4wd guys with coilovers

rynomx785 · 10-06-2009, 09:29 AM

Do any of you 4wd guys that are running coilovers know what spring rate you have?

Pops · 10-06-2009, 10:15 AM

600-lbs..... You need to get the shocks valved properly to accommodate them or you could be in for a fairly rough ride.

rynomx785 · 10-06-2009, 10:32 AM

Quote:

Originally Posted by Pops

600-lbs..... You need to get the shocks valved properly to accommodate them or you could be in for a fairly rough ride.

How much preload are you running on them Pops? They are PRG Spec'd so valving is correct. Pipho has 2.5" of preload on his coilovers just to make the truck sit level. He is considering a heavier spring rate just for some extra ride height without all the preload.

Pops · 10-06-2009, 10:47 AM

I don't have any preload on them.... My Rear Suspension is maxed out while keeping comfort so I had to crank the SAW's all the way down to be level. The front still sits about 1/4" -1/2" higher than the rear.

rynomx785 · 10-06-2009, 10:52 AM

Hmm he might have to run a spacer if he wants to be level with out preload.

pipho · 10-06-2009, 10:58 AM

With the top hat thing that bolts over the coil bucket on the extended travel package I cant do a spacer, Ill just call greg and talk spring rates with him.

Pops · 10-06-2009, 11:00 AM

I know the Bracket Lift SAW's have an option to have Greg modify the internal spacer for another 1" above the 2" allowable pre-load for 3" total. I assume that the OEM height or Extended SAW's have the same option available.

54warrior · 10-06-2009, 11:07 AM

Quote:

Originally Posted by Pops

I don't have any preload on them.... My Rear Suspension is maxed out while keeping comfort so I had to crank the SAW's all the way down to be level. The front still sits about 1/4" -1/2" higher than the rear.

Even with no preload on the shock, the bracket lift coils have about 2" of preload on them:

Quote:

Originally Posted by PrerunnerGreg

The proper way to measure "preload" is to extend the shock all the way (lift the tire off the ground) and measure the length of the spring in that position. The bracket lift coilovers use a 16" long spring and the non-bracket coilovers use a 14" spring. The BL units get more preload just to get the springs on the body. Typically you will have around 2" of preload...or 1400lbs of tension at droop. The spring actually compresses the same weather you have a lot or very little preload, the vehicle weight is what determines how far the spring will compress at ride height. The better ride comes from allowing the wheel to follow the road better with more droop or extension.

pipho · 10-06-2009, 11:36 AM

reached greg first try, going to run my coilover under the bucket and try it if not its on to a 700lbs spring.