07-14-2009, 05:23 AM
I didn't think they were that low when I bought them (PSS9s are only like 250 fr / 500 rr). The JIC set-up that I bought was about as stiff as I wanted to go and still have a "streetable car".... However, that was a year-and-a-half ago, and my aspirations for the car have changed a bit. I don't have the budget this year for a new suspension, so maybe next year I'll move up to JRZ or Motons, but for now, I'll have to live with what I got.
For reference, here are the spring rates commonly used on 993s:
US factory M030 150-200 fr 225-275 rr
Eibach 7209 120 fr 200 rr
Weltmeister 180 fr 268 rr
H&R peformance 240-260 fr 280-310 rr
H&R coilovers 290-310 fr 350-370 rr
H&R supercup 310-350 fr 385-435 rr
BIlstein PSS-9 225-250 fr 400-685 rr
993 RS 246lb/in fr 457 lb/in rr
"Motorsport" 600 fr 800 rr"
GT2 competition version:
front yellow 270N/mm 27.5kg/mm 1542lb/in to 320N/mm 32.6kg/mm 1827lb/in
rear red 296N/mm 30.2kg/mm 1690lb/in to 350N/mm 35.7kg/mm 1999lb/in
For reference, here are the spring rates commonly used on 993s:
US factory M030 150-200 fr 225-275 rr
Eibach 7209 120 fr 200 rr
Weltmeister 180 fr 268 rr
H&R peformance 240-260 fr 280-310 rr
H&R coilovers 290-310 fr 350-370 rr
H&R supercup 310-350 fr 385-435 rr
BIlstein PSS-9 225-250 fr 400-685 rr
993 RS 246lb/in fr 457 lb/in rr
"Motorsport" 600 fr 800 rr"
GT2 competition version:
front yellow 270N/mm 27.5kg/mm 1542lb/in to 320N/mm 32.6kg/mm 1827lb/in
rear red 296N/mm 30.2kg/mm 1690lb/in to 350N/mm 35.7kg/mm 1999lb/in
Glen
2014 Cayman S
1999 Spec Boxster #270
2006 Cayenne S - grocery-getter and tow rig
2014 Cayman S
1999 Spec Boxster #270
2006 Cayenne S - grocery-getter and tow rig