When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Roll centers will do some tricky things especially if they go underground. If your roll center is too car from the CG then you will have a very large roll moment. Therefore, even with what seem to be significant spring rates you still get large body roll.
That's what I thought. And I'm pretty sure mine are underground.
That tends to happen when significantly lowering a production car. Although, its not optimal to have it underground it is really bad if it is crossing the ground plane.