Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Dealing with underside airflow & the front bumper (transition radius to undertray)

MetroMPG · 03-18-2008, 11:17 AM

Sounds reasonable - you definitely want a radius between the bumper bottom and the pan, if possible. See the EV-1 for example:

There was a pic out there of Brigham Young U's EV1, shot from underneath the car on a lift that better shows the bumper/front pan transition. But I can't find it at the moment.

What does Hucho say on forward facing transition radii? 2 inches?

03-18-2008, 11:17 AM	#2 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,532 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Even Fancier Metro - '14 Mitsubishi Mirage top spec 90 day: 70.75 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 62.14 mpg (US) Thanks: 4,082 Thanked 6,978 Times in 3,613 Posts	Sounds reasonable - you definitely want a radius between the bumper bottom and the pan, if possible. See the EV-1 for example: There was a pic out there of Brigham Young U's EV1, shot from underneath the car on a lift that better shows the bumper/front pan transition. But I can't find it at the moment. What does Hucho say on forward facing transition radii? 2 inches? __________________ 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