Shim the Rear End? Remove Some Negative Camber? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Shim the Rear End? Remove Some Negative Camber?
Posted by Mark in C-Springs (more from Mark in C-Springs) on Mon, 17 Jan 2005 13:14:36
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I've been reading posts about people with uneven tire wear on the rear of their 9-3s. I've got a 2000 base model, and I noticed it the other day, while under the rear of the car with a friend who is going to help me fabricate a 1" sway bar (this will be cool, relatively cheap, and will result in a sway bar I trust). The wear is on the inside of both tires, and I thought that I had a problem with either toe-out or too much negative camber.
I do my own alignments, and I'm quite acquainted with the process. I used a long length of tubing with water in it to check how level my garage floor was, and after getting the car truly level with shims of wood, I pulled out my camber gauge, accurate to 1/8 deg, and found that both rear wheels are within spec: The right side has -1 3/4 deg camber, while the left side has -1 1/2 deg (spec is -1.4 to -2.0 deg). I checked rear toe-in, and found that to be in-spec as well.
Before making the measurements, I was ready to get N-body shims and fix the camber/toe as necessary. Now, I know it's within spec, and I'm still thinking about reducing the rear camber.
Finally! Here's my question:
Has anybody reduced their negative camber to below factory specs? By how much? Did it hurt their cornering capabilities?
I'm not looking for feedback about how the blessed factory knows everything--since we all know about the tire wear problems. I'm looking for empirical evidence that bringing camber angles closer to zero is a good or bad thing to do.
posted by 68.64.20...
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