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Old 06-29-2007, 06:17 AM   #5
Perfectlap
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Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
you should find out what the spring rates are.

I haven't done much home work on the coil overs because I'm not planning this mod/upgrade any time soon but the PSS9 had the following specs.

PSS9 Spring (progressive) rates - 325# front , 345# rear
PSS9 Valve full soft (compression/rebound) - 1470/970 frt, 2650/1020 rr.
PSS9 Valve full firm (compression/rebound) - 2100/1330 frt, 3230/1370 rr.

If those inexpensive coilovers have too soft a spring the car will bottom out nasty.
I made this mistake once with a set of Tokico's and what a nightmare. Had to undo the whole thing after cracking some parts. The FM springs I replaced the car with had the perfect spring rate and although the actually sat lower it never bottomed out .
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