sr20speed

Thanks to a few brilliant members of our community, we now have some pretty straight forward fixes for the front geometry on the B-chassis cars. However, in regards to the B14 and B15, fixing the front geometry is only part of the picture. It is known that the stock setup results in a higher then ideal roll center, which is part of the reason these cars have such relentless understeer. So I'm looking into options for adjusting the roll center on the rear suspension on my B14 time attack project.

From what I've dug up, I know that the stock scott-russell linkage configuration causes a higher then ideal roll center, but before I do anything, I'd like to know the proper method of determining the roll center of the stock configuration, so I can know exactly where I'm starting from. Furthermore, does anyone know how to determine the roll center with a scott-russell linkage in general? Any insight here is greatly appreciated.

Side note: I'm already aware and know that a few have gone the panhard rod route, and that is certainly a usable option. However, I'd like to leave the panhard rod as a last resort. Right now, my goal is to create a revised, adjustable scott-russell linkage. Anyways, like I said any info anyone has on the matter is appreciated.

Thanks