never heard anything about only running higher pressures in the front
tires in my autocrossing days; seemed we got just as far up on the
sidewalls on the rear tires as we did on the fronts,...
the only caveat seemed to be with the FWD cars; they liked a little
more pressure in the front tires than the RWD cars of the same
weight,... (i raced both.)
cheers!
e
Chuck Landenberger wrote:
> Andrew,
>
> If you overinflate your tires, the center of the tread will wear more
> than the outer edges and you reduce the area of the "contact patch"
> of your tires with the road surface. Less "patch" = less control.
> Underinflation causes the outer edges to wear at a higher rate. It
> can cause, in a dramatic evasive action, the tire to roll off the rim.
>
> and John,
> As for inflation when autocrossing, the higher psi is to support the
> tire wall and keep the tread on the road surface when hard braking
> and turning is required. When autocrossing, the higher psi only
> pertains to the front tires, not the rears.
> I used to run 38/32psi when autocrossing my '80 300SD. Those were
> the days at GWS autocross events... It was amazing how "tossable"
> that 3800 pound car was! It might be considered an oxymoron, but I
> used to run BFG R1 race tires for autocross and track events.
>
> Take care and be safe,
>
> Chuck
>
> On Jul 31, 2008, at 8:42 AM, John Robbins wrote:
>
>
>> andrew strasfogel wrote:
>>
>>> What's the downside of OVERinflating tires to improve fuel economy?
>>>
>> I'm not sure of others, but hydroplaning resistance is one of
>> them. At
>> least according to the autocross school I went to... They said
>> 40psi for
>> the track, but don't run that on the street.
>>
>> John
>>
>>
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>
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