N2O Tech Discussion for the use of Nitrous Oxide

What would happen if???

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Old Jul 22, 2005 | 08:17 PM
  #1  
L31stang's Avatar
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What would happen if???

I mounted my N2O nozzle down under the cover piece for my SLP cold air so the nozzle was tottaly hidden? The only issue I can think of is nitrous and fuel going through the air flow sensor, what problems would this cause? It is a 94 Z28 M6
Old Jul 22, 2005 | 08:47 PM
  #2  
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Re: What would happen if???

Not a good idea. A MAF was never ment to flow fuel, more then likely the fuel will damage the coefficient resistor (there is a relay to burn impurities off of the hot wire, but with that much fuel being sprayed on it I wouldn't expect it to last very long). If you are looking for a kit that you can hide before the MAF I would look into a dry kit.

Matt

Originally Posted by L31stang
I mounted my N2O nozzle down under the cover piece for my SLP cold air so the nozzle was tottaly hidden? The only issue I can think of is nitrous and fuel going through the air flow sensor, what problems would this cause? It is a 94 Z28 M6

Last edited by HarrisSpeedWorks; Jul 22, 2005 at 08:50 PM.
Old Jul 22, 2005 | 11:01 PM
  #3  
L31stang's Avatar
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Re: What would happen if???

Don't you think that the cold N2O hitting the hot wire would cause it to run rich up top too? It would cool the hot wire more making the computer think that there was an excess of air coming in right?
Old Jul 22, 2005 | 11:47 PM
  #4  
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Re: What would happen if???

The LS1's run dry nitrous through the MAF's with no problems, but the explanation is that the LS1 PCM is a much faster processer than the LT1 used. And a couple of people have claimed to spray dry systems successfully through the MAF on the LT1, but they don't seem to post here any more.

But that's "dry" N2O.... running a wet system would totally mess up the MAF's output signal. It calculates the mass air flow by first measuring the loss of heat from the wire, then uses the known specific heat of air to calculate the mass air flow rate. Having a mixture of air, fuel and nitrous touching the wire would invalidate the entire calculation, and throw the MAF totally out of calibration.

There is no "burn-off" applied to the 94 and newer MAF's. You're thinking of the Bosch MAF's used in the 3rd Gens.

Last edited by Injuneer; Jul 22, 2005 at 11:52 PM.
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