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

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 03-28-2009, 06:10 PM   #1 (permalink)
EcoModding Lurker
cottonfox's Avatar
Join Date: Jan 2009
Location: Central Ohio
Posts: 23

April - '09 Chevy Aveo5 LS
90 day: 43 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
gain from rear windshield wiper deletion

So I have a kammback (ish) hatchback. I can see the benefit of removing the front wipers, but is there really anything substantial to gain by removing the back wiper?

That's (basically) my car. It actually doesn't have the weird fin at the top (but you can't really see it in that picture anyway)


  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 03-28-2009, 06:39 PM   #2 (permalink)
Master EcoModder
McTimson's Avatar
Join Date: Sep 2008
Location: Nyack, NY
Posts: 309

BMW - '97 BMW 318ti
Team BMW
90 day: 32.45 mpg (US)
Thanks: 1
Thanked 5 Times in 5 Posts
It doesn't look like it would do anything, if the rear were more sloped, then it would do something, but it doesn't look like air really touches there.
  Reply With Quote
Old 03-28-2009, 08:13 PM   #3 (permalink)
Master EcoModder
Join Date: Dec 2008
Location: Eugene, OR, USA
Posts: 339

Lord Vader - '15 BMW i3 REx
90 day: 35.06 mpg (US)
Thanks: 72
Thanked 152 Times in 112 Posts
Based on the near vertical nature of the back, you could probably glue egg cartons all over the hatch and not see a change to economy.
  Reply With Quote
Old 03-29-2009, 05:21 PM   #4 (permalink)
Ultimate Fail
Cd's Avatar
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,340
Thanks: 2,690
Thanked 937 Times in 556 Posts
What ^ he said.
Even the front wipers have 'barely' any effect on aero.

If you want to do a test to see what the air is doing back there, tape some 1.5" yarn strips on the glass and do some tuft testing .

Here is the wiper on my car at around 50 MPH. The air is just a huge vortex back there.

  Reply With Quote
Reply  Post New Thread

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiper cover test groar Aerodynamics 30 12-14-2019 10:35 PM
Windshield Wiper Cowl / Cover / Blocker Thingy? Sean T. Aerodynamics 42 04-02-2009 02:56 AM
windshield wiper dashboard assembly--HELP!! 90metro Off-Topic Tech 2 03-27-2009 01:48 PM
Screen on windows? bbjsw10 Aerodynamics 13 08-06-2008 10:35 PM
One Windshield Wiper Instead of Two Wayneburg EcoModding Central 22 05-08-2008 02:04 AM

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com