Quote:
Originally Posted by Frank Lee
How does heating E85 fuel aid winter starting?
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Alcohol fuels simply don't want to spark ignite at cold temperatures, the remedy for E85 based cars that was offered is to have e70 but at below zero temps it still won't burn. My next door neighbor had a Taurus that ran on e85 and it was a bear to get started, impossible below zero, he wrapped the fuel filter is some heat wire along with the block heater and the car would start OK with some cranking, as opposed to sit there doing nothing.
e85 and alcohol fuels are best used in the tropics not up north where they won't light.
Quote:
Originally Posted by basslover911
A lot of people are against it because of how "dangerous" it might be.
I, however, am all for this (like you said, that IS what fuelvapor tech is doing anyways).
However, you have to increase temps to much higher than that, something like 200-250 degrees. AND be able to control that temp to not go over. Remember, the system is pressurized to around 50psi so the self ignition of gas rises considerably, which is what people don't really realize and that's why they say its "unsafe".
Again, you must get it pretty hot though. I plan on doing this myself someday, but I first have to see what the temp at my fuel rail is right now (probably around 100 degrees).
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I am all for it too, especially if combined with a preignition CAT to crack the fuel into a uniform hydrocarbon, the trouble is to really VAPORIZE all of the fuel you need around 500C very very high and a hi pressure injection system. This is because we don't burn napatha or white gas anymore, it has a lot of heavy oil like components as fillers to cheapen the gas that will crud up a vapor system quickly.
However any temperature increase of the fuel increases the vaporization level inside the cylinder and improves emissions and mileage, sadly the best gains are at very high temperatures. Another experimental system that some folks are working on for stationary motors is making a fine gasoline mist with a ultrasonic humidifier and sucking that through a fractioning carb similar to a CNG or propane carb.