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Thread: Octane rating for E85?
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02-16-2006, 10:35 AM #1
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Octane rating for E85?
Like the title says, anyone know the octane rating for the new E85 gasohol mix? It dawns on me that if E85 has an octane rating anywhere close to methanol, it would make a heck of a race fuel.
Going forced induction would also enable you to stay dual-fuel, since you could adjust the boost depending on what you were running in the tank...
And can you run E85 in a normal gasoline car? Is it as corrosive as methanol? Any special seal materials needed, stuff like that?
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02-18-2006, 05:58 PM #2
It's 87 Octane. Here's a good website that has a lot of good info about corrosion:
http://www.eere.energy.gov/afdc/e85toolkit/specs.html
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02-19-2006, 05:24 AM #3
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Sorry dude, 87 is not correct.
E85 is actually running between 100-105 Octane. I'm hearing that the Indy Racing League is going to be running it within the next few years.
You are going to see some more corrosion but this is not subtantial when compared to the savings at the pump. All this and we haven't even touched what using this fuel would mean for both the American Economy and the war on terror.
Personally, I think the best way to shut these terrorists down is to quit giving them money. Sorry, had to throw in my 0.2c. I really belive that ethanol can solve our fuel problems. Here are a couple of other web sites related to the subject. Good info.
http://www.e85fuel.com/index.php
http://www.iowacorn.org/ethanol/ethanol_5a.html
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02-19-2006, 08:42 AM #4
Hmm. Maybe I'm just confused.
crimking: I've also thought of this as an at least partial solution to the "fuel crisis" people who are saying we're going to run out of petroleum in however many years.
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02-19-2006, 08:49 AM #5Originally Posted by jimbo98z
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02-19-2006, 08:53 AM #6Originally Posted by crimking
Another good site to visit:
www.ethanolrfa.org
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02-19-2006, 08:54 AM #7Originally Posted by jimbo98z
Last edited by FasstChevys; 02-19-2006 at 08:58 AM.
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02-19-2006, 02:42 PM #8
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Ethanol is produced by the fermentation of plant sugars. Not just corn but all kinds of plants. Corn is used primarily because it has an added value. The corn itself can be harvested then the left over husks and stalks are harvested for the production of ethanol. Fuel for me and my car all in one. And then all the extra cash generated by our farmers. Right now most of them are living off of government programs that subsidise their shortcomings from crops. All this ='s more $ for farmers, less $ spent by the government, less $ spent on taxes by us. More smiles on my face.
Just like any other product, this probably will not be the cheapest solution initially. The refining processes WILL get better though. And sooner rather than later. Everyone has something to complain about, be it gas prices or Iraq or political policies in general. I see this as one way all of us can really address both short and long term issues. Once again, my 0.2c.
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02-19-2006, 07:32 PM #9
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This is good. That means we can start thinking about running 10-15 lbs of boost on a stock engine.
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02-19-2006, 09:54 PM #10Originally Posted by crimking
Ask yourselves this: Who's in bed with who????????????
I'd rather give my money to the American farmer than the F*ckers over in Iraq!!!
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02-19-2006, 10:06 PM #11
doesn't a car have to be designated OK for "flex fuel" in order to run E85? i thought only newer cars were able to run E85?
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02-20-2006, 12:29 AM #12Originally Posted by stonebreaker
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02-20-2006, 03:17 AM #13
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Hey FasstChevys
WTF? You start out arguing that I'm wrong. Then by the end of your post you are championing my cause. If you would like to learn more about the production of ethanol than the info I have provided, I suggest you review the reference sites that I provided earlier. It seems that you may be the one without a clue. Or maybe you just post to post. My moneys on a little of both.
Oh, and if you're going to try and quote me, it's value. Not valeue.
Originally Posted by FasstChevys
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02-20-2006, 07:02 AM #14Originally Posted by crimking
When I was mentioning earlier about "how many plants in the US are producing ethanol efficiently?" I didn't word it right, my bad. What I meant was, how many plants are producing ethanol from husks and stalks in the US as their main feedstock? Today, there isn't one. At least not on a large scale other than maybe some pilot plants doing some research. Again, I wasn't meaning to ruffle any feathers.Last edited by FasstChevys; 02-20-2006 at 07:16 AM.
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02-20-2006, 07:05 AM #15Originally Posted by NE98LS1
This site gives some good info on vehicles that can run on E85. I do believe you can convert almost any vehicle to run E85. I have a '68 Camaro that I'm going to convert over to E85. Basically I just need to make the changes to the fuel system that drag racers have been doing for years. Alky carb, changes to components in the fuel system, etc, etc.
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02-20-2006, 08:25 AM #16
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Originally Posted by Liquifire
Perusing the internet, I was able to determine that the heat of vaporization (evaporative cooling effect) for octane (close as I could get to gas) is about 34 kJ/mol. Methanol was 35.3 kJ/mol, which leads me to wonder if a straight gasoline injection nozzle wouldn't work just as well as meth injection - at least worth looking into; and ethanol was about 39 kJ/mol, meaning ethanol injection should be even more effective than meth injection at cooling the intake charge. I wonder if you would still need to inject it upstream of the throttle body for its cooling effect, to give it time to evaporate?
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05-13-2006, 07:15 PM #17
Methanol is shit. It has much less energy than Ethanol and destroys-eats parts. It is made from wood some how and no one is using it. Or making it to put in cars.
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05-15-2006, 06:31 PM #18
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Originally Posted by ericwilloughby
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05-19-2006, 03:54 PM #19
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Originally Posted by FasstChevys
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06-18-2006, 11:06 AM #20
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How will using ethanol effect your fuel economy. It is my understand that it is almost a 2 to 1 ratio alc.to gas. if converting to alc. You need bigger jets on carb. or would need to be able to flow more fuel on fuel inj. vehicle. Wouldn't your fuel economy be about 1/2 as good as it would be with reg. gas? Plus E85 isn't much cheaper than reg. gas is it?
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