Car bouncing w/ Stance coils

[240ingthe240er]

Okay, its really kind of tough to explain but I'll do my best.

After installing Stance GR+, I've been having a ton of bouncing under acceleration and braking between 35-55mph in the front of the car. I understand what stiffness feels like from riding in my friend's cars with coilovers. This is nothing like that.

The front end of the car is shaking like crazy and it's very scary. So for the mean time its sitting in the garage.

This is what I've done so far:Increase/Lower StiffnessBalance WheelsRotate WheelsSwap TiresAlignment

What I haven't done:Adjust spring load

Also, the installation instructions that came with the coilovers are terrible and don't include any specs. Is there solid documentation out there to follow? I've tried emailing StanceUSA but never received a response.

My bushings don't look that bad either so I'm 90% sure that's not the issue, though please correct me if I'm wrong. Also my sway bar is fine as far as I can tell.

Anyone know what I can do to fix this problem? Tie rods? Tension rods? FLCA?

Yes, I tried putting this in the suspension section but it's had 5 views in an hour so I'm placing it here.

If anyone has had a problem like this or knows how to fix this, please help me out! I'd appreciate it very much!

[Tsukiko]

sounds like you should have the entire front end inspected. bushings, control arms, subframes, everything.

without riding in the car and feeling it first hand, thats all i can think of.

[HoosierSX]

springs might be waaaaaaaaaay too tight

[ZX88]

how low are you your tierod end might need replacing. they can make the front feel sloppy.

[240ingthe240er]

I'm about an inch higher than your car in your signature. I think it might be tie rods also. Keep coming with suggestions!

[Beems240sx]

make sure there is no preload on the springs. Otherwise balance or try rotating the wheels

[Chris28]

Also make sure all nuts and bolts on the entire assembly are tightened.

[hbpignosePA]

Also, the installation instructions that came with the coilovers are terrible and don't include any specs. Is there solid documentation out there to follow?

ummm you need detailed instructions?

its 5 bolts for the front, 3 in the rear.

you can't mess it up, i mean you dont even take the springs off the perches like you do with a spring/strut combo.

my guess, tie rods or maybe your steering rack is messed up. (bushing maybe?)

gl figurin it out