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MetroMPG · 11-10-2009, 12:12 PM

I agree with you on the angle of the roof extension - probably too steep. Aim for an initial angle of no more than 10 degrees from the preceding bodywork and you're likely OK for retaining attached flow. (Better to think in terms of curves than angles also.)

11-10-2009, 12:12 PM	#9 (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 agree with you on the angle of the roof extension - probably too steep. Aim for an initial angle of no more than 10 degrees from the preceding bodywork and you're likely OK for retaining attached flow. (Better to think in terms of curves than angles also.) __________________ 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