Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - high flow exhaust = 3-5% mpg gain?

MetroMPG · 04-27-2011, 10:57 AM

Unfortunately, by making 2 changes at once (tire size + exhaust), it's not possible to say which one caused the fuel economy change (assuming the change was caused by one of the pair).

FYI, you might like to read this thread: http://ecomodder.com/forum/showthrea...ery-11445.html

BTW, a change from 19 to 23 mpg is a 21% increase.

04-27-2011, 10:57 AM	#24 (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	Unfortunately, by making 2 changes at once (tire size + exhaust), it's not possible to say which one caused the fuel economy change (assuming the change was caused by one of the pair). FYI, you might like to read this thread: http://ecomodder.com/forum/showthrea...ery-11445.html BTW, a change from 19 to 23 mpg is a 21% increase. __________________ 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