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[Z06] handling q, and spring rate selection help needed

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Old Nov 10, 2017 | 10:25 PM
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Default handling q, and spring rate selection help needed

I recently purchased this tired old bird and intend to make it rise like the phoenix it is.

highest priority is the suspension.....The Issue I am having is when I hit a pothole or something there is some drift.

I have experienced this before and it was found to be a faulty control arm bushings; but apparently after some reading this is a "normal" issue with these cars?

Regardless it has high mileage and needs some love anyway so I have all poly bushings for the control arms and poly engine/tranny mounts. I have already went with an aldan coil over kit. my justification is the stock shocks are prob gone and allegedly it fixes the "drift issue" in addition I can enjoy true independent suspension as well.

I have purchased the fronts @ 550lbs but wanted some input on the rears....i am thinking 600 but one place said they only have 550 and 650.

I want to use it 75 street/25 autocross/road course.

I just think the rear needs a little more than the front to keep it planted since it seems "light", lol.

what do you guys think? 550, 600 or 650 for rear?

additionally I will be going with gmpp front and c6z for rear sway bars.

Last edited by dohcfiend; Nov 10, 2017 at 10:34 PM.
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Old Nov 11, 2017 | 07:33 PM
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after some deliberation I decided to go with the 600lb springs
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Old Nov 12, 2017 | 12:48 PM
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That sounds about right. I have 600 front, 650 rear springs and it feels good on the street and decent at autocross.
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