>Don, water vapor *is* steam, or vise versa. "Steam" is ambiguous. Most people think of steam as the visible water particles (liquid) which condense out when pure steam comes out of a tea kettle. But yes, the relative humidity in the air is steam (or water vapor), as is the water in a tire. > From racelinecentral.com (note this is for racing, not our kind of > driving: > >>Tire Temperature synopsis: >> >>Optimal temp range is between 190-240 degrees. >The boiling point of water at 13 psig is 246F -- slightly above >optimal range What type of race vehicle runs at 13 psi, except those swamp things, where heat isn't an issue? From your source (racelinecentral.com): >NASCAR Winston Cup TRUE TIRE HISTORY...The tires are inflated around >50 psi. |
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