Charlie,
Since you mention the old Boeing lot at Kent, WA, I'll comment on the
Bremerton, WA lot. The area where we ran the Tour is currently named
"Bremerton Raceway". The previously used airport runway and taxi strips have
been converted to a drag strip. There are several types of asphalt surface
material on the various areas. Since the very flat surfaces are on a slight
incline, you get a really different course running in the oposite direction
on the second day. All those "loose" first day downhill turns become "tight"
uphill turns the next day and visa-versa. The surface was not particularly
slippery, probably because it was quite warm (80-85 at mid-day) when we ran
but, the tire wear was the best we've measured on the three sets each of
Kumhos and Hoosiers we've run on the GS.
The Hoosier/Bremerton wear rate was 68 seconds of run time for each .001" of
tread wear. The Hoosiers, generally, have worn at a greater rate than the
Kumhos on same surfaces but the next best average wear rate, from four
events, on both Kumhos and Hoosiers has been on the McClellan asphalt lot
where our measured wear rate is 40 secs/.001". Our most extreem wear,
fortunately all on Kumhos, has been 16 at Atwater and 17 on McClellan
cement.
BTW, by extrapolating the 68, to estimate the life of a set of Hoosiers, we
would get a total of 180 50 second runs from a set. Anyone want to move to
the northwest? OK, OK, I know the answer. Even the locals up there were
oh-so-happy to ONLY have rain (a little bit) on Friday, during practice.
This last comment is really subjective, since I haven't run on the Kent lot
since '89, but I'm sure the locals are completely accurate when they say the
Bremerton surface is far superior to the old Kent lot.
Don
----------
>From: Smokerbros@aol.com
>To: kkelly@spss.com, lollipop@ricochet.net, donbarbmckenna@earthlink.net
>Cc: ba-autox@autox.team.net
>Subject: GGF & Tires (was: Inner QuandAries)
>Date: Wed, Aug 16, 2000, 12:06 PM
>
>In a message dated 8/16/2000 10:24:35 AM Pacific Daylight Time,
>kkelly@spss.com writes:
>
><< when I ran Lucy in the third group, I FELT like I
> was on street tires, and crappy ones at that. This was the first time I
> thought maybe my Miata had too much horsepower. When I drove Peter's car
> (thank you Peter!), this most amazing BMW Z3 Coupe in fun runs that
> afternoon, I felt much more connected to the ground. At this point, I really
> have no idea why this is, because normally, there is such a gap between the
> R tires and the street tires >>
>
>I think the GGF lot likes tires with lots of tread and/or soft tires, so that
>the tread blocks have a better ability to sort of drape themselves over the
>surface irregularities, and consequently have more contact with the ground.
>The Boeing lot at Kent was known for favoring full tread Kumhos, and seems
>like a very similar surface to me.
>It would be interesting to know what the top 10 PAX people were on. I can
>speak for #5 (2nd place in DSP in Don Lew's Supra), we were on Kumho V700s,
>with a lot of tread (not sure exactly how many events on the tires... Don?)
>
>CHD
>
>CHD
>
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