http://www.officer.com/article/artic...on=19&id=27281
This shows the relationship between temperature and tire pressure. Their test indicates that for a 20 minute drive you can expect ~+4Psi.
http://www.tirerack.com/tires/tirete...e.jsp?techid=1
Quote:
Disadvantages of Overinflation
An overinflated tire is stiff and unyielding and the size of its footprint in contact with the road is reduced. If a vehicle's tires are overinflated by 6 psi, they could be damaged more easily when encountering potholes or debris in the road, as well as experience irregular tread wear. Higher inflated tires cannot isolate road irregularities as well causing the vehicle to ride harsher and transmit more noise into its interior. However, higher inflation pressures reduce rolling resistance slightly and typically provide a slight improvement in steering response and cornering stability. This is why participants who use street tires in autocrosses, track events and road races run higher than normal inflation pressures.
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http://www.tirerack.com/tires/tirete...e.jsp?techid=1
-Notice, no mention of higher than normal wear, or blowouts.