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can anyone explain the advantage of having a 8.5 width over a 7.5 when buying wheels

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Old 04-04-2003, 01:18 PM
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Default can anyone explain the advantage of having a 8.5 width over a 7.5 when buying wheels

i can assume the obvious, but with all these wheels available for our cars in 7.5 instead of 8.5 or 8, it makes me feel like there is no advantage at all and i am assuming wrong.
Wider is better because there is more contact patch, and assuming you don't go too wide to the point of rubbing, you can't go wrong right?

TIA

joe
Old 04-04-2003, 01:23 PM
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Yep, more traction.
Old 04-04-2003, 01:25 PM
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Default 8.5 just plain look cooler! But more traction could be good and bad >>

More surface area also means less gas milage i.e. must be very minutely affecting acceleration etc.
Old 04-04-2003, 01:36 PM
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Question: If are using 225/40 tires -- what difference would it make if you have 8.5 v. 7.5 rims?
Old 04-04-2003, 01:40 PM
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Default i have the same thinking here....maybe because

the wheels are now taking the blunt of the weight instead of the tire....but also if i had 18.5, i would go bigger than 225 anyways.

joe
Old 04-04-2003, 01:46 PM
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Default With 8.5" rims you'll scratch the rims up a lot easier!

Personally, I wouldn't consider running anything less than a 235 on an 8.5" rim. I'm running 235's on an 8" rim now.
Old 04-04-2003, 03:10 PM
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Default Grip. in my limited experience.

I went from the stock 17x7.5 et 45 wheels to 17x8.5 et 35 wheels, I reused my old tires, On corners that I'd be pushing to take at 60mph before, they'd hook and go, not a peep. I wasn't expecting a grip increase, just wanted to replace my bent stock rims.
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