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Tractor Talk Discussion Forum

Re: Water-Methanol boost

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Jon Hagen

03-19-2008 16:38:17




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Water injection to allow more power with low octane fuel was in use in the 1920's. A good example would be a steel wheel, flywheel start D John Deere feeding water from the over size top radiator tank into the intake so the engine could pull at full power on low octane distillate fuel.

Over the last 30 years or so I have seen bubbler type alcohol / water injectors that evaporate a bit of Water / alcohol mix and introduce it into the intake manifold of the engine. In theory the evaporating mix will lower the intake air temp for a dense air mix, plus making the fuel air mix a little less apt to detonate with high compression and more ignition advance.

Any of you remember the Olds 215 turbocharged engine of the early 60's ? They used a water / alcohol injection system to fight full throttle detonation, when the engine was at max turbo boost. The fluid used was an alcohol / water mix, much like modern windsheild washer fluid which would not freeze in cold weather

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Gene Davis (Ga.)

03-19-2008 19:13:56




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 Re: Water-Methanol boost in reply to Jon Hagen, 03-19-2008 16:38:17  
Hot Rod magazine hadan article on building a system for use like this. They used a windshield washer pump set up with a vacuum operated switch I think and a rheostat to control the delivery rate into a nozzle made from a windshield washer nozzle pinched down somehow.



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Methanol

03-19-2008 18:00:08




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 Re: Water-Methanol boost in reply to Jon Hagen, 03-19-2008 16:38:17  
Methanol burns a lot cooler and makes better HP. It also makes a high performance engine last longer because of running cooler. That's why sprint cars, drag cars and monster trucks, etc. use it. Aircraft used technology that was way ahead of other industries. Especially in regards to engines.



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