1QUICK Z

Hey guys, I have Mickey Thompson ET Street II's now in the 305/35-18. I've cut multiple low to mid 1.6 60's on an "ok" track. I went with this size since it is the same overall height as my stock tires. I'm wondering if anyone has tried the 305/40-18 which is a little over an inch taller? Will these clear without rubbing? Will this help with the 4-5 shift at the top of the track? I will be in need of new DR's shortly and want to see if the 40 series sidewall might be a decent option? I also hate to mess up a formula that is currently working for me.

1QUICK Z

Nobody has any input? I'm looking to buy a new set of DR's this week and this will be my chance to change sizes if I want.

jason427

I have run 345/18 mickey thompson on 18x12's and did not rub. The tire was probably an inch taller.

1QUICK Z

Cool, thanks. Did the car still need to shift into 5th gear at the top of the track? Just trying to determine if that shift is a good or bad thing? It sure feels like a relatively 'lazy' shift to me.