Quote:
Originally Posted by Isaac Zachary
You can vaporize as much gasoline as it will boil. But just like a tea kettle that's on the stove, once the steam (vapor) hits the cooler air it forms liquid droplets (the white "steam" that you can see coming out of the whistle). If the air saturates with gasoline the same thing will happen, much of the vapor will transition back into liquid droplets, which you could have gotten the same effect with a good fuel injection nozzle.
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The pressure increase during compression stroke, and the direct proportion between pressure and temperature, is more likely to avoid the gasoline vapors to condense back into liquid, as long as the mixture is not excessively rich.