fuel superheater
I agree with most, cooler is better, My Old mercedes uses the air conditioning as a thermocouple to cool the incoming fuel so that it vaporizes better and eliminates vaper lock. I trust mercedes in their design, must be correct.
Originally Posted by Klitch
lol wow i was hoping i wasnt retarded thinking it would cause problems.
To clarify a bit more, its supposed to bring the fuel nearly to its boiling point or over (im sure in some cases) since fuel is almost never mixed identically and im told that the boiling points can vary by 200 degrees!
I am looking at fabbing my own type of system, looking at lines and fittings
right now.
I am looking at fabbing my own type of system, looking at lines and fittings right now.
Arctic Fox and Racor.
Originally Posted by Larry227
Originally Posted by lenore
I agree with most, cooler is better, My Old mercedes uses the air conditioning as a thermocouple to cool the incoming fuel so that it vaporizes better and eliminates vaper lock. I trust mercedes in their design, must be correct.
Have to see what crash says later on..
Last edited by jbrew; Jul 7, 2007 at 12:12 PM.
Well I was doing some research on this and found some interesting info. On the Crown Victoria 4.6L NG has a fuel temp sensor. It measures the temp and is used to adjust the fuell injector pulse width and meter fuel to each cylinder. It does not say why it is installed. I will do some more research. Thought I would throw this out there incase someone has any additional info on this.
I have come across articles on the web over time about the heating of fuels before injection. Many elaborate attempts seemed all to funnel down to better MPG by heating up the fuel, whether in the tank(not for me!!!) or inline prior to the injectors. Dont remember much of these articles harping on increased power but really were written with fuel economy in mind. However, IIRC, the articles were written back in the day of carb engines and belt driven fuel pumps so vaporlock must not have been a concern. There have been many discussions that if fuels were greater atomized and less left in liquid form during injection, then the increase in vapors would be read by the O2 sensors as a trigger for the ECM to reduce the fuel flow, and allegedly increasing mpg. I have always been told that the fuel mixture is such that there is so much to become vapor, ignited, thus giving the power on that stroke, but the unburned fuel acts as a coolant during the same stroke. If that is the case, you really wouldn't want too much reduction in fuel or else you run lean and we all know what happens when running lean.
Here is another link about some of these fuel heaters in current vehicle applications. If nothing else it is interesting reading and stirs up conversation , really makes the brain tick about cause and effect and physics "which i hated"
http://www.brightgreen.us/
http://www.brightgreen.us/
================== Physical/Chemical Properties ==================
Boiling Pt:B.P. Text:70F
Vapor Density:5
Spec Gravity:0.74
Solubility in Water:NEGLIGIBLE
Appearance and Odor:CLEAR COLORED LIQ (ORANGE) GASOLINE HYDROCARBON
Percent Volatiles by Volume:100%
If the boiling point is 70 F heating it to 200 F would be bad and what if your engine is over heating 250 F
Boiling Pt:B.P. Text:70F
Vapor Density:5
Spec Gravity:0.74
Solubility in Water:NEGLIGIBLE
Appearance and Odor:CLEAR COLORED LIQ (ORANGE) GASOLINE HYDROCARBON
Percent Volatiles by Volume:100%
If the boiling point is 70 F heating it to 200 F would be bad and what if your engine is over heating 250 F
Being under the pressure of the fuel pump it would not boil, just like antifreeze in a radiator which can get hotter than the boiling point until pressure is released.
Gasoline has 400 different components which can vary the boiling point immensely.
Boiling point of 70 F ??? Is that a typo?
Gasoline has 400 different components which can vary the boiling point immensely.
Boiling point of 70 F ??? Is that a typo?
Originally Posted by jbrew
I was curious if any manufacturer plummed the AC to better performance - Yea , anything to denson/cool it down before the spark seems better.
Have to see what crash says later on..
Have to see what crash says later on..
As for acetone, my personal testimony is that 6 ounces on every fill up at the texaco near my house nets me 60+ miles extra on every tank of gas. For a year now I have had super consitant results. The can costs $6 bucks at walmart and lasts10 tanks I think. That's an extra 600 miles for $6.



"Vaporlock"