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Those Running 255/40/17 on stock rims

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Old Oct 12, 2007 | 06:51 PM
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From: Dirty Jerz
Those Running 255/40/17 on stock rims

Seems like the handling is way off.......I have the Kumho Ecsta ASX....and it seems when cornering, fast lane changing, whatever, the back seems to want to kick out like heavy understeer...almost feels like the tire is rolling over the sidewalls somehow......wondering anyone runnin this, what psi you are running in all your tires...
Old Oct 12, 2007 | 06:54 PM
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No problems here, 35psi in the front 32psi in the rear.
Old Oct 12, 2007 | 07:04 PM
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From: Dirty Jerz
and you dont feel any extra understeer??....maybe i'm just paranoid, i need a drop bad, maybe that'll help
Old Oct 12, 2007 | 07:07 PM
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Well, first of all, it has nothing to do with running 255/40s on stock rims. It's that fact that you're running crappy all seasons that is causing very poor handling.

Secondly, understeer is when the rear does NOT rotate, and you just keep going straight despite turning the wheel. The rear kicking out is oversteer.
Old Oct 12, 2007 | 07:34 PM
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From: Dirty Jerz
technically they are rated as ultra high performance from tire rack, but i'm sure your intelligance supersedes there posted rating.....yes i may have mixed up over and under steer definitions......but anyway, on your setup, what type of pressure are you running and what do you recommend i do to lesson that feeling, rear sway perhaps?....or is it just my crappy tires causing this hands down.
Old Oct 12, 2007 | 07:37 PM
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The name is not a rating - the treadwear is the real rating. Everything they say in words is RELATIVE to the class of tire. That may be ultra high for an all season, but that means it still sucks ***** compared to a real summer tire. All seasons are no seasons. They cannot handle or perform - period.

Tire pressure and sway bars are not the problem. A rear sway upgrade would cause MORE oversteer.
Old Oct 12, 2007 | 07:38 PM
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Try turning in slower, and be smooth - Remember slow in - fast out. This is especially true in the evo where there is such a front bias. You should be able to go pretty freakin fast with your stock suspension and some modified driving habits...

Marek
Old Oct 12, 2007 | 08:31 PM
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ok..so in other words, deal with it its normal for the setup i have.

thanks for the replies all
Old Oct 12, 2007 | 11:09 PM
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Actually, no, the answer is to get tires that belong on the Evo so that it can perform how it was designed. Ever try sprinting in dress shoes?
Old Oct 13, 2007 | 09:15 AM
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Originally Posted by Warrtalon
Actually, no, the answer is to get tires that belong on the Evo so that it can perform how it was designed. Ever try sprinting in dress shoes?
no, but i can tap dance like a mother!
Old Oct 13, 2007 | 09:25 AM
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What it actually seems like, is you're running too wide a "soft sidewall" tire.
The only success I hear of with 255's on stock rims are Falken RT-615's, due to their very stiff sidewall.
Old Oct 15, 2007 | 04:43 AM
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From: Dirty Jerz
i think it may needed tojust have been broken in...it actually feels better now
Old Oct 15, 2007 | 07:38 AM
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The evo WAS meant to be driven on those nice expensive Advan's, so stepping down to budget all-seasons is like kicking that nice Japanese engineer in the crotch.
Old Oct 15, 2007 | 02:55 PM
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Its the tires.

I drove my 03 in the winter and there was a night and day difference between all seasons and advans.

If you think about it.... all the performance of your car is put to the ground on four little contact patches about the size of a shoe print. Everything goes through the cars shoes. The single one place you cannot cheap out on is tires.

Nothing but an R compound can touch the ADVANS. I've been there and tried darn near everything from wider to shorter and nothing can touch but advan.
Old Oct 15, 2007 | 03:25 PM
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Originally Posted by Warrtalon
The name is not a rating - the treadwear is the real rating. Everything they say in words is RELATIVE to the class of tire. That may be ultra high for an all season, but that means it still sucks ***** compared to a real summer tire. All seasons are no seasons. They cannot handle or perform - period.

Tire pressure and sway bars are not the problem. A rear sway upgrade would cause MORE oversteer.
I agree with his ball sucking all season tire comment.



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