View Single Post
Old 06-28-2019, 10:32 PM   #119 (permalink)
mpg_numbers_guy
Master EcoModder
 
mpg_numbers_guy's Avatar
 
Join Date: Feb 2018
Location: VA
Posts: 1,363

Toby - '13 Toyota Prius C
90 day: 64.01 mpg (US)

Daz - '15 Mazda 3 iTouring w/ Tech Package
90 day: 38.2 mpg (US)
Thanks: 321
Thanked 480 Times in 365 Posts
A kammback that follows the template will have limited benefit, if any, on a sedan. Kammbacks work better on boxy hatchbacks where their rear aero is worse. Even a fill boattail on a sedan may not have magical gains in relation to the work invested in designing one. A tail extension is simpler and does improve economy by giving the detached air down the rear of the car something to attach to. Try tuft testing the rear of your car to see where airflow is attached and where it isn't to give you an idea of what you have to work with.

Quote:
Originally Posted by 19bonestock88 View Post
I like it! I had originally wanted something similar for my Saturn but hadn’t made it yet
You're still running your tail extension though, right?
__________________
2013 Toyota Prius C 2 (my car)


2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car)
  Reply With Quote