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Upgrading Suspension

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Old Jul 21, 2007 | 01:27 PM
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Default Upgrading Suspension

I have had a 2004 corvette with standard suspension for about 6 weeks now. I have already determined that the suspension is a little bouncy especially compared to my '98 Z28 with SFC, STB, Bilsteins and Eibach Prokit.

My first thought is to upgrade it to a Z51 suspension. What would have to be done to do this upgrade to the suspension. Also any knowledge to upgrade it beyond a Z51 would be appreciated. Just keep in mind that I want to hold the road better, but not knock my teeth out in the process. I want the happy medium.
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Old Jul 21, 2007 | 04:41 PM
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Z51 should have been the base suspension, it is much better. If you are going to stay with leaf spring suspension, get some Z06 springs, Z06 sways, and 2004 Z06 shocks. Going past that will cost a lot more money and for the street is not really needed(unless you plan to lower a lot or track the car).
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Old Jul 21, 2007 | 04:45 PM
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Originally Posted by ICaughtVetteFever
Z51 should have been the base suspension, it is much better. If you are going to stay with leaf spring suspension, get some Z06 springs, Z06 sways, and 2004 Z06 shocks. Going past that will cost a lot more money and for the street is not really needed(unless you plan to lower a lot or track the car).
How will replacing these components with Z06 parts effect the ride? I admit I want cadillac ride when I'm cruising. But want Z06 ride when I'm running, if you know what I mean. I am fully aware that I can't have it completely both ways.
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Old Jul 21, 2007 | 04:51 PM
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Originally Posted by SDLS1Rider
How will replacing these components with Z06 parts effect the ride? I admit I want cadillac ride when I'm cruising. But want Z06 ride when I'm running, if you know what I mean. I am fully aware that I can't have it completely both ways.
For most normal driving the difference between the Z51 and the Z06 ride is nil. I have one of each and you don't feel the Z06 suspension kick in until you are really pushing the car.
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Old Jul 21, 2007 | 04:57 PM
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Originally Posted by Last C5
For most normal driving the difference between the Z51 and the Z06 ride is nil. I have one of each and you don't feel the Z06 suspension kick in until you are really pushing the car.
Yes, 00+Z51 front spring and rear sway bar are the same as Z06, but rear spring is 10%stiffer and 1.4mm larger bar in front. They are nearly identical, but Z06 sets seem easier to find.
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Old Jul 21, 2007 | 05:12 PM
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O4 Z06 suppension.

But if your intersted I do have an 03 Z51 suppension sitting in my basment I would sell. ( shocks, springs and sway bars & end links)
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Old Jul 21, 2007 | 05:33 PM
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Originally Posted by SDLS1Rider
How will replacing these components with Z06 parts effect the ride? I admit I want cadillac ride when I'm cruising. But want Z06 ride when I'm running, if you know what I mean. I am fully aware that I can't have it completely both ways.
The ride is mostly determined by springs and shocks. The body roll is largely determined by the sway (or anti-roll) bars. Get the Z51 or Z06 sway bars. Either 04 Z06 shocks or Bilsteins will take car of the shock portion. Keeping the base springs will somewhat keep the softer ride. Getting the stiffer Z51 or Z06 springs will definitely harshen the ride. I'm not saying it will be too harsh, as I personally have a Z51, but it will be moreso than the base springs.
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