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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Sway Bar Question



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      08-19-2011, 01:16 PM   #1
Lou2
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Sway Bar Question

I have a 2007 328xi sedan and was wondering if anyone was running upgraded sway bars in front and rear.

Ive noticed alot of oversteer when turning at speed. Will upgrading to something like UUC swaybars help with this?
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      08-19-2011, 01:20 PM   #2
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Really? A staggered wheelset will cure that.
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      08-19-2011, 09:50 PM   #3
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A lot of "oversteer" at speed means you're swapping ends of the car.

Seriously, most of you people here don't know what understeer or oversteer is, don't toss about terms you don't understand.
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      08-20-2011, 07:55 AM   #4
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Hack, thanks for answering the question. Sorry for trying to learn a little something and understand why my car is doin this.

Last edited by Lou2; 08-20-2011 at 08:13 AM..
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      08-20-2011, 11:42 AM   #5
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Lou,
Maybe you can describe what is happening when you say your car oversteers? Does the rear end loose traction and come around? That can happen to me when I get on throttle too hard in a round-a-bout with my Winter square 225/17 set up, but I've got alot more torque. Don't know about the 328xi; that's why I mentioned a staggered wheel set.

@Hack: couldn't just let it go? Not everyone on this forum is a car parts salesman or CCA instructor. Thanks for the educational posts; please save the arrogance
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      08-20-2011, 07:28 PM   #6
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does he sell bmw parts? can i get a discount on some performance parts.
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      08-20-2011, 07:49 PM   #7
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Quote:
Originally Posted by Lou2 View Post
Hack, thanks for answering the question. Sorry for trying to learn a little something and understand why my car is doin this.
most stock cars from the factory are set to understeer maybe thats why hack made those comments. You can try some coil overs. Or just try some high performance tires. large rear sway bar and no lsd can lead to traction problems aka spinning out. Upgrading suspension takes a lot of testing and things to consider e.g. your driving style, what you are trying to accomplish etc. The best way to start in my opinion is to get a few high performance driving school days under your belt so you can get a good feel for your car and how it behaves. Then start to work and correct the stuff you don't like about your car understeer/oversteer/braking etc.
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      08-21-2011, 02:30 PM   #8
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Quote:
Originally Posted by cvc 22349a View Post
@Hack: couldn't just let it go? Not everyone on this forum is a car parts salesman or CCA instructor. Thanks for the educational posts; please save the arrogance
No I can't. Bad information perpetuates more bad information. And ignorance on the Internet means it's 10x harder for me to do my job. Look at the other threads I've responded to. No matter how hard one tries, MORE of the same bad info gets passed around as the truth and the end result is posts like this where "my car is oversteering at high speed" when said poster have no idea what oversteering even means.
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      08-22-2011, 02:55 PM   #9
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I just joined the site and been reading a lot of the suspension and track posts appreciate a lot of the stuff Hack has to say. Looks like he's got some experience with this stuff. Try not to take it too personally.

It's a tough thing for most of us to do, but it tends to be natural to think we all know a lot about suspension when we really don't. I think a lot of random suggestions can be thrown around in suspension forums.

A staggered wheel setup with larger wheels might help in the back if the original poster is really getting oversteer at high speeds, if that's even what's happening. But seems like that shouldn't happen, and if it is happening, you might just be masking another more serious problem.
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