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

[DocWalt]

As I've posted before, there's a shop 15 minutes from my house with a shock dyno. We need fittings made before I'm even going to call them, I'm not wasting my time nor looking like a fool when I can't come through.

[2fnloud]

I know, who can make the fitting? Jeremy could you make the fitting?

[anyonebutme]

Depending on how your top hats are set....front motion ratio is .93 to .98. Rear is like 1.2. I haven't finished measuring the rear yet. On rear your spring will be less than front on 3s for 99% of people.

[J. Fast]

Depending on how your top hats are set....front motion ratio is .93 to .98. Rear is like 1.2. I haven't finished measuring the rear yet. On rear your spring will be less than front on 3s for 99% of people.

Will this change depending on wether or not we utilize camber plates? Where are you and Andrew @ GT Worx deriving that rear differential number from?

I'm getting conflicting info regarding setting this up and it's really frustrating.

[DocWalt]

How is the rear motion ratio greater than 1?

[J. Fast]

What I've coming my way... JRZ Triple Adjustable. I bought them from a guy on Evo M.

[J. Fast]

I know, who can make the fitting? Jeremy could you make the fitting?

Make adapters for the shock dyno? I'm guessing this requires upper and lower front and rear adapters? I suppose I could make A-frames. What size hole at the top and bottom for mounting, 1/2"?

I'm not free this coming up weekend but next weekend. I can make something.

[DocWalt]

1/2" should work. Need to keep some method of allowing the wires for ECS to be connected. duke_3k (IIRC that's his username) offered an ECS controller to put the shocks into the correct valving positions.

[Erron Spalsbury]

Bent frame? lol

Unfortunately I can’t add much to this subject right now but I'm very interested in the info.

Hahahaha, well, maybe... It's from my car. Taken a few second from this pic...



This is from a friend (Ray's camera Jer)..


Lifting the rear inside tire is very common. This really isn't even the best pic. I have one at home that was during hard braking and transitioning into turn in where the rear is a good 5" off the ground. This is with the 14/10 front/rear setup. (787lbs/ 564lbs)

That's not anywhere near enough. That's why I recently switched to 1300 up front and 1100 in the rear. We'll see how that works this year because I was giving away a bit by lifting the tire that much. I had Hal machine me up some adapters to fit a proper 2.5" Hypercoil.



To be perfectly honest, I wanted a higher rate than even the 1300's. A few of the faster guys are in the 2000's for spring rates on a similarly weighted car.

[anyonebutme]

How is the rear motion ratio greater than 1?

Spring is behind the hub while the pivot is in front of the hub....so spring travels a longer distance then the hub. The evo mounts the spring to the control arm iirc, meaning its possible it has a Mr less than 1.