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Old 02-11-2012, 11:43 PM   #122 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,092

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Originally Posted by SentraSE-R View Post
I'll find out tomorrow. I suspect there will be no difference, since my 25-40 mph 4th gear P:G ratio is ~ 1:3, and my 18-32 mph 3rd gear P:G ratio is 1:5. My guess is the cat will cool below its light-up temperature with 3-5 times to cool after every pulse.
The DFCO test will be interesting. It would also be great if you still had your grill blocks in place, since they would help protect the cat from cooling. If today's test suggests that the most rigorous EOC P&G will keep the CAT from lighting over short journeys, where would the balance be? Put another way, the test could be to see how much EOC P&G you can "get away with" and still keep the CAT lit.
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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