Springs are cheap though. About $50 each for good ones. I would guess the off the shelf KWs could handle up to 500 in/lbs.
Tri-State Sports Car Council/Chicago Region SCCA/Milwaukee Region SCCA
Do better every run.
2002 ZX3 (daily)
1990 CRX Si STS (project)
2007 Pontiac Solstice Club Sport ZOK (autox)