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      01-15-2012, 01:16 AM   #1
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Best Tires for 17x9?

Considering a square 17x9 setup for the track. 255/40 maintains the stock ride height of 25" but I wonder if that's too much sidewall? Am I better off going 245/40 even though that's shorter than stock height?
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      01-15-2012, 08:46 AM   #2
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Quote:
Originally Posted by Dubbedown View Post
Considering a square 17x9 setup for the track. 255/40 maintains the stock ride height of 25" but I wonder if that's too much sidewall? Am I better off going 245/40 even though that's shorter than stock height?
Going shorter will produce slightly more torque, but you'll run out of top end quicker.

The sidewall all depends on what tire you go with. Go with a tire that has a very soft sidewall you might run into problems with roll over.
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      01-15-2012, 11:59 AM   #3
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try to keep it close to stock height as much as possible. if its shorter, your odometer will show higher speed than you are actually traveling. our odometer is naturally slower than the actual speed according to laser and gps tracking that i have used to measure the vehicle speed to compare.

255 is also the recommended tire size for 9" wheels. There is no point in getting a square setup and not running the same tire size. it defeat the purpose
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      01-15-2012, 12:01 PM   #4
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I;m running 265/35/18s on 18x9" wheels
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      01-15-2012, 12:42 PM   #5
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Quote:
Originally Posted by Hoa View Post
try to keep it close to stock height as much as possible. if its shorter, your odometer will show higher speed than you are actually traveling. our odometer is naturally slower than the actual speed according to laser and gps tracking that i have used to measure the vehicle speed to compare.

255 is also the recommended tire size for 9" wheels. There is no point in getting a square setup and not running the same tire size. it defeat the purpose
245/255 both work fine on a 9". The problem with 255 on non-m is that it may rub the strut side and I really don't want to have to use a spacer. But I agree, ideally I'd like to keep stock height but I'm just not sure what issues I may run into on hard cornering on the track as Kgolf alluded to.
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      01-15-2012, 02:39 PM   #6
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Offset play a factor in this as well. What is your offset?
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      01-15-2012, 02:53 PM   #7
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Quote:
Originally Posted by Roffle Waffle View Post
I;m running 265/35/18s on 18x9" wheels
I've ran 275 on 8.5" wheels before and it was fine. I've known some that ran 225 on 9.5" wheels too. It's just not a recommended size for the wheels. 245 is recommend for 8.5" wheels. The idea is not trying to stretch the tires if you don't have to. If you track, you want the proper size.
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