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Old 2008-12-08, 03:40 PM   #40
sperry
The Doink
 
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
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Quote:
Originally Posted by A1337STI View Post
MR Hubcap on E.Glendale and 395. great prices.

dewmudgeon, WHY WHY WHY are you looking for 17's? (or why does anyone who can fit 16's over their brakes look for 17s?)

do you want to optimize your cars Go fast potential? or do you want the cool look of big rims?

Moment of Inertia is I = k * M * R^2
constant K = 1 solid ring

so there for decreasing the mass of a 22.5 pound rim by 2.5 pounds has the same affect on our moment of inertia as going down to a 16". those rims i listed actually weight 13.5 lbs so to beat their moment of inertia you'll need to find a 17 that weights less then 12 pounds.

https://www.bigwheels.net/index.php?...20Flat%20Black 16X8 $688 48 offset.


BTW did you know you can fit 14" rims over rear 2003 WRX brakes? [think 13's might fit, but haven't checked]
Lot's of good wide summer performance tires only come in 17"+ sizes. As soon as Bridgestone makes an RE01R in 285/50/15, the autocrossers will be all over smaller rims.
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