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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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Fatter torsion bars create a higher "wheel-rate" ( think "spring rate"...but measured as forces acting on the wheel), so the thicker bars will help cornering AND braking/acceleration motions ( pitch and dive).
Common convention for other cars says adding fatter anti-roll bars doesn't affect ride, whereas adding fatter suspension springs does. Common convention for our 911's tells us the opposite.
Because the "spring" effect of either is based on diameter ( "D" to the fourth power, quite sensitive to diameter changes).... AND....also the length of the lever arm the operates on either of these types of springs ( anti-roll bar or torsion bar).....it is not a simple matter to say, "Im going from "X" to "y" and expect such-and-such change.....not that cut-n-dry.
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Wil Ferch
85 Carrera ( gone, but not forgotten )
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