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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Nice find: Rollcenter adjusters front wishbones



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      12-19-2012, 09:35 PM   #1
serotoninsteve
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Nice find: Rollcenter adjusters front wishbones

Hi everybody,

I only want to share a nice find on a Japanese site,
they have some custom made front wishbones to adjust the roll center.
Well I can't use them as I drive a xi model,
perhaps somebody is interested to try these out and some vendors can import them?

They look nice:

http://euro.superlap.jp/item_detail/160/

http://euro.superlap.jp/item_detail/168/

I wonder why nobody else has tried to offer something similar for the E9X.

Greets

Last edited by serotoninsteve; 12-20-2012 at 08:40 AM.
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      12-19-2012, 10:22 PM   #2
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Holy expensive
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      12-19-2012, 10:44 PM   #3
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They aren't *that* expensive in particular, that amount of Yen is about 700 dollars. But I can't figure out what the advantage is supposed to be?
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      12-20-2012, 08:54 AM   #4
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Quote:
Originally Posted by DallasBoosted View Post
They aren't *that* expensive in particular, that amount of Yen is about 700 dollars. But I can't figure out what the advantage is supposed to be?
The pivot point on the steering knuckle is moved down to bring the rollcenter back up when your suspension is very low.
This is pretty common on lowered race cars to get back the suspensions normal behaviour. Often used with bumpsteer correction kits.

Usually you shouldn't go to too low on standard suspension as the negative effects of getting a low rollcenter
are more important than the gains of the lower center of gravity.

http://thecartech.com/subjects/auto_...oll_Center.htm
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