Alcohol Injection & Nitrous? Help
Charlie
Charlie
Charlie
Trending Topics
The Best V8 Stories One Small Block at Time
To clarify are you are talking about using meth for the wet side of the kit, or using meth supplmentation to a n2o/gasoline setup?
Unfortunately in the last thread I discussed this, people misunderstood me and started talking about adding supplemental methanol injection on top of their n2o/gasoline setups. Replacing the gasoline in the wet side with methanol is better by leaps and bounds.
With gasoline, if you run rich you lose power but if you run lean you blow the motor up.
With methanol there is much less power loss from running rich because methanol has an oxygen atom in each molecule. The result of the oxygen atom is an addition to the combustion energy that nearly offsets the power loss of running rich. This is perfect because running rich costs nearly no power.
So, with gasoline you're stuck between a rock and a hard place, deciding if you want to blow it up or make less power. With methanol you dont have to make that decision, you just run it rich and you get the power and the safety.
So, the key to running methanol/n2o is to run the methanol very rich. Not just rich enough to compensate for the N2O, and not just enough so that the N2O/Meth mixture is rich. You need to inject enough excess methanol to cause the N2O/Meth mixture rich, and to also swing the base Air/Gasoline mixture to the rich side.
One thing you need to be aware of, is it takes a serious fuel system to drive the methanol. Because part of the methanol molecule is oxygen, only part of the methanol is useful for richening the mixture (vs gasoline where virtually all of it richens the mixture). This is why stoich for methanol is 6.4:1, vs 14.6:1 for gasoline.
As a result of this, you need twice as much fuel system to pump the methanol. So, if you want a 300hp nitrous system, a typical fuel pump that would provide 300hp worth of gasoline wont cut it.
The pump you want is the Mallory 4140A. (140LPH, compatible with alcohol). The pump that comes with the snow kit will not cut it.
Steve
how could you possibly atomize enough methanol to make this work? and still not puddle in the intake? has it been done, or just theorized upon? i want to know because this is what i want to do
but i was actually thinking of adapting one of nitro dave's direct port systems to spray the meth as the fuel portion of the wet setup. i thought that this would prevent the puddling, just wondered how well it really works putting that much fluid in the combustion chambers.
hope to read lots of opinions
thanks
chris



