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In closed loop feedback systems the final arbiter of mixture is the O2 sensor, which tells the ECU whether the mixture is too lean or too rich many times a second.
Increasing the fuel temperature will enhance atomization to a point, beyond that point you get boiling fuel in the supply line with vapor lock of the injectors.
The fuel temperature will not change the basic mixture control and the O2 feedback.
The belief that you will achieve some miraculous increase in mileage is actually supported by knowing that Homogenous Charge Compression Ignition can provide a 25% increase in power generated for the same volume of fuel delivered. Many millions of dollars have been spent in pursuit of practical applications for HCCI, including preheating the fuel and air as well as turbulent mixing of that mixture, but the ability to maintain HCCI throughout all the operational parameters of normal engine function has yet to be achieved.
I am sure preheating the fuel is a component of HCCI. I am also sure that wrapping a coil of copper tubing around your radiator hose will not achieve HCCI.
chope;
I deadlifted 6 times my body weight when I was 24 years old (900 pounds), 33 years ago.
I don't see how that has anything to do with the credibility of my statements in this forum.
You talk about a modification which has some validity, but in the same post you freely admit your vehicle needs some serious maintenance or repair.
60,000 hours making a living working on cars, as well as college board scores that were good enough to get me accepted in Virginia Tech with a major in Nuclear Physics, in the fall of 1968.
Does that make me anything special? NOPE.
Scientific proof requires precise measurements of the fuel used.
One way is to make a special tank that you weigh before and after your test, to precisely measure the fuel consumed regardless of the temperature of that fuel.
Assume your fuel temperature has increased by 100 degrees, that means its volume has increased significantly, even though it's mass is the same.
I tried measuring fuel by volume and had certain portions of my testing where I drove 9 miles and had more fuel when I finished than when I started.
This is not possible, so when I measured the temperature of the fuel I realized that the volume had increased while the total mass had decreased. I had to adjust the volume for the difference in mass due to the temperature.
If you want to get mad because we question your results, it only serves to make you less credible.
I was a certified Master Tech in 1978, now I am a tired semi disabled old man, who has two patents pending on designs for vehicle powertrains that I know can make a huge difference in this world and could change the global climate after I am dead and gone.
Believe me or not I understand the frustration of percieved rejection. I have been dealing with this for the last 8 years. I have watched this country bleed 2 trillion dollars of treasure while I know how to fix it.
Good luck with your idea, it is actually a component of my engine design and one of the sources of successful HCCI that is a basic design parameter of my engine concept.
regards
gary
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