Please help me with the correct offset for these wheel size for my FD ( without rolling any fenders)
18X9 or 18X9.5 FRONT
18X10 or 18X10.5 REAR.
My car is LOWERED with Eibach springs (1 inch). The frond has 13-inch rotor and rear has M2 trailing arm.
I have search buy guys who have these size did not stated that whether or not they have lowered their car.
Thanks

 

By the way..I'm planning 245-255 front and 285-295 rear.

 

Just stick with the proven fitments:

18x9 +45 to +50 offset up front with 255/35s

18x10 +50 offset in back with 285/30

You may still rub since Eibach's lower your car an 1-inch without significantly higher spring rates. You may want to run slightly more camber, run stiffer shocks, run larger anti-roll bars, etc., but you'll probably be OK as is.

 

but I have a little more clearance to the rear with the M2 trailing arm. That's mean I can go 18X10.5 with 45-50 offset right??Can any body verify this??

 

45-mm offset with 10.5 x 18 is what you need with your 295/30-18s. Should be ok with stock trailing arms, but M2 trailing arms buys another 1/4-inch or so.

Otherwise rynberg is spot on with 45-mm offset for 9 x 18. If 9.5 x 18, you'll need 50-mm offset front. You guys should have this memorized by now. Did I mention this question comes up OFTEN?

 

SleepR1, I have spent an hour looking over that "wheel/tire fitment". I kidda get the front down but no one have my case on the rear. But thanks for the respond here.!!

 

You're right about your rear fitment. No one has done that one yet...Good job on the research Let us know how it works out!

 

Ya please. I know the fenders will need to be rolled with the +45 10.5" in the rear. Guaranteed. In fact, look at Big Red's car. He has rolled fenders with 18,10 +38 offset. The 10.5 +45 should sit in about the same spot. So not too bad at all.

Rishie

 

sleepR1 , I thought you have 18X10.5 with 285/30/18 rear for your track set up. Did you have to roll the fender??

 

Wanted to but have not pulled the trigger on the purchase of race-only wheels/tires; I'm financially tapped out with my Rx7 project (upgrading motor and turbos).

Regardless, the tires would be 285/30-18 Hoosier R3S03s in back on 10.5 x 18, 45-mm offset Volk CE28Ns. The R3S03s in 285/30-18 are 24.5 inches in overall diameter (~0.5 inch shorter than stock), so I didn't think I'd need to roll rear fenderlips?

With road tires in 295/30-18 on 10.5 x 18, 45-mm offset, Rishie is probably right--rear fenderlip rolling would be a prudent move to avoid paint problems.