Quote:
Originally Posted by Denis
Hey folks,
All this stuff with hyper inflated tires is fine but does it make economic sense ?
Overinflated tires will not last as long as normally inflated ones so while you save gas, you loose tire life ! Time for a reality check maybe  |
My response....
Prove it
I've got 20-25K miles on my tires inflated to 55 front, 50 rear.... Wear has been even, I still have more than half of my tread left.
Plus, I live in an area that gets a lot of heavy rain - having less hydroplaning risk has been a nice benefit
If you don't want to believe me (and all the others on this board with the same experience)...
How about this?
And for thoroughness.... Stopping distance
Quote:
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In general, these data suggest that the road surface and depth of water on the road have a large influence over stopping distance. Given a specific road condition, one can compare the difference in stopping distance when the tire inflation level is varied. The Goodyear test results imply that tire inflation can have a significant impact on stopping distance*, while the NHTSA testing implies these impacts would be minor or nonexistent on dry surfaces and wet surfaces with very little water depth.
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Quote:
*# Stopping distance generally increases with lower tire pressure. The only exception was on concrete at 25 mph.
# With fairly deep water on the road, (0.050 inches is equivalent to 1 inch of rain in an hour) lowering inflation to 17 psi and increasing speed to 45 mph increases the potential for hydroplaning and much longer stopping distances.
# Except for 25 mph on macadam, the difference between 25 and 29 psi is relatively small.
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FEA chapter III. tire pressure survey and test results
And that ends this reality check
