View Single Post
Old 11-28-2007, 04:06 PM   #3 (permalink)
Batman Junior
MetroMPG's Avatar
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,339

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 73.57 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)
Thanks: 3,124
Thanked 5,976 Times in 3,098 Posts
Originally Posted by 95metro
So it's just the torque difference between the 3 and 4 cylinder that makes it bearable with the 4? Any possibility of keeping the 3-cylinder final drive and just changing the 3rd, 4th, and 5th gears to smaller sizes?
It's all about the torque. I guess that's possible. But where to get the gears? Also, that would mean taking the tranny apart, which is slightly scarier and requires special tools, I think.

A straight swap should theoretically only take a couple of hours:

- remove starter
- detatch steel lower rad tube bolted on top
- disconnect clutch cable, reverse switch wires, speedo cable
- remove axles
- support engine
- unbolt & remove tranny
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
  Reply With Quote