Quote:
Originally Posted by jonboat15
I really appreciate these topics about the technical side of open wheel cars. Frank and Tim made interesting comments about the fifth shock helping to control the roll center of the chassis. I was wondering if the fifth shock would work similar to the QRP CL2 bird cage that had a small coil spring in it's assembly that was connected to part of the W link, I think it was created to help prevent a bind and keep a true arc in the roll center? Many sprint car sanctions banned this birdcage early last year and I was wondering if it's the same idea presented in a different way.
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As to the location of the roll center, that is determined solely by the geometry of the locating links, in this case by the geometry of the Jacob's ladder. The auxiliary shock functions to control/dampen roll
movement but has no influence on roll center location.
The reason that the spring linked ladder connection fell out of favor, as I understand it, was because of very erratic handling when the spring failed.