Thread: high flow exhaust = 3-5% mpg gain?
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Old 04-28-2011, 09:57 AM   #40 (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
Team Honda
90 day: 66.42 mpg (US)

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Quote:
Originally Posted by robertwb70 View Post
I ran some numbers through one of the on-line calculators before my last exhaust mods to my Geo Metro, results are posted here- Robertwb70: Exhaust size
I read your good short post and your fuel log. It looks like you might have experienced a dip in FE after the new pipe, but maybe not. Clear it up for me? If you did install the pipe you estimated... any indication of how it has performed?
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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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