s2000Junky

That would force a 275/40 up front. 315 would be the equivalent in overall diamiter to this. But 11" would be better suited on a 295. 315 on 11 would work but it would be a bit pinched.

If he stuck to 18 he could do 285/295 stagger on those widths.

DavidNJ

All that glitters is not gold. Not quite sure why any of these fenders are needed for a track only car, people have fitted 315 just pulling and rolling...but this is a video where the Spoon fender is trimmed to fit a 255 tire.


To me, the process here is backward...starting with the fenders. What events, what rules, what budget?

s2000Junky

Yeah me.

There are no rules for lapping days. If OP is getting into competition with rules, then this entire thread is void and he should start another asking what the max size tire he can run per class of competition he plans to run in.

o'malley_808

Thoughts on doing RPF1 17x10 +38 square setup? How much room for what size tire will I have with these spoon front/rear?

s2000Junky

255/40 ideally for overall diameter. but isn't an upgrade over stock fender fitment. You could do 275/40/17 but now your getting into a tire that is substantially larger overall diameter then stock and may likely give you some fitment problems up front unless you staggered with a 255. More ideal would be to run 18's and get into the 285 -295 section width which will also maintain overall diameter balance. This will require a different wheel choice though.