View Single Post
Old 08-25-2015, 06:25 PM   #6 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,279
Thanks: 24,401
Thanked 7,368 Times in 4,767 Posts
not enclosing

Quote:
Originally Posted by getzfamily View Post
Would you mind sharing the link to the source of that image Freebeard?
I was hoping to avoid any belly work through lowering the car once I've got the rim and tyre choice sorted out (Toying with using a stiff thick line of rubber brush, which will hopefully have low air infiltration, descending from the bottom of the front panel I'm making to restrict as much air as possible from going underneath while avoiding the problem of contact with the road?)

And Aerohead, I know relative to what would be achieved from lengthening and enclosing it wouldn't be as significant but could worthwhile gains be seen from adding length but not enclosing it on the end? Access to the boot is important for my work and enclosing the tail makes that more difficult.

Thanks for the input folks!
Short of a proper boat tail,the open,'box-cavity' is the only other technology Hucho said offered us any gains.
Here's a semi-trailer setup

Here's a VW transporter with a cavity.

A true boat tail might offer a 30% drag reduction,whereas a box cavity appears to peter out at less than a 8% improvement.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote