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MetroMPG · 03-23-2009, 11:46 PM

I'd wager it's close to benign.

The flow on the side of the car is more than likely predominantly horizontal. The spoiler's orientation is horizontal. For the small amount of spoiler surface that might be exposed to flow wrapping around the side/rear transition before going turbulent, I just don't see it doing anything significant.

I also don't think the pic shows the spoiler extending to the "side" of the car. I think it's 100% behind the belt line of the greenhouse.

03-23-2009, 11:46 PM	#18 (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	I'd wager it's close to benign. The flow on the side of the car is more than likely predominantly horizontal. The spoiler's orientation is horizontal. For the small amount of spoiler surface that might be exposed to flow wrapping around the side/rear transition before going turbulent, I just don't see it doing anything significant. I also don't think the pic shows the spoiler extending to the "side" of the car. I think it's 100% behind the belt line of the greenhouse. __________________ 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