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Old 02-07-2007, 08:12 PM   #1
06subiguy
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Default 18x8.5 WHEELS WITH 245/35/18???????

Does Anybody Know If 18x8.5's Will Work On A 2006 Subaru Wrx..non Sti.i Would Also Like To Run 245/35 Or 40/18 Inch Tires..i Keep Hearing Different Things But I Would Like To Know If Anybody Has Tried It Or Not And If It Will Work.what Sizes Would Be Recommended..i Already Have 17x7.0's But They Just Look Too Tiny.any Help Would Be Great.
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Old 02-07-2007, 08:15 PM   #2
si12j12
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what is the offset?
,and is your car lowered?
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Old 02-07-2007, 10:09 PM   #3
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Talked to Suby dude today , I have the 18x8.5 Rota torques they sell not sure whatt the offset it.

They said 40 or 35 245's will fit 07 STI
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Old 02-08-2007, 01:15 PM   #4
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You should be able to go with 18x8 wheel w/ +48 offset, 245/40/18 tire without a problem. I am lowered on H-techs and plan to go this route.
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Old 02-08-2007, 01:16 PM   #5
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245/40 is too tall. 235/40 is about right, but also too tall- by about 2%. 245/35 is the right size.
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Old 02-08-2007, 01:35 PM   #6
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If 245/40/18 is too tall, why is SubyDude offering wheel and tire packages that are 18x8 and 245/40/18? If it was going to be a problem, why would they even offer it? That setup may be a little too tall, but it's less than an inch difference from the stock size....so the overall height will increase just a little, and close the wheel well gap by close to half an inch.
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Old 02-08-2007, 03:12 PM   #7
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Quote:
Originally Posted by REXtard04 View Post
If 245/40/18 is too tall, why is SubyDude offering wheel and tire packages that are 18x8 and 245/40/18? If it was going to be a problem, why would they even offer it? That setup may be a little too tall, but it's less than an inch difference from the stock size....so the overall height will increase just a little, and close the wheel well gap by close to half an inch.
It's a safe assumption that most people want to stick to stock diameter when they're changing wheels and tires. If a wheel/tire combo is larger, they ought to know that. Here are the numbers, you be the judge. 245/35-18 is 0.1 inches shorter than stock, which is less than the difference you'll see after you've worn some tread off the tires. It's as close to an exact fitment as you're ever going to find.

Code:
Specification  Sidewall  Radius  Diameter  Circumference  Revs/Mile  Difference
205/55-16         4.4in  12.4in    24.9in         78.2in        811        0.0%
225/45-17         4.0in  12.5in    25.0in         78.5in        808        0.4%
235/40-18         3.7in  12.7in    25.4in         79.8in        794        2.1%
245/40-18         3.9in  12.9in    25.7in         80.8in        784        3.4%
245/35-18         3.4in  12.4in    24.8in         77.8in        815       -0.5%
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Old 02-08-2007, 03:28 PM   #8
06subiguy
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Thanks For All Of The Info Now I Will Just Have To Make My Final Decision.i've Been Looking @ The Volk Sf Challenge Wheel In Diamond Black...or Any Type Of Clean Multi Spoke Wheel Also.if Anybody Knows Who Gives Pretty Good Deals On Wheels And Tires...let Me Know Cuz I'm Ready To Buy.once Again Thanks For All The Info Everybody.
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Old 02-08-2007, 05:12 PM   #9
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So do you think the 18x8 w/ +48 offset, 245/40/18 will rub or is it more the fact that the speedometer will be off?
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