Warning! Roll Centers & Front-End Lowering

[helowrench]

For your amusement.... years ago I used to scratch build my own RC cars, and it is quite possible to build a "car" with a very high roll center, even above the CG lines of the vehicle.

I had several setups that would literally bank through turns.
(They tended to "skate" at inopportune times, so I lowered it a bit, basically ~even with the CG F&R, banking/chassis contact is bad when you're 1/8" off the dirt/carpet and moving ~40 MPH, 6 cell 1/12th scale carpet car and a bizzaro RC10 based oval tracker)

It was kinda interesting, and worked quite well, as basically one had one spring across the car to support it, and a light sway bar or just damping to keep it level/transients.

Ray, when you come by I will show you my RC drawers, I have 3 RC12's (one is a still in the box, mostly built L) and a couple of Rustlers.

[kdf]

Have you guys seen the Milliken MX-1? A car built for the purpose to test roll centers and other suspension stuff. Milliken noticed from race tire data that at extreme camber angle the tires had a higher coefficient of friction. But when the car was ready the trend was already towards wider tires.
If I remember correctly, the old tires liked load, the more you loaded them, the higher the friction. Weight = superior handling