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Does the Z have a rear toe-steer problem?

Originally Posted by dAvenue I purchased the Koni's because of this bumpsteer issue. When I initially installed them, I firmed up the rears by +3 (out of 8 max) and

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Old 02-05-2012, 01:14 PM   #1 (permalink)
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I purchased the Koni's because of this bumpsteer issue. When I initially installed them, I firmed up the rears by +3 (out of 8 max) and left the fronts at +1. Took it out for a test drive that day and I noticed a significant improvement, immediately. However, there was still a little bit of residual symptoms of bumpsteer during the test drive (it got a little wobbly on me).

After reading the subsequent posts in this thread, I thought I would try firming the rears a bit more. I turned them up from +3 to +5 and left the fronts alone. Today, I took it out to the twisties and had an awesome drive. This configuration, for me, eliminated the symptoms that used to scare the hell out of me. I highly recommend considering the Koni's ahead of the adjustable control arms.
Alright! Now we're talking. What did the Koni's cost (if you don't mind) and how did they affect the ride and handling overall?
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Old 02-05-2012, 01:47 PM   #2 (permalink)
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Originally Posted by dAvenue View Post
I purchased the Koni's because of this bumpsteer issue. When I initially installed them, I firmed up the rears by +3 (out of 8 max) and left the fronts at +1. Took it out for a test drive that day and I noticed a significant improvement, immediately. However, there was still a little bit of residual symptoms of bumpsteer during the test drive (it got a little wobbly on me).

After reading the subsequent posts in this thread, I thought I would try firming the rears a bit more. I turned them up from +3 to +5 and left the fronts alone. Today, I took it out to the twisties and had an awesome drive. This configuration, for me, eliminated the symptoms that used to scare the hell out of me. I highly recommend considering the Koni's ahead of the adjustable control arms.

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Old 02-04-2012, 06:04 PM   #3 (permalink)
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Old 02-05-2012, 01:43 PM   #4 (permalink)
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Alright! Now we're talking. What did the Koni's cost (if you don't mind) and how did they affect the ride and handling overall?
They're ~$1k and improved the ride quality quite a bit. The damping is adjustable, so the ride quality will depend on the configuration you choose. For my setup of Koni and Eibach, the car holds a straight line when rolling over bumps and handles them graciously. I like the soft setting on the fronts because big bumps don't upset the chassis while the firm setting on the rears alleviates bumpsteer.
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