321 185/60R13 Rear - Hoosier R60A Radial 43327 or F1600 Radial 43326 205/60R13 Wets: Front - Hoosier Wet or W3 Radial 44421 185/60R13 Rear - Hoosier Wet or W3 Radial 44426 205/60R13
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Alternatively, Formula F cars with rocker arm suspension (e.g., Swift DB1, 1987-90 Reynard) and/or outboard suspension on at least one chassis end may use the following tires: Dries: Front - Hoosier H43130 R60A 20.0 x 6.0-13 or H43164 R60A 20.5 x 7.0-13 bias ply slick or Hoosier 44165 135/545-13 VFF Rear – Hoosier H43307 R60A 22.5 x 7.2-13 bias ply slick or Hoosier 44170 165/580-13 VFF Wets: Radial wets or VFF tires listed above or Front - Hoosier 44165 135/545-13 VFF Rear - Hoosier 44170 165/580-13 VFF Front tires may not be used as rears, and tires may not be mixed, i.e., radial tires may not be mixed with bias ply slick tires, bias ply slick tires may not be mixed with VFF tires, and radial tires may not be mixed with VFF tires."
Runoffs 2025 → Runoffs 2026 2025-09-29 to 2026-09-28
FF Formula F Alternative Tire Rule Proposed Clarifications
#39281 from Jay Messenger · Rule change · TB 26-01 (2026-01 Fastrack)
neutralFF clarifies alternative tire eligibility for cars homologated 1989 or earlier with rocker arm or outboard suspension on all four corners.
In FF, GCR section 9.1.1.B.10.e, change as follows: "Alternatively, Formula F cars with rocker arm suspension (e.g., 1987-90 Reynard, Swift DB1,) and/or outboard suspension on at least one chassis end homologated in 1989 or earlier with any combination of rocker arm or outboard suspension on all four corners (e.g., 1987 – 1990 Reynard, Swift DB1) may use the following alternative tires. Note: This rule is intended to allow older cars with the described suspension design to use the alternative tires. It is not to be exploited by modifying cars with push-rods or pull-rods to meet the above requirements or by modifying either end of older cars to push- or pull-rod suspension to be eligible to run the alternative tires. Cars that were homologated in 1989 or earlier with push- or pull-rod suspension on no more than two corners may seek approval to run the alternative tire by utilizing the compliance process outlined in GCR section 8.1.4."
FF Clarification in FF Kent 1600 Compression Ratio Paragraph
#40293 from Formula/Sports Racing Committee · Rule change · TB 26-07 (2026-07 Fastrack)
neutralFF Kent 1600 compression ratio calculation clarified by moving bore and valve protrusion specs to separate sections.
In FF, GCR section 9.1.1.B.12.a.7, change as follows: "Compression Ratio Compression ratio must be calculated using the official FF Kent calculator, which can be found on scca.com at http://www.scca.com/pages/scrutineering-forms-procedures. Maximum compression ratio: 9.3 to 1 The following specifications are used in determining compression ratio: A. Maximum bore size: 3.200" See B.12.b.6 B. Minimum cylinder volume at Top Dead Center: 42.0cc (measured by cc'ing cylinder volume from top of cylinder block deck to
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area above top of piston at TDC) C. Maximum valve protrusion from head surface: .040" See B.12.c.4 D. Only approved head gaskets in B.12.c.3 may be used (see B.12.c.3)" In FF, GCR section 9.1.1.B.12.b, add the following: "6. Maximum bore size: 3.200" " In FF, GCR section 9.1.1.B.12.c, add the following: "4. Maximum valve protrusion from head surface: 0.040” "
What the rules allowed changed as listed; this does not say what any particular car ran.