Steering deflection on bad roads?

cvc 22349a · 09-21-2009, 11:10 AM

When I hit a rut or crack in the road while in a curve my steering wheel deflects. It's a momentarily uncontolled feeling.. Any one know what causes this: soft bushings, upper shock mounts...? I have the stock sport supension with Koni FSD's and 19" Alufelgen CSL reps with PS2's.

ALUFELGEN · 09-21-2009, 07:38 PM

Quote:

Originally Posted by cvc 22349a

When I hit a rut or crack in the road while in a curve my steering wheel deflects. It's a momentarily uncontolled feeling.. Any one know what causes this: soft bushings, upper shock mounts...? I have the stock sport supension with Koni FSD's and 19" Alufelgen CSL reps with PS2's.

What you are describing sounds like bump steer. I would recommend getting an alignment and adjusting your camber to maximum factory allowable and adjust your toe-in as well.

-Matt

lonestar22 · 09-21-2009, 10:39 PM

my car does this horribly.. every grove in the highway my car wants to be apart of

cvc 22349a · 09-22-2009, 09:39 AM

Quote:

Originally Posted by AluFelgen

What you are describing sounds like bump steer. I would recommend getting an alignment and adjusting your camber to maximum factory allowable and adjust your toe-in as well.

-Matt

Will give that a try Matt. Just don't want to lose too much straight line stability. I was just mentioning my mods; I don't think this has anything to do with the wheels/tires.

200Duece · 09-23-2009, 10:58 AM

that's pretty typical for the stock suspension unfortunately

cvc 22349a · 09-23-2009, 12:37 PM

It sucks. The roads really suck up here. Gonna try changing alignment settings. Just thought I might be able to minimize or eliminate that with different bushings. Don't even know where I could get different shock mounts. And even then, I'm sure there'd be tradeoffs..

Tee-Dub · 09-23-2009, 01:11 PM

Quote:

Originally Posted by lonestar22

my car does this horribly.. every grove in the highway my car wants to be apart of

Typical of every BMW I've owned. That precise sensitive steering performance comes with a price.

09-21-2009, 11:10 AM	#1
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	Steering deflection on bad roads? When I hit a rut or crack in the road while in a curve my steering wheel deflects. It's a momentarily uncontolled feeling.. Any one know what causes this: soft bushings, upper shock mounts...? I have the stock sport supension with Koni FSD's and 19" Alufelgen CSL reps with PS2's.
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09-21-2009, 10:39 PM	#3
lonestar22 Ground Clearance? 232 Rep 1,651 Posts Drives: 540i & X5 Join Date: Jul 2009 Location: DFW iTrader: (-1)	my car does this horribly.. every grove in the highway my car wants to be apart of __________________ E90 330i - E90 335i - E92 335i
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09-23-2009, 10:58 AM	#5
200Duece Colonel 45 Rep 2,575 Posts Drives: '73 2002,'18 X5 35d,'17 328d T Join Date: Jan 2007 Location: A Whale's Vagina, Ca iTrader: (5)	that's pretty typical for the stock suspension unfortunately __________________ 1988 E28 535is Euro Conversion --- sold 2009 E90 335 6MT --- sold 2003 E39 540iT Msport --- sold
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09-23-2009, 12:37 PM	#6
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	It sucks. The roads really suck up here. Gonna try changing alignment settings. Just thought I might be able to minimize or eliminate that with different bushings. Don't even know where I could get different shock mounts. And even then, I'm sure there'd be tradeoffs..
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