Thread: What is a "rear" or "secondary" catalytic converter for?
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Old 06-06-2018, 08:37 PM   #2 (permalink)
California98Civic
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Black and Green - '98 Honda Civic DX Coupe
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Took an hour to do some further research and am adding some basic info.

Here comes the "engineering explained" smartypants:


It does not really answer the thread question about secondary catalyst function, but it is a high quality explanation.

And this good article: How Catalytic Converters Work And Why Racers Should Play Clean | Speed Academy ... It also does not really answer the thread question, but it is otherwise interesting and thouhtful about the technology.
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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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