Quote:
Originally Posted by JanGeo
I gotta believe that you are forcing an extra lean condition that the O2 sensor feelback can not compensate for and are producing a lot more NO2 emissions as a result. Pretty impressive results however.
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I have no data based reason to disagree with you. Another known phenomena is HCCI Homogenous Charge Compression Ignition. It is very difficult to control but Honda has managed to do so for some years now on 2-stroke scooters sold external to the US. They call it Active Radical Combustion. It is associated with high EGR rates, but that is a real stretch in this case. That is very unlikely. Major corporations such as Catepillar are spending large sums trying to control HCCI but the efficiency gains are in line with what I am experiencing. Here is a definition. This actually is associated with low levels of NO.
http://en.wikipedia.org/wiki/HCCI
Ernie