Well i got rid of my old 17x7.5 and 18x8.5 rims with 235/35/18's b/c my car was breaking loose in 4th gear at over 100mph and i didnt like that ****. Now i have a set of 18x10 wheels with 275/40/18 and im still spinning all of 1st, and 2nd and most of 3rd. Ive changed up my suspension as well...i had jic flt a2 but they was way to stiff for the track. Now im running kyb agx's with tanabe springs. Whats a good sticky tire to run on the streets? But wont wear out fast as ****? Azenis maybe?