I am willing to put a set of volk rays ce28 time attack on my evo7 the rims are 18x8.5
I tried 245/45 r18 but they rubbed on the inner of the front fender while turning..what is the best size on these rims..my suspension is totally stock but am willing to lower the car soon on coilovers so what is the best tyre size that wont rub

 

We need the wheel offset to fully understand the setup

To start with, the 45 series is too tall for your situation. The basic go-to tire size
would be a 245/35 or 255/35

 

Two most popular sizes are 235/40-18 and 255/35-18, with more people using the 255's.

 

Here it is Of. +30

 

Ran you no.s on the calculator. You certainly have choices in tire size. As noted, the 255/35 would be a very popular choice. You will likely need a rear fender roll to make this fit

If you want a bold, aggressive looking tire the 255/40. This would require a bit more rear fender work & possibly a bumper bolt relocation

 

I dont want to roll the fenders.. I just want to lower the car with this rims without any problems so what will fit perfectly on a lowered car can i run 245/40 or 235/45

 

The+30 wheel is making this a bit tough to fit w/out fender work. Looks like a good choice is the 235/40 (note, this size is very close to the stock EVO tire circumference). The 45 series is taller & will give you an approx 4% speedo error