Is our suspension setup correctly by aftermarket strut MFR's? Is the bias correct?

[2fnloud]

Jeremy thank you for finding and sharing this info....I think I can FINALLY order mt G/C sleeves for my ECS struts.

[Erron Spalsbury]

Are we having fun yet? Lots of good stuff in here and here's a whole lot more for ya'll to chew on...

http://www.optimumg.com/docs/Springs...Tech_Tip_1.pdf
http://www.optimumg.com/docs/Springs...Tech_Tip_2.pdf
http://www.optimumg.com/docs/Springs...Tech_Tip_3.pdf
http://www.optimumg.com/docs/Springs...Tech_Tip_4.pdf
http://www.optimumg.com/docs/Springs...Tech_Tip_5.pdf
http://www.optimumg.com/docs/Springs...Tech_Tip_6.pdf

[anyonebutme]

Consider me surprised as hell. For reference, BMW E36 rear suspension, nearly identical in configuration to ours, when in coilover is known to have a 1:1.07 MR going off memory:

http://i1323.photobucket.com/albums/...ps70c51a6c.jpg

My car was twitchy and unstable as hell on 9K/7K split.......I'm just imagining 9K/9K oversteer.

[anyonebutme]

I just measured my car, all stock suspension arms, AWS deleted and links in "neutral" position, forward cam bolts in most forward position. 0 toe. stockish ride height. I got a motion ratio over 1.

Reference measurement - Damper length

16 - 23.375
15 - 22.0625
14 - 20.9375
13 - 19.8125
12 - 18.75


It's completely possible I'm tripping, so Jeremy, can you recheck your car? I got a stable spot at 1.125 MR (not squared) right in compression of my ride height.

[edit]: measured with both springs disconnected to avoid chassis warp possibly modifying results.

[J. Fast]

What is the perch gap at resting ride height? What us the gap at 1" below resting ride height. What is the gap at 1" above resting ride height?

[J. Fast]

I need the number when the tire moves 1"... Not the perch.

[anyonebutme]

10.375, 8.125

Comes out same.

[edit]: those are perch to perch, 1" below and 1" above ride height

[J. Fast]

10.375, 8.125

Comes out same.

[edit]: those are perch to perch, 1" below and 1" above ride height

1.26 motion ratio... Hrmmm. Danger Will Robins! LOL... I will check again... This is wierd.

[anyonebutme]

dangerously close to my initial measurements of my spare subframe....


Plugging in stock spring rates....

[anyonebutme]

quick rough plugging of the numbers means .98 and 1.26 motion ratios makes sense with stock spring rates and corner weights, at least to me.