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Suspension & Braking Forum by BimmerWorld
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Old 11-15-2012, 11:02 AM   #1
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My Ride: 330ci***65104; 328i
No grip on rainin day, cause by stiff coilover?

On raining day my car feel no grip. will it because of my coilover set up too stiff? Even on dry road with bumpy condition, my rear pop up and the traction control light go on..
Will that cause the bad cornering on raining day?

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Old 11-20-2012, 06:28 PM   #2
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I'm no pro suspension tech, but from experience it may seem like it's too stiff... Are you able to adjust your settings to something softer? If so soften it up a bit and see if that effects the grip issues..

I would a assume that if its too stiff and there is a lot less give when braking and or hitting bumps.. Maybe I'm wrong but hey just my opinion..
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Old 11-22-2012, 01:28 AM   #3
da Vinci
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Tires tires tires. You need the right tool for the job.
If your tires are not keeping contact with the ground, you may have your dampers set too stiff/slow/tight. The entire job of you suspension is to keep the tires on the ground. I would not blame bad wet traction on suspension stiffness, but it is something you need to address anyway. If you do have a suspension problem it can be more obvious in bad weather. Get your shocks working and tires that perform in the conditions you use them.

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Old 11-22-2012, 08:59 AM   #4
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Two different things going own here. The first issue with traction problems in the rain has to do with the stiffness of the suspension. In low grip situations you need a softer suspension to load the outside tires more. The stiffer the springs the less load transfer.

On the second issue that is a result of the dampers not being able to control the forces of the springs over rough roads. Try stiffening he rea damping to see if it helps. If I remember correctly you have cheap coilovers on your car which a likely the issue.
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