Originally Posted by race911

Some of the guys are left over from the torsion bar era. Not many, but some. Even if not, you've got guys like PCA Tech Chair Peter Smith who has one of the bad-*** GT2 (club race designation, not Porsche model) running these days. Think 1:31-:32 at Laguna, when the 997 Cups are barely under 1:30. And it started life as a '70s chassis.

More to the point, if I was entrusted to set ride height/align track 911s that were running on Time Trial lap records back when I was still in my teens, it can't be exactly brain surgery..............