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Old 08-15-2011, 11:26 AM   #7 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

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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where to get BSFC map?

dcb,

How did you get these maps? Would I go to a dealer? A mechanic? The internet hunt has never turned up results for me. I rely on PaleMelanesian's extensive experience to identify a sweet spot. I'm confident it is really good... sure would like to see a map. Any tips?


Quote:
Originally Posted by dcb View Post
This is one place where bsfc charts come in handy, they tell you the most efficient operating parameters for your engine. Arag, I would think 4000 is a little high, dunno.

To extract the most power from a given amount of fuel in this example (02 TDI), I want to center my shifts on 1750rpm and have the throttle wide open.


On my saturn I want to center the shifts at about 2500rpm and maintain about 70% throttle.


From the field folks seem to do well with a slightly less aggressive acceleration profile, and of course stop accelerating early to avoid mashing the brakes.
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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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