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Dating back to the CVCC civics, killed off by NOX regulations. Its sad that regulations drive certain technologies from the market.
Many of the early systems in the early to mid seventies didn't need catalytic converters.
Not a criticism of emissions regulations from one who remembers what the air used to smell like in this country in the bad old days.
It Just always seemed to me that the basic design should reduce emissions through efficiency with additional treatment and development from the basic premise of best efficiency.
I wonder where we could be today with the last decade of emissions controls and evolution if lean burn had not been regulated out of existence.
Hope to see HCCI become the standard of the future. That was where lean burn was headed until the rug was pulled out from under the technology.
regards
Mech
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