It does for bikes, but they don't mention it for cars. Maybe there is amiss
print? The 1999 rule book (page 15) says: "Up to 250 MPH - Shaved narrow
tread Super Speedway tires". Don't know that there is such a thing. Is it
possible that it should read: 'Shaved narrow tread OR Super Speedway tires'?
John Beckett, LSR #79
----- Original Message -----
From: "Jonathan Amo" <email@example.com>
To: "John Beckett" <firstname.lastname@example.org>
Sent: Thursday, January 27, 2000 3:04 AM
Subject: Re: concerning tires
> I also believe that tire shaving also makes your speed rating 1 higher for
> shaved tires.
> Jonathan Amo
> John Beckett wrote:
> > John
> > I believe the reason for shaving tires is to reduce the weight and
> > the effects that centrifugal force would have on the tire at high speed
> > (RPM).
> > And half tread should work just fine.
> > Rolling resistance is a whole other matter, but it can't be that much.
> > timeslips from Maxton and Bonneville would indicate that altitude, and
> > slipery salt, are bigger factors than rolling resistance.
> > John Beckett, LSR #79
> > ----- Original Message -----
> > From: "john robinson" <email@example.com>
> > To: <firstname.lastname@example.org>
> > Sent: Wednesday, January 26, 2000 9:09 AM
> > Subject: concerning tires
> > > Howdy,
> > > A few of questions and observations:
> > > I'm running "H" rated street radials on my H/CC at the Salt, they have
> > > aggressive tread design, and one of the safety techs said that I
> > > shave the tread for better speed. Somewhere I read that the
> > > friction of the Salt is on the order of cold wet asphalt, and my
> > > were (when I purchased the tires) that the aggressive tread would help
> > > traction. my speeds are 130-150, (150 hope full, anyway) Any thoughts
> > here?
> > > Also, I've been reading Forbes Aird 's book "Aerodynamics" published
> > > HPBooks1997, he has a very good section on tires and rolling
> > > the Salt, and it states in a passage relating to the Summers Brothers
> > > Goldenrod that the tires soaked up 61% of the total drag at the record
> > > speed, although the tire model used in the equation was based on 60
> > > old data... are there any newer equations available? anybody know how
> > > test rolling resistance? or where I can get the info to do a rolling
> > > resistance test?
> > > Another book I just picked up and although it is directed at and about
> > > solar vehicles built at various universities, is "The Leading Edge"
> > > Goro Tamai, published by Robert Bentley1999. This book is focused on
> > > speed aerodynamics and many of the concepts can be transferred to LSR.
> > > Although it does have advanced math in it, with the limited algebra I
> > > studied in high school, (well OK attended class and worried about
> > > girls and cars) I am able to follow most of it....probably because I
> > > the Aird book first, easily understood math in it.
> > > Two years or so ago, Motion Software (the Desktop Dyno people) were
> > > developing a game/engine test software about Bonneville. It seems to
> > > been in development, and then it died, anybody heard of it? got any
> > insight
> > > about why the program went away? they don't seem to answer their
> > > although they are still in business. I'd like to get my hands on it,
> > > to play with it.
> > > anybody got any other reading material they'd like to share?
> > > anyway, that's about it for now, drive careful
> > >
> > > John Robinson, Mechanician
> > > Mechanical Engineering University of Wisconsin
> > > 1513 University Ave.
> > > Madison, Wi. 53706
> > > 608-262-3606
> > > FAX 608-265-2316
> > > Current World Land Speed Record Holder
> > > Bonneville Salt Flats
> > > H/GCC 92 cu.in. 1980 Dodge Colt
> > > 131.333 MPH set 1995
> > > 136.666 MPH set 1996
> > >
> > >