Join Date: May 2002
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Re: Hi Tec problem poll ??
I would concider 20 PSI a little low. Factory specs 22 or 23 I think. I run 22 but the 410 is a bit lighter that a Samurai, I have heard in other posts you carry a fair amount os weight Crow, so you might need a bit more pressure.
Its all about balancing weight against load. Most tires in the sizes mentioned are designed for vehicles around 4000lbs. or more. Typical max pressure (depending on case manufacturer) is 36-44 PSI, so an empty zook running about 1/2 the weight can run about 1/2 the pressure and get about the same sidewall flex which is what is causing the heat buildup. This is of course, an extreamly rough rule of thumb, but you get the idea.
In any case Crow, on road I wouldn't run less than the suzuki recomendations, if your carrying an extra 500-1000 lbs. maybe high 20's to very low 30's. Also, is your weight on the rear, or more evenly divided? You may want to bias more pressure to the rear if the load is back there.