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Sedans Ultimate AWD Sports Sedans
828 messages, Last post on Oct 03, 2009 at 9:40 PM
You are in the Sedans Forum. Your Hosts are pat & karens
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Replying to: shipo (Mar 20, 2008 4:14 am) |
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Replying to: shipo (Mar 19, 2008 6:06 pm) I know that Subaru specifies the circumference (2*pi*r = pi*diam) must be within 0.25". So that 535xi is outside of Subaru's tolerances. The difference in circumference would be 0.13" * 3.14 = 0.41". Well over the 0.25" Subaru would allow. The interesting thing is this probably means BMW's AWD system allows for more wheelslip before it would react, i.e. it seems to have looser tolerances for rotational differences from axle to axle.
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Replying to: ateixeira (Mar 20, 2008 12:35 pm) I'd think you could find variances larger than that on new tires of the same model.. You sure the 0.25 inches isn't diameter?
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Replying to: kyfdx (Mar 20, 2008 1:57 pm) That's Subaru's specification, at least. People complain when they blow out one tire (beyond repair), because if you have more than 10,000 miles on your other 3, you need a new set, or you have to shave the new tires to match the others, or find a used tire with similar wear. Most people just buy 4 new tires. |
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Replying to: shipo (Mar 20, 2008 4:14 am) If 17" is an ideal size, does that mean, in your opinion, that if I upgraded from the standard 17" wheels on my 535Xi to the optional 18" wheels and appropriately sized tires (probably non staggered per your comments) that it will not improve the handling of my car? Thanks Bruce
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Replying to: bruceomega (Mar 21, 2008 11:48 am) Best Regards, Shipo |
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Replying to: bruceomega (Mar 21, 2008 11:48 am) A friend had a Z3 with big wheels and bent 3 rims. No kidding. They're expensive to replace, and in some cases he even had to wait for a special order. Tires are also more expensive. Finally, it adds to your unsprung weight, compared to a lighter 16" or 17" alloy of the same construction. |
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FWIW, I just read where BMW is now offering an aftermarket performance suspension for the 335Xi: http://accessories.bmwusa.com/ItemView.aspx?modelId=280&perf=true&categoryId=136- &productCategoryId=&menuId=0&subItemId=3 With a tighter, sportier feeling and lower suspension setting of 15mm in comparison with series-production vehicles, the inclusion of a BMW Performance control arm with stiffer bushings gives your 3 Series an almost instinctual feel for the road. With adjusted spring rates and bushings, roll is drastically reduced, creating cat-like quickness, increased responsiveness, and stunning agility. Flexing with the motion of your vehicle around even the tightest curves, a BMW Performance control arm means athletic handling, faster turn-ins, and a totally immediate and much more intense reaction to the tarmac. It delivers a perfect compromise between racing car performance and driving comfort. $695.00 Each price is the suggested retail price and is subject to change. Price excludes installation and taxes Bruce
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Replying to: bruceomega (Apr 15, 2008 11:42 am) Regards, OW |
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Replying to: bruceomega (Apr 15, 2008 11:42 am)
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