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Originally Posted by GreyGoose006
as i understand it, acetone has little or no effect on Fuel Injection engines.
the reason is that acetone is a surficant of sorts. that means that it nearly eliminates surface tension in the gasoline as it is being injected into the engine. this aids in atomization of gasoline, which helps make more power while wasting less fuel (as unburnt exhaust) and cleans the whole system in the process.
carburators have poor fuel atomization, so they can benifit the most from acetone.
the thing that worries me about acetone is having it sit in the tank.
can anyone think of a way to inject acetone into the mix right before it enters the carb? kind of like a modified water injection system. it would be better because you could get the metering down and not have to worry about getting the ratios right in the tank.
could you modify a wet nitrous system to inject acetone?
this might be the best way.
you couldnt inject it before the carb, but that might help prevent doing damage to the rubber in the carb anyway.
opinions anyone???
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An engine burn 98-99% of the fuel it gets given that there is enough oxygen for a complete burn. The small amount of fuel that is not burned is not caused by poor vaporisation, rather is's caused by low temperatures encountered at "hidden places" in the combustion chamber (the fuel injector nozzle of a diesel, the space between the piston and the cylinder above the top ring and so on). Even if there was an additve (catalyst) that could make those last 1-2% to burn, it wouldn't have any significant effect on the fuel consumption. There are in other words no margins for improvement in this area.
The explaination about how acetone work is also completly BS, it's nothing more than pseudoscience. Here's a few examples of the stupidity:
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Complete vaporization of fuel is far from perfect in today's cars.
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As explained above, this is not an issue
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Surface tension presents an obstacle to vaporization. For instance the energy barrier from surface tension can sometimes force water to reach 300 degrees Fahrenheit before it vaporizes.
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Someone was obviously sleeping during physics class in school! Phase changes, heat of vaporisation, vapor pressure... does it ring a bell?
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Most fuel molecules are sluggish with respect to their natural frequency. Acetone has an inherent molecular vibration that "stirs up" the fuel molecules, to break the surface tension.
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A first class example of pseudoscience. Mix together a lot of words so that it appears scientific, preferbly words the average person does not understand. However, in the end it has no scientific meaning.
If we go back to actual science, we know that driving habits can affect the fuel consumption as much as 30%. We also know that it can be difficult to measure the actual consumption without additional testing equipment. In other words, if you want to compare fuel consumption data for a car you need to do it by following a specified driving cycle where the car is put in a controlled environment with equipment measuring all significant data. If you do this, I can guarantee you that you will get evidence that acetone does not improve mileage.