spring rate formula

[Jimv]

I know theres a formula for coil springs, thats length, dia,thickness of coilwire X number of coils or something like that, Does anyone have the formula?
Thanks
JimV

[Baron Von Mike]

All you gotta do is type "spring rate formula" into Google.

http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

All about springs (http://www.roymech.co.uk/Useful_Tables/Cams_Springs/Springs.html)

[Winfab]

I saw this post on the run and haven't seen the formula lately, but there is a vaiable-constant (not contradictive here) in the formula I saw and used,depending on the type material used in the spring wire. I ran the formula through on a couple springs and then checked them in my spring rater and the results were very close....so I'd say it can work out fairly well.

[FencePost]

http://www.proshocks.com

I was just there last week looking for a spring rate.


Doug