Quote:
Originally Posted by Bruce Johnston
...One of the old race pioneers, Smokey Yunick actually built an incredible hot vapor engine where he used part of the wasted combustion heat to pre vaporize the fuel mixture. this process not only put the fuel vapor in a fully vaporized and combustable state, it created a natural forced induction due to the thermal expansion of the gascious mixture.
The result which was well documented, was a substantial gain in both fuel mileage and horsepower.... Bruce.
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I remeber that guy. He raced Hornets in the early days and then switched to the Chevy/GM teams. He was really into aerodynamics and I think he pioneered techniques for "injector stuffing" using driver adjustable ram air ducts to control the intake pressure for better injector performance. I never heard about heated fuel, though.