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Posted by: Joseph Mills Mar 22 2003, 10:29 PM

Last season I ran on some very old Yokohoma 008's which is an AX tire. The rubber had long ago lost it's suppleness, but they were still way stickier than street tires. These tires like a LOT of air.....45 to 55 lbs. As you add more air, the face, or tread of the tire stays flat, and the sidewalls just get stiffer and stiffer.

I have just fitted some Hoosier A3S03's (AX tire), on my car for this season and have been told that this model don't use a lot of air. I've been told that adding more air does not make the sidewalls stiffer (they're already stiff), but will just bubble out, or round out the tread face (thereby reducing your contact patch to the asphalt.

So for those of you autocrossing on Hoosiers, does the above sound correct? I thought I'd start out with 36 lbs. all around.

I'd be very interested in hearing what tire pressures some of you are running. Please specify if you're running the A3S05's.
Thanks.

Joseph
75 2.0L AX bound

Posted by: Brad Roberts Mar 25 2003, 09:50 PM

Joe,

Did you get this info offline ??


B

Posted by: Joseph Mills Mar 25 2003, 10:41 PM

Brad,
Nah. I posted at an awkward time (late Fri. nite), and it just got lost over the weekend (people too hungover to think about tire pressures).

Any insight appreciated!

Joseph
75 2.0L AX bound