View Single Post
Old 03-12-2008, 12:33 AM   #15 (permalink)
Batman Junior
MetroMPG's Avatar
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)
Thanks: 3,997
Thanked 6,889 Times in 3,574 Posts
apgrok1 - There are lots of examples of roof extensions (on hatchbacks/wagons) and trunklid lip extensions on sedans which reduce drag. Some of them also happen to reduce lift at the same time. Yet others reduce lift at the expense of higher drag.

adbso - I think you're right in that the goal of the Mitsu engineers was to get more clean airflow to the decklid spoiler on that car. That said, if the spoiler wasn't there, the net effect of the VG's would have been to very slightly improve Cd and reduce fuel consumption.
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
  Reply With Quote