Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Vortex generators - where's the solid data for hatchback/van benefits?

MetroMPG · 03-13-2012, 08:55 PM

As you have read in this thread, nobody has yet posted any solid, reliable evidence that VG's work at the end of a hatchback bodystyle to improve fuel economy.

I tested airtab style VG's , A-B-A, on both a sedan and minivan and could not detect any change in fuel consumption.

http://ecomodder.com/forum/showthrea...fect-6381.html

http://ecomodder.com/forum/showthrea...olla-2390.html

I wouldn't bother with them, except in very specific circumstances (eg: sedans with steep rear glass and short deck lids).

03-13-2012, 08:55 PM	#66 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,534 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 57.73 mpg (US) Thanks: 4,082 Thanked 6,979 Times in 3,614 Posts	As you have read in this thread, nobody has yet posted any solid, reliable evidence that VG's work at the end of a hatchback bodystyle to improve fuel economy. I tested airtab style VG's , A-B-A, on both a sedan and minivan and could not detect any change in fuel consumption. http://ecomodder.com/forum/showthrea...fect-6381.html http://ecomodder.com/forum/showthrea...olla-2390.html I wouldn't bother with them, except in very specific circumstances (eg: sedans with steep rear glass and short deck lids). __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget