What you raelly need to do is get
an angle finder as John B. suggested. On a factory
4-link H-body, I would shoot for 2.0Â° down. (If you need
further explanation on what this angle is and how to
check it, either myself or someone else in the club
would be happy to help you.) Ideally, you want the
pinion angle to be 0Â° while the car is going down track,
but since the rear suspension has some rotational
'give', you add pinion angle so that under acceleration
the angles come out to 0Â°. In my experience, pinion
angle has nothing to do with traction, rearend rise,
anti-squat, tire 'hit' or otherwise.
I can tell you
what worked for my Vega (YMMV), when it still had the
factory 4-link. The setup was as follows: no front sway
bar, Lakewood 90/10 drag shocks, new rubber bushings
in the rear contol arms, boxed lower rear control
arms, cheap 50/50 factory type rear shocks (not gas
charged), factory rear sway ber to combat "corkscrewing"
(body roll) and the most important thing. . .26x8.5 M/T
slicks. This setup gave consistent 1.72 60' times. I
think it could have been better, but my front end rode
fairly high, and the front suspension only had about
2.5" of rise until it hit the stops.
said. . .nothing is written in stone. Real world
testing is the only way to reach your goal.
<a href=http://home.socal.rr.com/swtracing target=new>http://home.socal.rr.com/swtracing</a>
[This is message #34618 by user SWT_Racing on Yahoo! Club GM HBODY: http://clubs.yahoo.com/clubs/gmhbody