Kaiser Frazer Owners Club Forum
General Category => General Discussion => Topic started by: Cortes121 on April 22, 2011, 06:08:48 PM
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I was wondering with 205/70 R15 radial tires what I should inflate them to. I know the manual has a reccomended tire pressure but that is for Bias Plys. Should I just fill each tire to its max capacity?
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Start by using the tire's recommended PSI which will probably be around 32. After you drive for a while, drop down to 28 and see if you like it better. If you recall the Ford Explorer/Firestone tire debacle, Ford got to the point of recommending 24 PSI on those tires - and Firestone disagreed. Porsches and Corvairs are touchy about tire pressures but that comes from a large % of the cars weight at the back and an exotic suspension. HJs shouldn't need such attention to tire pressure.
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I'm sorry I didn't clarify befor,e But this is concerning a 51 Kaiser
but 32 sounds about right. I'm more concerned with tire longevity than comfortability.
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Well, 205/70PRx15 would be too large for a HJ. I ran 215/70PRx15 on my 51 Kaiser at 32 PSI.
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I will definitely try 32, thanks so much. :)
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Depending on the radial tire construction, some have even higher available pressures with no degradation in ride. Some of the newest "eco" type tires are way higher. Base it on the range suggested by the manufacturer--but there is a lot of wiggle room. I drive a VW diesel wagon as a DD, and it is usually loaded, and runs at higher speeds, so I run at 36 front and 41 rear which is the suggested pressure for loaded higher speeds; the usual pressure for regular driving is about 32. The tires deliver a smooth ride and last a long time even at these higher pressures.
Running on lower pressure to get a better ride on any vehicle is dangerous, as above, the "Ford Exploder" syndrome. If the ride is too harsh, then perhaps a different brand will run smoother.