Nitromethane and alcohol:

McRat

Diesel Hotrodder
Aug 2, 2006
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Are "oxygenating" fuels. What does that mean?

Normal diesel and gasoline has long molecules of carbon chains with hydrogen atoms saturating all the open electron slots. There is no oxygen in it.

Alcohol is carbon + hydrogen molecule with an OH (oxygen+hydrogen) tail stuck on it. It is partially "oxygenated", since it takes less oxygen to burn than diesel or gas. It carries it's own oxygen with it. You can burn twice as much alcohol with a given amount of air as you can diesel. It burns easy since there isn't a heavy bond on the tail.

Nitromethane has a carbon atom, 3 hydrogens, then has a nitrogen+ 2 oxygen atom tail on it. So it is very heavily oxygenated for a fuel. But it has a very stout nitrogen bond gluing the tail on, so it is hard to burn. When it does light, you can burn up to 8 times as much in the same air as diesel.

It appears that running nitromethane (or related oxygenated compounds) in diesel fuel has been going on for quite some time. The "signature" is sometimes orange flames erupt in the exhaust when not all the nitro burns and the engine is overfueled. Since there is little oxygen left in the exhaust, the unburned nitro supplies the oxygen to help burn the extra fuel.
 
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McRat

Diesel Hotrodder
Aug 2, 2006
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Are you suggesting a small can of model airplane fuel in every tank?
Model fuel has a large percentage of castor oil, so I don't know if it would gum up the works.

Nitromethane would be a great help to those who are grossly overfueled, and cannot get enough air.

That means Cummins 12v. I'm sure by now everyone has seen Cummins engines that are glowing orange out the exhaust.

I wonder if this explains why they don't just run nitrous oxide. Perhaps nitrous is not compatible with nitromethane? Dunno. What I do know is that the Dodge boys will take every possible advantage, but pretend like they are running otherwise. So big claims of #2 only Dodge power might not be what it appears. They are just using a form of liquid nitrous.
 

McRat

Diesel Hotrodder
Aug 2, 2006
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A year or two ago I bought some various fuels for testing, including nitromethane. But I never got a chance to test any of them. Since most rulebooks forbid running anything but "pump diesel" I saw no burning need.

Hopefully this winter I can finally answer the question.
 

McRat

Diesel Hotrodder
Aug 2, 2006
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Something to point out:

Nitromethane is corrosive. Think of it like salt water. If you do play with it, do it from a separate tank, then run pure diesel afterwards. Do not let it sit in your fuel system.
 

jbarker@bankspower

<Worlds 2nd Fastest Dmax
Mar 24, 2008
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Strange question, has anybody ever tried using the model fuel by injecting it through a setup similar to a water/meth injection system? The basic components of the fuel are (normaly) castor oil, some synthetic oil, alcohol, and nitro. They are sold in 0% all the way up to 60% nitro content by volume (depending on the vendor).
 

Mike L.

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I don't think the nitro mixes very well with gasoline and have no idea how it mixes with diesel fuel. Many years ago I put a couple of cans of model airplane fuel in a '64 Plymouth Fury 383 ci that ran consistant 13,80's and took the car to the strip with my buddy. We poured it in the tank after we got to the strip. we had about half tank of fuel and after pouring in the cans we shook the back of the car up and down to make sure it mixed well. We then made a couple of passes with no difference. Still at 13.80. We then left for home driving back on the 405 freeway from Long Beach at about 60 mph when the stupid engine comes alive and then we notice quite a difference in power. Then the power left as quick as it came.
 

Mike L.

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We 2 cans of 20% model fuel in my buddies 1970 motorcycle once, didnt seem to do much but smoke more and burn our eyes when we rode behind him lol.

Since we were illiterate at age 17 I cannot tell you what our percentage of nitro was in the cans we used. :rolleyes::p I saw the word nitro and felt I could stop reading at that point. Yes I knew it all at 17. :rofl:
 

MMLMM

Tunergeek
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I also remember that that "NOS" brand octane boot, they had a performance formula that had some nitro in it;)


LOL, what a joke. I remember kids buying this in High School
Product Description
NOS performance for the serious enthusiast. Developed to increase octane effect up to 7 points. Blended with MMT and our performance-enhancing Powertane along with Nitromethane and unique lubricants specially developed for high performance engines. Suggested Applications: Recommended for racing combustion engines including carbureted fuel injected turbo and super charged. Excellent smoke suppressant for 2 cycle engines Recommended for high-performance engines plus marine industrial lawn farm and recreational. NOT recommended for use on diesel engines of any type.:D
 

05smoker

I'm officially done!
Mar 30, 2007
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Need to talk to some old school diesel tractor pullers. I'm sure they know what mixes and what doesn't (and what goes kaboom).
 

vortecfcar

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Jun 28, 2007
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Maybe you should post a link to this in the 'borrowed time' thread. Those guys might be more willing to experiment. :angel:

Nick
 

LB7Diesel

Oh Boy!
Sep 3, 2006
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Don't be a pussy like us. Put some in your truck and report. :baby::D

I've mentioned Nitro before. That 80% Sh!t we run is some bad stuff, I'm waiting for my confidence to build to experiament. There's something to be had of the little Mighty Max can:D

Need to talk to some old school diesel tractor pullers. I'm sure they know what mixes and what doesn't (and what goes kaboom).

I've wanted to run into the same guy!