Join Date: Jan 2008
Location: Auckland, New Zealand
Re: cutting springs
Changing the springs and lowering the car does help the handling, but it does need to be done right, amd suitable for the intended use.
I have lowered my 33 for track use. as you go lower in the front, the negative camber increases, which is good up to a point. Too much means you will wear tyres faster, and not be effective.
When shortening a spring, when you cut the spring in length, you stiffen it. You need to think about the front / rear balance, and get the spring rates right. Also just cutting a spring usually leaves the cut end not fitting properly. The shocks should be shortened so the spring is held tight, otherwise the spring can fall out of its mount when you go over a big bump.
I have found it best to go to a spring maker who can shorten and re-shape a spring, then heat treat the spring to make sure it is all the proper length and shape for your car