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Re: Tires: bias vs. radial

To: vintage-race@autox.team.net
Subject: Re: Tires: bias vs. radial
From: Derek Palmer <derekp@Synopsys.COM>
Date: Tue, 02 Mar 1999 17:14:24 -0800
I put some Hoosiers(bias) on my spec racer one to run a 6 hour enduro.
I usually run Yokohama's and boy what a difference.  Those Hoosiers will
send you a telegram and wait for a reply before doing anything surprising.
I run the RSR pretty stiff with Radials and the line between fast and 
spinning is mighty fine.  They're fast as hell, but took a long time to
learn where the limit was.

JMO,

Derek Palmer
San Jose, CA

At 07:02 PM 3/2/99 -0500, Calvin Krug wrote:
>>I've got a '58 A-H 948cc sprite racer I bought 8/98 with a bad set of
>>Hoosier 170/50/13 bias tires on it (car is an old Midwest Council car that
>>hasn't been raced in years). In 9/98 @ Elkhart Lake Vintage Festival I saw
>>alot of cars on bias tires, but also noticed a number of smaller production
>>racers with radials.
>>
>>My question is: should I stick with similar sized bias tires or can
>>street/shaved radials be used effectively? '99 will be my rookie season in
>>vintage racing so getting a good footprint on the track from day one is as
>>important to me as upgrading the brake system, among other things.
>>
>>Thanks, Greg
>>
>>VSCDA, Grp. 2E, #517
>
>
>>From what I've read on here, bias-plys will be more forgiving near the
>limit of adhesion, so as a rookie, they might be a good idea.  I've also
>been told that the non-radial Hoosiers are lighter weight.  If that's true,
>it would also be a benefit.  So, what's the great thing about radials???
>
>Calvin Krug
>
>
>
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Derek Palmer                    Channel Development Manager FPGA Products
Synopsys, Inc.          Phone: (650) 943-5203
700 E. Middlefield Road Fax:   (650) 694-1747
Mountain View, CA 94043 Email: derekp@synopsys.com
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