I just had an autocross weekend where the course was 5 continuous laps
and I ran 31 lbs all the way around in my TR6. What I am trying to
determine through this question and the experience of FOT guys is
whether or not there is any application on the race track for the TR6
factory recommended 4 (or so) lbs less pressure in the front than the
back. I don't know what the factory pressure recommendations are for TR
3, 4, and 4A are but if they are similar to the TR6 (which is 4 lbs less
in the front than the rear), then my question extends to them too.
Also, I don't know if this type of engineering thinking is Triumph,
British, the era or what. Any thoughts?
Jim Hearn
Sacramento, CA
Two '74 TR6s
-----Original Message-----
From: BOB KRAMER [mailto:rkramer3@austin.rr.com]
Sent: Sunday, October 21, 2007 7:50 AM
To: jim hearn; fot@autox.team.net
Subject: Re: [Fot] Racing tire pressure
I'm still early in learning how best to set up my TR4A but I have found
that
30 front and 31.5 rear works OK with Hoosier Speedsters on my car. I
started
our 30 all across and gradually upped the rears. Without the lower front
pressures turn in was too light. I had the car weighed the last time out
and
I'm going to do some adjustments so my pressures may be meaningless to
someone else.
Bob Kramer
rkramer3@austin.rr.com
----- Original Message -----
From: "jim hearn" <jimhearn1@comcast.net>
To: <fot@autox.team.net>
Sent: Saturday, October 20, 2007 11:43 PM
Subject: [Fot] Racing tire pressure
> It seems like for most cars the tire pressure is best a little higher
on
> the
> front than the rear (i.e. 32 front and 28 rear) but factory
recommended
> air
> pressure for the TR6 is for the street 22 front and 26 rear and for
"high
> speed" it is 28 front and 32 rear. Does this (more pressure in the
rear
> than the front) prove out to be the most effective set up for the TR6
with
> race tires? Any feedback on this would be greatly appreciated.
>
> Jim Hearn
> Sacramento, CA
> Two '74 TR6s (one street and one track)
>
> [demime 1.01d removed an attachment of type application/ms-tnef which
had
> a name of winmail.dat]
> _______________________________________________
> http://www.team.net/donate.html
>
> rkramer3@austin.rr.com
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