(please read!) tire diameter ? - Subaru WRX Forum
 
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post #1 of 8 Old 03-25-2003, 05:48 PM Thread Starter
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duba-u-R-x is an unknown
(please read!) tire diameter ?

ok ive got 17's with 255 40's on them, i just heard anything smaller than a 45 series tire will damage all kinds of stuff on a wrx, abs, LSD, ect......... please tell me if this is true or not, because me and my friends have bigger diameter tires on our wrx's and we dont want to hurt them! thanks.
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post #2 of 8 Old 03-25-2003, 06:36 PM
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WhatleyWRX is an unknown
As long as they are all the same size, I can't imagine why they would damage the LSDs, or why the ABS would care (maybe if they were much much smaller or much much larger than stock). If the front was smaller than the back, I'd imagine your center diff would hate life, for a short time before it wore out.

You have 255's on 17's? How wide are the wheels 8"? 255/40/17 would actually be fairly close to stock size anyway.

Whatley.
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post #3 of 8 Old 03-25-2003, 07:19 PM Thread Starter
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duba-u-R-x is an unknown
thats what i thought, the only i noticed was that the tread on my back tires was slightly more worn in the back than in the front, will that hurt anything,? but there all the same size though.
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post #4 of 8 Old 03-25-2003, 07:25 PM
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topDog is an unknown
255 is a little bit too wide, I would use 225/40/18 . I dont think they hurt abs or anything, unless you were to upgrade the caliper brake
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post #5 of 8 Old 03-25-2003, 09:26 PM
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By my calculation your tires are 25.03 inches in diameter. The stock size tires on the 16 inch wheels are 24.87 (some say the RE92 Subaru spec tires are 25.1 inches don't know why they are different than normal RE92s). So you are fine as far as diameter goes. The width may cause rubbing depending on the offset of your wheels with the wagon being more likely to rub than the sedan.

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post #6 of 8 Old 03-26-2003, 11:08 AM
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Mattr762 is an unknown
225 is preferred, but I would never go over 235. 255 is way to wide and some rubbing will occur.

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post #7 of 8 Old 03-26-2003, 11:29 AM Thread Starter
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duba-u-R-x is an unknown
no rubbing at all, but i have not lowered it yet, so has this been a problem on lowered wrx's?
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post #8 of 8 Old 03-26-2003, 11:34 AM
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Mattr762 is an unknown
Yes. Rubbing will occur. How wide are your wheels? What is the offset?

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