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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-21-2009, 01:20 AM   #1 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
"Drag" Racing...

Is it called drag racing because the cars are so bad aerodynamically?

Why don't professional drag racing teams do the obvious things like smoothing the body, adding wheel skirts, etc... The things that won't affect downforce, but do induce massive "parachute effect" drag?

I never really understood this, since I learned about aerodynamic effects in 8th grade with our CO2 "dragster" project.

__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-21-2009, 05:33 PM   #2 (permalink)
Banned
 
Join Date: Feb 2008
Location: maine
Posts: 758

oldscoob - '87 subaru wagon gl/dr
90 day: 47.06 mpg (US)
Thanks: 21
Thanked 18 Times in 14 Posts
drag applies to many things, including the oem engines holding themself back. i could babble a few other things beyond air. if to overwhelm a power to weight, not many care about airflow...while doing a wheelie..for normal cars put there anyway. the fastest racing class plays with aero.
  Reply With Quote
Old 06-21-2009, 05:37 PM   #3 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
I believe the term drag racing came about because people used to race down "the main drag" of town.. meaning a street.
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-21-2009, 08:04 PM   #4 (permalink)
Master EcoModder
 
Join Date: Nov 2008
Location: Madison AL
Posts: 1,123

The Geo - '93 Geo Metro
Team Metro
90 day: 45.16 mpg (US)
Thanks: 30
Thanked 40 Times in 37 Posts
depends on how fast your car is...

Cars that don't finish the 1/4 in 14 seconds don't need it, most don't get over 100. 9 second cars do need aero mods, although most drag racers don't realize it/ they want their cars to look good.
Although.....funny cars need rear will skirts...
  Reply With Quote
Old 06-21-2009, 09:13 PM   #5 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Quote:
Originally Posted by MadisonMPG View Post
depends on how fast your car is...

Cars that don't finish the 1/4 in 14 seconds don't need it, most don't get over 100. 9 second cars do need aero mods, although most drag racers don't realize it/ they want their cars to look good.
Although.....funny cars need rear will skirts...
This isn't true at all... you take any car that finishes the 1/4 mile at a speed over 45 MPH, and major aero-mods would lower their ET's, even marginally. When you're in any class, .01 second counts.
__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 06-21-2009, 10:24 PM   #6 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
A lot of my friends had 87-93 Mustang GT's running anywhere from mid 11's to mid 14's. One of the things that slowed the cars down was the the deep rear bumper. It acted like a parachute. Thats why if you notice the "Cobra" version (more performance) of the same years has a totally different rear bumper cover and different side skirts.

GT
http://memimage.cardomain.com/ride_i...0113_large.jpg

Cobra
http://www.dragtimes.com/images/9094...rd-Mustang.jpg

BTW the rear wing on the Cobra was totally terrible. For High Speed runs people would tape them shut
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-22-2009, 12:08 AM   #7 (permalink)
Master EcoModder
 
Join Date: Nov 2008
Location: Madison AL
Posts: 1,123

The Geo - '93 Geo Metro
Team Metro
90 day: 45.16 mpg (US)
Thanks: 30
Thanked 40 Times in 37 Posts
Quote:
Originally Posted by Christ View Post
This isn't true at all... you take any car that finishes the 1/4 mile at a speed over 45 MPH, and major aero-mods would lower their ET's, even marginally. When you're in any class, .01 second counts.
Please show me a class of cars that run 14 seconds, and you'll see why it doesn't matter.

Yes aerodynamics help, but it's not worth it to the people racing.
  Reply With Quote
Old 06-22-2009, 12:10 AM   #8 (permalink)
EcoModding Apprentice
 
Join Date: Jun 2009
Location: French Louisiana
Posts: 123

Yaris - '07 Toyota Yaris Liftback
Thanks: 0
Thanked 0 Times in 0 Posts
With top-fuel dragsters, they overcome aero disadvantages with engine power. Also, there is a form their cars must meet in certain classes to qualify.

The term "drag" comes from "dragging" related to the French "draguer" meaning "to act like a playboy or womanizer."
  Reply With Quote
Old 06-22-2009, 12:11 AM   #9 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Come to the local drags at Beaver Springs, PA... you'll see lots of the slowest cars out there that have minor aero-mods to help keep the "parachute effect" down. Some of those mods include cutting huge holes in the back bumper covers, folding in mirrors, stuffing foam strips in the gaps between the hood and fenders, etc.

I think you're assuming that I'm talking about professional drag racing only... I'm not. Even guys with Geo Metros take their cars to the track on weekends and bracket race. That's where it's at.
__________________
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 06-22-2009, 12:13 AM   #10 (permalink)
EcoModding Apprentice
 
Join Date: Jun 2009
Location: French Louisiana
Posts: 123

Yaris - '07 Toyota Yaris Liftback
Thanks: 0
Thanked 0 Times in 0 Posts
I would like to race my Yaris against a professional top-fuel just for a laugh. Did you know that top-fuel dragsters accelerate faster than F-16 fighter jets?

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alloy wheels + Metallic Tape = Aero Racing Disk cfg83 Aerodynamics 20 06-09-2010 03:23 AM
More Citicar Drag Racing Videos bennelson Fossil Fuel Free 3 06-06-2009 10:06 PM
1 - 15" Full Moon Racing Disc Bror Jace For Sale 0 04-11-2009 12:29 PM
All items I scanned in the new product showcase dremd The Lounge 0 11-08-2008 04:14 PM
racing disks crexcrex The Lounge 0 07-19-2008 02:19 AM



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