[Isaac Zachary]

A few things come to mind, however.

1. Gasoline is comprised of several liquids that boil from some 35 °C or 95 °F to some 200 °C or 395 °F. So heating it to water temps of around 200 °F or 97 °C isn't going to boil everything, but still could cause vapor lock with the lower temp boiling liquids.
2. Yes, the fuel rail is at a high pressure, but the compression stroke creates even more pressure than the fuel rail. So what would happen to those liquids that were liquid at 45psi, vaporized at 14psi (or whatever atmospheric is) and then get compressed back to 150psi or so?
3. I still feel it is imperative to take into account the total heat energy in the air and fuel. The question is how much heat energy does the charge need to keep all or at least a certain percent of the gasoline in a vaporized form. For an example, boiling fuel also reduces temepratures. It takes a lot more heat energy to heat a liquid to a boil and boil it all out than to pressurize it and heat it up 10 or 20 degrees past it's boiling point. When such a pressurized liquid hits a pressure drop to atmospheric some of it boils off, but the rest just cools down to just under it's boiling point and stays a liquid.