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Old 03-08-2012, 08:19 AM   #9 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Congrats on getting hooked.

Driving for best economy is a very similar kind of fun as getting a drag time slip or lap time report: feedback for tweaking your technique & vehicle. (That's why you should really work out some kind of fuel consumption instrumentation for instant feedback.)

Quote:
Originally Posted by wheel_of_steel View Post
This is based on what seems to be quite a common dilemma:
-low load, righ rpm driving or;
-high load, low rpm driving?
I don't think you'll find anyone here advocating for high RPM driving (not clear whether you're wondering about steady state cruising and/or acceleration).

For cruising, the lower the RPM, the better.

Even under high load acceleration, the best fuel consumption will be found at low/moderate RPM managed by short-shifting.

See the BSFC maps for illustration, if you haven't already: http://ecomodder.com/forum/showthrea...-got-1466.html
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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