Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-19-2008, 11:43 PM   #1 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
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)
Thanks: 4,078
Thanked 6,978 Times in 3,613 Posts
Calculated: frontal area of a '95-01 Geo Metro

I finally borrowed a better digital camera than mine and used the zoom photo/Photoshop method of calculating frontal area:



Except the image I was actually working with was 1545x1127 pixels.

My results: 1.81 square meters / 19.45 square feet

This is pretty darn close to the Geo figures of 1.85 m^2 / 20 ft^2 listed here: http://www.mayfco.com/geo.htm (which are uncredited, and tainted by the author's admission that many of the figures on his site are estimates).

Of course I only have one mirror, and much of the time the single mirror is folded flat, so I'll prep a few more variations of A for use in my calculations.

Attached Thumbnails
Click image for larger version

Name:	frontal-area-good-silhouett.gif
Views:	395
Size:	2.2 KB
ID:	763  
__________________
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
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-24-2008, 06:20 PM   #2 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,268
Thanks: 24,393
Thanked 7,360 Times in 4,760 Posts
PHOTOSHOP never ceases to amaze me!!!!!!!!!!!!! That terrific Darin!
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 07-24-2008, 06:22 PM   #3 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,268
Thanks: 24,393
Thanked 7,360 Times in 4,760 Posts
P.S. Maybe this should be in the "sticky",as many members have asked about frontal area.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 07-24-2008, 06:24 PM   #4 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,268
Thanks: 24,393
Thanked 7,360 Times in 4,760 Posts
calculator

Yeah Darin,I think this one should be in the "sticky".

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
CdA list Daox Aerodynamics 206 10-25-2023 07:32 PM
DIY Frontal Area Measurement newtonsfirstlaw DIY / How-to 5 11-22-2015 01:46 PM
Different ways to measure/calculate frontal area (A) MetroMPG Aerodynamics 27 02-08-2015 02:00 AM
Geo Metro Conversion - Standard to XFI SirKeats EcoModding Central 16 10-22-2010 02:44 PM
CL: Mechanics Special 94 Geo Metro Red For Sale 4 04-09-2008 02:48 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com