[s-cars] summer tires

[Bruce Mendel]

FWIW, I found the victoracer r-dots to be MUCH better on the track (more 
progressive breakaway, better feel, longer life) than the ecsta r-dots, even 
though they are supposed to be very similar and cost about the same.

B
----- Original Message ----- 
From: "Taka Mizutani" <t44tqtro at gmail.com>
To: "LL - NY" <larrycleung at gmail.com>
Cc: <pkrasusky at ups.com>; <s-car-list at audifans.com>
Sent: Thursday, March 18, 2010 8:35 AM
Subject: Re: [s-cars] summer tires


> 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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>>
>>
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