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MetroMPG · 08-18-2012, 07:10 AM

Wish I had been here a few weeks ago to suggest that rounded corners at the transition from the top to the sides of the cap are preferable to hard corners as you've got. A radius means less chance of flow tripping into fuel-sucking vortices at the transition.

Looks nice though!

08-18-2012, 07:10 AM	#71 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,541 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: 51.82 mpg (US) Thanks: 4,085 Thanked 6,989 Times in 3,619 Posts	Wish I had been here a few weeks ago to suggest that rounded corners at the transition from the top to the sides of the cap are preferable to hard corners as you've got. A radius means less chance of flow tripping into fuel-sucking vortices at the transition. Looks nice though! __________________ 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