Fortune Auto 510

Originally Posted by ConekillerZ34

Inducing too much understeer isn't too easy to do. I run 1000lb/800lb (not exactly 18k/14k but close), and I have Hotchkis front and rear. I run my rear bar on the softest setting and the rear shocks cranked pretty far down (autocross setup). Even then there is plenty of room for oversteer left.

FWIW, I had Fortune Auto 510s on my last Z, and was quite satisfied for the price. The current owner just sent the dampers in for their first service, 5 years in, at a cost of $300.
On that car I ran only about 60% of the spring rates that I do now, but FA should be able to set it up however you like.

Originally Posted by justin_boy

ah gotcha, thank you for that info. I misunderstood that going too stiff in the front can cause understeer.

still in between bc's and fortune autos

Originally Posted by ConekillerZ34

Technically speaking, too stiff in the front relative to the rear does induce undertsteer. My point is just that these cars rotate pretty happily, so that shouldn't be a major concern when deciding between differences in springrates, as long as you're in a reasonable range. 16k/18k fronts would need a really really low rear number to be problematic in that sense beyond what you can just fix with shock adjustments, and you can always change spring rates later.