pinion angle

[Panoz60]

Brian,

That is one example of several different approaches. They also make them with hydraulic fluid with cockpit adjustments. The reason why they will not fit a Panoz is they are meant for 3-link suspensions. Basically, they become the third link vs. a standard, solid bar.

As far as rebound, yeah- I goofed that one when I was typing. If you have too much rebound the shock reacts too slowly and acts like a tie-down shock. An example would be where you push down on a rear corner of the car and when you realease you can see the back of the car reacting slowly. This would only be effective on a smooth track IF you do not have enough rebound, it can't react quickly enough. Both instances can cause wheel hop. In all likelihood, David does not have enough rebound. My Opinion.

[Cobra4B]

I need to re-read my book on suspension tuning as I get this stuff mixed up in my head. Re-thinking rebound. If I "increase" the rebound on the shock does that make it stiffer and thus slower to extend, or does that make it extend faster/harder?

Gary's explanation, "keeps the rear end down under braking", makes it seem that increasing rebound makes the shock extend more slowly.

[glenbinegar]

Increasing rebound damping would slow shock absorber extension. G;-)

[Panoz60]

what glenbiegar said.

In my racing vocabulary, Increasing rebound means increasing the resistance of the shock extending. Didnt mean to be confusing.

on my former AS Mustang, it was impossible to achieve anti-dive in the geometry because of the rules. My solution was a "Pro-Shock" package on the rear that had a 4 compression and 7 rebound (non-adjustable externally) this was basically a tie down shock package for the rear that kept the car from wanting to stand on its nose during braking. finally I could use all four calipers, but it introduced wheel hop under acceleration. I increased the pinion angle to nearly four degrees and decreased cold pressure slightly (which lessened the wheel rate) and the problem was solved. My long winded diatribe is intended to offer my experiences in the relationship of pinion angle and shock packages.

[Cobra4B]

Not confusing at all... discussion is good. I'm new to stick axles and adjustable shocks. My Corvette runs on stock 2004 Z06 shocks due to class rules. Setting the car up is simple and it works. Having different settings is new to me.