Thread: rear diffuser
View Single Post
Old 05-16-2010, 03:16 AM   #30 (permalink)
Piwoslaw
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,750

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,333
Thanked 749 Times in 476 Posts
Quote:
Originally Posted by puddleglum View Post
I see what you are saying, but your first diagram seems to show that a rear pan is useless on a bluff back car. The middle graph on this last post seems to still show a slight improvement.
I think those two graphs are based on different papers, so maybe the researchers used different vehicles? Anyway, I'd like to know what Hucho has to say about it, and I'd be honored if Phil dropped a comment.

One thing makes me wonder: my car is a square-backed station wagon, but it now has a Kamm-style roof extension, so can it still be regarded as "bluff"? In such a case, would a rear diffuser help more than if I didn't have the Kammy?
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote