Optimum Fuel Temp?

[PoorManQ45]

What is the best possible temperature to have the fuel at before it enters the combustion chamber?

By best, I mean the temperature at which the most gas is burned, and the fewest harmful exhaust gases are emitted. And the Highest performance is obtained.

*edit* WOuld there be any performance gains from heating up, or cooling down, the fuel?

[squeefoo]

Smokey Yunick designed an engine he called the "Abdiatic Process Engine" there was a write up on it in Popular Science about 15 years ago. He heated up the F/A mix with an "interheater" with exhaust. Then ran a supercharger with a pressure actuated pop off valve converting the super to turbo at a preset pressure/boost. Heating the F/A mix made it run on fumes, apparently lots of power and good mileage too. The supercharger got it off the line then the turbo kicked in at higher RPM's to save mechanical losses. I think the car was a '80's Citation w/ a 2.5L and a 4 or 5 speed. It could smoke the tires from a stop in 3rd.

Smokey said he got the idea when a farmer got killed torching the top off a drum that had been sitting for a few years with the bung off, but still had gas fumes in it somehow.

[squeefoo]

http://www.fuelvapors.com/

And I spelled adiabatic wrong...

[PoorManQ45]

Thanks for the reply squeefoo.

I would like to hear what Dennis or Daedulus has to say about fuel temperature. Anybody else feel free to reply if you know anything about this