RT
If I am correct in your statement that you inspected the long course / big
end I assume you mean the 5 mile and beyond. The black marks are most likely
the tire marks from cars returning from the far end on record return runs.
There are two starting lines at that end as well and the extreme far end the
salt was a little softer. I too examined the courses after the two events
and found this to be the conditions. The speed week course we ran one
direction only and I didn't see much in the way of tire marks at the far end
except for spins, and a few long almost spins.
Glen
----- Original Message -----
From: "rtmack" <RTMACK@pop3.concentric.net>
To: "Dave Dahlgren" <ddahlgren@snet.net>
Cc: "Marge and/or Dave Thomssen" <mdthom@radiks.net>; "Land-speed Racers"
<land-speed@autox.team.net>
Sent: Saturday, December 15, 2001 10:13 AM
Subject: Re: Fw: Mickey Thompson
> Dave D./ Dave T.:
> I haven't been over 400 on the salt-- or even over 200. I think the
over-400 guys
> spend all their time on their cars, and don't have much left for
"bench-racing" with
> us on this list.
>
> I was on the salt for two of the meets this summer, however. And I spent
as much
> time as I could studying the cars, the salt, and the reaction of one to
the other.
>
> I was told that the salt was exceptionally good this year. My initial
observation
> was that it seemed pretty firm and dry, with just a light sprinkle of
"sugar" on the
> surface. And I also saw the tire "burnout" marks in several places, as
Dave D.
> mentioned.
>
> But at 130mph I could feel the tires of my own car spinning.
>
> When I inspected a part of the "long course"/"big-end" after speed week, I
found
> evidence everywhere of drive-tire slippage. One place looked like the
exit from a
> turn on a clay "circle-track" (except that it was white, of course). And
some of
> the tracks were over an inch deep-- still with indication of wheelspin.
What that
> said to me is that even with big downforce (whether aero, or ballast)--
some of the
> cars can't get enough traction to reach their speed potential. I assumed
these were
> the cars with the most horsepower per axle-- and some were those potential
absolute
> wheel-driven record cars that you are referring to.
>
> To me, the email you mentioned from T. Burkland seems to support this
theory.
>
> So-- even though Dave Thomssen's response was rather casual, I still tend
to believe
> that he has identified one of the most important barriers (if not the most
> important) to big increases in the absolute wheel-driven record.
>
> Russ Mack
>
>
>
> Dave Dahlgren wrote:
>
> > So much for intelligent conversation !!!!!!!!!!
> > You told me to think about it . Did you??
> >
> > Ask a question in all seriousness ... well you know the rest... maybe
some one
> > that does know the answer or have something to say that is helpful or
thoughtful
> > will reply..
> >
> > BTW.. have seen little sanding water lately and the salt is so hard you
can
> > leave rubber on it so an interesting thought you had but it makes no
sense at
> > all...
> >
> > Lets go for something serious..
> > How many of you guys out there can piss up a wall over your head?
> >
> > Dave Dahlgren
> >
> > Marge and/or Dave Thomssen wrote:
> > >
> > > Think about it: We race on a hard surface covered with mush and
standing
> > > water.
> > > Dave the Hayseed
> > >
> > > ----- Original Message -----
> > > From: "Dave Dahlgren" <ddahlgren@snet.net>
> > > To: "Malcolm Pittwood" <MPittwood@compuserve.com>
> > > Cc: "LSR List" <land-speed@autox.team.net>
> > > Sent: Saturday, December 15, 2001 6:30 AM
> > > Subject: Re: Mickey Thompson
> > >
> > > > I don't mean to belittle going 400+ mph in any way, but something
has
> > > occurred
> > > > to me over the years. The progress in the unlimited cars has been
very
> > > slow.
> > > > Does anyone have some insight why this is? It seems like cars were
going
> > > 400+ in
> > > > '47 and to date the best improvement has been this year at just
under 460
> > > and
> > > > the piston record is only about 6 mph better than '47.. Is it lack
of
> > > entries,
> > > > lack of technology, or have we reached the limit of adhesion to go
much
> > > faster?
> > > > Certainly we have the power available. Does anyone know what the
speeds
> > > were on
> > > > Vesco's 458 run on a by mile basis as well as the others that have
run in
> > > this
> > > > range. It might be interesting to plot the acceleration rates for
each
> > > mile and
> > > > see if there is something in common with all of them.. I am starting
to
> > > think it
> > > > all comes down to where the rubber meets the salt as when I last got
an
> > > e-mail
> > > > from Tom Burkland he mentioned running 450 at 53% throttle so it is
not
> > > about
> > > > power available in my mind it might be about 'sticktion' though. May
be we
> > > > sometimes have to just close the hood and see what is the real
problem....
> > > >
> > > > I would love to hear from those that have run in the 400 and over
range
> > > what
> > > > they think is the next big hurdle to going faster if they would like
to
> > > share
> > > > their thoughts with the rest of us...
> > > > Dave Dahlgren
> > > >
> > > > Malcolm Pittwood wrote:
> > > > >
> > > > > Whilst correcting an error from the family press release (which is
also
> > > > > published in many magazines and books), I would not want this list
to
> > > think
> > > > > that I would wish to take away anything from MT's achievements in
motor
> > > > > sport - be it on the salt, drag strip or dirt.
> > > > > I guess that this hot rodder and his Challenger 1 car did more to
affect
> > > > > Donald Campbells speed record activities in the early '60's than
anyone
> > > > > else.
> > > > > Its just a shame that one way speeds become described as 'one way
> > > records'
> > > > > over time.
> > > > > 406 mph if backed up would have affected every wheel driven team
until
> > > the
> > > > > Vesco's and Burkland's got motoring.
> > > > > Malcolm Pittwood, Derby, England.
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