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Re: P205/70R15 tire psi

To: emanteno@comcast.net
Subject: Re: P205/70R15 tire psi
From: "Robert M. Lang" <lang@isis.mit.edu>
Date: Wed, 17 Aug 2005 15:13:47 -0400 (EDT)
Hi,

Add my vote to the "even pressure" all around. I run 30 psi front and rear
in my Yokohama A-509's. I ran a tad more (32 all around) on the Michelin
XGT 4's that I ran before the Yoko's. All my tires for the last 10+ years
have been either 215/70's of 215/65's.

At 30 or 32 psi, I didn't see any excessive wear in the middle of the
tread like you might see if you're tires are overinflated.

I agree with Irv that the lower front pressure is there to induce
understeer. The TR6 suspension, when it works right, is pretty well
"balanced". But note that like Irv, I have lowered my car and added higher
spring rates (as well as heavy sway bars).

The one item that is "iffy" on my street car is that with generous
application of the throttle, the rear will step out in WET conditions. But
under normal, safe driving manner, the car is completely neutral.

Regards,
rml
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