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Old 04-24-2015, 10:03 PM   #58 (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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Quote:
Originally Posted by Cd View Post
I think I can understand why there is the tendency to create a boat-tail that is too 'steep'.
One part of our brains is saying " keep it on the template curve", while the other is saying " If I can just get it to taper in just a little bit more, my wake will be so much smaller ! "
Funny thing is: the first two that I made were COMPLETELY eyeballed, and way off the template, yet had great results (10-15% at similar testing speeds). This one I consciously kept close to the template, and it made the smallest improvement.

Though the previous two were on hatchbacks, so there was more room for improvement.
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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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