G/C Koni Setup EF9, Rear sitting uneven, what to do.

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Old Feb 22, 2012 | 08:45 AM
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Default G/C Koni Setup EF9, Rear sitting uneven, what to do.

Car: 1991 Civic Si Hatchback
suspension: Ground Control Koni Yellow's with off the shelf spring rates
Wheels: 14x7 +27 Front +32 Rear

So here's the situation..
I recently adjusted the height of all four corners of the car because the front was rubbing on to the fenders and the rear was just too high up. After raising the car in the front (by adjusting the collar on each perch on the front two corners) and putting the car back down the car sits even in the front with equal gaps between the tire and the fender. HOWEVER when I had adjusted the back two corners EVENLY and put the car back down, I found that the right rear was perfect, where I wanted it , with about 1.5 CM gap.. BUT the left rear was tucking and the tire was very close to the fender, enough to rub going over any bump...


What is causing this unevenness? I know it could be chassis flex because this car 21 years old, or I've read somewhere that maybe the alignment is off causing the illusion that it's tucked on one side and a 1 1/2 cm gap on the other...

What should I do? Can I just raise the left side more than I have the right so that the car will appear to have equal gaps on both sides? If alignment will fix this I worry that if I raise the left rear more than the right rear to compensate then after alignment is done my car will be off again?

either how I need help..

Cliffs: height adjustable G/C Koni Setup, rear left and rear right adjustments made on the collar/perch are identical but car sits uneven in rear. Should I raise left side to compensate? I want to get alignment but I really want to have the perfect ride height before I go and get it so I won't have to make adjustments after the alignment....
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Old Feb 22, 2012 | 01:11 PM
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Default Re: G/C Koni Setup EF9, Rear sitting uneven, what to do.

Bump, anyone?
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Old Feb 22, 2012 | 01:20 PM
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Default Re: G/C Koni Setup EF9, Rear sitting uneven, what to do.

The car isn't balanced left to right, and won't sit level.
The ground you had it on might not be perfectly level, and possibly isn't even flat.
Fenders are not structurally strong, and move.

If you want to level out the car, actually measure from a structural point, not a flimsy fender. The side jack points are excellent for this.

The car wasn't level from the factory, and will never be level with equal spring rates and equal spring perch positions.

If you want it level, you're going to have to do so yourself with uneven perch positions. Just know that doing so will hurt the handling and increase the chances of uneven tire wear (you'll be putting more weight on the already heavier corners when you level it).
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Old Feb 22, 2012 | 04:56 PM
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Default Re: G/C Koni Setup EF9, Rear sitting uneven, what to do.

put your car up on jack stands. have the lca's on the jack stands. loosen up the sway bar end link bolt, and the lca bolt that connects to the shock. re tighten with the full weight of the car on the shocks/springs.

or, it might not being sitting right, and you might just have to raise it, and then lower it. ?
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