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Old 08-13-2015, 06:50 PM   #1
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Default Catalytic Converter Shootout

Great article from 2008 was just posted.

Catalytic Converter Face-Off | Articles |
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Old 08-13-2015, 07:18 PM   #2
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Interesting, it seems to basically only affect CO and idle HC.

Thinking back, I think my old honda didn't actually have a working cat. Its hydrocarbons only dropped to something semi-normal around 1100 rpms. I got through smog in CA by fiddling with my idle to find a window where the RPM and HC were both barely legal.
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Old 08-16-2015, 01:37 PM   #3
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I wish they would have measured backpressure with the different cats.

Also, that kind of emission test underrepresents changes in emissions because the engine is warmed up.
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Old 08-16-2015, 07:00 PM   #4
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I was kinda hoping to see videos of somebody shooting holes in catalytic converters
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