FC: 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. 21 changes, 94 other letters.

Changes made

2026-01-01 F2000 MZR Spec Line Clarity/Revision Requested

#38927 from Rock Beauchamp · Rule change · TB 26-01 (2026-01 Fastrack)

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."

2026-01-01 Adjust F2000 Metrik ZF2 weight

#39612 from Club Racing Board · Rule change · TB 26-01 (2026-01 Fastrack)

In FC Charts table, F2000 Metrik ZF2 spec line, change the Weight as follows:
"~~1240~~ 1220"

2024-11-01 9.1.1.10.h. FC Tire Rule

#36533 from SCCA Staff · Rule change · TB 24-09 (2024-09 Fastrack)

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."

2024-11-01 Change FF/FC Weight with Sequential Gearbox

#36651 from Robert Wright · Rule change · TB 24-11 (2024-11 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."

2024-04-01 Four Pot Calipers

#35481 from Steve Jenks · Rule change · TB 24-04 (2024-04 Fastrack)

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.

2024-01-01 Please correct omitted punctuation

#34890 from Club Racing Board · Rule change · TB 23-10 (2023-09 Fastrack)

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."

2023-07-01 Review FC Runoffs Tire Marking Rule

#34274 from SCCA Staff · Rule change · TB 23-06 (2023-05 Fastrack)

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."

2023-06-01 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)

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.

2023-01-01 E&O 9.1.1.B.16.j

#33634 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)

In FC/FF, GCR Section 9.1.1.B.16.j., change as follows:
"ECU: Either the Pectel T2 ECU or the Performance Electronics PE3-8400 ECU is required. Cars that use the Pectel T2 ECU must
have an accessible and operable communications port for a stereo jack; cars that use the PE3-8400 ECU must have an accessible
and operable communications port for an ethernet connection. The SCCA tune-file/map for the Pectel T2 and PE3-8400 on the
official SCCA website is required. The PE3-8400 tune-file/map must be loaded with PE3-8400 Monitor firmware V3.04.50 35.
Competitors may be required to cycle the master switch to kill the engine at the request of a steward on the grid before a
qualifying session or race."

2022-07-01 Add Specification to Performance Electronics ECU for Ford Zetec

#32761 from Formula/Sports Racing Committee · Rule change · TB 22-07 (2022-07 Fastrack)

In FC, GCR section 9.1.1.B.16.j, change as follows:
"ECU: Either the Pectel T2 ECU or the Performance Electronics ~~PE-3~~ PE3-8400 ECU is required. Cars that use the Pectel T2 ECU
must have an accessible and operable communications port for a stereo jack; cars that use the ~~PE-3~~ PE3-8400 ECU must have an
accessible and operable communications port for an ethernet connection. The SCCA tune-file/map for the Pectel T2 and ~~PE-~~
3 PE3-8400 on the official SCCA website is required. The ~~PE-3~~ PE3-8400 tune-file/map must be loaded with ~~PE-3~~ PE3-8400 Monitor
firmware V3.04.35 50. Competitors may be required to cycle the master switch to kill the engine at the request of a steward on
the grid before a qualifying session or race."

2022-01-01 Clean up Chassis/Frame section

#31867 from Formula/Sports Racing Committee · Rule change · TB 22-01 (2022-01 Fastrack)

In FC, GCR section 9.1.1.B.3.e, add the following:
"The area between the upper and lower main frame tubes from the front instrument/dash roll hoop bulkhead to the rear roll
hoop bulkhead shall be protected by at least one of the following methods to prevent the intrusion of objects into the cockpit.
Panels may extend to the forward most bulkhead, but must otherwise comply with these regulations. No other exterior panels
(except for bodywork) shall be permitted in the area between the upper and lower main frame tubes from the forward most
bulkhead to the rear roll hoop bulkhead. These panels may also serve as body in the described area."
In FC, GCR section 9.1.1.B.3, change as follows and re-letter the following sections accordingly:
"f. ~~No other exterior panels (excepting body work) shall be permitted in the area between the upper and lower main frame~~

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~~tubes from the forward most bulkhead to the rear roll hoop bulkhead. S~~ uspension components shall not be mounted directly to
any frame exterior panel (including, but not limited to, body and anti-intrusion panels). The chassis must be capable of rolling
without any such frame-exterior panels installed. The engine, bell housing/oil tank, and gearbox are exempt from this limitation.
g. No panels or other components other than the required and optional load bearing panels may be attached to the chassis for
structural purposes, except that the engine, bell housing/oil tank, and gearbox are permitted to be stressed and/or load bearing.
g. h. A firewall(s) that seals the drivers’ compartment (cockpit) and the engine compartment is required. Forward facing ducts
may be installed to delivering air directly to the engine compartment. Air duct openings may be located within the cockpit
provided the firewall is extended to prevent the passage of flame and debris from reaching the driver."

2021-12-01 Clarify Zetec ECU requirements

#31554 from Formula/Sports Racing Committee · Rule change · TB 21-12 (2021-12 Fastrack)

In FC, GCR section 9.1.1.B.16.j, change as follows:
"ECU: Either T the Pectel T2 ECU or the Performance PE-3 ~~unit~~ ECU is required. Cars that use the Pectel T2 ECU must have an
accessible and operable communications port for a stereo jack; cars that use the PE-3 ECU must have an accessible and operable
communications port for an ethernet connection. The ~~current specification~~ SCCA ~~Club~~ tune-file/map for the Pectel and PE-3 or
~~2013 Pro map~~ as published by on the official SCCA website is required. ~~The SCCA Club and 2013 Pro map are available on the~~
~~SCCA website.~~ The PE-3 tune-file/map must be loaded with PE-3 Monitor firmware V3.04.35. Competitors may be required to
cycle the master switch to kill the engine at the request of a steward on the grid before a qualifying session or race.~~Competitors~~
~~are reminded to ensure that the maps available on the SCCA website are those which are loaded in their respective ECUs for~~

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~~SCCA competitions. Competitors are further reminded that the appropriate sized ZETEC restrictor for SCCA is 1.340.~~"

2021-11-01 Clarify composite anti-intrusion panel language

#31426 from Formula/Sports Racing Committee · Rule change · TB 21-11 (2021-11 Fastrack)

In FC, GCR section 9.1.1.B.3.e.4, add language as follows:
"Composite anti-intrusion panels that are not of uniform thickness shall be attached with no more than eight fasteners per side."

2021-11-01 Clarify tire marking requirements

#31455 from Formula/Sports Racing Committee · Rule change · TB 21-11 (2021-11 Fastrack)

In FC, GCR section 9.1.1.B.10.h, make changes as follows:
"FC shall be 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 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 ~~of the~~
~~competitor~~ to ensure that ~~their~~ the tires are declared, marked, and logged by Tech in advance of ~~their on-track session(s)~~ the
tire(s) being used in a qualifying session or race."

2021-03-01 Request for FC Weight Change

#30171 from Brian Tomasi · Rule change · TB 21-03 (2021-03 Fastrack)

In GCR section 9.1.1.B.20.B, change the weight as follows:
"1. Pinto Engine: ~~1200~~ 1190 lbs.
2. Pinto with aluminum cylinder head: ~~1200~~ 1190 lbs.
3. Zetec Engine: ~~1220~~ 1210 lbs."

2020-10-01 Urgent: SCCA PE3 map unsuitable

#29475 from Brandon Dixon · Rule change · TB 20-10 (2020-10 Fastrack)

In FC, GCR section 9.1.1.B.16.j, clarify as follows:
“ECU: The Pectel T2 or the Performance PE-3 unit is required. The current specification SCCA Club map or 2013 Pro map as
published by SCCA is required. The SCCA Club and 2013 Pro map are available on the SCCA website. Competitors are reminded to
ensure that the maps available on the SCCA website are those which are loaded in their respective ECUs for SCCA competitions.
Competitors are further reminded that the appropriate sized ZETEC restrictor for SCCA is 1.340.”

2020-08-01 Request for weight adjustments to equalize FC competition.

#28888 from Kenneth "Skip" Weld · Rule change · TB 20-08 (2020-08 Fastrack)

In FC, GCR section 9.1.1.B.20.B.3, change weight as follows:
"Zetec Engine: ~~1200~~ 1220 lbs."
Note from the Club Racing Board:
The Zetec weight change is being implemented for the sole and exclusive purpose of making the class
more attractive to owners of Pinto powered cars to encourage their participation in Majors and Super
Tour events. The Formula Sports Racing Committee and Club Racing Board note that the Pinto and Zetec
TECHNICAL BULLETIN
engines are very close in performance per dyno information following the recent changes to the Pinto

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engine rules which permit a new rod, piston and carburetor. The Club Racing Board and Formula Sports
Racing Committee will monitor performance and participation figures regarding any future changes.

2019-12-01 Request for Better Zetec Connecting Rods

#27710 from Lyn Greenhill · Rule change · TB 19-12 (2019-12 Fastrack)

In FC, GCR section 9.1.1.B.16.b, make changes as follows:
"Only original Ford, or Sealed Power #H872cp, or United Engine and Machine #SO2763 pistons may be
used. Only original Ford or Eagle #CRS5483F3D connecting rods may be used. The C crankshaft~~, and rods~~
may be replaced only with a standard original Ford replacement parts."

2019-12-01 Add Alternate Piston

#27795 from Club Racing Board · Rule change · TB 19-12 (2019-12 Fastrack)

In FC, GCR section 9.1.1.B.16.b, change as follows:
"Only original Ford, or Sealed Power #H872cp, or United Engine and Machine #SO2763, or Mahle
#930169439 pistons may be used."

2019-05-01 E&O Wiseco piston and Crower connecting rod

#26659 from Formula/Sports Racing Committee · Rule change · TB 19-05 (2019-05 Fastrack)

part numbers
In GCR section 9.1.1.B.15.f.6, make changes as follows:
“Wiseco piston P/N ~~WD-06526~~ WD07253 as supplied by Quicksilver with rings, pin, Crower
connecting rod P/N ~~SP93235B-4~~ SP 93221 (with bolts), but without bearings: Minimum
permitted weight: 976 grams.”

2019-01-01 Correct Wiseco piston and connecting rod

#25809 from Formula/Sports Racing Committee · Rule change · TB 19-01 (2019-01 Fastrack)

assembly E&O
In GCR section 9.1.1.B.15.f.6, make the following correction:
“Wiseco piston P/N WD-06526 as supplied by Quicksilver with rings, pin, Crower
connecting rod P/N SP93235B-4 (with bolts), but without bearings: Minimum permitted
weight: ~~555~~ 976 grams.”

Other letters

Mazda MZR Rules

#40199 from Robert Wright · No action required · Minutes (2026-06 Fastrack)

The Road Racing Competition Committee appreciates the submission of the 2026 Formula Race Promotions (FRP) technical
specifications for the USF2000 tube frame car with the Mazda MZR engine. The RRCC needs additional information to make a
decision on the request to replace the 2018 FRP technical specifications for the MZR-powered USF2000 car. Please submit
information with a new letter to crbscca.com about the specific parts on the USF2000-MZR car, in addition to those parts for
which allowances have already been made in the GCR, that are either unavailable or difficult to find along with
specific descriptions of the corresponding and noncompliant parts that competitors may be using as replacement alternatives to
the original parts.

FC Spec Tire Grooving Clarification

#39746 from Paul MacFarlane · Not recommended · Minutes (2026-03 Fastrack)

The Road Racing Competition Committee does not recommend this change. GCR section 1.2.3.C.2 states that "Specific class rules
in the Category Section of the GCR shall take precedence over . . . the General Technical Specifications" (such as section
9.3.47). The FC rules state the following in section 9.1.1.B.1.d: "Formula F and Formula Continental are restricted classes.
Therefore, any allowable modifications, changes, or additions are as stated herein. There are no exceptions. IF IN DOUBT,
DON'T." The requirements for FC spec tires are provided in sections 9.1.1.B.10.g and 9.1.1.B.10.h, and these rules do not
authorize modifications or changes. The RRCC does not believe it is in the best interests of the class to authorize modifications or
changes to spec tires.

Reclassify FM to FC

#39162 from Moses Smith · Not recommended · Minutes (2026-03 Fastrack)

The Road Racing Competition Committee does not recommend this change because the FM uses a number of major
components that fall outside the general FC rules. While two cars that are reasonably close to the class concept have been
allowed into FC as "spec line" cars, the rules state that additional spec line cars are disfavored. Creating an additional spec line
for a car that uses several major components that do not comply with the general rules is outside the scope and intention for
the class. To the extent that a performance disparity between the FM and other cars in the FX class is a concern, the RRCC notes
that competitors facing this situation in other classes have sometimes organized an unofficial championship for that car type
within their class and/or recognized individual competitors' performance by awarding separate trophies and taking their own
podium photos. This has worked well both regionally and nationally but does require organization on the racers' part.