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Old 03-30-2014, 10:54 AM   #8 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530

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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Nice work on the Cavalier front bumper. Needs a dedicated thread! I'm certain there are other Cavalier owners who would like to know what you did to the car and the results. But they won't find it buried in a Firefly thread!

A dedicated thread on your wiper mod would be gold, too!

Quote:
Originally Posted by rednic79 View Post
yeah that's a great idea. I also noticed that the volt has a similar 'edge' going for it. I think I read a post about it on here somewhere as to where / at what angle such a hump should be placed. any thoughts? I think one guy had said to put it at the point just before there was flow separation....
Yeah - and the Accord hybrid, Camry hybrid, Prius... they're all doing sharp rear bumper corners.

I wouldn't call it a "hump"... I would just project the accepted side taper back to the point where you want to cut it off and make a 90 degree corner rather than a big radius to the rear of 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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