Neil,
Way back in the 60's when I was crew chief on a super modified on a 1/2 mile
dirt, if the track was still sloppy for qualifying and the trophy Dash, we
would put on a set of Firestone 900 x 15 mud and snow tires. We won some
trophy dashes that way but I don't think we ever tried them on a tacky or
dry track. I guess we just never thought about it or were afraid to throw a
race away to find out.
Howard Nafzger
----- Original Message -----
From: "Albaugh, Neil" <albaugh_neil@ti.com>
To: "'Glen Barrett'" <speedtimer@charter.net>; "Dan Warner"
<dwarner@electrorent.com>; "land speed" <land-speed@autox.team.net>
Sent: Friday, September 13, 2002 3:23 PM
Subject: RE: GT40 spinner
> Glen;
>
> You've brought up a good point-- perhaps it is a loose salt (dust) layer
on
> top of the hard salt that is the problem instead of water. If this is the
> case, the higher unit loading (pounds per square inch of tire contact area
> on the surface) of a narrow tire could possibly get a better "grip" on the
> solid underlying layer of salt than a wider one one that only skated
across
> the loose surface.
>
> You may have something there. I recall that in the early days of the
Pikes'
> Peak hillclimb, cars using narrower tires seemed to get a better grip in
the
> loose gravel surface. I guess they simply dug themselves a groove in the
> gravel rather than slide sideways across the top. Maybe something similar
is
> happening on the salt?
>
> If something won't work, it won't work. I would like to understand why,
> though. As the old saying goes "If theory and observation do not agree,
> double check your observations-- and if they are correct, come up with a
new
> theory."
>
> Are there any dirt- track guys out there who would care to comment?
>
> Regards, Neil Tucson, AZ
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