Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - "Bumps" on OEM Subaru Impreza roof racks supposedly improve MPG

kach22i · 12-22-2011, 04:00 PM

This is what they used to do, looks pretty good according to what I know of the topic. I'm just thinking maybe they are not all BS.

Just maybe vortex control is more important than drawing the air downward.

12-22-2011, 04:00 PM	#10 (permalink)
kach22i Master EcoModder Join Date: Jul 2011 Location: Ann Arbor, Michigan Posts: 4,158 Thanks: 120 Thanked 2,790 Times in 1,959 Posts	This is what they used to do, looks pretty good according to what I know of the topic. I'm just thinking maybe they are not all BS. Just maybe vortex control is more important than drawing the air downward. __________________ George Architect, Artist and Designer of Objects 1977 Porsche 911s Targa 1998 Chevy S-10 Pick-Up truck 1989 Scat II HP Hovercraft Chin Spoiler: http://forums.pelicanparts.com/off-t...effective.html Rear Spoiler Pick Up Truck http://forums.pelicanparts.com/off-t...xperiment.html Roof Wing http://ecomodder.com/forum/showthrea...1-a-19525.html