One reason only...Greed. There are some sites that research alternative fueling that use exhaust heat and coolant heat to improve efficiency in the combustion process. Check out keelynet.com or "encyclopedia of free energy".
Watts
In my opinion, if you're trying to vaporize or "boil" gasoline, you would be much better off switching to a simpler carb setup. The amount of heat needed to boil at 35 psi really exceeds practicality.
I've been doing some research myself on practically the same subject. I've found that heating or cooling the fuel in an injected engine really doesn't make much of a difference. If you have a carbureted engine, heating the gasoline vaporizes it, and therefore the unused energy that normally...
