CWerner

On my LS swap, what spring should I go with on the rear?

330 lb

Or

360 lb mono spring?

fishslayer143

depends, do you want stiffer ride and better handling in corners or do you want a softer ride?

gcusmano74

For a car with the standard suspension, a stock rate replacement rear spring is the Hyperco EZ Ride. ( Eckler's or Van Steel) The rate on that composite spring is 180 or 200 lb/in, depending on who you talk to.
For a car with the "gymkhana" or F41 or FE7 suspension, a 300 or 315 lb/in rate composite spring would be a direct replacement. (VB&P, et al.)
The higher rate spring will require a stiffer shock to control it. A lot of the guys seem to like the Bilstein Sports.
You pays yer money and you makes yer choice.

billcarson

this brought some interesting points to light.http://www.duntovmotors.com/tech-rear-leaf-springs.php

Tom73

Great link, thanks.

Tom...

cottoneg

Dick Guldstand told me to stick to steel. He mentioned the inter-leaf friction was a good thing.

7T1vette

300# or 315# spring with Bilstein Heavy-Duty shocks all-around, for very good general use. A higher load spring in the back will make for a very stiff ride, and possibly a rear end that rides too high, unless the stiffer spring is designed with less curve in it.

If you are a road racer....do what you need to do.

P.S. I have a 330# spring (came with the car when I bought it) and it rode about 2" too high. I just put Bilstein H-D's on it, which improved the handling immensely. However, it still rode high. After lowering the rear via longer T/A-to-spring bolts, I was AMAZED at the improvement of the handling in the car. By lowering the rear, it also un-loads the spring tension [apparently]. Doing so made the car steer in a more 'neutral' condition than before.

johnt365

This is so subjective. I thought I read that the 360# mono and 550# front coils was the closest equivalent to the Gymkhana FE7 option. I was worried about this set up being "harsh" or "rough" but that is not how I would describe it. I used Koni shocks and like the ride. The 550's dropped the front an inch and the VB&P style springs are very easy to install.

It is a more firm ride but that is what I wanted. I still have all my teeth.