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Posted by Daze
on April 21, 2009, 9:02 pm, in reply to "Critique my spring cutting thoughts"
69.145.220.22
I am all about the numbers I love a good mathematical approach but springs don't always seem to follow the rules. not that a spring and spring rate cant be mathematically quantified, I know it can. The issue is quantifying it correctly and accounting for all the variables including front end weight, suspension geometry, spring material, # of coils and those are just the ones I can think of off the top of my head 
With that said I prefer a more systematic approach. I have not done anything with the front coils on my Galaxie, but I have done tones with Mustang front coils and here is what I have learned.
Give the springs time to settle, if you just installed them give them at least a month before cutting them.
cut a little and re-install. I have found the best way to get the desired ride height is to cut 1/4 coil off re-install the springs and give it a month. if it is not enough, cut anther 1/4 coil
spring rates change as you cut them. The more you cut the stiffer the spring will get so 1/4" coil may drop the car 1" the first time and only 3/4" the second time. (totally made up #s to illustrate my point )
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