theholycow |
05-03-2008 03:22 AM |
Quote:
Originally Posted by dkjones96
(Post 97811)
You guys are pretty daring, call me what you will but I think if you're doing highway speeds anything over 25% above rated is just crazy. You have the added pressure of the air plus centrifugal forces working to rip that tire to shreds
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That's not the sort of think that's likely to happen. Tires (well, common modern automotive pneumatic tubeless radials) are very overbuilt against that sort of thing, because there's other things that are much harder on them. Mainly, when you hit a bump hard with the tire inflated far past its maximum rating, you have an increased risk of the bead breaking loose. Since highways tend to be pretty smooth, this is a city driving issue.
These tires don't pop like a bicycle tire, and they don't fly apart unless they're underinflated and overheated. It's funny, this is the ONLY forum where I've ever had to take this side of the tire pressure argument. There was a "Poor man's mods" thread on golfmkv.com where I tried to explain the advantages of inflating past the car's recommendation but not beyond the tire's maximum, and the FUD was just awful, so I finally gave up.
Quote:
Originally Posted by basjoos
(Post 97816)
A year or two ago, someone posted a link to an article about a police driving school where police officers learn the extreme driving techniques they sometimes need to use in their jobs. Things like high speed manuevers, riding on 2 wheels, etc. The cars in that school keep their tires inflated at 100psi.
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That's fine for controlled conditions and limited time/mileage. If they were operating IRL at 100psi on tires rated for a maximum 50, they'd blow them on potholes and bumps. Riding on 2 wheels would necessitate high pressure, considering the extra weight and the sidewall forces. J-turns would need high pressure to reduce the contact patch.
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