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Re: Hoosier DOT race tires

To: TeamZ3@aol.com
Subject: Re: Hoosier DOT race tires
From: "Robert M. Pickrell Jr." <brnrubr@midusa.net>
Date: Mon, 07 Jun 1999 12:43:24 -0500
These sound like good reccomendations for as the author pointed out Camber
limited vehicles. For SP or more camber friendly behicles and suspensions: You
can have to much camber, not enought toe out and you can use much lower air
pressures. We run 35 front 31 rear on our ESP Camaro.

Rob

TeamZ3@aol.com wrote:

> Snapspinnr@aol.com writes:
>
> << I have used BFG products for the past two years and I am wondering how the
>  Hoosier tires compare. >>
>
> I've been working with Hoosier's on limited-camber vehicles for a couple
> years now.  I think Hoosier tires would work really well on an MR2T.  IMO
> tire wear issues are operator-error oriented, this applies to g-Forces too.
> I'm getting outstanding treadface wear with Hoosier AX compound on my Z3
> coupe.  Stock class Hoosier tire wear issues are a result of two things:
>
> 1) improper driving
> 2) improper setup
>
> Of course, combine #1 and #2 and you get massive wear quickly.  I won't
> really address how to drive, I'm still learning myself (I've got ABS, but
> who's fault is it if the tires lock up?).  However, setup problems with
> Hoosiers DOT radials are mainly a result of people refusing to think outside
> the box.  Hoosier DOT radials generally require *much* higher pressures than
> other tires.  The actual pressure will be dependent on car weight, tire size,
> camber available, etc.  Generally "the less camber, the more pressure" will
> be required to prevent rolling over onto the sidewall during cornering
> maneuvers.  This is critical.  I run 60 psig on my Z3 coupe.
>
> Extreme, too high, won't work?  At the Petersburg Pro practice starts I was
> launching at 6500 rpm without tire spin on 60 psig pressure (I still have to
> learn how to outdrive everyone to the finish though).  Shock settings are
> also critical for camber-limited stock vehicles.  Koni DA's come in handy
> here.  On any camber-limited vehicle wear will always occur more towards the
> outside tread area.  You have to monitor tire wear and swap the tires inside
> out to maximize life, usually good for double the life if you do it at the
> right time.
>
> Good luck and have fun,
>
> M Sipe


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