The springs in our cars do not twist at all under compression. A spring that is rated at 300# will be 300# no matter how much you cut our of it, and will compress 1 inch for every 300 pounds that is added to it. The formula is y=kx, where k is the spring constant. So if you cut a coil out of your springs, it is still going to have the same spring constant, it will still COMPRESS the same amount, you will just bottom out at a lighter FORCE. NO TWISTING
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Sigh. Ok, you sucked me in (musta been the capital letters). The problem with your formula is that k, the "spring constant" is only constant for a particular spring. It is not constant if you cut coils out. The equation for a coil spring is:
k = [1,500,000 X d(to the fourth power)] divided by [n X D(cubed)]
d is the diameter of the spring wire, n is the number of coils, D is the diameter of the coils. Decrease n and k goes up accordingly.
This web site spells it all out:
http://www.teammatrix.com.my/CarMods/potongspring.html
This web site has the formula and is also a spring constant calculator.
http://www.kaila.net/tl125/spring.html
And the spring wire does twist :D .2000 Firebird convert, chameleon/tan, M5, Y87, TCS, BMR tower brace and panhard, KBDD sfcs, 245/50-16 GSCs
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