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Time attack Evos and wheel size

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Old Jan 16, 2014, 04:46 PM
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Well I don't so any competitive racing. I honestly just asked because those guys need the most grip so I was curious what they run. Right now the evo is a street car that I want to turn into a street beast until I get a nice daily then turn the evo into a weekend ride/track *****. I'm going to go with 17x9 this go around and hope I can get 265's to work without much headache.
Old Jan 16, 2014, 05:12 PM
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255/40 is perfect on a 17x9 wheel.
Old Jan 16, 2014, 05:18 PM
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Originally Posted by terror rising
255/40 is perfect on a 17x9 wheel.
Should I have any issues with rubbing/fitment on stock suspension.
Old Jan 16, 2014, 05:29 PM
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That all depends on the wheel's offset. I specifically went with 17x9 +35 FN01R-C wheels for their perfect fitment. I'm lowered on GTWorx/Bilsteins and have no issues even during auto-x. No fender work required.
Old Jan 16, 2014, 10:25 PM
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Originally Posted by terror rising
That all depends on the wheel's offset. I specifically went with 17x9 +35 FN01R-C wheels for their perfect fitment. I'm lowered on GTWorx/Bilsteins and have no issues even during auto-x. No fender work required.
Good to hear. I'll stick to a 17x9 255/40 setup. Is this traction increase over stock noticeable?
Old Jan 17, 2014, 10:55 AM
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Originally Posted by Viegasjuice
Good to hear. I'll stick to a 17x9 255/40 setup. Is this traction increase over stock noticeable?
Depends on tire of course, but assuming the same tire compound, yes 255/40 will of course have more traction that 235/45.
Old Jan 17, 2014, 01:51 PM
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Originally Posted by SKILMATIC
except on a 17in wheel you won't be able to run a BBK which is important to the TA or road race guys. So if you ever plan on upgrading brakes you may not want to do a 17in wheel. I have a set of 17x9.5 +22 with 255nitto nt05 collecting dust...
the essex/AP racing kit fits stock wheels FYI. plus id contend that A LOT of guys still run stock calipers.
Old Jan 17, 2014, 02:06 PM
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Agreed, stock calipers are perfectly suitable for the majority of track drivers IMO.
Old Jan 17, 2014, 03:02 PM
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Originally Posted by Raptord
Agreed, stock calipers are perfectly suitable for the majority of track drivers IMO.
Yup. With our brake bias, and decent factory brakes its a substantial cost for less gain than some other cars. If I upgrade calipers it will be to something like Alcon 6-pots, but they are NOT cheap.
Old Jan 17, 2014, 03:05 PM
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If deciding to run a 255 or 265 tire. Would it be more suitable to run a 35 profile?
Old Jan 17, 2014, 03:12 PM
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Originally Posted by Viegasjuice
If deciding to run a 255 or 265 tire. Would it be more suitable to run a 35 profile?
In 17"? No, you'll want 40.
Old Jan 17, 2014, 06:54 PM
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Originally Posted by Raptord
In 17"? No, you'll want 40.
I'm not the most knowledgeable but why? I don't fully understand tire specs.
Old Jan 17, 2014, 07:18 PM
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A 255/35 would be ~1.3" smaller diameter than the stock 235/45 tire size. A 265/35 would be ~1.0" smaller. There's a calculator in the wheels/suspension area.
Old Jan 17, 2014, 07:35 PM
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Originally Posted by terror rising
A 255/35 would be ~1.3" smaller diameter than the stock 235/45 tire size. A 265/35 would be ~1.0" smaller. There's a calculator in the wheels/suspension area.
So the speedo would be affected? Is that the negative here?
Old Jan 17, 2014, 07:39 PM
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Originally Posted by terror rising
255/40 is perfect on a 17x9 wheel.
Yep.

I run 255/40/17 Hankook semi-slicks on my Time Attack/hill climb Evo 6 with Weds 17 x 9" + 25 wheels. IMO, it's the perfect size for Evo 5-9 without making radical changes to your front and rear guards. You probably want to think about going wider if you're running more than 450hp.

Pic of my car:

http://www.flickr.com/photos/77990917@N06/9304579482/


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