View Single Post
Old 09-04-2009, 03:49 PM   #8 (permalink)
EcoModding Enthusiast
Join Date: May 2008
Location: Austin
Posts: 155

Silver Bullet - '03 Mazda Protege LX
90 day: 29.51 mpg (US)

Silver Bullet - '03 Mazda Protege LX
90 day: 37.06 mpg (US)

Blaze - '17 Ford Escape
Thanks: 23
Thanked 2 Times in 2 Posts
Originally Posted by chuckm View Post
The center was flexing upward... but were the sides flexing inward? Depending on your construction and geometry, the transition from the sides of your kammback to the top may be a high pressure point. Rather than being a case of the center of the top lifting, the sides may be squeezing in and forcing the top up.
the entire outside of the kammback is almost definitely at a low pressure with [attached] flow at the speeds discussed. So the sides probably want to bow out as well as the top.

And concerning the fear of dangerous amounts of lift, I would think that unless the kammback is made from heavy guage metal, such amounts of lift would tear it off the car before it caused a huge control issue.

Last edited by 2003protege; 09-04-2009 at 05:42 PM.. Reason: semantics
  Reply With Quote