Cause of squirrelly feel on hard acceleration?

[batchman]

From the sound of it (ie at higher speeds) your problem is front end rather than usual wonky rear grip.

For front stability you want *more* caster, will increase steering effort and centering. If you have a matched pair side-to-side of shims on the rear-most end of the upper arms, pull 'em both.

For front stability you want more toe-in, easy to do yourself and tune out your pull at the same time. Use small increments (like 1/8 turn).

One thing to look at that happened to my car - the rag joint loosened up on the rack end. Those joints suck anyway, tonight I'm going to try grafting in the "hockey puck" style from a regular C4. I am just afraid they went to the canvas one due to angle as it's a lot further down than the normal one...
(sorry 'cuz that sounds like a hijack)

I've never used the Banski arms (not allowed in my rules) but sometimes when you take compliance out of one joint you increase the stress on another to the point where it moves more than otherwise would. So I guess I wouldn't rule out a bushing in the rear somewhere. In fact the more I think about it the rear is a good candidate as the steering rack and bushings etc would be more wonky under cornering load than while accelerating.

Best,
- Jeff

[VetteMed]

Originally Posted by rhipsher

Ball joints to? Batwing bushings also? Just trying to narrow it down. If every things been done then I would have to say alignment time.

Yep, all ball joints were new last year, batwing bushings new poly last year.