Originally Posted by
Xian
Gotcha. FWIW, yours converts to ~1.25" diameter, .120 wall bar offered by speedway. In their range that's a pretty "middle of the road" bar so if you decide to go softer or harder, you may have some options thru them. I'm running the same size bar but with a bit more adjustment options on the arm length.
I ran my CRX at 500/700 and have to say that my Civic at 700/1000 is actually smoother over bumps... IMO, the higher rates pay dividends when you start hopping curbs as the suspension bottoms out less.
Both my CRX and Civic were/are drum cars. Are you locking them up under straight line braking at all? Or is the issue only apparent when one of the rears has been in the air? If it's the latter, I wouldn't worry about it... the small puff of smoke at touchdown shouldn't hurt anything at all. Its unusual to have rear drums adjusted tightly enough that you'd have premature rear lockup... this is b/c with them adjusted "out" too far, you'll have trouble getting the drum back over them. More often, I'd find that I needed to ratchet up a click or two on the parking brake to start pre-loading them as they got hot and wore as the race went on... what rear shoes are on the car? Stock type?