Zac88GT wrote:
First you should use SolidWorks to verify your spreadsheet calculation of the motion ratio. Move the wheel up an inch in the assembly and see how much the spring compresses. I can see right away that your suspension spring rate formula is wrong. The wheel rate should be spring rate/(motion ratio^2).
As for the geometry of the bellcrank, it looks like the pushrod side is gaining advantage with compression and the coilover side is loosing it. Try lifting both connection points to make the rocker arm look more triangular. You want that 68* at the coilover side to be increasing as the suspension is compressed and the 74* at the pushrod side to be decreasing (or at least increasing at a lower rate).
Awesome. Thanks for the help. I should be able to figure it out now. It was too long of a christmas weekend and I couldn't think straight, too much eggnog probably haha.
I'll see if tonight or tomorrow I can get a better design made up.