Thread: 18:1 AFR is "cleaner"?
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Old 05-19-2020, 02:13 PM   #18 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by rmay635703 View Post
The cat should burn off the hc and co using the excess NOx
Would that be true even if the lean mixture causes cooling of the catalyst to a less efficient temp? Maybe that's what you are saying. Not certain.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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