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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-14-2008, 01:20 PM   #21 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 20,852

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

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.51 mpg (US)
Thanks: 2,690
Thanked 5,597 Times in 2,873 Posts
Daihatsu did, on their concept car:
http://ecomodder.com/forum/showthrea...e-ii-4374.html

__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-14-2008, 02:05 PM   #22 (permalink)
Mr. Blue Tape
 
azraelswrd's Avatar
 
Join Date: Jun 2008
Location: Fresno, CA
Posts: 345

AzxA - '06 Scion xA
90 day: 42.72 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
Hey guys,

For slip-on hubcaps (no restraining bolts), what is the safest way to take them off?

1) Pry from the outer edge with a screwdriver
2) Pull straight off with hands by holding spokes
3) Other
__________________


My 5 pillars of fuel efficiency:
  • driving style
  • aerodynamics
  • tires
  • weight reduction
  • engine maintenance
  Reply With Quote
Old 08-14-2008, 09:24 PM   #23 (permalink)
Recycling Nazi
 
Bror Jace's Avatar
 
Join Date: May 2008
Location: People's Republic of Albany
Posts: 234

Blue Bullet - '06 Honda Civic Sedan LX
90 day: 35.68 mpg (US)
Thanks: 2
Thanked 7 Times in 7 Posts
Arrow

I think it depends on the cover ... but I think the best way is to pry the edges (carefully) all the way around until the cover pops off.

Of course, with my new full moon covers, that's the only option I have.

Clear covers? I think they'd get dirty, scratched and pitted quickly ... then look very, very poor.
__________________
--- Bror Jace
  Reply With Quote
Old 09-27-2008, 09:22 AM   #24 (permalink)
Master EcoModder
 
tasdrouille's Avatar
 
Join Date: Jan 2008
Location: Mirabel, QC
Posts: 1,672

The Guzzler - '08 Hyundai Elantra GL
90 day: 33.12 mpg (US)

Got Soul? - '11 Kia Soul 2U
Thanks: 35
Thanked 80 Times in 52 Posts
If anyone still had doubts on that one...



Attached Thumbnails
Click image for larger version

Name:	Rims.jpg
Views:	3136
Size:	78.6 KB
ID:	1841   Click image for larger version

Name:	Results.jpg
Views:	3245
Size:	35.7 KB
ID:	1842  
__________________



www.HyperKilometreur.com - Quand chaque goutte compte...
  Reply With Quote
The Following User Says Thank You to tasdrouille For This Useful Post:
ECONORAM (05-23-2012)
Old 09-27-2008, 09:25 AM   #25 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 20,852

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

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.51 mpg (US)
Thanks: 2,690
Thanked 5,597 Times in 2,873 Posts
Great find, tas. What's the source?
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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:
fusion210 (03-01-2011)
Old 09-27-2008, 09:28 AM   #26 (permalink)
Master EcoModder
 
tasdrouille's Avatar
 
Join Date: Jan 2008
Location: Mirabel, QC
Posts: 1,672

The Guzzler - '08 Hyundai Elantra GL
90 day: 33.12 mpg (US)

Got Soul? - '11 Kia Soul 2U
Thanks: 35
Thanked 80 Times in 52 Posts
SAE paper 2007-01-1047 The Influence of Rotating Wheels on Total Road Load
__________________



www.HyperKilometreur.com - Quand chaque goutte compte...
  Reply With Quote
Old 09-27-2008, 10:17 AM   #27 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 20,852

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

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.51 mpg (US)
Thanks: 2,690
Thanked 5,597 Times in 2,873 Posts
Those aftermarket rims are "air blenders"!

It's interesting to note that the exposed 19 inch rim is the worst case, but when masked, it's the 2nd best case - better than the masked 17 inch rim.

To me that suggests the shrinking gap between tire and wheel arch (you can see the progression in the photos) may be having a beneficial effect. And it may be even more significant if they didn't control for tire width as well (they apparently didn't control for overall circumference, so I'd be surprised if they did control for width).
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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
Old 09-27-2008, 11:32 AM   #28 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,433

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 2,753
Thanked 2,470 Times in 1,523 Posts
Hello Bror,

Quote:
Originally Posted by Bror Jace View Post
These do not have valve stem holes -- do you have to use short stems that don't stick out, and you have to pull the cover to check the pressure and/or add air?

Or, could you drill a hole? Or, is there a company that sells these with the hole already there?
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 09-27-2008, 01:09 PM   #29 (permalink)
Recycling Nazi
 
Bror Jace's Avatar
 
Join Date: May 2008
Location: People's Republic of Albany
Posts: 234

Blue Bullet - '06 Honda Civic Sedan LX
90 day: 35.68 mpg (US)
Thanks: 2
Thanked 7 Times in 7 Posts
Arrow

Neil, I bought the 16" full moon discs and have had them on my car for about 6 weeks. I posted pics in the "Racing Discs, Are They Worth It?" thread.

I can't say I can discern any difference in mileage as the air temps around here have dropped about 15-20 degrees since August. This should have a larger, negative effect than the discs' positive one. As the air temps drop, my mileage follows. It's been this way with every car I've ever owned.

Anyway, mine are solid with no access holes to check tire pressures (there are places inside the cover (gaps in the 'teeth') for the valve stem but you have to remove them to check the pressure. However, I think this will take just a minute or so with a flat-head screwdriver.

Drilling through them should be possible as they are fairly thin metal ... but I would not advise it. I'm not sure the benefits outweigh the damage done to the not-exactly-cheap discs.
__________________
--- Bror Jace
  Reply With Quote
The Following User Says Thank You to Bror Jace For This Useful Post:
Kimonoskunk (10-26-2017)
Old 09-27-2008, 03:35 PM   #30 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 9,847
Thanks: 14,604
Thanked 5,220 Times in 3,052 Posts
smoothies

Thanks Concrete! It is alot of work and I'm glad you weren't punished for your good deed!

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  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