E85 fuel...is it a good thing???
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Through a little more research I found out that the stoichiometric coefficient for ethanol about 9.0:1, meaning you'd have to burn almost 1.5 as much just to get the same amount of power. But, that would only be if you are burning 100% ethanol. If you ran 20% ethanol, 80% 91 octane you'd have an octane rating of almost 94 and need about a 12.4 to run correct air fuel. Seems like this wouldn't be to hard with a properly tuned car.
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it's not hard to run e85, it just takes more. to be more specific about the problems i had... normally i idle just fine at -30% with my afc, but i had to richen up to -22% to get the vacuum needle back into the proper place. when i did a couple of 3rd gear pulls, i had to richen the entire curve 3-7% (something like that) to maintain the same knock counts as with my 92octane settings. sure, with e85 you can get better octane and run more boost... but there are so many other factors that need to be considered.
also keep in mind, these numbers are at +/-19psi on the 14b -
well...now that the idea of e85 working isnt true, im wondering if this stuff called xylene and tylene (sp?) work. a lot of ppl use it in dsmtuner as an octane booster...seems like they use it in a 10-15/85-90 mix with gas because xylene has an octane of 117 and tylene has an octane of 114...im not sure how much they cost around here exactly, but it would be great if you could make your own "home made" race gas, so you could run a little bit more on the street if you want, cuz we live in ND/MN and nobody seems to have over 92 octane at the pump around here (correct me if im wrong, cuz im not totally sure)...have any of you tried either of those to things?...later
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I use Touelene (sp?) on the street. It reduces my knock
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the advantage of Tuolene is that it is unleaded so doesn't mess w/ my O2 sensors. Tuolene isn't too badly priced either if you buy it in larger quantities (Fargo Glass & Paint can get upto 55 gallon drums, I buy it by the 5 gallons..special order)
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xylene and toluene are available at any chemical supply or paint place, they're basically paint thinner. i personally like xylene because it's +/- $6/gal and, like chuck said, it's unleaded.
if you're going to use xylene or toluene, use a higher %; something like 1gal to 3gal of 92octane, and then reset your ecu -
I like Toluene as it is found naturally in gasoline. In fact the F1 cars of the early-mid 80's used to run on 85% toluene back when they ran turbo 4 cylinders. Obviously we don't have F1 engines in our cars as noone is making 750 HP/liter, but at least we know it can be run in a gas engine as it is present in gas already.
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comes to like $5.75/gallon or something like that
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I think the place in W Fargo sells it for that..can't think of the name of the place though....
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right off main...damn it, I know someone here know where it is...I can drive right to it but couldn't explain where it is to save my life.
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