[FASTFATBOY]

I recently bought a car to start trackdays and Autox. Its a 99 Z28 with Strano Springs, 1LE front bar stock rear bar. Koni Da on front Sa on rear. Spohn LCA in rear with the matching PHB(Poly bushings). Poly bushings in all swaybar mounts. Totally rebuilt suspension in front.

The fronts are set 4 clicks from full soft on compression, havent checked rebound. Havent checked the rears they are all supposed to be out of the box installed.


I have been feeling the car out, I recently pushed it on an off ramp near home, car has good grip but if you hit a bump with it loaded it WILL get your attention. Car is all over the place you immediately start fighting the car. Its done it 3 times now.

No bumpsteer kit on the car for reference.

How do you adjust the SA rears? How do you adjust rebound on the front DA?

[prockbp]

Your current issues don't have anything to do with dampening. Don't even touch the settings on your Konis yet.

Your rear control arms and panhard bar are complete junk. Poly bushings do not allow the rear suspension to work properly, and that is going to cause severe oversteer. Your car will feel very stable to a point, and then in a split second you'll be losing the rear. If you must upgrade the rear control arms and panhard bar, then you need to use components that have spherical bearings(rod ends). Your stock control arms would work better for cornering than your spohn control arms with poly bushings.

One of the best upgrades you can do to the rear end is change the stock panahard bar to a panhard bar that has spherical bearings.

The ONLY thing you should do with that rear end set up is drag race, and even then the poly bushings will interfere with the motion of your rear end.

This post has been edited by prockbp: Nov 16 2010, 06:23 PM