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Old 07-03-2008, 03:48 PM   #2 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,459

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

MPGiata - '90 Mazda Miata
90 day: 55.97 mpg (US)

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

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 67.41 mpg (US)
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The new version will also be slightly longer than the first. I've checked out the rear view mirror, and on a flat road, can still (just) see the horizon, below the lip of the extension.

The main reason I want to tuft test it is because even though I'm following the established curve, the "roof line" angle I measure through the end of the cardboard (though it's slightly curved, not flat) is 14.5 degrees. That's about the same as the rear roofline of the Audi A2 (Cd 0.25), but several degrees more than the Insight (Cd 0.25) or Prius (Cd 0.26) - about 12 degrees each. (Though without its rear spoiler, the Prius is about 14.)

I want to make sure there's still attached flow at the end before putting in the hours to do the final version.
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

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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