Spring rates for coilovers???

[cjncustoms]

I am starting to gather parts for my overhaul on the jeep. i am doing coilovers in the front. I have a full bodied cj7 with a tbi 350 in it. Does anybody know what spring rates would be good for me to run? I want to run dual rate kit.... Thanks ahead of time!!

 

[RockMonkey]

It's almost impossible to calculate and get right. It depends on the weight of your vehicle, the desired ride height, the compound shock angle (front to rear and side to side), etc. There are some calculators on Sway-A-Way's web site, but there's almost zero chance of getting it right the first time. Use the calculators to take a guess, but you'll probably end up swapping springs. There are tons of used springs available on pirate for this exact reason. Good luck.

 

[hoxviii]

If you're really into trigonometry and static physics and can take really accurate measurements (weight, angles, and distances) you could figure it out, but as said there are A LOT of variables.

Hell, half the fun is trying to get it "right".

Justin

 

[waynehartwig]

The best thing to do is go to a scale and weigh the front half and then weigh the rear half. Now you know how much either weighs. Divide that by 2 and that is at each corner.

Now figure out how much up/down travel you want on the shock.

Spring rates are calculated by lbs per in. So if you have a 300 lb spring, it's goign to take 300#'s to compress the spring 1"

Do all of this and then order up some springs and you'll at least be closer than if you did nothing and just guessed.