Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Frontal area and Drag Coefficient? (Chevrolet HHR)

Curly1 · 01-09-2009, 01:05 AM

Does anyone know the frontal area of the Chevy HHR?
I think the factory Drag Coeffecient is .354.

I have lowered it 1.5 inches and put a 4" front air dam on it. Any idea how much that helped (hurt?) the Drag Coeffecient?

Any ideas to help Aerodynamics and still maintain the factory look?

Thanks in advance. Curly

01-09-2009, 01:05 AM	#1 (permalink)
Curly1 EcoModding Lurker Join Date: Oct 2008 Location: United States of Texas Posts: 43 Princess - '08 Chevy HHR LSSR 90 day: 23.66 mpg (US) Thanks: 0 Thanked 2 Times in 1 Post	Frontal area and Drag Coefficient? (Chevrolet HHR) Does anyone know the frontal area of the Chevy HHR? I think the factory Drag Coeffecient is .354. I have lowered it 1.5 inches and put a 4" front air dam on it. Any idea how much that helped (hurt?) the Drag Coeffecient? Any ideas to help Aerodynamics and still maintain the factory look? Thanks in advance. Curly