dunlop direzza star spec, 265 all around.

 

Any particular reason you didn't just put NT01s on instead? Not knocking your setup at all, 315s square is pretty intense but swapping to an actual track tire seems like it would have been a lot easier.

Side note: how much power are you making?

 

I do daily drive it sometimes.The nto5s have 200 treadwear last much longer then nt01s.

 

255-260 whp

 

Well, at that power level I can't help but wonder how much an improvement you're really getting. 315 is a LOT of tire for only 260 whp. I've got 403 with 275 NT05s and I feel those provide more than adequate grip for the street, decent for tack probably.

I'm sure the guys from the Racing & Comp forum can give you better advice, but I would think it would be a better idea to have simply gone with a cheap set of wheels/tires for the street(315s would be way overkill for street), and use 275 NT01s for your track days. Just a thought anyway.

 

With 4.77 gears and prolite flywheel thats more then enough power for me and the 315s do the job for me.