boostindoo said:
hey suprabad, if i cut @ 1coil, how much do u think it will be lowered?
It will vary a little depending on the spring (which is why I said to start off with 1/2 coil cut. But the general rule of thumb is:
1.5 to 1, in other words, if you cut off 1" of spring it will lower the car by approximately 1.5". I have found this to be pretty accurate but again, it will vary a little depending on the stiffness of the spring to be cut and the load sitting on the spring.
The best way to approach this is to decide how much drop you want, measure the spring (off the shock and unladen) and then cut the spring based on the height ratio I gave you, and not the coil count.
Another thing you must keep in mind is that you must grind the end of the coil flat (so it sits flat in it's pearch) so figure that in to your total cut.
Also, do not use a torch to cut the spring, the heat will change the spring rate. The best way I have found is to use a metal bucket filled with cold water and slip the spring in so that the part you want to cut off is outside the bucket and hooked over the edge and cut the spring with an angle grinder .
The bucket will do two things, hold the spring while you cut it, and keep the rest of the spring cool, so you don't heat it up and f up the spring rate.
It's really a pretty simple job, just don't go overboard and you'll be fine.