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Originally Posted by Dean
I knew there was something else...
in general, as you increase the stiffness of the springs, you want to decrease bump damping, and increase rebound damping.
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I don't necessarily agree with this methodology...
1st - That's directly the opposite of what many racing damper mfg's are designing for these days. While I don't believe in doing things just because other people do it, it's something to consider since they have lots of R&D resources at their disposal and know some things we don't.
2nd - If you need to add damping force there are some theoretical benefits to adding bump as opposed to rebound, such as reducing the tendency to lift up an inside wheel during sharp, quick transitions. If you reduce bump resistance too much you also start increasing the likelyhood of bottoming over heavy bumps & dips.
3rd - Most of this conversation is irrelevant without knowing the baseline force/velocity characteristics of what you're starting out with, and a thorough understanding of the car's behavior at the grip limits over bumps & dips.
