Roll center

I can appreciate that... Keep me posted, I'm curious to see how it comes out.

For sure, going to make a full scale model with some wood tomorrow just so Im not trying with something more permanent like my frame, haha. But I will post some pictures soon.

So I redid the mockup more accurately, and made a full sclae model of the front suspension... here are my findings.

4.5" Ride Height, 275/40/20

If I leave the control arms in current position
UCA Angle is 20*
LCA 10*
Swing arm length is 64"
Roll Center height is -5/8"
With 6* neg camber laid out

Now if I move it up 1 3/8" like I plan
UCA 11*
LCA 5*
Swing Arm Length 103"
Roll Center Height +1/2"
With 5* Neg camber laid out
...when laid out my Swing arm becomes 39.5" with no noticable change in the roll center height. How does that sound.

I like that a lot better. Another thing that excessive angle on the a-arms will cause in the corners is side scrub. That is cause when the track width is actually widening and narrowing as it runs through the travel.

So that should be enough, no reason to lift it up more. I'm trying to move the motor up as little as possible.

In a pure performance vehicle, you would design the suspension first, then worry about where everything else is going to fit, but on a street driven vehicle there are too many compromises that need to made to do that. I think that what you have will work well and will offer up plenty of performance (assuming that you use good shocks).

the bag and shocks are all set, I was more worried about the geometry, and I think what I have will work perfect, at such a low ride height especially and if I want to drive a little higher it wouldn't be an issue, I get very little camber change as height is increase, maybe 1-2* positive then it hits 0* again right around max lift

Man, I can really appreciate how much thought and time your putting into all this! I am a senior mechanical engineer at the University of Portland and your getting into some serious engineering! Great job!, I always like to see people puttin some true engineering into their rides up front rather than slapping it together and dealing with the problems later.

Yea, I already modified the stock frame 150hrs into it, it's perfect but I took it one step futher and started this full mandrel 2x4 chassis now.