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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-22-2010, 08:19 PM   #1 (permalink)
Master EcoModder
 
AeroModder's Avatar
 
Join Date: Jan 2010
Location: Oregon
Posts: 471

Tank - '96 Ford Aspire 4 door
Team Ford
90 day: 46.75 mpg (US)
Thanks: 15
Thanked 65 Times in 48 Posts
Flat Bonneville-type spoiler

So we stop going off-topic in the Sedan-Kamm thread, I figured a new one should be made.

I went ahead and fitted my car with a 15" trunklid extension, modeled after the Fusion.



The trunk and spoiler have a 2-3* downward angle, and the sides of the spoiler continue the 3-4* boattailing of the trunk. The vertical end plates meet the corners of the car at about a 10* angle. The roofline meets the end of the spoiler at about a 15-16* angle.

We'll see if this shows any noticeable effect.

__________________
In Reason we Trust

Last edited by AeroModder; 10-22-2010 at 08:37 PM..
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-22-2010, 08:47 PM   #2 (permalink)
Pokémoderator
 
cfg83's Avatar
 
Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
Thanks: 439
Thanked 532 Times in 358 Posts
AeroModder -

Good idea to make this a separate thread. We've talked about this spoiler in the past and speculated its downforce versus virtual-boattail versus hide-the-parachute functionality.

I am really really really really hoping the virtual-boattail wins because this mod looks cool.

CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 10-22-2010, 11:51 PM   #3 (permalink)
EcoModding Lurker
 
Join Date: Jun 2009
Location: SE Michigan
Posts: 66

Moostange - '07 Ford Mustang GT
Last 3: 21.8 mpg (US)
Thanks: 1
Thanked 6 Times in 6 Posts
While the trunk extension will at least look 'race inspired', I think getting one for the underbody/bumper may help as well. Maybe a square with rounded corners. Have another one inside of it, that sticks out further, and see if we can duplicate the effects of a boattail with a different shape!
  Reply With Quote
Old 10-23-2010, 12:57 AM   #4 (permalink)
EcoModding Apprentice
 
3dplane's Avatar
 
Join Date: May 2008
Location: Florida
Posts: 158

14 Mirage - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 68.74 mpg (US)
Thanks: 35
Thanked 107 Times in 38 Posts
@AeroModder!
Now I'm curious too how that will perform! I hope you can do some coastdown tests!
Looking at your pic I can't stop to imagine a visual on people's face whom are wondering - what the **** is all that on that car? - : )
It would be pretty cool though if it showed a positive difference in drag reduction!

Barna
__________________

  Reply With Quote
Old 10-23-2010, 09:07 PM   #5 (permalink)
Wiki Mod
 
Weather Spotter's Avatar
 
Join Date: Nov 2009
Location: Midland MI, USA
Posts: 2,042

Max - '14 Ford C-Max SEL
Thanks: 228
Thanked 304 Times in 210 Posts
Data for the wiki would be nice. If it works I will make a new Mod listing for it, and your pic goes up first
__________________
  Reply With Quote
Old 10-23-2010, 09:48 PM   #6 (permalink)
Master EcoModder
 
AeroModder's Avatar
 
Join Date: Jan 2010
Location: Oregon
Posts: 471

Tank - '96 Ford Aspire 4 door
Team Ford
90 day: 46.75 mpg (US)
Thanks: 15
Thanked 65 Times in 48 Posts
My established coast testing starts at 45 MPH and compares speeds at set points (road signs). I'll see if there's any improvement, but I'm not sure if it'll show up at lower speeds like this. I've pretty much hit a plateau some time ago and can't get any better coasting.

Otherwise, the only other indicator is tank MPG, and that isn't the greatest measurement of single mods. It'll be at least a week before I get those numbers.
__________________
In Reason we Trust
  Reply With Quote
Old 10-23-2010, 09:55 PM   #7 (permalink)
Wiki Mod
 
Weather Spotter's Avatar
 
Join Date: Nov 2009
Location: Midland MI, USA
Posts: 2,042

Max - '14 Ford C-Max SEL
Thanks: 228
Thanked 304 Times in 210 Posts
When ever you get the data will be fine. I take what I can get
__________________
  Reply With Quote
Old 10-24-2010, 10:56 AM   #8 (permalink)
Master EcoModder
 
AeroModder's Avatar
 
Join Date: Jan 2010
Location: Oregon
Posts: 471

Tank - '96 Ford Aspire 4 door
Team Ford
90 day: 46.75 mpg (US)
Thanks: 15
Thanked 65 Times in 48 Posts
The design seems pretty structurally sound. It's been subjected to gusty sidewinds and plenty of rain overnight and it doesn't look phased. I added a couple supports before the storm, though.

Hasn't been driven yet, but I'll be getting plenty of testing on Monday, including some freeway driving.
__________________
In Reason we Trust
  Reply With Quote
Old 10-25-2010, 11:32 PM   #9 (permalink)
Master EcoModder
 
AeroModder's Avatar
 
Join Date: Jan 2010
Location: Oregon
Posts: 471

Tank - '96 Ford Aspire 4 door
Team Ford
90 day: 46.75 mpg (US)
Thanks: 15
Thanked 65 Times in 48 Posts
Update: I'll have to wait until next tank for any decent results. This tank is already shot from crosswinds and lots of rain, and bumper-to-bumper traffic for 3 miles. I already went past a quarter tank and didn't even cover 80 miles. I'll be lucky to see 26 on this one.
__________________
In Reason we Trust
  Reply With Quote
Old 10-26-2010, 01:33 AM   #10 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: New Zealand
Posts: 119

Laura the Lancer - '81 Mitsibishi lancer LX
Thanks: 0
Thanked 28 Times in 8 Posts
this is going to be an interesting test, i think you will see an improvement in FE but only a couple of miles per galleon (anythings better than nothing though)

thats my guess and im sticking with it

goodluck

  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Report any web site bugs here Peakster Forum News & Feedback 609 04-22-2017 12:34 AM
aero-mods ( installment#8-INDUCED-DRAG(spoilers/lips/flaps) aerohead Aerodynamics 12 12-04-2012 07:19 PM
Personality types dcb The Lounge 14 06-27-2012 12:18 AM
Spoiler hypothesis AeroModder Aerodynamics 18 10-09-2010 02:33 PM
Spoiler based on kamm-back dimensions? cfg83 Aerodynamics 14 06-20-2009 04:23 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