blykins,
Years ago I was looking for similar information. Check out this manufacturer's site for a wealth of information. They make Aldan Shocks and coilovers, among other things. I suggest this site for information only, and am not steering you toward their product line.
www.magnumforceracing.com
click on Aldan Eagle Coil Overs for some information.
Go back to the prior page and click on Coil Over Shock Springs for additional information.
David