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Old 01-05-2008, 04:30 PM   #2 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,521

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

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 52.48 mpg (US)
Thanks: 4,077
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Beaver replied...

Originally Posted by Beaver
Yes, I did a quick compression check, and the cylinders were low (@150), but about equal. The check was done on a stone cold engine however, so I'd expect low readings. It's a high mileage engine at 158,000 miles. I think it may be idling too low, as you mentioned, but isn't the idle speed set by the ECU? If not I could pick it up a couple of hundred rpm's and that would go a long way toward smoothing it out.

I haven't ever had a 3 cyl before, so I have nothing to compare it to except 4,6 & 8's.

I have to take it out for a short drive in a little while, and I'll ty to note whether or not it feels rough under acceleration or at speed. Thanks again, and I'll put some cars in the "garage."
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

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