Forced Induction Supercharger/Turbocharger

alcohol injection setting

Old Feb 4, 2006 | 01:14 AM
  #16  
markinkc69z's Avatar
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Re: alcohol injection setting

He is the engineer that designed the product and is very helpful, but yes sometimes his explanations need explanations.
Old Feb 4, 2006 | 08:33 AM
  #17  
Kevin Blown 95 TA's Avatar
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Re: alcohol injection setting

Mark - can you answer any of my questions in #14?
Old Feb 4, 2006 | 09:00 AM
  #18  
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Re: alcohol injection setting

Originally Posted by Kevin Blown 95 TA
SMOKINZ - sorry if I misled you - i don't mean to post bad information. http://www.innovatemotorsports.com/f...ead.php?t=1860
You didn't. I have a tech Edge wideband setup and am well aware of how it works with Lamda and the gasoline AFR readout.
Old Feb 4, 2006 | 03:57 PM
  #19  
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Re: alcohol injection setting

Originally Posted by Kevin Blown 95 TA
Mark - can you answer any of my questions in #14?
If you don't change anything in the original fuel map injecting methanol will richen the mixture. If methanol hits the massair meter the mixture may richen even more. Now the most effective way, and most dangerous way to inject methanol is to face the injector into the airflow. This will help distribution and affect the most amount of your charge. But a backfire may turn your intake plumbing into a pipe bomb. You are most likely using an intake designed for dry flow so any kind of liquid injection is a toss us as to where it ends up. The idea is that the methanol gets vapoized which is what cools the charge so there should not be an excess of liquid in the ports.
Leaning the gas side of your tuneup will optimize your power production as you experiment with different meth flowrates. This is where you could get in big trouble as you must be very confident your meth system is always full and flowing under load. It is for this reason I'm not a huge fan of methanol injection kits as a replacement for intercooling. Most don't hold more than a gallon of liquid.

Back to the AFR thing. Methanol at stoic takes more than 2 times as much fuel as gasoline. So if you lean the gas map your meth delivery will need to be at least twice as much to make up for your change.
Old Feb 4, 2006 | 06:08 PM
  #20  
Kevin Blown 95 TA's Avatar
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Re: alcohol injection setting

Originally Posted by markinkc69z
...Now the most effective way, and most dangerous way to inject methanol is to face the injector into the airflow...
Not sure what you are saying here. I have the nozzle 90 deg to the direction of air flow midpoint between the SC discharge and TB. I would have it closer to the TB, but the Vortech elbow has a divider in it so it is a few inches before that. This is how the directions say to install it. I have bought a second small nozzle, so i am going to switch to two small nozzles instead of one larger one to get it atomized as much as possible.
Old Feb 4, 2006 | 09:36 PM
  #21  
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Re: alcohol injection setting

I am saying that it works well to face the nozzle into the airstream 180 deg away from the throttle body.
Old Feb 5, 2006 | 01:17 PM
  #22  
Kevin Blown 95 TA's Avatar
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Re: alcohol injection setting

I see what you're saying, but I don't see how I could put a nozzle facing away from the TB on my setup without fancy plumbing.
Old Feb 5, 2006 | 06:49 PM
  #23  
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Re: alcohol injection setting

I stand by my post. The relationship of Lambda to AFR is locked by the programming of the unit at time of use. You may still tune to your familiar AFR numbers with the addition of another fuel. While the fuel may change your AFR you may still tune back to your target AFR. On units such as the LM1 you can change the programming to a different fuel type which will change the numbers you're looking at, but its only changing the display. While the introduction of methanol will change actual AFR by weight, the number you use to tune by can stay the same.

In other words when you introduce another fuel such as methanol your AFR display is no longer a true representation of true AFR, but it is an accurate display of lambda displayed in AFR units.
Old Feb 5, 2006 | 10:13 PM
  #24  
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Re: alcohol injection setting

Originally Posted by markinkc69z
I stand by my post. The relationship of Lambda to AFR is locked by the programming of the unit at time of use. You may still tune to your familiar AFR numbers with the addition of another fuel. While the fuel may change your AFR you may still tune back to your target AFR. On units such as the LM1 you can change the programming to a different fuel type which will change the numbers you're looking at, but its only changing the display. While the introduction of methanol will change actual AFR by weight, the number you use to tune by can stay the same.

In other words when you introduce another fuel such as methanol your AFR display is no longer a true representation of true AFR, but it is an accurate display of lambda displayed in AFR units.
This is absolutely correct.
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