Quote:
Originally Posted by Wepeel
Yeah, that 2-2.5Hz thing with the rear being about 10% higher in frequency than the front (recommended for low downforce cars)... well there are a lot of successful autocross setups that reach well into the 3+ Hz range (and downforce isn't much of a factor at autocross speeds).
There's that old Chapman quote, something along the lines of "any car suspension will work if you don't let it"...
OptimumG and anything written by Mark Ortiz is some great reading.
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I've read somewhere that some British rules require the suspension to move, because people would just lock it down and rely on the tires.
I've never seen 2-2.5Hz described as magic, just as the recommended start for low downforce cars on certain quality surfaces. As much as people adjust damping for smooth/rough tracks, it should be the base frequency that is adjusted first. But budgets...
The other problem seems to be the continuous evolution of tires, which seems to exceed the dissemination of general tuning knowledge. I noticed that Hoosier supplies a good deal of information on theirs, such as their effective spring rate at 'x' psi.
And the full coefficient of friction curves for load, temp, camber, etc... would be helpful to more grassroots tuners, but seem to be rather guarded information.