Quote:
Originally Posted by FRS Justin
OK I see where your coming from and its half correct and half wrong, I will explain my view on the other half I feel is wrong.
Nitrous is the F/I during the molecular level its at when it enters the cylinder in a stable form. When it vaporizes, nitrous oxide provides a significant cooling effect on the intake air. When you reduce the intake air temperature, you increase the air's density, and this provides even more oxygen inside the cylinder. creating a F/I condition.
Chemical F/I
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So does Ethanol, when it vaporizes, as does gasoline.
But, that's not how a nitrous system works. Atmospheric air has about a 21% oxygen concentration. Nitrous Oxide, on the other hand, breaks down into 33% oxygen concentration.
Furthermore, when Nitrous Oxide decomposes, the reaction is exothermic. In other words, when (2)N2O decomposes into 2N2 + O2, it ADDS heat to the intake charge (technically already under compression in the cylinder, and igniting). You confuse spraying liquid N2O into the intake tract, which cools the intake charge from evaporation, the same way fuel injection does.
The reason N2O adds power, is because it displaces atmospheric air with a molecule of higher oxygen content, which can be readily broken down to O2, and then combusted with fuel.