ST's are by far the best spring on the market (that I have tested so far) for our cars because:
A) They offer a tasteful drop that looks GREAT without making you too low. They're still low enough however that if you don't take the speed bumps right, you'll drag any 3" or larger exhaust. The point= They're low, but not TOO low, and any lower can be a pain.
B) Unlike other springs on the market, they are linear rate- meaning that they do not increase is stiffness suddenly as they compress. They are firm from the start and have predictable response in turns and braking. They are only slightly firmer than stock and have NO bounce on healthy stock or aftermarket shocks. They offer a very smooth yet firm, and predictable handling.
C) Because they are linear and cold wound, they do not sag. (Lower more over time until they must be replaced). H&R's and Eibach's both have probems with sagging over time.
D) H&R's are too low. Eibachs are too soft, bouncy and provide poor control during spirited cornering.
Pic of my old 90T w/ ST springs:
^^^ It's a little lower than it looks. Use the fender gap with 91 5-spokes and stock tire size as reference. It handled VERY well with those springs.
I just ordered a set of Intrax springs for my 91T because they were dirty cheap, and I ws curious. They are could wound progressive rate springs (soft at full hight for smooth ride, but stiffen as they compress). Compared to the Eibachs 343-628lb/126-257lb F/R spring rates, the Intrax are 700lb/220 spring rate with a 1.6/1.3 drop F/R, slightly lower and stiffer than the Eibachs. I'm setting my car up for track use but still comfortable enough to drive to work, so my standards for suspension may be a little more strict. I'll let you guys know what I think of these springs after I've tried them. So far, if you want a spring, get ST's. The only thing better is a full coil-over. Stock Twin-Turbo R springs are nice too.
Collin
. So take this with a grain of salt.
