Originally Posted by
PutAwayWet
This is a good post, Earl. I'm thinking this through: side link height is not about roll center, roll center is all at the center pivot...
It's an adjustment I've never bothered with, so I'll admit I hadn't really thought it through at any length, but what you're saying is contrary to what I've heard before.
I remember some Euro racer grinding and lowering side link balls on his 12R5, and the word was he was adjusting roll center. Misinformed? Throwing competitors off the scent? Or is there a more general confusion of roll center with rear steer? It does something, so let's call it roll center!
Hey Todd,
Yes, there are a lot of misconceptions surrounding rear roll centers of pan cars. I have heard that one as well, and it is not true. I have also heard raising the damper tubes adjusts roll center!!
The simple answer is, the rear roll center of a car with a center pivot ball is a physical point, the ball. No adjustment, other than moving the ball will change this. The sprung mass has no choice other than to roll about this point.