FV Transmission Rules
#39269 from Brian Farnham · Not recommended · Minutes (2026-05 Fastrack)
The Road Racing Competition Committee does not recommend this change. The advisory committee has carefully researched
and reconsidered the author's request to allow competitors to polish transmission internal parts in FV, and the findings are
similar to those regarding the author's prior letter #37100 submitted in October 2024. The RRCC therefore reiterates its previous
determination: "Polishing that is not required to effectively clean a part and is not performed by the original manufacturer or
called out in the service manual for a part constitutes a modification of the part, and the rules state that components of the
powertrain (such as components within the transmission) may not be modified unless specifically authorized by the rules."
Whether some competitors have polished their transmissions and tech inspectors have elected not to inspect transmissions
at the Runoffs in the past does not constitute a reason to now allow this modification. To do so would be unfair to competitors
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who have chosen not to polish their transmissions in accordance with the GCR's FV rules, as they would need to incur significant
costs to make this modification. Regarding the author's questions, the RRCC has determined the following: 1) tech inspectors
have the ability to recognize the difference between a worn part and a polished part; 2) tech inspectors may have the tools to
disassemble a transmission on site, but disassembly is not required to determine whether its components have been polished; 3)
if a transmission is disassembled, an appropriately cleaned part should look like a new gear, which to a trained eye does not look
like a polished gear.