1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

alcohol?

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Old Jun 4, 2002 | 09:47 PM
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alcohol?

just wondering about alcohol maybe mixed with gas. more potent mix? thought about trying this in my scooter to pop it up to about 45 in speed to run with traffic. anyone tried/know what to do/results? kaboom?
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Old Jun 4, 2002 | 09:53 PM
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You have to jet the carb a lot richer.
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Old Jun 4, 2002 | 10:13 PM
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Alcohol's fer drinkin', boy, not fer enjuns...if you're gonna do an alternative fuel, then doi right and run a mix o' nitro...(hick)...
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Old Jun 4, 2002 | 10:16 PM
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that sounds interesting?
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Old Jun 4, 2002 | 10:22 PM
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I forgot to add... unless you modify the engine to take ADVANTAGE of the alcohol (crank up compression) you won't get any power gain.

I think I can get my 80cc engine up to around 14:1 compression, want to run it on a witches' brew of alky and acetone Still working on the details of it though...
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Old Jun 4, 2002 | 10:29 PM
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ACETONE!? Are you nuts?? That's a proven lab carcinogen! I wouldn't want to be in the same square mile when you ignited that concoction!! Sheesh...
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Old Jun 4, 2002 | 10:42 PM
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well i was looking for an alternative to nitrous that i could put in the tank that would be more potent. i just thought the something more potent produces a bigger bang and then of course more power.
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Old Jun 4, 2002 | 10:48 PM
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The real problem with alcohol (besides the fact that it likes to eat rubber) is that it's hard to ignite. You need compression and more timing to take advantage of the fact that it won't detonate on you and runs cooler. But that's not a problem with rotaries, anyway. Nitro is fun, but getting some and handling it don't make it such a wise choice for daily street use. Again, the nitromethane also needs more timing because it , too, is hard to start burning. It's also hard to detonate a nuclear bomb... but well worth the results!! Hahahahahahahahahahahaha!!!
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Old Jun 4, 2002 | 11:14 PM
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nuclear power, hmm..........................
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Old Jun 5, 2002 | 12:03 AM
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Back when my dad had to run his 79 on emmissions he would put some high proof alcohol in the gas tank to make his car seem to run a little cleaner... and the funny thing is that it worked.
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Old Jun 5, 2002 | 12:29 AM
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I forgot to add... unless you modify the engine to take ADVANTAGE of the alcohol (crank up compression) you won't get any power gain.
Thats not completely correct. You WILL see a increase, I know because of 2 reasons: The O2 content is greater in it. I have also confirmed this when I played with the jetting and fuel pressure on my 50DCO weber. My main problem was accerator pump nozzle sizing. Rapid throttling is going to give you massive hesitation followed by acceration. Anotherwards, GET the largest possible acc. nozzles and you'll be fine. Keep your air corrector the same, and get 30% larger main fuel jets and you'll be very close to optimial. This is why you'll get about 60% of your gasoline MPG with 14:1a/f.

Ofcourse, the maxium power gain would require higher compression, but even without, I garontee I felt a major improvement with acceration when I mixed it at 50% with less then optimial jetting..you want about 9.2:1 a/f. Without optimizing compression you'll see about 10-12percent increase, with optimized compression, more like 15-17% increase in power.

They sell it here in MN in 85%ethanol 15%gas or E85. 1 great benfit of this fuel is cleaner engine and oil will stay much cleaner since the ethanol quickly vaporizes out of the warm oil.

[QUOTE][The real problem with alcohol (besides the fact that it likes to eat rubber) is that it's hard to ignite. You need compression and more timing to take advantage of the fact that it won't detonate on you and runs cooler/QUOTE]

Another myth, unless you have pre-1960 rubber, which was natural at the time, your modern rubber lines are more effected by certain components in the gasoline. Also that is correct, you do want to advance the timing a little, but that isn't exactly hard to do you know. It is true, ethanol is harder to get ignited on a cool day, but not enough to not use it. It took me a extra 5seconds to get it to get running. One thing interesting, it really really acts like a major refigerant compared to gasoline on the intake tubes as much more condensation will appear at part-throttling.E-85 info
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Old Jun 5, 2002 | 02:20 AM
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5% tech. alcohol in fuel is better for burning mixture in motor in high rpm (6000/min and more)
try it it is no dangerouss for motor
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Old Jun 5, 2002 | 02:21 AM
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WARNING:
use tech alcohol, no Jack Daniels, it is cheaper!!!
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Old Jun 5, 2002 | 08:43 AM
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All gasoline sold in Minnesota has a 10% blend of Alcohol in it. I spoke over the phone with the folks at Mazda Racing and thought alcohol would eat through lines and dirty up everything! What morons! Unless they were talking about Methonal which is corsosive to metal they are really dumb. I think there intellegence on fuel properities is highly over estimated.

Alcohol is sold in MN is a blend of 15% gas 85% ethanol (E85) and never has problems with fuel lines or corosiveness with the FFV's(Flex fuel vehicles) they are intended for. They run cleaner and have a sweet smell from the exhuast as well. And ofcourse more power when running alcohol.

By the way, if you were dumb enough to put jack daniels in your tank, I hope you know you are putting some sugar in it and a lot of water which will seperate it from the gas and do you more harm then good.
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Old Jun 5, 2002 | 08:46 AM
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All gasoline in Ohio is 10% ethanol as well... at least, I've been unable to find any that DOESN'T say "10% Ethanol" on the pump...

Hmm maybe that's how I could get away with 5-6psi fuel pressure before
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Old Jun 5, 2002 | 01:01 PM
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i'm not even sure who sells the ethanol (85%) concoction around here. if i can find it i'm gonna test it out and see how it does. spark advance should work at the 22-24 degree range shouldn't it?

ps, i get jack daniels not the car. its a rx but that doesn't mean it can have my booze.
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Old Jun 5, 2002 | 01:08 PM
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Originally posted by WackyRotary
What morons! Unless they were talking about Methonal which is corsosive to metal they are really dumb. I think there intellegence on fuel properities is highly over estimated.
Add me to the list...I was thinking Methanol, too, which is what the CART boys run...
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