[s-cars] summer tires

[Taka Mizutani]

No, it's not treadwear that's the issue with HPDE, Larry- it's the heat.
Running a heavy car with relatively small tires makes it really hard on the
tires. DOT-Rs last longer than street tires at the track because they don't
overheat as much, due to the lack of tread squirm and a more heat-tolerant
compound.

Taka

On Wed, Mar 17, 2010 at 7:05 PM, LL - NY <larrycleung at gmail.com> wrote:

> Bear in mind, those Ecsta V700 are DOT-R's, with "treadwear rating" (on
> DOT-R's, the treadwear rating is merely a joke that is part of the
> requirements of the "DOT" part of those tires) well under 100. Street tires
> of the selection you mentioned (RE-11, Dunlop DZ1SS, Nitto NT-05, Hankook
> Z222 RS3 to name a few) are of significantly longer lasting, somewhat harder
> compounds. DOT-R's are generally "disposable" after an HPDE event,
> particularly with someone as fast as Bruce behind the wheel. Hell, my
> DOT-R's on the comparatively lightweight, low horsepower Saabaru are done
> after 8 autocross events, and those type of events are nowhere near as tough
> on tires as a HPDE.
>
> On Wed, Mar 17, 2010 at 1:58 PM, Taka Mizutani <t44tqtro at gmail.com> wrote:
>
>> Phil-
>> Depending on how fast you are in the UrS, you'll end up killing street
>> tires
>> on the track- high weight and relatively small tires will just end up
>> overheated.
>>
>> I saw Bruce cord a set of Ecsta V700 on his UrS4 at LRP, which isn't a
>> particularly taxing track.
>>
>> Taka
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