Quote:
Originally Posted by southernstar
I am not saying that torsional rigidty makes a car faster in and of itself
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Understood, I was just trying to explain why a "50% stiffer" chassis may not translate to better track performance. Overall chassis stiffness is not only about maintaining pickup point locations, but more about roll stiffness distribution. We tune a cars understeer/OS balance by changing the F/R roll stiffness via roll centers, springs, and bars. If the front and rear suspensions are connected by a wet noodle, it won't matter how stiff a swaybar or spring you put on one end, it won't translate to the desired change in balance. The required chassis stiffness is directly related to the difference between the front and rear roll stiffness. A stiff chassis is also much more responsive to suspension tuning.
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