The only truly "correct" tire pressure is that which causes the tire to evenly distributes the load across the tread width as it contacts the pavement. If one assumes that this is achieved at maximum load and pressure as specified on the tire sidewall AND that this relationship is linear and proportional, then indeed the "correct" pressure may be calculated by the following formula: Max load/max pressure = current load/current pressure The above works fine in a static or a constant-load environment. I think the best solution is use a pressure which achieves best handling characteristics and monitoring tread wear patterns closely in order to correct problems early. In my experience I discovered that using tire pressure near the max specified by tire manufacturer resulted in best handling and wear characteristics. ===== Chris S.'85 Westy Camel -> http://www.knology.net/~vw/vws/camel/ '84 Westy Hershey -> http://www.knology.net/~vwghost/hershey/ '01 NB TDI -> http://www.knology.net/~vw/Beetle.jpg |
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