| Author | Message | ||
     Scottorious |
ok ok yes im bringing it up again. I am still not fully convinced that running E85 would be a bad thing if the engine was set up properly for it. If the alcohol absorbs heat from the intake charge therefore condensing the air which then allows for more fuel it seems like it would be a good thing. or am I just really off my rocker still. RickieD I am expecting your opinion. You seem like you know what you are talking about and not ready to accept what everyone says as true. What does everyone think? | ||
| Scottorious |
There are many disadvantages to using alcohols, particularly methyl and ethyl alcohol. Although these alcohols, when used near their stoichiometric air-fuel ratios, produce more power, a larger quantity of fuel is required to produce a specified power output. For example, in an automobile, more fuel is required for each mile driven. The relatively high latent heats of methyl and ethyl alcohol cause problems in mixing these alcohols with air and transporting them through the intake manifold of the engine. Heating the intake manifold may be necessary in cold weather or before the engine reaches operating temperatures. Without external heat to more completely vaporize the fuel, the engine may be difficult to start and sluggish for a considerable time after starting. Butyl alcohol is the least likely to cause starting difficulties or problems during warm-up. Note that its latent heat is almost the same as the latent heat of octane. those are listed as disadvantages but the first says it will create more power but needs more fuel. I am fine with using more fuel because I want more power. More power equals more fuel for gasoline or alcohol so thats not really a disadvantage the other paragraph basically makes it sound like an air cooled engine would be a perfect choice for alcohol. I know my intake gets hot/warm all the way out to the filter so that seems like it wouldnt be as much of a problem on a hot air cooled engine. | ||
| Cthulhu |
I think you might have to look into the effects E85 would have on rubber and plastic items. I know on my Cyclone, I'd think about the fuel line, the gas tank, accel pump diapraghm, and the o-rings in the carb. You'd have to look into those before you even started sweating the tuning, and heat type issues. | ||
| Terrycoxusa |
I read tests in car mags that said they got about 30% worse fuel mileage with E85.If your bike is carbureted, you'd have to go way up on you jet sizes, if it's FI, you would have to do some serious fuel programming. Then, of course, there's the whole issue of diverting food corn to alcohol production. | ||
| Snake_oil |
I ran straight alcohol in a hillclimber, 676cc air cooled Rotax. The trick was to flush everything after every event. The alcohol really oxidizes the aluminum. I won't put E-85 in my M2 unless there is no choice. I get 92 octane without alcohol here in oregon is it that way in all states? | ||
| Scottorious |
most everything around central IL has 10 percent alcohol in it. What kind of alcohol did you run snake oil? | ||
| Snake_oil |
pure racing alcohol from VP, I have a fuel station 1/4 mile away with the no alcohol 92 octane premium and 110 octane race fuel. | ||
| Nmbuell74 |
Alcohol class in tractor pulling pulls a lot more feet, more power. No need for corn, hemp will give you 10 times more alcohol. |
