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      02-14-2013, 02:33 AM   #11
will-w
'Captain Slow'
United Kingdom
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Drives: F20 118d M Sport
Join Date: Jun 2012
Location: Kent, UK

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2012 F20 M Sport  [10.00]
Quote:
Originally Posted by ovekvam View Post
So would you run higher or lower pressures in cold weather? And why?
I would think you would run higher pressures in colder climates and lower in hotter climates.

My (somewhat fuzzy) reasoning behind it is that in a hotter climate the tyre will get a number of times hotter in use than that of a colder climate. Hotter conditions plus hotter tyre should equal a larger change in volume/pressure of the air in the tyre.

In the UK you can get up to 2psi change of pressure after some progressive driving, I'd expect in a climate 15-20*C hotter that would be more like 4psi?

Of course I'm no scientist and the above is purely my own fiction (except the UK pressure change), so I could be completely wrong and talking crap
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