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Re: Tires

To: DANMAS@aol.com
Subject: Re: Tires
From: todd@nutria.nrlssc.navy.mil (Todd Mullins)
Date: Mon, 18 Aug 1997 09:24:53 -0500 (CDT)
DANMAS@aol.com writes:

> In a message dated 97-08-17 16:26:19 EDT, I (Todd) wrote:
> 
> > On a related note, I recently inflated each of my four tires to 36 psi,
> >  rather than the 32 front/37 rear I had been using.  Oddly enough, this
> >  setting seems to have increased oversteer a bit, which is not what I
> >  expected.  My suspension is completely stock, with the exception of GT
> >  springs in the rear.
> 
> Reduced traction at the front produces increased understeer, reduced traction
> at the rear produces increased oversteer. And conversely.

This much I already knew...

> If you draw a curve of grip vs tire pressure, you will find that the grip
> goes up fairly fast as you increase pressure, up to the peak value. The grip
> drops off fairly slowly as you increase pressure beyond the peak, or optimum,
> value. Evidently, you have not yet reached that peak at either end.

... but this part I didn't.  I had assumed that lower tire pressures
increased grip; don't ask me what twisted brain functions arrived at
this conclusion.

Anyway, I like the change!

-- 

Todd Mullins
Todd.Mullins@nrlssc.navy.mil    On the lovely Mississippi (USA) Coast

'74 MGB Tourer - even more fun than before

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