What offset would be necessary to allow proper clearance for these tires? 40? 38?

 

Any thoughts? 15x7 wheel...

 

tire is too tall!!!

but either offset will work.....even a 45 will ....you may have to roll your fenders the lower offset you go1!

 

I have a set of 15x7's with a 38 offset on my integra. I have very little fitment issues. I rub trying to do u-turns and on the rear arm (during very heavy cornering). I do not have any wheel liner either.

If this is a track car then if it is for your street car then

 

This is actually my brother's car, I'm just doing a little legwork for him. He'd be autoxing it in SM. I was just curious what size tire would be best. I'm able to get the Yok A032R at a good price, so I was contemplating the 205/50 or 225/50...

 

well the 225/50/15 at a little taller than the 205/50/15's. if the car is lowered and has the fender liners in still stick with the 205's. I don't think you will notice that much of a difference. I run the 225's mainly because the 205's would start to go away after 30 mins of racing on my car (races are 45 min long).

this pic does not show it very well but you can see the difference between the two

 

i run 225/50 ra1 they rub with car dropped a little had to roll the fenders and take out lining