What suspension w/ DSE Sub frame?

[Matt@BOS]

I've driven about 30k miles on the street, autocross and track with a full DSE setup and double adjustable JRi shocks under my car with an LS. It weighs about 3500lbs and I've always run between 600-750lb front and 400-500lb rear springs.

With a good set of double adjustable JRis valved by JJ, those spring rates are right in line with what most people with DSE suspension and JRis by JJ are using to autocross these days. 800lb/in is a little bit heavier than normal, but we're also talking about a car with an SBC, and if the shop that spec'd that rate has plenty of experience, I see no reason to go with anything other than their experience.

I can also tell you from my personal experience that the recommended spring and shock combo isn't overly harsh or un-compliant feeling. The front end should ride really, really nicely with the rebound backed out a bit.

Matt