Custom spring & 5100 adjustable strut combo (1.5-3.5 lift range)

[paroxysym]

the more i thought about this, the more im intrigued by your findings..

im trying to see what to match the OEM hemi coils up front with in the rear- when i throw them in the front with the 5100s adjusted to 2".

[Matt]

I've been racking my brain about how to decide how much i want to cut off.... I can always cut more off (or drop down a setting) but I'd prefer to get it right the first time

To cut out the variables with the stock springs, I'm taking a new approach and basing my "target height" from where I sit right now with OME HD springs/struts.

My front is currently 22" hub-to-fender with OME HD springs, OME struts and 1/4" strut spacers.

OME HD springs are 14.37" extended and have a rate of 630 lbf/in. I measured the spring at static ride height and its right at 11.25"; which means each strut has approximately 1965 lbf.

EDIT: I forgot to factor in the 2:1 lift ratio in my original post

Using that load, the following OME MD springs would produce less lift as shown:

OME MD uncut = 14.56" free height w/530 lbf/in rate = 10.85" @ equilibrium = .40" less = .80" lower
OME MD .5 cut = 13.74" free height w/560 lbf/in rate = 10.23" @ equilibrium = 1.02" less = 2.04" lower
OME MD .75 cut = 13.33" free height w/580 lbf/in rate = 9.94" @ equilibrium = 1.31" less = 2.62" lower

That's not taking into account the 1/2" lift i'll be losing from removing the strut spacer as well. Adding that I get:

OME MD uncut = 1.3" lower
OME MD .5 cut = 2.54" lower
OME MD .75 cut = 3.12" lower


Soooo, I think i've convinced myself that cutting one complete coil off is a bad idea to start with.

I feel like i'm missing something... gonna have to chew on this one a bit more or maybe just start with an un-cut spring and see where I end up.