Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Lighter valve springs

MetroMPG · 02-02-2009, 08:09 AM

Good find, Pete. Nice to see some numbers on the subject.

They make it clear why Suzuki went with a 2-ring piston on the higher-efficiency Metro XFi rather than the 3-ring pistons in the garden variety engine.

I've never seen any mention of valve spring differences between the two though.

02-02-2009, 08:09 AM	#21 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,527 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: 4,078 Thanked 6,976 Times in 3,612 Posts	Good find, Pete. Nice to see some numbers on the subject. They make it clear why Suzuki went with a 2-ring piston on the higher-efficiency Metro XFi rather than the 3-ring pistons in the garden variety engine. I've never seen any mention of valve spring differences between the two 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