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Old 12-02-2009, 04:59 PM   #179 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,515

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

MPGiata - '90 Mazda Miata
90 day: 52.71 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: 52.48 mpg (US)
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rear wheel mini boat tail tested

Lots of giggling from a gaggle of school kids going past while I was kludging this together.

Comment from one of them: "are you making a dragon? It needs wings!"



Above: radiused the leading edge of the wheel boat tail.





I realize it's not very practical, in terms of hitting stuff. But wanted to go big or go home.



Surprise, surprise, attached flow behind the wheel (at least on the outside - didn't capture the inside).

You can compare this to the image a few posts up, without it. Comparing the videos, I'd like to say there's less turbulence on the lower tufts now. It's only subjective, but logic says this should help.

One thing I can say for sure: this boat tail business is bad for the economy. There's a house construction site on the road I've been using, and when I go past everyone stops working to stare at the car!
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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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The Following 5 Users Say Thank You to MetroMPG For This Useful Post:
3-Wheeler (12-02-2009), Cd (12-04-2009), landsailor (06-04-2011), NeilBlanchard (01-07-2011), TEiN (12-03-2009)