Stock spring rates?

[Daeldalus]

What are the stock spring rates for these cars? I have searched all over and can't find even a single shred of info on spring rates.

Are the ls/lt/ltz rates different?

How much stiffer are the RS springs?

Any info on the GM performance spring rates?

 

[SuperS13]

LS/LT spring rates/height are the same (economy), LTZ spring rate is slightly stiffer and dampening is a tad higher but height is the same. RS/GMPP springs are much stiffer and have more dampening with RS/GMPP struts shocks and RS springs are .50" shorter in front and .25" shorter on the torsion beam axle. If your looking to not break the bank and want a sporty suspension feel on the road I'd suggest Zzperformance and get the full Sonic RS/GMPP suspension kit. It's worth it. I took a step further and run godspeed type s lowering springs on my GMPP/RS struts/shocks during summer and switch to my LT oe suspension during the winter. It nice to be able to swap suspension components. I went with the rs suspension upgrade because it's a step before going to coilovers... and you don't have to mess around with height or full suspension geometry adjustments.