Try to make a vapor fuel supply system

AI Thread Summary
The discussion centers on creating a vapor fuel supply system for a gasoline engine, specifically a 3.2L V6 Isuzu. Concerns are raised about using an ultrasonic mister due to potential spark risks, while heating the fuel to its evaporation temperature is considered a safer alternative. Suggestions include running insulated copper wires between the exhaust and intake manifolds to heat the intake pipes and moving the fuel injector upstream for better vaporization. However, space limitations may hinder modifications to the existing fuel injection system. The conversation also touches on the importance of addressing vapor lock and the potential benefits of pre-heating intake air for cold starts.
Qaiphyx
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What would be the most basic and solid way of doing this for a gasoline engine? I've thought about using a ultrasonic mister but I am afraid that there may be a potential for a spark, don't want to blow up. I've also tossed around the idea of heating the fuel to its evaporation temps, but not sure what the simplest way would be to do this. Any ideas?
 
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It happens automatically when the fuel hits the piston face which is much above the vaporization temp of gasoline.
 
I understand that, however I need it in a vapor state before entering the cylinder.
 
Run some insulated copper wires between the exhaust and intake manifolds. Should heat the intake pipes beyond 95C or wherever the boiling point of gasoline is at that pressure (less than 1atm because it is throttled).

Also you can move the fuel injector further upstream if it is too close to the intake port, to give it a chance to vaporize. I don't know what engine you have so this might not be necessary.
 
Its a 3.2L v6 isuzu fuel injected motor. I was thinking something a little more independent of the already existing fuel injection system. To my knowledge there's not enough room in the area to move the injectors.
 
What are you trying to achieve by this?

Usually vapor in the fuel lines is called a "vapor lock" and is not a good thing to have.

If you are bothered about starting in very cold conditions or something like that, pre-heating the intake air would be a better and safer idea.
 
Run an old school stove pipe off your exhaust into the air stream it will heat it up nicely.
 
Qaiphyx said:
Its a 3.2L v6 isuzu fuel injected motor. I was thinking something a little more independent of the already existing fuel injection system. To my knowledge there's not enough room in the area to move the injectors.

Are you trying to solve some problem or make some improvement? Are you trying to develop a replacement for the existing fuel system or supplement it for some reason?
 
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