Here's how the Pros Do an Underbody Fairing - Fuelly Forums

Click here to see important news regarding the aCar App

Go Back   Fuelly Forums > Fuel Talk > Aerodynamics
Today's Posts Search Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 05-02-2007, 07:40 PM   #1
Registered Member
 
trebuchet03's Avatar
 
Join Date: Mar 2007
Posts: 812
Country: United States
Send a message via AIM to trebuchet03
Here's how the Pros Do an Underbody Fairing

Check this.... So you've seen the pictures of the underside of a Lotus Elise (poor goodyear accident/debacle).... Well, how about a Noble M12 GTO (twin turbo v6)?





Here you go




I also have a picture of the diffuser if you want to see that. And the interior is beautiful

Now, if you EVER see me design something that sh!tty.... Please slap me in the face (at least). To remove that front panel... First - remove the bonnet, then reach under all sorts of stuff to unbolt 6 bolts... Then drill out 104 rivets.

Then, pull hard (without bending) - because that sucker is glued on too!


Why is it riveted? Well, honestly - there's no other way to get a really high stiffness without permanent fasteners.... Bolts can do the same - but requires a LOT more work and likely would be more difficult (to get to the other end). If it were me - I'd probably go for a larger tube for the frame to get better stiffness.
Attached Thumbnails
Click image for larger version

Name:	noble.JPG
Views:	560
Size:	58.4 KB
ID:	379   Click image for larger version

Name:	undernoble.JPG
Views:	571
Size:	63.8 KB
ID:	380   Click image for larger version

Name:	noblefront.JPG
Views:	494
Size:	71.1 KB
ID:	381  
__________________

__________________
Time is the best teacher. Unfortunately it kills all its students.


Bike Miles (Begin Aug. 20 - '07): ~433.2 miles

11/12
trebuchet03 is offline   Reply With Quote
Old 05-02-2007, 08:36 PM   #2
Supporting Member
 
Hockey4mnhs's Avatar
 
Join Date: Dec 2006
Posts: 760
Country: United States
niiice
__________________

__________________
Hockey4mnhs is offline   Reply With Quote
Old 05-02-2007, 08:37 PM   #3
Registered Member
 
Join Date: Feb 2007
Posts: 50
Country: United States
Maybe it's masquerading as a monocoque.

Does anyone know anything about the ease of removal of the various Ferrari models' underbody panels?
Dynamically Aero is offline   Reply With Quote
Old 05-02-2007, 08:39 PM   #4
Registered Member
 
trebuchet03's Avatar
 
Join Date: Mar 2007
Posts: 812
Country: United States
Send a message via AIM to trebuchet03
Quote:
Originally Posted by Dynamically Aero View Post
Maybe it's masquerading as a monocoque.
I guess it's a hybrid monocoque/tubular space frame We should totally put a hybrid sticker on it
__________________
Time is the best teacher. Unfortunately it kills all its students.


Bike Miles (Begin Aug. 20 - '07): ~433.2 miles

11/12
trebuchet03 is offline   Reply With Quote
Old 05-03-2007, 05:33 AM   #5
Registered Member
 
zpiloto's Avatar
 
Join Date: Mar 2006
Posts: 1,225
Country: United States
Quote:
Originally Posted by theclencher View Post
Whatever it is, I don't want it on my car!
Agreed. How does he change the oil? Must be running SynLune
zpiloto is offline   Reply With Quote
Old 05-03-2007, 08:22 AM   #6
Registered Member
 
GasSavers_TomO's Avatar
 
Join Date: Oct 2006
Posts: 1,108
Country: United States
Send a message via AIM to GasSavers_TomO Send a message via MSN to GasSavers_TomO Send a message via Yahoo to GasSavers_TomO
The car is Mid-engine Rear drive and by the looks of it there are some access points for the oil filter at least (or possibly a filter relocation kit on it?)

But accessing the front Suspension components does not look like any fun. From the pictures I've seen on the net though, it isn't all that bad once the wheel comes off and the bonnet is popped.
__________________

Honda Civic VX Info/Links
Remember to use good Webiquette!
Quote:
Originally Posted by ezeedee View Post
controversy is an idea thought up by weak people who are too afraid to hear the truth.
GasSavers_TomO is offline   Reply With Quote
Old 05-03-2007, 08:37 AM   #7
Registered Member
 
Join Date: Oct 2005
Posts: 1,978
Country: United States
Thought the same, but

Quote:
Originally Posted by zpiloto View Post
Agreed. How does he change the oil? Must be running SynLune
Even though it's a mid-engine design, I can't tell if the tray extends to the point of the oil pan.

More newer front-engine cars have a factory partial-undertray with a hatch to access the oil pan (the TSX has this, and yes, the oil tends to splash onto it when it first drains) Otherwise, IMO the aero benefits outweigh the inconvenience.

But back to the M12's tray -- what an injustice! I'm sure it helps with air flow, but the rivets and heater vents probably do not. I think I'll try Coroplast or something cheap and functional. The problem is, local Politicians went to a plastic-bag-style sign (thicker gauge) and it's harder to find "Free CP".

Something needs to go on the 'Teg, but an intake re-route for summer has to go in first (engine compartment air = source: reaching 130's again). Good on cold-starts, bad after 5 minutes I just need to make the time to do it...

RH77
__________________
rh77 is offline   Reply With Quote
Old 05-03-2007, 09:29 AM   #8
Registered Member
 
zpiloto's Avatar
 
Join Date: Mar 2006
Posts: 1,225
Country: United States
Go with the sponge. for the IAT
zpiloto is offline   Reply With Quote
Old 05-03-2007, 09:52 AM   #9
Registered Member
 
trebuchet03's Avatar
 
Join Date: Mar 2007
Posts: 812
Country: United States
Send a message via AIM to trebuchet03
Quote:
Originally Posted by zpiloto View Post
Agreed. How does he change the oil? Must be running SynLube
The rear end in front of the diffuser is exposed for access to the engine underside




Engine:


Bonnet:

Attached Thumbnails
Click image for larger version

Name:	noblerear.JPG
Views:	458
Size:	85.1 KB
ID:	382   Click image for larger version

Name:	nobleengine.JPG
Views:	377
Size:	80.4 KB
ID:	383   Click image for larger version

Name:	noblebonnet.JPG
Views:	685
Size:	73.7 KB
ID:	384  
__________________
Time is the best teacher. Unfortunately it kills all its students.


Bike Miles (Begin Aug. 20 - '07): ~433.2 miles

11/12
trebuchet03 is offline   Reply With Quote
Old 05-03-2007, 10:30 AM   #10
Registered Member
 
Join Date: Mar 2007
Posts: 1,138
Country: United States
So it's basically a re-bodied Fiero?

:-)
__________________

__________________
Bill in Houston is offline   Reply With Quote
Reply


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
Cannot use Fuelly Signature rod1 Fuelly Web Support and Community News 1 11-10-2012 03:04 PM
4-decimal-place Cost Per Mile? NBtarheel33 Fuelly Web Support and Community News 1 02-19-2011 02:15 AM

» Fuelly Android Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 06:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.