Is it a problem to run a tires 1/4" taller in the front?
08-01-2006, 09:07 PM
#1
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Is it a problem to run a tires 1/4" taller in the front?
I'm trying to piece together a temporary solution to replacing the front tires until my new rims get here in a month or 2. I've found a pair of Toyo T1-S that I could mount on the front, but the Toyo specs say the tire height is 25.1 vs. 24.9 for the factory Potenzas... both tires are 225/45/17's. Could running tires with different heights (by 2/10ths of a inch) cause problems with the center differential or any other related parts?
08-01-2006, 09:51 PM
#3
Originally Posted by newyorkreload
on wrx with the open diff in front i don't see it being too bad but on STi things are different
You should get all four tires the same size. More the 1/4" is bad for the center diff in the long run of your vehicle (plus I'm guessing its actually more then 1/4" because your stock potenzas are probably worn a bit).
08-01-2006, 09:58 PM
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That's what I was worried about. I Pm'd Luke at the Tire Rack to confirm, but what you guys are saying is what I was thinking. Maybe I could have them shaved down to almost nothing and get my 2/10th's of an inch back LOL. I only need a solution until my new rims and tires get here in about a month. It looks like I may be driving on of our other cars and looking at an STi with a temp tire on the front for a few weeks unless I can find a used RE070. Thanks for your help guys!
Last edited by iceman302; 08-01-2006 at 10:01 PM.
08-01-2006, 10:30 PM
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Originally Posted by sonicsuby
1/4" is supposed to be the max you can run. wish I had a set of wheels you could borrow :\
08-01-2006, 10:41 PM
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Originally Posted by sonicsuby
1/4" is supposed to be the max you can run. wish I had a set of wheels you could borrow :\
08-02-2006, 12:01 AM
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Originally Posted by newyorkreload
on wrx with the open diff in front i don't see it being too bad but on STi things are different
uhhh the front being open diff has nothing to do with it. we are worried about the center diff here. the front tires are rotating at a different speed than the rear, not left to right as an open diff in the front would be concerned about. having different sized tires front to rear will increase the heat levels in your center diff as it has to compensate for the mismatched speeds. this heat CAN cause damage, it certainly puts wear on the part. whether or not this will matter in the lifespan of the car i cannot say. i beleive the 1/4" is circumfrence, not diameter. could be wrong on that though. i would not risk it, but thats just me.________
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Last edited by svek; 02-20-2011 at 02:29 PM.
08-02-2006, 12:37 AM
#9
Originally Posted by svek
uhhh the front being open diff has nothing to do with it. we are worried about the center diff here. the front tires are rotating at a different speed than the rear, not left to right as an open diff in the front would be concerned about. having different sized tires front to rear will increase the heat levels in your center diff as it has to compensate for the mismatched speeds. this heat CAN cause damage, it certainly puts wear on the part. whether or not this will matter in the lifespan of the car i cannot say. i beleive the 1/4" is circumfrence, not diameter. could be wrong on that though. i would not risk it, but thats just me.how are both front wheels effecting the center... if it's open?
08-02-2006, 12:42 AM
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Originally Posted by newyorkreload
how are both front wheels effecting the center... if it's open?
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Last edited by svek; 02-20-2011 at 02:29 PM.
08-02-2006, 04:27 AM
#11
Originally Posted by svek
center diff isnt open. its a viscous type. the front of a wrx is open, the center and rear are a 'limited slip' type diff.
08-02-2006, 07:46 AM
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Originally Posted by iceman302
That's what I was worried about. I Pm'd Luke at the Tire Rack to confirm, but what you guys are saying is what I was thinking. Maybe I could have them shaved down to almost nothing and get my 2/10th's of an inch back LOL. I only need a solution until my new rims and tires get here in about a month. It looks like I may be driving on of our other cars and looking at an STi with a temp tire on the front for a few weeks unless I can find a used RE070. Thanks for your help guys!
Deede
08-02-2006, 08:00 AM
#13
Originally Posted by newyorkreload
yes i under stand that, so how does one tire in the front being different then the other three become an issue?
08-02-2006, 08:27 AM
#14
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Originally Posted by newyorkreload
yes i under stand that, so how does one tire in the front being different then the other three become an issue?
08-02-2006, 08:30 AM
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Originally Posted by Mr. Xevious
how bout you try it and report back the results