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18" Wheels + Tires fitment question

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Old 04-13-2012, 12:49 PM
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Default 18" Wheels + Tires fitment question

I'm looking at a more aggressive set up for my S.
I was thinking about moving my rear 18x8.5 +45 offset wheels to the front and run 225/40 R18, and go with a 18x9.5 +45 offset wheel for the back and run 255/35 R18 tires.
Today I went to Motorsport Techniques in Hayward, and they told me that I will probably rub with a 255/35 in the back, so they suggested a 245/40 for the back, which is something that didn't sound right to me.
Now my question is: am I gonna have to run a really ridiculous camber if I wanna stick with 255's in the back while having a 18x9.5 +45 offset wheel?
Also. All my fenders are rolled (front ones pulled too)
Old 04-13-2012, 01:54 PM
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Try maxing out your camber. Did you talk to ken at Motorsport? He usually knows his stuff
Old 04-13-2012, 02:42 PM
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Not sure if it was Ken. He seems to be the owner, Asian, on his 40's, with glasses.
I went there cause I had my alignment done over there and I liked how he worked a lot.
Old 04-13-2012, 02:49 PM
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you should be fine, im running
17x8.5 +40 235/40/17 -1.7 camber
17x9 +40 255/40/17 -3.2 camber
and my ride height is pretty low
Old 04-13-2012, 02:56 PM
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Originally Posted by MarcoPiper
Not sure if it was Ken. He seems to be the owner, Asian, on his 40's, with glasses.
I went there cause I had my alignment done over there and I liked how he worked a lot.
Yea that's ken. He's good people

Originally Posted by chViETnk
you should be fine, im running
17x8.5 +40 235/40/17 -1.7 camber
17x9 +40 255/40/17 -3.2 camber
and my ride height is pretty low
Last time I saw your car were you tucking tire? Seemed that low lol
Old 04-13-2012, 04:20 PM
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you should be fine with 255's. my car is slammed with 18x9.5 et50 on 255's, rolled rears and about 3-3.2 camber and no rubbing at all.
Old 04-13-2012, 05:06 PM
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I just texted the previous owner of my S and he said he was running 18x9.5 +38 with 255's in the back, so it looks like I'll be fine.
Old 04-13-2012, 08:59 PM
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Be prepared to camber out along with roll fenders, relocated tabs perhaps and shaved bumper lip... Im about -2 or 3 on my rear camber, slightly lowered with 17x9 +42 on 255/40/17 and I still rub... It doesn't rub my fender just the bumper tab and bumper lip.. Take all your precaution so you only need to worry about it the first time.. I learned the hard way.. Had to have my tire custom shave my bumper lip and hit the bumper tab out the way.. Good luck
Old 04-17-2012, 10:33 AM
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Roll the fenders. Never go with 245 in the back on 9.5 wheel! It's way too skinny!!! You wil spin out a lot
Old 10-15-2012, 04:32 AM
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good info here...


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