Some of you may geek out on this stuff too

[kilgojr]

So in searching for a proper calculator to determine spring length and rate I have been searching different sites. I finally decided to just look at the source of where I had planned to buy my springs from.

I haven't looked at other manufacturers, however, I am sure they all have one or something similar.

http://performance-suspension.eibach.com/cms/motorsports___suspension___sport___springs___performance___racing___baja___rally___score___f1___nascar___v8_supercars___btcc_suspension_worksheet

[nicktcr]

Nice. On a somewhat related note, here's a really easy to use spring rate converter that's handy when you know rates in one unit, and would like to know them in basically anything else.

The two common rates are the Standard unit of pound-force/inch (lb/in) and the common Metric unit of kilogram-force/millimeter (kgf/mm)

http://www.hraefn.net/projects/spring_rates.php