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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-05-2007, 03:53 AM   #1 (permalink)
Master EcoModder
 
Peakster's Avatar
 
Join Date: Dec 2007
Location: Regina SK Canada
Posts: 407

Red Jeep Patriot - '07 Jeep Patriot
90 day: 25.14 mpg (US)

Beige Ford Ranger - '95 Ford Ranger XLE
Thanks: 0
Thanked 2 Times in 2 Posts
Arrow Video: Fuel Economy Decrease with Opened Windows

It's a timeless question. Is it more fuel efficient to run air conditioning in a car on the highway, of have the windows open at speed? Well I don't have air conditioning in my car, but amazingly the Geo comes standard with opening windows!

See how much of a fuel economy loss occurs with opened windows at 50 miles per hour (I apologize in advance about my hyperness in the video):



Feel free to discuss.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-26-2008, 01:42 AM   #2 (permalink)
EcoModding Apprentice
 
OfficeLinebacker's Avatar
 
Join Date: Apr 2008
Location: Maryland
Posts: 113
Thanks: 0
Thanked 1 Time in 1 Post
LMAO@ the end!

"What the bloody hell?!?!?"

It seems that if you're going to open one window, you might as well open both.

I have a sedan and I would like to test all 4 down.
  Reply With Quote
Old 04-26-2008, 02:15 AM   #3 (permalink)
Awesomeness personified
 
AndrewJ's Avatar
 
Join Date: Dec 2007
Location: Columbia, MO
Posts: 642

Harold - '94 Honda Civic CX
90 day: 54.51 mpg (US)

Margot - '08 Surly Big Dummy
Thanks: 0
Thanked 27 Times in 17 Posts
Send a message via AIM to AndrewJ
I've noticed no significant difference in coastdown tests with windows up vs. down.

Kinda surprising, but you can't really argue with the numbers...
__________________
"I got 350 heads on a 305 engine. I get 10 miles to the gallon. I ain't got no good intentions." - The Drive By Truckers.

  Reply With Quote
Old 04-26-2008, 02:30 AM   #4 (permalink)
Future EV Owner
 
Join Date: Mar 2008
Location: Sussex Wisconsin
Posts: 674

Wannabe - '05 Honda Civic LX
90 day: 40.53 mpg (US)
Thanks: 0
Thanked 4 Times in 4 Posts
I'd like to see a repeat of the experiment. Being passed by a few big cars can make a difference and really throw off the results.
__________________
  Reply With Quote
Old 04-26-2008, 05:51 PM   #5 (permalink)
Master EcoModder
 
Join Date: Mar 2008
Location: USA
Posts: 560
Thanks: 1
Thanked 67 Times in 53 Posts
Quote:
Originally Posted by Arminius View Post
I'd like to see a repeat of the experiment. Being passed by a few big cars can make a difference and really throw off the results.
Yeah, the turbulent wake and shock wave of those other cars would make some kind of difference. That's why ducks fly in V formation, after all.
  Reply With Quote
Old 04-26-2008, 10:31 PM   #6 (permalink)
Pickup Driver *gasp!*
 
Achtung's Avatar
 
Join Date: Mar 2008
Location: AB, Canada
Posts: 21

Charlie - '97 Chevrolet 1500 Pickup W/T
90 day: 24.14 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
Peakster, what are we going to do without your videos when you live without a car?
  Reply With Quote
Old 04-26-2008, 10:50 PM   #7 (permalink)
Future EV Owner
 
Join Date: Mar 2008
Location: Sussex Wisconsin
Posts: 674

Wannabe - '05 Honda Civic LX
90 day: 40.53 mpg (US)
Thanks: 0
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by Achtung View Post
Peakster, what are we going to do without your videos when you live without a car?
He will have to ride a bike inside a cardboard box to simulate it. We will weigh him before and after each experiment.
__________________
  Reply With Quote
Old 04-26-2008, 11:06 PM   #8 (permalink)
Pickup Driver *gasp!*
 
Achtung's Avatar
 
Join Date: Mar 2008
Location: AB, Canada
Posts: 21

Charlie - '97 Chevrolet 1500 Pickup W/T
90 day: 24.14 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
Hahaha.... good answer. I like it.
  Reply With Quote
Old 04-26-2008, 11:46 PM   #9 (permalink)
Master EcoModder
 
Christopher Jordan's Avatar
 
Join Date: Jan 2008
Location: Santa Cruz, CA.
Posts: 858

White Whale - '03 Chrysler Town & Country mini van all white
Thanks: 57
Thanked 43 Times in 38 Posts
Quote:
Originally Posted by Arminius View Post
He will have to ride a bike inside a cardboard box
Maybe canvas (right- former "Dragon") or fiberglass/kevlar (left- E-Pod): w/ windows closed.

countersTrike
Attached Thumbnails
Click image for larger version

Name:	Pod:Velokit sml..jpg
Views:	46
Size:	9.5 KB
ID:	641  
  Reply With Quote
Old 04-27-2008, 01:35 AM   #10 (permalink)
Master EcoModder
 
Peakster's Avatar
 
Join Date: Dec 2007
Location: Regina SK Canada
Posts: 407

Red Jeep Patriot - '07 Jeep Patriot
90 day: 25.14 mpg (US)

Beige Ford Ranger - '95 Ford Ranger XLE
Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by Achtung View Post
Peakster, what are we going to do without your videos when you live without a car?
Quote:
Originally Posted by Arminius View Post
He will have to ride a bike inside a cardboard box to simulate it. We will weigh him before and after each experiment.
Oh, don't worry. I'll thinking of something to do (or build?) without a car this summer The quietness from me is eerie, isn't it?



EDIT: By the way, the "Acetone Revealed" experiment video has exploded in view counts just this past few week or so on YouTube. Something like 200 hits a day (and usually a comment every day or two). I've thought about finding a ScanGauge again and redoing the experiment with my dad's Intrepid just to tie up some loose ends with the idea.


Last edited by Peakster; 05-09-2008 at 07:56 AM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com