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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-17-2015, 10:13 AM   #31 (permalink)
EcoModding Lurker
 
Join Date: Feb 2012
Location: UK
Posts: 99

Panzerwagon - '02 Skoda Fabia
90 day: 53.88 mpg (US)
Thanks: 1
Thanked 10 Times in 9 Posts
Can anyone provide any advice of whether a front air dam would benefit my Fabia?

My Skoda Fabia has a very small OEM damn (no more than an inch) which sits just ahead of an OEM undertray that seals off the bottom of the engine bay nicely. The car also sits on stock suspension so the ride height is typically hight of a eco hatch back.

Would a front air dam only increase the frontal area of the car? My understanding is you want to decrease the flow of air through the turbulent underbody, but would that need to be a balanced trade off with frontal area, no?

Sorry, many questions, and no pics at the moment.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-18-2015, 04:35 PM   #32 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 10,856
Thanks: 17,144
Thanked 5,815 Times in 3,505 Posts
Fabia

Quote:
Originally Posted by RunningStrong View Post
Can anyone provide any advice of whether a front air dam would benefit my Fabia?

My Skoda Fabia has a very small OEM damn (no more than an inch) which sits just ahead of an OEM undertray that seals off the bottom of the engine bay nicely. The car also sits on stock suspension so the ride height is typically hight of a eco hatch back.

Would a front air dam only increase the frontal area of the car? My understanding is you want to decrease the flow of air through the turbulent underbody, but would that need to be a balanced trade off with frontal area, no?

Sorry, many questions, and no pics at the moment.
I looked up your car online,here's a technical drawing:
http://autoautomobiles.narod.ru/auto...koda-fabia.gif
I don't see any measurable benefit that you'd derive from a lower airdam unless you were going to race it only.It looks as if it's already optimized for drag.
A number of aerodynamicists who've done wind tunnel and CFD investigations found that as length was added,the drag benefit disappeared,reversing the trend,unless very close to the ground,which won't work for a daily driven car.
Volkswagen tested about 18-different air dams for their VW do Brasil 1600 fastback.There was nothing intuitive about the lowest drag configuration tested.Location,geometry,and size all contribute to the interaction.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 05-18-2015, 05:48 PM   #33 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 535 Times in 384 Posts
RS's motor is a 'combi'



Would that change anything ?
__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
The Following User Says Thank You to Arragonis For This Useful Post:
aerohead (05-18-2015)
Old 05-18-2015, 05:49 PM   #34 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 535 Times in 384 Posts
P.s. my Fabia had a lower rubber air dam.
__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Old 05-27-2015, 12:19 PM   #35 (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
Quote:
Originally Posted by Eddie25 View Post
what is the current ground clearance of your airdam? also how far does it extend from the bottom of the bumper? out of all these air dams your one looks like it would suit my car best!
Unfortunately I removed the air dam a while back and have no way of answering this questing exactly. However, if I recall correctly, I had about 4" between the bottom of the dam and the ground.

The air dam is just using the standard lawn edging from Lowes or home Depot. I might suggest that you go and measure what they have before installing anything on your car. Just to play it safe.
__________________

  Reply With Quote
Old 05-28-2015, 03:44 AM   #36 (permalink)
EcoModding Apprentice
 
Eddie25's Avatar
 
Join Date: Dec 2014
Location: south africa
Posts: 168

Fiesta - '06 Ford Fiesta 1.4 Ambiante
90 day: 45.9 mpg (US)

Dakar - '03 BMW f650 GS Dakar (retired)

Tucson - '07 Hyundai Tucson 2.0 GLS
90 day: 32.67 mpg (US)
Thanks: 172
Thanked 51 Times in 32 Posts
why on earth did you remove it? im going to attempt to start my mods this weekend.
__________________



  Reply With Quote
Old 05-28-2015, 03:48 AM   #37 (permalink)
Master EcoModder
 
jedi_sol's Avatar
 
Join Date: Mar 2009
Location: Tustin, CA
Posts: 929

2013 STi *SOLD* - '13 Subaru Impreza WRX STi
Subaru
Sports Cars
Team Turbocharged!
90 day: 26.59 mpg (US)

1996 Geo Metro *RETIRED from Ecomodding* - '96 Geo Metro Base
90 day: 58.68 mpg (US)
Thanks: 368
Thanked 378 Times in 236 Posts
This is why, lol

http://ecomodder.com/forum/showthrea...tml#post480625
__________________







See the rest of the Sti project log:
http://ecomodder.com/forum/showthrea...log-26612.html
  Reply With Quote
The Following User Says Thank You to jedi_sol For This Useful Post:
Fat Charlie (05-28-2015)
Old 05-28-2015, 04:05 AM   #38 (permalink)
EcoModding Apprentice
 
Eddie25's Avatar
 
Join Date: Dec 2014
Location: south africa
Posts: 168

Fiesta - '06 Ford Fiesta 1.4 Ambiante
90 day: 45.9 mpg (US)

Dakar - '03 BMW f650 GS Dakar (retired)

Tucson - '07 Hyundai Tucson 2.0 GLS
90 day: 32.67 mpg (US)
Thanks: 172
Thanked 51 Times in 32 Posts
my bad! didn't realise same person
__________________



  Reply With Quote
Old 05-28-2015, 09:44 AM   #39 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 3,583

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,420
Thanked 1,567 Times in 997 Posts
Quote:
Originally Posted by jedi_sol View Post
Thanks, I don't know how I missed that thread.
__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
Old 05-28-2015, 12:29 PM   #40 (permalink)
Master EcoModder
 
jedi_sol's Avatar
 
Join Date: Mar 2009
Location: Tustin, CA
Posts: 929

2013 STi *SOLD* - '13 Subaru Impreza WRX STi
Subaru
Sports Cars
Team Turbocharged!
90 day: 26.59 mpg (US)

1996 Geo Metro *RETIRED from Ecomodding* - '96 Geo Metro Base
90 day: 58.68 mpg (US)
Thanks: 368
Thanked 378 Times in 236 Posts
No offense to our great ecomodder community, but a lot of good threads go unnoticed because of weird ass "thread titles" LOL

__________________







See the rest of the Sti project log:
http://ecomodder.com/forum/showthrea...log-26612.html
  Reply With Quote
The Following 2 Users Say Thank You to jedi_sol For This Useful Post:
MetroMPG (05-28-2015), whatmaycome14 (07-24-2015)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com