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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-09-2008, 02:42 PM   #11 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,320

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
Thanks: 611
Thanked 428 Times in 280 Posts
Some high-end offroad vehicles - Land Rover comes to mind - have on-the-fly adjustable ride height.

__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles

Last edited by PaleMelanesian; 05-09-2008 at 02:55 PM..
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-09-2008, 03:15 PM   #12 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,320

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
Thanks: 611
Thanked 428 Times in 280 Posts
Nice article here: http://www.autospeed.com/cms/A_2456/article.html
Especially this part:

Click image for larger version

Name:	autospeed-wheel-deflectors.GIF
Views:	380
Size:	7.4 KB
ID:	694
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote
Old 05-10-2008, 02:39 AM   #13 (permalink)
Future EV Owner
 
Join Date: Mar 2008
Location: Sussex Wisconsin
Posts: 674

Wannabe - '05 Honda Civic LX
90 day: 40.53 mpg (US)
Thanks: 0
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by lunarhighway View Post
i drive around town in 5th

i've been wondering... woudn't a partial infaltable nose be workable? .
Perhaps, but a tail would be a much easier place to start. There's a lower chance of the air ripping it off there, and usually more places to strap it on. We all know that a tail helps.

Quote:
Originally Posted by PaleMelanesian View Post
Nice article here: http://www.autospeed.com/cms/A_2456/article.html
Especially this part:

Attachment 694
Nice! That helps me plan!
__________________
  Reply With Quote
Old 05-10-2008, 01:12 PM   #14 (permalink)
EV OR DIESEL
 
Join Date: Dec 2007
Location: South Louisiana
Posts: 1,750

FarFarfrumpumpen - '03 Volkswagen Jetta Wagon GLS Premium

Quorra - '12 Tesla Model S P85
Thanks: 57
Thanked 108 Times in 84 Posts
Send a message via AIM to dremd
S class, x5, Cayenne, and some Tourags have adjustable ride height as well.
__________________
2012 Tesla Model S P85
2013 Nissan LEAF SV totaled by now deceased intoxacated driver.
2012 Nissan LEAF SV
6 speed ALH TDI Swapped in to a 2003 Jetta Wagon
  Reply With Quote
Old 05-12-2008, 08:49 AM   #15 (permalink)
Master EcoModder
 
Join Date: Feb 2008
Location: belgium
Posts: 663

vectra a - '95 Opel Vectra GLS
90 day: 37.51 mpg (US)
Thanks: 14
Thanked 61 Times in 44 Posts
here's what i build over the weekend... the final result is not to extreme as it only a bit lower than the front dams, owning to the size of the material available... than again, i could always enlarge them later.

i cut up two 50CD-r spindle lids and unroled them, than i used a perforator to make a series of clean holes in them for the screws (a couple more than needed just in case)

next a gave the back a coat of black paint. since theyre transparent this gives the front a nice gloss finish and the paint can't get sandblasted off at the front (wich happened on my previous car) finally i used some small self tapping wood screws to secure them to the wheel well liner.

here's some pictures:
before:


the source material:


painted:


installed:




the last picture shows they might not do all that much, as the car already has some small dams at the front of the bumper... still some air that might hit the suspention and be deflected above it now will be forced below and around it. also the perspective of the picture makes them look smaller then they actually are

i'll see what they are like to drive with in the next few days.
__________________
aerˇoˇdyˇnamˇics: the science of passing gass

*i can coast for miles and miles and miles*
  Reply With Quote
Old 05-16-2008, 12:24 AM   #16 (permalink)
I REFUSE!
 
thebrad's Avatar
 
Join Date: Apr 2008
Location: 92596
Posts: 262

VTEC Express - '96 Honda Civic CX
90 day: 57.72 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to thebrad
So is it more aerodynamic to block any air going to the tires from the front end like Andrew J's Civic VX?
__________________
  Reply With Quote
Old 05-16-2008, 01:47 AM   #17 (permalink)
Future EV Owner
 
Join Date: Mar 2008
Location: Sussex Wisconsin
Posts: 674

Wannabe - '05 Honda Civic LX
90 day: 40.53 mpg (US)
Thanks: 0
Thanked 4 Times in 4 Posts
Nice pics, lunarhighway! I'm going to be giving car lot security guards something to worry about in an hour. Hope there's no law against looking......
__________________
  Reply With Quote
Old 05-16-2008, 02:28 PM   #18 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
Thank the tuner world for advancing the air ride technology. Now a days you can get an air ride suspension for any vehicle. I have on eon my Scion and with proper adjustment I can go from pancaking the body kit flush with the floor to 3" above stock height, which is how I get it on and off the trialer. These kits come with electronics that allow you to monitor individual strut pressures as well as allowing to set and lock pressures digitally, even with presets.

Plus you get the added bonus or air ride, which is alot smoother than your standard shock and coil suspensions ..
__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Old 05-16-2008, 05:18 PM   #19 (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
lunarhighway -

Quote:
Originally Posted by lunarhighway View Post
here's what i build over the weekend... the final result is not to extreme as it only a bit lower than the front dams, owning to the size of the material available... than again, i could always enlarge them later.

i cut up two 50CD-r spindle lids and unroled them, than i used a perforator to make a series of clean holes in them for the screws (a couple more than needed just in case)

next a gave the back a coat of black paint. since theyre transparent this gives the front a nice gloss finish and the paint can't get sandblasted off at the front (wich happened on my previous car) finally i used some small self tapping wood screws to secure them to the wheel well liner.

here's some pictures:
...

the source material:


...
I love to see this kind of re-use of "lying around stuff".

CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 08-13-2008, 02:49 PM   #20 (permalink)
EcoModding Apprentice
 
Join Date: Aug 2008
Location: UK
Posts: 104

Fizz - '06 Skoda Fabia Combi
TEAM VW AUDI Group
90 day: 56.62 mpg (US)
Thanks: 3
Thanked 9 Times in 7 Posts
Indeed Citroen kept their hydro-pneumatic suspension largely unchanged from the 50's up until year 2000. Their larger cars still use a version of it.

I believe the C5 and maybe others do indeed lower ride height at speed for economy. These are not high-end cars in terms of cost, either. The ride height and attitude is maintained regardless of load - another economy advantage.

However on most models Citroen do not give the facility for height changes at highway speeds - I guess this would mean the driveshafts would be operating at permanently offset positions.

Quote:
Originally Posted by lunarhighway View Post

come to think of it, the old citroens like the DS did have this special suspention that would cause the cars to "sit down" when it was parked and than raise to a cerain level depending on the weight they where carying... these cars had fixed rear wheel fairings

but could lift a wheel of the ground so that it would drop out of the wheelwell and could be removed.... clever stuff for it's time and even now, i even think you could select various ride heights. sooo the technology for variable ride height is definately out there.

in fact later 80's and early 90's citroens had really gread drag quoefficients as well so with a little tweaking and aeromodding that could be an interesing starting point for a project.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Article: Want cars to eat less? Put 'em on a diet MetroMPG General Efficiency Discussion 34 07-14-2013 01:38 AM
Cars compared in wind tunnel Bearleener Aerodynamics 30 08-26-2011 05:38 PM
Good cheap project cars ebacherville Aerodynamics 13 05-08-2008 12:04 PM
Bio-Beetle Rental Cars - "I felt like a celebrity!" MetroMPG Fossil Fuel Free 0 01-04-2008 09:21 AM
Article: Do Any Current Cars Meet the New CAFE Standard? MetroMPG General Efficiency Discussion 2 12-18-2007 03:03 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