Martin,
What in the world are you doing running 40 psi in those GT6 tires?
The starting pressure should be somewhere around 26.
Try chalking the tires like autocrossers do to find the normal street
pressure for you specific tires. Rub little chalk marks on the tire
corners, where the tread meets the side wall. Go for a spirited (not
crazy) drive, getting the tires up to temperature. Go left, go right.
When you get home check the chalk marks. If the chalk is worn off the
side walls, you need a little more air. If the chalk marks are still
visible on the tread, you're overinflated. Rear pressures may be
different from front pressures, although side-to-side should be similar.
If necessary, adjust pressures and go for another drive. What the hell,
it's a beautiful time of the year here in D.C.
Charlie B.
> All right everyone, turn the flame throwers off for a moment, please ...
>
> I spoke today with my LBC mechanic about the tendancy of my GT6 steering
> to become *floaty* at higher speeds, and he suggested something simple --
> such as a tire pressure that is too high. He points out that the GT/Spit is
> engineered for a pressure of 20-25 lbs., and I am running with something more
> like 40-45 lbs. on a set of Dunlops. He also says that individual tire
>pressure
> recommendations are irrelevant to this lower pressure requirement for the car.
>
> Of course, I protested about tire wear, reduced MPG and all that stuff, but
> he maintains that the Spit/GT6 is so *nimble,* it requires a lower pressure,
>as
> Triumph indeed recommends. So there it is ... more fuel for the fire ...
>
> --
> Martin Secrest
> 73 GT6-3
> 74 Spitfire 1500
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