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Methanol, Ethanol, Alcohol?

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Old 05-31-03, 02:19 PM
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Question Methanol, Ethanol, Alcohol?

I am a bit ignorant when it comes to these types of fuels, so I have a few questions. The first being how well do they prevent detonation? Are they on the same level as 100, or higher, octane race gas? Do any of these cause excess engine wear? Are they applicable to rotary engines? And which of the following (for lack of a better word) make more power? Or do they at all? Thanks for your time.
Old 05-31-03, 09:47 PM
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Im thinking of running Alcohol on my car. Well Im not thinking of it Im probal going to do it and run about 16lbs on the stock *** twins or 15.5lbs. I would run alky and 93 octane. 100% denurterd alcohol. Im not to sure of everyhting yet. Mounting the bottle for the alky would be hte had part. I'm probaly just going buy a racing 5 gallon fuel cell and run the alky in it. Well see..

Itll be about a month before I start the install etc.. Should work fine.. and it really helps prevents knock/detonation. Alot fo friend swear by it (on GN and one TTA)

Josh
Old 06-01-03, 04:38 PM
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are you talking about complete meth, eth, alky? or just to use them as a fuel-enrichment?

alky doesn't really higher the octain rating, it just extract heat to lower cumbustion (engine heat) to prevent detonation.

i notice you left out WATER, water has an unlimited octain rating because WATER can't be BURNT, octane rating is accounting how the chemical is burnt.

and propain be the "bomb-diggity" too, a little too dangerous for street use, but it's octain ratting can be up to 110 or more!

Last edited by 600HP CLUB; 06-01-03 at 04:40 PM.
Old 06-01-03, 04:54 PM
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and propain be the "bomb-diggity" too, a little too dangerous for street use, but it's octain ratting can be up to 110 or more
maby im crazy, but after reading alot of thread's on dsm'ers using propan injection i was plannin on going that route on my FC project to allow for some decent boost on hightest
Old 06-01-03, 08:27 PM
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In Australia, there are plenty of street cars running LPG, which is basically a mixture propane and butane.

A while ago, the government here was trying to get people to use LPG because it is so much cheaper and cleaner, so we are one of the only countries where a large number of cars run on the stuff.

There are a number of people on Ausrotary.com who run 13B turbos running straight LPG. Its not injected, because it is in gas form when it reaches the engine - its basically delivered by carburettor, but has none of the atomisation problems of carburettors.

110 octane means you can run high compression rotors, big boost, and you can dial in maximum advance very low in the rev range.
Old 06-01-03, 08:53 PM
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110 octane means you can run high compression rotors, big boost, and you can dial in maximum advance very low in the rev range.
hey, and with my plan of action being a 13b-RE with 9.7 rotors and a gt35/40, propane seems to be the perfect route
Old 06-01-03, 08:59 PM
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It would definitely work...however the only way I've seen it done is by replacing the throttle body with a massive LPG carburettor (very large flow throttle plate). I see you have a Haltech E11 - what I described would only use the ignition maps, as the gas does not need to be injectors. the engine should also be configured for it - you need special spark plugs, and I believe different seal springs (2mm seals are fine for this, I think).

Do you guys in North America have LPG (Liquid Petroleum Gas) at service stations?
Old 06-01-03, 09:04 PM
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ive never seen lpg on the pumps up here in new england, im sure its around somewhere

i wasnt planning running just propane, i was gona run hightest with propane injection. However if i can find a pile of info telling me to run just propane, ill consider it

EDIT:

i ment information on settingup, tunning etc on a rotary. i know thers a tone of info on piston motors

Last edited by CrackHeadMel; 06-01-03 at 09:09 PM.
Old 06-01-03, 09:11 PM
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well, I'm now out of my league, so I'll refer you to this website:

http://www.gasresearch.com.au/

remember, propane is dangerous stuff - don't go trying to do this stuff yourself. Here lPG can only be installed by accredited lpg specialists...back in the day, there were a few "incidents" - one of my dad's friends died from an LPG explosion.
Old 06-01-03, 10:33 PM
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straight **** of something is pretty crazy, i've seen couple NATURAL GAS (propain) crown victorias (cop cars/taxi) their tanks replace half the trunk, last about 200 per tank.

when i'm good to go, i'll run enrich style, not full. if your planning on water injection etc - for enrichment, contatct RICE RACING he knows his ****!
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