tossing around the idea of adding a splitter - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Go Back   Fuelly Forums > Fuel Talk > Aerodynamics
Search Today's Posts Mark Forums Read Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 05-07-2010, 03:38 PM   #1
Senior Member
 
Join Date: Mar 2011
Posts: 446
Country: United States
Location: Charlotte nc
tossing around the idea of adding a splitter

Casper as you probably know is a race car but I also use it for my commute a few days a week. I am thinking about adding a splitter at the bottom of the airdam. the theory is it will force the air to go either over or under the car and reduce the amount piling up against the front of the car. I have looked at this for some time, what I've seen is a splitter is good for more straight away speed and better cornering. that sounds pretty good to me.
__________________

Philip1 is offline   Reply With Quote
Old 05-10-2010, 06:57 AM   #2
Registered Member
 
Join Date: Nov 2007
Posts: 1,460
Country: United States
Location: north east PA
What little I read on splitters stated they create downforce. The effect pushing the air over the car also pushes down on the splitter. That will improve cornering, but will also increase rolling resistance.
__________________

trollbait is offline   Reply With Quote
Old 05-11-2010, 03:08 AM   #3
Senior Member
 
Join Date: Mar 2011
Posts: 446
Country: United States
Location: Charlotte nc
an extended airdam probably does the same thing and I already have that. Hmmmmm...
Philip1 is offline   Reply With Quote
Old 05-11-2010, 04:59 AM   #4
Registered Member
 
GasSavers_BEEF's Avatar
 
Join Date: Apr 2008
Posts: 1,831
yea, but a splitter looks cool
__________________
Be the change you wish to see in the world
--Mahatma Gandhi



GasSavers_BEEF is offline   Reply With Quote
Old 05-11-2010, 05:41 AM   #5
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
I think they look silly.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 05-11-2010, 10:26 AM   #6
Registered Member
 
Join Date: Nov 2007
Posts: 1,460
Country: United States
Location: north east PA
Quote:
Originally Posted by philip1 View Post
an extended airdam probably does the same thing and I already have that. Hmmmmm...
I don't see how. An airdam is a flat verticle surface, and a splitter is lip at the bottom of that surface. When the flat verticle surface is moving, it pushes the air in front of it. The air pushes back. It just doesn't push back, it pushes in all directions with an equal force. So it is what is pushing the rest of the air over and around the moving surface.

Some will be pushed under, but an extended airdam will limit that. If there is a splitter at the bottom of the airdam, the downward pushing will push on it, creating downforce on the front of the car. A jutting front bumper under a flat grill does act as a splitter. It's why early 80's BMW's look the way they do.

The down force increases traction there and allows for better cornering. It will also increase rolling resistance. Depending on size of the splitter, and average daily speeds, it may have little effect on fuel economy. Any effect on economy will negative though.
trollbait is offline   Reply With Quote
Old 05-11-2010, 01:12 PM   #7
Senior Member
 
Join Date: Mar 2011
Posts: 446
Country: United States
Location: Charlotte nc
Well this is for the race car so downforce will be a big plus. You should see the rear spoiler on this car it's like a barn door. included below is a photo of said barn door...



I do take this off when I'm driving to and from an event it kills milage.
Philip1 is offline   Reply With Quote
Old 05-12-2010, 06:07 AM   #8
Registered Member
 
Join Date: Nov 2007
Posts: 1,460
Country: United States
Location: north east PA
Definite plus for racing. Removable, like the spoiler, would also be a plus to avoid a hit a fuel economy getting to the event.
trollbait is offline   Reply With Quote
Old 05-12-2010, 05:42 PM   #9
Senior Member
 
Join Date: Mar 2011
Posts: 446
Country: United States
Location: Charlotte nc
I'm looking to see if dzutz fasteners will handle the force and fit in my budget.

Last race weekend I managed 27mpg including 14 laps at max power
Philip1 is offline   Reply With Quote
Old 05-14-2010, 04:36 PM   #10
Senior Member
 
Join Date: Mar 2011
Posts: 446
Country: United States
Location: Charlotte nc
here is one of those laps

http://www.youtube.com/watch?v=IN58kUB9Iwg
__________________

Philip1 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help Needed! thewolfwagon Fuelly Web Support and Community News 2 05-17-2012 05:44 PM
Car not showing in browse vehicles Armegatron Fuelly Web Support and Community News 1 01-17-2012 04:15 AM
Another GM brand bites the dust (next week) jadziasman Automotive News, Articles and Products 22 04-30-2009 12:45 PM
New Term: EOI 101mpg Automotive News, Articles and Products 1 06-20-2008 11:32 AM
new to the site ranger387 Introduce Yourself - New member Welcome 5 11-12-2007 07:17 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 03:42 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.