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BoP Lab / Rules / FF

FF: rule changes

In our results from 2015-09-19 to 2026-09-28.

Wording removed by a change is shown struck through, as in the original. 20 changes, 112 other letters.

Changes made

New FF Rain Tires from Hoosier

#40863 from Anthony Stefanelli · Rule change · TB 26-10 (2026-10 Fastrack)

Summary

tyres & wheelsFF gains Hoosier W3 Radial wet tyre options: fronts 46101 P185/65R13, rears 46105 P205/60R13.

As printed in Fastrack

In FF, GCR section 9.1.1.B.10.e, change as follows:
"Front-Hoosier Wet, or W3 Radial 44421 185/60R13, or W3 Radial 46101 P185/65R13
Rear-Hoosier Wet, or W3 Radial 44426 205/60R13, or W3 Radial 46105 P205/60R13"

Clarification in FF Kent 1600 Compression Ratio Paragraph

#40293 from Formula/Sports Racing Committee · Rule change · TB 26-07 (2026-07 Fastrack)

Summary

wordingFF Kent 1600 compression ratio calculation clarified by moving bore and valve protrusion specs to separate sections.

As printed in Fastrack

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” "

Formula F Alternative Tire Rule Proposed Clarifications

#39281 from Jay Messenger · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

wordingFF clarifies alternative tire eligibility for cars homologated 1989 or earlier with rocker arm or outboard suspension on all four corners.

As printed in Fastrack

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."

Page 228, FF tire rule 9.1.1.10.e

#38251 from Anthony Stefanelli · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

tyres & wheelsFF adds rocker arm and outboard suspension cars optional bias ply and VFF tires; removes front-as-rear rule, adds mixing restrictions.

As printed in Fastrack

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."

Formula F Proposal to Invite Older Cars Via a Tire Rule Change

#37802 from Anthony Stefanelli · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

fasterFF allows older cars with rocker arm or outboard suspension to use bias ply slicks or VFF tires instead of radials.

As printed in Fastrack

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."

Change FF/FC Weight with Sequential Gearbox

#36651 from Robert Wright · Rule change · TB 24-11 (2024-11 Fastrack)

Summary

fasterFF and FC cars with sequential gearbox must add 10 lbs. to minimum weight, down from 25 lbs.

As printed in Fastrack

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."

Alternative Oversize Honda Fit Pistons

#37064 from Formula/Sports Racing Committee · Rule change · TB 24-11 (2024-11 Fastrack)

Summary

wordingFF Honda Fit allows Fast Forward 0.25mm oversize pistons PN FF800-110 as alternative; piston diameter spec clarified to 2.8835 inches.

As printed in Fastrack

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)."

Update to FF EGR Blanking Plate Rule

#36633 from Matt Boian · Rule change · TB 24-10 (2024-10 Fastrack)

Summary

wordingFF VTEC activation valve must function; EGR blanking plate rule clarified with Fast Forward part numbers.

As printed in Fastrack

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."

Honda Fit Oversize Piston Rings

#35305 from Doug Learned · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

wordingFF Honda Fit gains Fast Forward FF800-100 oversize piston ring pack option.

As printed in Fastrack

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."

Add Fast Forward Part Numbers for Honda Fit Engine

#33752 from Formula/Sports Racing Committee · Rule change · TB 23-03 (2023-03 Fastrack)

Summary

wordingFF Honda Fit engine adds Fast Forward part number alternatives for intake, exhaust, oil system, and scavenge pump components.

As printed in Fastrack

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."

Kent crankshaft clarification

#30426 from Formula/Sports Racing Committee · Rule change · TB 21-04 (2021-04 Fastrack)

Summary

wordingFF block relief permitted only as needed to fit allowed crankshaft.

As printed in Fastrack

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.”

Allow Optional Coolant Bleed Line to Correct a Known Problem

#29673 from Nick Fuhs · Rule change · TB 20-12 (2020-12 Fastrack)

Summary

wordingFF class cylinder head may now have optional coolant bleed line fitting to top of head for air release.

As printed in Fastrack

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."

Clarification regarding Honda LC1 ECU implementation date

#29684 from Formula/Sports Racing Committee · Rule change · TB 20-12 (2020-12 Fastrack)

Summary

wordingFF Honda LC1 ECU by HPD permitted effective 12/1/2020, must use HPD lambda sensor.

As printed in Fastrack

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."

Clarification regarding Honda LC1 ECU implementation

#29135 from Formula/Sports Racing Committee · Rule change · TB 20-08 (2020-08 Fastrack)

Summary

wordingFF Honda LC1 ECU implementation date changed from 3/1/2020 to pending availability of support materials.

As printed in Fastrack

date
In GCR section 9.1.1.B.14.p.3, change as follows:
"The LC1 ECU supplied by HPD is will be permitted effective 3/1/2020 on a date to be determined 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."

E&O FF Kent Engine alternator language

#28204 from Joe Fisher · Rule change · TB 20-04 (2020-04 Fastrack)

Summary

wordingFF alternator changes from not required to optional.

As printed in Fastrack

In GCR section 9.1.1.B.12.r, change as follows:
"Generators/Alternators: not required optional."

Honda Racing HPD low cost ECU proposal

#27563 from John Whiteman · Rule change · TB 19-12 (2019-12 Fastrack)

Summary

engineFF allows Honda HPD LC1 low-cost ECU with lambda sensor; E1 ECU no longer supported but existing units permitted if sealed.

As printed in Fastrack

In FF, GCR section 9.1.1.B.14.p, add new sections and renumber as follows:
"3. The LC1 ECU supplied by HPD is permitted effective 3/1/2020 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.
4. The LC1 ECU may be used with an LC1-specific chassis harness supplied by HPD or with a current
chassis harness using an adapter supplied by HPD.
5. The current E1 ECU is no longer supported, but competitors may continue to use existing E1 ECUs
provided that they are functioning as intended. The E1 ECU must remain sealed and unmodified."

Update rain tire designation

#28443 from Formula/Sports Racing Committee · Rule change · TB 20-03 (2020-03 Fastrack)

Summary

tyres & wheelsFF rain tyres now allow Hoosier W3 Radial in addition to existing Hoosier Wet option.

As printed in Fastrack

In GCR section 9.1.1.B.10.e, change as follows:
"Wets:
Front-Hoosier Wet or W3 Radial 44421 185/60R13
Rear-Hoosier Wet or W3 Radial 44426 205/60R13"

Request for Oversize Honda Fit Pistons

#25810 from Sandy Shamlian · Rule change · TB 19-02 (2019-02 Fastrack)

Summary

fasterFF Honda Fit permitted to use 0.25mm oversize pistons, cylinder honing increased to 73.315mm maximum.

As printed in Fastrack

In GCR section 9.1.1.B.14.b.2, make changes as follows:
“Honing of cylinders is permitted to a maximum diameter of 73.065 73.315mm (2.8766 2.8864
inches). Fitting of cylinder sleeves is prohibited. Re-boring to over size is prohibited.”
In GCR section 9.1.1.B.14.e, make changes as follows:
“1. Honda Fit OEM standard size pistons, PN: 13010-RB1-000, or Honda Fit OEM 0.25mm
oversize pistons, PN: 13020-RB7-Z00, must may be used.
2. The use of over size pistons is not permitted.
3. 2. Piston dimensions and weights:

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a. Maximum standard piston diameter, measured at a point 16mm from the bottom of the
skirt: 72.990 73.240mm (2.8736 2.8834 inches).”
“4. 3. Piston rings must be as used in the Fit engine. Two compression rings and one 3 piece
oil control ring must be used.
a. 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), may be used.”

Heat Shield - Fit Intake

#26102 from Club Racing Board · Rule change · TB 19-02 (2019-02 Fastrack)

Summary

wordingFF heat shield rule clarified: thermal wrap allowed on manifold exterior if easily removable for inspection.

As printed in Fastrack

In GCR section 9.1.1.B.14.k.2, add a new subsection as follows:
“b. No coating is permitted on the exterior or interior of the manifold. A thermal wrap may
be used on the exterior of the manifold, but it must be easily removable for inspection of the
manifold.”

Request catch cans/tanks clarification

#26158 from John LaRue · Rule change · TB 19-02 (2019-02 Fastrack)

Summary

wordingFF catch tank minimum capacity rules clarified: coolant catch tank now one U.S. pint minimum, oil catch tank one U.S. quart minimum.

As printed in Fastrack

In GCR section 9.3.14, make the following changes:
“Cooling systems shall be equipped with coolant catch tanks with a minimum capacity of 1 US
Pint to prevent the spillage of coolant onto the racing surface. An oil catch tank with a minimum
capacity of one U.S. quart may also serve as the coolant catch tank, except for cars that are
equipped with working OEM pressurized coolant reservoirs, which may use an additional catch
tank. If the coolant catch tank is separate from the oil catch tank, the coolant catch tank shall
have a minimum capacity of one U.S. pint.”
In GCR section 9.3.37, make the following changes:

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“Oil holding tanks and engine breathers, whether directly or indirectly ventilating the crankcase,
and all transmission/transaxle breathers shall be equipped with oil catch tanks. The oil catch
tank may also serve as the coolant catch tank. Minimum catch tank capacity shall be one U.S.
quart for the engine, and transmission/transaxle, and cooling system. Oil holding tanks and oil
filters may be mounted in the driver/passenger compartment.”

Other letters

Support for Rule Change Submittal #40863

#40865 from Ed Erlandson · No action required · Minutes (2026-10 Fastrack)

Please see the response to letter #40863 in this Fastrack.

Honda Fit Oil Pan

#40573 from Doug Learned · Recommended to the Board · Minutes (2026-09 Fastrack)

In FF, GCR section 9.1.1.B.14.n.1.a, change as follows effective 10/1/26:
"Oil pan: HPD PN: 11200-F21S-A210 or PN: 11200-F21S-C240; Fast Forward PN: FF100-201A, or PN: FF100-201B, or PN: FF100-
201C."

Resend: Kent 1600 GCR Compression Ratio Analysis Error

#40035 from Bill Manofsky · No action required · Minutes (2026-07 Fastrack)

The Road Racing Competition Committee appreciates the submission of the supporting documentation on the issue of
measuring the compression ratio of the Kent 1600 cc engine. The RRCC has carefully reviewed the information in the GCR on the
FF Kent 1600 head and cylinder/piston configuration, the calculation of the compression ratio, and the means for determining
the compression ratio. Please see the response to Letter #40293 in this Fastrack's Technical Bulletin.

FF 5-Year Strategy Submission

#39993 from Anthony Stefanelli · No action required · Minutes (2026-06 Fastrack)

The Road Racing Competition Committee appreciates the submission of the FF Five-Year Strategy and the effort which the class's
stakeholders put into developing the plan. The RRCC believes the plan coordinates well with the SCCA's strategic plan and
objectives.

I Support Letter #37802

#37949 from Alan Vandeweghe · Taken care of · Minutes (2025-04 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in the March 2025 Fastrack.

I support Letter #37802

#37917 from Robert Dietz · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support of letter 37802

#37898 from Theodore Winning · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I support Letter 37802

#37895 from Rod Lopez · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support Letter #37802 Regarding Formula F Tires

#37892 from Mark Davison · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

support for letter 37499

#37890 from EDWARD Erlandson · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I support Letter #37802

#37888 from Ted Burns · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support Letter #37802

#37886 from Raymond Boyer · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37885 from Billy Martin · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter #37802

#37883 from DANIEL WISE · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37878 from Ed Shuler · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37876 from Charles Swayne · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37875 from Martin Handberg · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I support Letter 37802

#37874 from Hayden Eade · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37873 from Mike Messenger · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37872 from Andrew MacDougall · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Improve FF Car Counts at our Tracks

#37871 from Chris Smith · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37870 from Sally Messenger · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Letter 37802

#37864 from Robert Gross · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37802

#37861 from R Mark Russell · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Spec Tire Thoughts

#37860 from Meg Sauce · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37855 from David Woodmancy · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Letters 37849 or 37802.

#37852 from Jeremy Grenier · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Revision to my letter 37802

#37849 from Anthony Stefanelli · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter#37802

#37843 from John Conder · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

RE: Letter #37802

#37841 from Christopher Robson · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Tire Rule Change

#37839 from Jim Roberts · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

FF/CF Tire Rule

#37838 from Garey Guzman · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37802

#37836 from Joe Fisher · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I support Letter #37802

#37833 from Jonathan Lee · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37832 from James Dietz · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37831 from Kevin Brumbaugh · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter 37802

#37830 from Mike Swensen · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37829 from Ethan Mackey · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter 37802

#37828 from Ted Smith · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37827 from Brian Styczynski · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37823 from Tazio Stefanelli · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter 37802

#37822 from Tom Dalrymple · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37820 from Scott Segers · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Please Change the Tire Rule

#37819 from Michael Sauce · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37817 from Gray Fowler · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37815 from Cliff Johnson · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37813 from Steve Gomas · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37812 from Matt Boian · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter #37802

#37810 from John Spinello · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter #37802

#37809 from Anna Spinello · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter #37802

#37808 from John Spinello · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for Letter 37802

#37807 from Jay Messenger · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter #37802

#37806 from Hannu Nummenpaa · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support of Letter #37802.

#37805 from Larry Hayashigawa · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

I Support Letter 37802

#37804 from Demetrios Constantinidis · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37499

#37742 from Gray Fowler · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37499

#37741 from Jeff Maddox · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37499

#37739 from R Mark Russell · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Support for letter 37499

#37738 from Jay Messenger · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Bias Ply Slicks for FF

#37657 from Larry Hayashigawa · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Allow Hoosier VFF Tire in FF

#37557 from Matt Boian · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

Can We Allow FF to Use the Hoosier Vintage Tire in Majors?

#37499 from Anthony Stefanelli · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please see the response to letter #37802 in this Fastrack.

FF/FC Side Intrusion Protection

#37464 from Robert Wright · No action required · Minutes (2025-02 Fastrack)

Thank you for your letter. Please bear in mind that the members of the Formula and Sports Racing Advisory Committee and the
Club Racing Board are volunteers who spend countless personal hours reviewing letters, data, and requests from members and
stewards, determining what if any changes should be made, and crafting language for the GCR when appropriate. Please see the
response to letter #36738 in this Fastrack.

FF/FC side intrusion protection

#36738 from Robert Wright · Not recommended · Minutes (2025-02 Fastrack)

Thank you for your letter. The Club Racing Board does not recommend this change. Without data, the CRB is unable to
determine whether the requested change would provide a meaningful addition (or perhaps even a detraction) to side protection
or maintain performance equivalent to that of cars with the current bodywork parameters. If data exists that supports the
request for this bodywork, please feel free to submit it to the CRB via the letter log system.

Honda Fit OEM Pistons

#36468 from Kenneth Bouquillon · No action required · Minutes (2024-11 Fastrack)

Thank you for your letter. Please see the response to letter #37064 in the current Fastrack.

Honda Fit Pistons

#36456 from Doug Learned · No action required · Minutes (2024-11 Fastrack)

Thank you for your letter. Please see the response to letter #37064 in the current Fastrack.

New addition to 9.3.32. LIGHTS

#35360 from ALAN VANDEWEGHE · Taken care of · Minutes (2024-01 Fastrack)

Thank you for your letter. The Club Racing Board does not recommend this change. Please see the responses to letters #34847
and #34719 in the November 2023 Fastrack.

Cockpit Safety Barrier Request

#34595 from Formula/Sports Racing Committee · Recommended to the Board · Minutes (2023-11 Fastrack)

In Roll Cages for Formula Cars and Sports Racing Cars, GCR section 9.4.5, add a new section as follows:
"H. Cockpit Safety Barriers (CSBs)
Any cage or device shaped as a wishbone or otherwise that is affixed to the Main Hoop and a low Front Hoop must comply with
FIA Standard 8869-2018 (Technical List n62) and must be affixed only to chassis/tubs that have been certified by the FIA for
installation of such devices. CSBs that are not FIA-approved may be considered by SCCA’s Technical Department on a case-by-
case basis following development and adoption of crashworthiness standards. "

Obsolete Honda coil 30520-RB0-003

#33134 from Jonathan Kotyk · Not recommended · Minutes (2022-10 Fastrack)

Thank you for your letter. The Club Racing Board appreciates the opportunity to work with you to find sources for the Honda
30520-RB0-003 coil. An alternate coil is not recommended at this time. Although the 30520-RB0-003 coil may currently be
backordered at some Honda dealerships, it remains available at other Honda dealerships as well as from vendors that
support the FF class.

Ambiguity in the compression ratio spec for the Kent engine

#30693 from Bill Manofsky · Not recommended · Minutes (2021-07 Fastrack)

Thank you for your letter. The Club Racing Board does not recommend this change because the GCR's standard for calculating an
engine's compression ratio already includes the volume above the top ring and below the top of the piston. Please see the
definition of compression ratio in Appendix F (Technical Glossary) and Appendix G (Facts, Formulas, and Measurement
Standards).

FC/FF Content Clarification

#30501 from Denny Renfrow · No action required · Minutes (2021-05 Fastrack)

Thank you for your letter. Please see GCR sections 9.1.1.B.2 through 9.1.1.B.7 for the corresponding construction specifications
applicable to cars registered on or after January 1, 1986.

Honda Piston Rings

#30088 from Michael Bernstein · No action required · Minutes (2021-05 Fastrack)

Thank you for your letter. Please consider purchasing parts from an engine builder. If ordering parts from the manufacturer,
please consider assigning a VIN to the order to get priority.

Crankshafts for the Kent 1600 engine

#30461 from Club Racing Board · Member advisory · Minutes (2021-04 Fastrack)

Recently concerns have been raised about the sufficiency of GCR 9.1.1.B.12.k – Crankshafts for the Kent 1600 engine. This is a
rule that has been in place for approximately 18 years and is adequate as written; however, some clarification is warranted.
SCCA Enterprises sells a crankshaft that is manufactured by SCAT. This particular crankshaft has the SCCA logo on the front
counterweight; it also carries the Formula Ford International (FFI) logo. This crankshaft is legal per the GCR in both dimension
and weight as supplied by SCCA Enterprises. The critical dimensions are cited in the aforementioned section of the GCR. The
crankshafts may not be re-profiled (knife-edged). See GCR 9.1.1.B.12.a.6. In some instances the blocks may need to be trimmed
slightly for fitment; this is not a new issue, but rather something that was common with the prior uprated OEM crankshafts. The
rules also permit “other” cast crankshafts which meet these dimensions and weights. While all of the dimensions of the

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crankshaft are not cited in the GCR, a known stock specimen can be utilized for comparative purposes if necessary.

Crankshaft Verbiage Change

#29872 from Joseph Fisher · Not recommended · Minutes (2021-02 Fastrack)

Thank you for your letter. Discussions were held with a number of professional Ford Kent 1600 engine builders who report that
they have not experienced any significant failures with the allowed crankshafts when they are shot peened and properly
prepared. The author’s suggested change to the rule would permit forged crankshafts which would be significantly more
expensive and possibly be perceived as a competitive advantage.

Request modification of Formula F bodywork rule

#28221 from Chris Bologna · Not recommended · Minutes (2020-04 Fastrack)

Thank you for your letter. The Club Racing Board does not recommend this change. Please see the
response to letter #23681 in the Board of Directors’ Minutes, March 2018 Fastrack.

New Formula Ford Parts Request

#28270 from Mark Mervich · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Support for New FF Parts Approval Request

#28235 from Alan VanDeWeghe · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Opposes proposed new engine parts for FF (pistons and valves)

#28216 from Doug Learned · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Opposes alternative FF Proposed parts

#28192 from Roland Johnson · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval requested

#28191 from Samuel Eyer · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Alternative FF piston and valve request

#28190 from Mike Agnifilo · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request Formula Class Management

#28178 from John Nesbitt · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. The Club Racing Board appreciates your comments.

Request new FF parts approval

#28174 from Stewart Paterson · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28173 from Andy Paterson · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28172 from Mark Walthew · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request proposal for alternate parts for FF Kent Engine

#28170 from Chip VanSlyke · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request alternate FF engine parts

#28166 from Kevin Brumbaugh · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28165 from Norman Marshall Jr · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28164 from Wayne Nicolette · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28163 from Raymond Boyer · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28161 from Douglas Fisher · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28159 from Derek Holmes · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28154 from William Garrett · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28152 from John Butt · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28151 from Ed Little · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28149 from James Adleberg · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28148 from Paul Wilson · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28147 from Keith Joslyn · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28146 from Blake Tennessen · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28144 from Joe Fisher · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28142 from John D'Addario · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28141 from Paul Reineck · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF Parts Approval

#28140 from Charles Smith · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Information for Formula Ford rules

#28137 from Jay Ivey · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28136 from Sam Youngman · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28135 from Rick Hiland · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28134 from Eric Little · Taken care of · Minutes (2020-03 Fastrack)

Thank you for your letter. Please see the response to letter #28133 in this Fastrack.

Request new FF parts approval

#28133 from Joseph Marcinski · Not recommended · Minutes (2020-03 Fastrack)

Mr. Joseph Marcinski, Letter #28133
Thank you for your letter of January 6, 2020 concerning an alternative piston, rings, wrist pin and valves
for Formula F. Although your letter failed to designate what engine these parts were intended for, we
will assume that it is the Ford Kent 1600 cross-flow.
First, your letter provides no detail concerning the Manley valve(s) you propose for use. No part
number, drawings, part(s) or dyno comparison. It is not possible for this part to be evaluated on what
has been submitted.
Be advised that JE submitted a request for approval of a piston on or about November 9, 2018 for the

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Ford Kent 1600 cross-flow engine through SCCA’s letter system. That request included an engineering
drawing of the piston, but did not include dyno comparison results or a sample part. It was further
unclear to the FSRAC at that time, and to this day, whether JE has actually manufactured a piston or has
simply produced a drawing and will produce such if asked to do so. The FSRAC recommended to the CRB
that the request be denied. The CRB accepted that recommendation and published notice thereof in the
January 2019 Fastrack. A follow-up inquiry was made by JE’s Jim Irwin concerning the request and a
response was provided by the FSRAC Chairman, David Locke, on February 1, 2019. The letter advised Mr.
Irwin that the FSRAC did not see evidence of a need for an alternative Kent piston, but assuming that
such need could be demonstrated a dyno comparison to the currently approved piston would be
required. Locke welcomed further submission of dyno test results and a sample piston; to date JE has
not made further inquiry or submission on this matter.
As you may or may not be aware, about twenty (20) years ago parts for the Kent engine were in very
short supply and the quality of those available were questionable. Since that time members of the
Formula F community have worked to produce parts, including a block, which have proven to be of good
quality and provide a useful engine life many times that which existed previously. In the absence of a
proven shortage of parts, or valid reason for approving “alternative” parts, we do not believe it prudent
to introduce such into the stream of competition. Even “if” the proposed parts are dimensionally the
same, differences in material composition and processing could result in a part that would not produce
the same power or worse yet, longevity. It would at a minimum introduce a variable into the class that
could result in “perceived” performance differences which we believe would have a negative impact
upon its overall health.
Thank you for your continued support of Formula F and the SCCA.

Request to Adopt Honda Racing HPD Low Cost ECU

#27444 from John Whiteman · No action required · Minutes (2019-12 Fastrack)

Thank you for your letter. Please see the response to letter #27563 in this Fastrack's Technical Bulletin.

Opposes FF request for oversize Honda Fit Pistons

#26467 from Philip LaPointe · Taken care of · Minutes (2019-04 Fastrack)

Thank you for your letter. The Club Racing Board appreciates your comments. Please see the
response to letter #25810, February 2019 Fastrack Technical Bulletin.

Support for Pistons and Request for Valves

#25872 from Mark Mervich · Taken care of · Minutes (2019-01 Fastrack)

Thank you for your letter. Please see the response to letter #25737. If you have a proposal
regarding alternate valves for the Kent engine, please submit a request and the CRB will
consider it.

Request Approval of New Piston for Ford Kent Engine-Std. Bore

#25737 from Henry Elizalde · Not recommended · Minutes (2019-01 Fastrack)

Thank you for your letter. The CRB does not recommend this change.