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That makes sense DRW, it also explains how EGR helps reduce NOX emissions (less free oxygen in exhaust to react with nitrogen).
I suppose running ultra lean WILL increase NOX emissions. |
Hmm...so there's all this nitrogen reacting with oxygen...I wonder if there's a way to persuade it to make N2O and separate it out from the rest of the exhaust, then feed it back into the intake.
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I don't know about separating it, but that's more or less what EGR systems do. They mix some exhaust into the intake stream, which replaces some oxygen-rich air in the cylinder. Less oxygen in the mix means reduced NOx emissions.
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Yeah, but that's NOx, not N2O...
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Actually, that isn't how EGR works. EGR works because the extra inert gasses in the chamber absorb energy from combustion and the combustion is cooler because of that(also gives more to expand from heat of combustion). Additionally, the extra gasses take up space in the manifold and reduce vacuum a lot like our WAI are doing.
The actual oxygen/fuel ratio never changes with EGR. All stock EGR cars still run 14.7:1 on freeway cruise which is where EGR is active. |
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so why not compensate the lean with hho??
I'm leaning out my mixture with map enhancement, o2 enhancement, and wai |
HHO won't help. It's a stoich mixture.
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