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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-06-2015, 07:19 PM   #1 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
Added an air dam to the '99 Metro

This afternoon I made up an air dam for the Metro.

Here is what I started with. Its actually closer to 9" of clearance, but with holding the tape measure and the camera you can't tell.





I used lawn edging from the local big box store. I think this whole coil was $5.





I also picked up a bunch of L-brackets at the store. These were about $.70 cents each.

Using existing holes in the bumper (and drilling one here or there), I put some bolts through it to hold it in place.







Here is the finished product.









Still plenty of ground clearance, even for winter I think.





I have only driven the car once since the mod. Its not a familiar route, but it seems to coast a tiny bit better. I maintained speed down a hill where I normally loose speed slowly.

Attached Thumbnails
Click image for larger version

Name:	Metro 006.JPG
Views:	895
Size:	47.2 KB
ID:	17895   Click image for larger version

Name:	metro 013.JPG
Views:	1180
Size:	47.2 KB
ID:	17896   Click image for larger version

Name:	Metro 011.JPG
Views:	1239
Size:	49.2 KB
ID:	17897   Click image for larger version

Name:	IMG_20150606_144358.jpg
Views:	1177
Size:	21.6 KB
ID:	17898   Click image for larger version

Name:	Metro 003.JPG
Views:	1467
Size:	34.4 KB
ID:	17899  

Click image for larger version

Name:	Metro 001.JPG
Views:	1180
Size:	40.1 KB
ID:	17900   Click image for larger version

Name:	Metro 007.JPG
Views:	1456
Size:	40.2 KB
ID:	17901   Click image for larger version

Name:	Metro 012.JPG
Views:	1459
Size:	52.9 KB
ID:	17902  
__________________
Current project: A better alternator delete
  Reply With Quote
The Following 15 Users Say Thank You to Daox For This Useful Post:
aerohead (06-08-2015), AndrzejM (06-07-2015), BabyDiesel (06-06-2015), BamZipPow (06-06-2015), dirtydave (06-06-2015), elhigh (06-08-2015), Hyperaboutmpg (06-23-2015), j12piprius (06-06-2015), mcrews (06-07-2015), MetroMPG (06-06-2015), mpg_numbers_guy (04-12-2018), oldtamiyaphile (06-06-2015), ThePrudentNinja (07-07-2015), whatmaycome14 (07-15-2015), Xist (06-10-2015)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-06-2015, 08:52 PM   #2 (permalink)
Master EcoModder
 
Join Date: Aug 2013
Location: Richmond, VA
Posts: 447

Valerie - '03 Honda Civic DX
Team Honda
90 day: 55.79 mpg (US)
Thanks: 277
Thanked 231 Times in 105 Posts
Looking good!, you should A-B-A and see whatmaycome14 kind of results it is really giving you! I bet it would surprise you...
__________________

  Reply With Quote
Old 06-06-2015, 11:54 PM   #3 (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
Aesthetic critique: did the lawn edging come pre-wrinkled? It didn't look flat. Not that it matters functionally.

Quote:
Originally Posted by Daox View Post
Here is what I started with. Its actually closer to 9" of clearance,
Yeah, these cars have stupid high ride height for little cars. Next classic Metro mod: chop a coil off each spring? Plus that'll increase spring stiffness so you don't have to re-install the rear stabilizer bar! 2 birds, one stone!

Even in GM's advertising photos, they lowered the car.

This is lowered:



This is lowered even more:

Attached Thumbnails
Click image for larger version

Name:	237._SY200_V192200733_.jpg
Views:	833
Size:	19.9 KB
ID:	17903   Click image for larger version

Name:	1997-geo-metro_100026924_m.jpg
Views:	837
Size:	13.0 KB
ID:	17904  
__________________
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 2 Users Say Thank You to MetroMPG For This Useful Post:
aerohead (06-08-2015), BabyDiesel (06-08-2015)
Old 06-07-2015, 04:45 PM   #4 (permalink)
Master EcoModder
 
AndrzejM's Avatar
 
Join Date: Oct 2011
Location: Poland
Posts: 840

Berta - '97 BMW 318 tds Compact
90 day: 62.03 mpg (US)

Charlie - '07 Citroen C4 Grand Picasso Exclusive
90 day: 37.58 mpg (US)

Corsa - '05 Opel Corsa C
90 day: 53.22 mpg (US)

Mruczek - '03 Audi A2
90 day: 60.61 mpg (US)
Thanks: 185
Thanked 167 Times in 117 Posts
Neat!
__________________


Quote:
Gerhard Plattner: "The best attitude is to consider fuel saving a kind of sport. Everybody who has enough money for a strong car, can drive fast and hit the pedal. But saving fuel requires concentration, self-control and cleverness. It's a challenge with the nice effect of saving you money that you can use for other more important things."
  Reply With Quote
Old 06-08-2015, 01:56 AM   #5 (permalink)
Lean Burn Cruiser!
 
BabyDiesel's Avatar
 
Join Date: Dec 2012
Location: Johnston County, NC
Posts: 936

Big Blazin' - '88 Chevrolet K5 Blazer Silverado
SUV
90 day: 14.97 mpg (US)

Chili - '00 Honda Insight
Gen-1 Insights
Team Honda
House of Tudor
Team Streamliner
90 day: 72.29 mpg (US)
Thanks: 840
Thanked 491 Times in 310 Posts
I second the cool spring chop!!

Your work has me wanting to put my airdam back on Mr. Tim...
__________________



Remember, thank a fellow EM'er for a helpful post!!!
I hypermile better in my cowboy boots

Past threads:
ZX2 modding thread
Ecomodder's Top 10: How they do it!
ZX2 Aerodynamics: Shooting for 0.15 Cd
ZX2 coast-down testing for Cd & Crr
  Reply With Quote
Old 06-08-2015, 09:46 AM   #6 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
Thanks guys!


Quote:
Originally Posted by MetroMPG View Post
Aesthetic critique: did the lawn edging come pre-wrinkled? It didn't look flat. Not that it matters functionally.
Yes, the lawn edging its not completely flat when all coiled up. It looks good enough for me though. The car isn't exactly a looker. You can't really tell just by walking around the car from normal angles. The entire front is hidden by the overhang, and the sides look decent enough. If it gets your eyes off the rust, success!
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-08-2015, 10:00 AM   #7 (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
I bet you got about 100 mpg on the drive to work this AM.



Actually, like BabyDiesel, I was inspired by your project: I went and found the edging air dam I had installed on the 2007 Civic (sold). I'll stick it on the Firefly soon. Easier than fabricating a durable version of the big a$$ cardboard airdam I tested on the car way back when...





From: http://ecomodder.com/forum/showthrea...down-9732.html

That giant airdam worked nicely (coastdown tested). But I never made a permanent version.

The perfect is the enemy of the good.
__________________
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

Last edited by BabyDiesel; 06-08-2015 at 11:46 AM..
  Reply With Quote
The Following User Says Thank You to MetroMPG For This Useful Post:
aerohead (06-08-2015)
Old 06-08-2015, 10:40 AM   #8 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
Yeah, I re-read your thread on your air dam before doing mine. However, with the ~1.5 hrs I had to make mine I pretty much just defaulted to 'how can I do this the easiest' haha. I also wanted to get the dam low enough on the bumper to get it into the airflow.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-08-2015, 12:15 PM   #9 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
Actually, I took the Prius today, so I didn't get a chance to try out the Metro on a normal route yet.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-10-2015, 11:09 PM   #10 (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
Mr Daox: can you do me a flavour and measure the overall width of your fancy new air dam?

__________________
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
Reply  Post New Thread






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