Coilover Spring rates

[-=Jeff=-]

Originally Posted by Aurora40

Marc H suggested to me to use 425/300 springs for my car. My criteria was I wanted tour to be more like sport, sport more like perf, and perf to be a little on the rough side for the street. Currently I drive in perf all the time except short bits where I know there are rough patches. I'd like to drive in sport all the time.

I've never installed them though, so I don't know. Looking at the leafspring rates, 300 is less than the Z51 rear rates, and above the base rate. 425 front is more like the '92+ cars that had softened front spring rates (even the Z07/Z51 cars). I don't want softer fronts, so if I ever did install them I'd go much stiffer front like 5-600.

Did you have to relocate the sway bar to do the fronts?

yes I had to relocate the front bar. I when with 425 as Rippie suggests 400-450. I did not want too hard or too soft, to mee it feels like 425 is harder then my OEM 90 spring..

rear is still OEM and since I still have time I need to thin about the 275 vs 300 a little more.

For me with the leafs or the front coils I drive in sport mostly