>I find that with different tires the effect of over (and under) inflatation
>on driving feel and wind deflection varies.
>
>On the '82 Diesel here in Canada I have a set of 195R14 "Roadstone"
>tires (was recommended by a local tire place. Not bad for the price).
>With these tires driving feel desn't change much with more pressure
>in the front (up to 50psi).
>
>On the '85 gas I have in Germany however, 50psi in the fronts made it
>outright dangerous to drive. I cannot recall what tire is no it (It is
>6000km away now...) but it is some common aftermarket 185R14 tire with
>high load rating.

If those were CAR tires, they were grossly-overinflated. Don't
inflate past the max pressure molded into the sidewalls. A car tire
designed for a heavy car doesn't NEED 50PSI to do the job on a van...
32 to 35 should do just fine. 50PSI probably was distorting the
tread, making it convex and reducing the contact-patch to a small
circle near the center of the tread... bad for traction, tire life
(wears out the tread center rapidly) and risks tread separation.

The 205/14 car tires which came with chromed Mangels steel wheels
(rusty throwaways now)  my Caravelle are fine for cornering and
stability.
--
Regards
Andrew