SCCA T-1 Viper Rules?

[Achilles99]

Does anyone remember whether or not the Viper is still required to run air restrictors? How about tire limitations? I remember during the last T1 race on SV, the announcers made a point about Vipers having to run smaller tires... did I remember that correctly?

 

[FrankBarba]

Contact SCCA, get a current GCR. This will help you in your quest for knowledge, or you could just call bobby archer in texas.

 

[Rich Wesorick]

Current T1 rules require 55mm inlet restrictors. Smaller tire sizes are not required in T1 - that was for SPEED GT last year. In fact, I believe you can run wider (than stock) fronts.

 

[NCVCA]

You can run 20MM (in 10MM increments) wider or narrower tires on all four corners. This is a bit of a trick since 195 Hoosiers are not readily available.

You may not change the factory rim width (which is 10" front and 13" rear on Vipers).

 

[Rich Wesorick]

295, not 195, fronts...