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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 07-27-2008, 06:18 PM   #1 (permalink)
Banned
 
Join Date: Feb 2008
Location: california
Posts: 1,329
Thanks: 24
Thanked 161 Times in 107 Posts
Volvo 850 coroplast wonder

I picked up an 8x4 foot panel of coroplast at my local plastic supply store to fix up some of the more problematic areas of our volvo 850 wagon 5 speed. This car left the factory with an ok .32 Cd which is surprising considering the boxy styling. Still much better than the .36 for the Volvo 960 and .38 for the volvo 740 and 240 wagons. The whole job took about 3 hours of labor, a couple of bags of zip ties, 3 bolts from home depot and one ruined pair of pants. Total cost was $25. I'm sure it could be done much more cheaply if I went dumpster diving behind Kinkos or Home Depot.

Left front before

After


Right front before

After


Center front section


Rear before

After

My all time best tank without the undertray was 32mpg using a lot of effort to coast and control speed. So far with the undertray we've only done one 40 mile highway trip with cruise control set at 65mph. The trip computer showed 33.5mpg. We'll see how it pans out on our 1700 road trip to Seattle next week.

cheers
Justin


Last edited by tjts1; 07-27-2008 at 07:16 PM..
  Reply With Quote
The Following 6 Users Say Thank You to tjts1 For This Useful Post:
aerohead (02-16-2012), graydonengineering (02-24-2012), katiep (07-05-2011), mpg_numbers_guy (02-18-2018), Piwoslaw (02-17-2012), Sven7 (02-22-2012)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-27-2008, 06:32 PM   #2 (permalink)
EcoModding Apprentice
 
akcapeco's Avatar
 
Join Date: Jun 2008
Location: Va Beach
Posts: 104

V-strom 650 - '07 Suzuki DL-650 V-strom
90 day: 55.03 mpg (US)

07 Focus ZXW - '07 Ford Focus ZXW SE
90 day: 30.09 mpg (US)
Thanks: 1
Thanked 1 Time in 1 Post
Nice work.
__________________

  Reply With Quote
Old 07-27-2008, 08:24 PM   #3 (permalink)
A madman
 
brucey's Avatar
 
Join Date: Mar 2008
Location: WV
Posts: 1,012

Pequod - '17 Subaru Outback
90 day: 22.79 mpg (US)
Thanks: 70
Thanked 179 Times in 96 Posts
Send a message via AIM to brucey
Wait, wheres your muffler?
  Reply With Quote
Old 07-27-2008, 09:04 PM   #4 (permalink)
Banned
 
Join Date: Feb 2008
Location: california
Posts: 1,329
Thanks: 24
Thanked 161 Times in 107 Posts
Muffler is ahead of the rear suspension under the rear seat. You can see it in the last pic.

Last edited by tjts1; 07-27-2008 at 09:28 PM..
  Reply With Quote
Old 07-27-2008, 10:01 PM   #5 (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 529 Times in 356 Posts
tjts1 -

Wow! [Insert Clapping Smiley Here].

CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 07-28-2008, 05:20 AM   #6 (permalink)
Hi-Tech Redneck
 
Johnny Mullet's Avatar
 
Join Date: May 2008
Location: Ashtabula, Ohio
Posts: 1,436
Thanks: 6
Thanked 48 Times in 41 Posts
Send a message via AIM to Johnny Mullet Send a message via MSN to Johnny Mullet
Volvo for life! Good job on that.
__________________

GeoMetroforum.com - got mpg?
  Reply With Quote
Old 07-28-2008, 09:54 PM   #7 (permalink)
OCD Master EcoModder
 
brucepick's Avatar
 
Join Date: Dec 2007
Location: Eastern CT, USA
Posts: 1,920

Outasight - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 56.56 mpg (US)
Thanks: 409
Thanked 375 Times in 251 Posts
tjts1 rides again!
Really nice work!
Good to see ya.
I never did any of my postulated aero work under my Volvo brick.
I've been car pooling though, which has cut my gas consumption nearly in half!
__________________
Coast long and prosper.
Driving '00 Honda Insight, acquired Feb 2016.


  Reply With Quote
Old 07-29-2008, 12:03 AM   #8 (permalink)
Master EcoModder
 
gascort's Avatar
 
Join Date: Jun 2008
Location: Saint Louis, MO
Posts: 548

Gascort RIP - '93 Ford Escort Wagon
90 day: 43.01 mpg (US)

WifesCruze - '11 Chevrolet Cruze LT
90 day: 31.1 mpg (US)
Thanks: 14
Thanked 25 Times in 16 Posts
looks really nice! hooray for coroplast!
__________________
Gasoline, Wind, Solar, Gravity Hybrid-to-be! http://www.scientificmethodfueleconomy.blogspot.com/
  Reply With Quote
Old 07-29-2008, 02:24 AM   #9 (permalink)
Banned
 
Join Date: Feb 2008
Location: california
Posts: 1,329
Thanks: 24
Thanked 161 Times in 107 Posts
Quote:
Originally Posted by brucepick View Post
tjts1 rides again!
Really nice work!
Good to see ya.
I never did any of my postulated aero work under my Volvo brick.
I've been car pooling though, which has cut my gas consumption nearly in half!
Thanks Bruce! I'm debating a grill block for the road trip but i'm not sure how much would be safe or ideal. I blocked off the top half of the grill on our last trip to Seattle but that was in the winter. I was tempted to block off the entire grill and let the engine breath through the bumper opening but I'm not sure thats a good idea in the summer with the AC on. Any ideas?
  Reply With Quote
Old 08-01-2008, 01:03 PM   #10 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,316

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.07 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)
Thanks: 3,846
Thanked 6,723 Times in 3,486 Posts
Quote:
Originally Posted by tjts1 View Post
I was tempted to block off the entire grill and let the engine breath through the bumper opening but I'm not sure thats a good idea in the summer with the AC on. Any ideas?
Only one way to find out: keep adding tape and watching the coolant temp until you scare yourself. Then take a bit of tape off.

Seriously - I think you'll be surprised how much you can cover. Listen for the electric fan as well though, if you get it running a lot more, the added electrical load may negate the better aero.

__________________
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
The Following User Says Thank You to MetroMPG For This Useful Post:
Ford Festiva (09-01-2014)
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Good Coroplast to Coroplast Adhesive? garys_1k DIY / How-to 20 11-07-2015 12:26 AM
2008 Volvo S60 2.5T RH77 General Efficiency Discussion 15 12-30-2010 12:15 PM
Coroplast undertray question (covering the control arms) Otto Aerodynamics 8 03-30-2009 01:27 PM
Video: someone DIY tuft testing a Volvo MetroMPG Aerodynamics 4 12-29-2007 03:07 AM
850 watt tank style coolant heater - installed in the Blackfly MetroMPG EcoModding Central 4 11-28-2007 03:10 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com