ok. i searched and found that with a rim size of 18x8.5 i can run up to 245/35/18 size tires. however, if i drop my car with prodrive springs, can i still run that tire size? right now i got 225/40 size tires. im sure itll be ok for the drop, but just wanted to know so when i change out my tires.

 

i seen a lot of people look at this thread, but nobody replied. does anyone have any idea???

 

You would be okay with that size if you get a wheel with the proper offset. You want to be as close to +50mm as possible.

 

i have ssr competitions. 18x8.5, +48mm offset. is that close enough??

 

That should work well.

 

On SubeDude websight he ran a 255/xx/17 (may have been 40) on Rota Slipstreams 17x8 with out rubbing... not sure what springs he was using though.