[Vwdiesel] tire pressure
jhsg at sasktel.net
Fri Apr 14 23:06:13 EDT 2006
> I did a tread wear test at varying tire pressures on a set of tires once:
> I noticed almost no change in the wear rates running the (44 PSI max) tires at both 32 and
> 44 psi. When I finally bumped up the pressure to 44, the handling of the tires was
> greatly improved. At 32 psi, they squealed and slid around even slow turns, at 44 they
> cornered so much better.
Very good article Roger.
Most passenger car tires have very thin, very flexible sidewalls, that
allow for a nicer ride, but allow too much tire roll in a turn, and you
wind up with maybe half the tread putting any weight on the road, and
reducing available traction substantially. Higher inflation pressures
reduce sidewall roll, such as you found. We do goofy camber adjustments
to overcome this on the race car.
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