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Old 03-27-2009, 03:20 PM   #1 (permalink)
diggin' the MPGs!
 
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Snowball - '90 Geo Metro
90 day: 51.78 mpg (US)

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compression for a 1990 Geo Metro 3 cylinder w/standard transmission

Hey everybody. What is maximum compression for a 3 cylinder Geo Metro? I've heard that is should be at least at or above 120, but what is "perfect" compression? 150 or higher? And at what point will the car start to crap out....when a cylinder valve hits 90 or something?

Just curious. I'm trying to learn more about what I drive. Thanks.

David

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Old 03-27-2009, 04:42 PM   #2 (permalink)
Batman Junior
 
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Blackfly - '98 Geo Metro
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Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 55.97 mpg (US)

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

Appliance car - '14 Mitsubishi Mirage ES (base)
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See: http://ecomodder.com/forum/showthrea...-xfi-5947.html

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Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
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Ecodriving test: Manual vs. automatic transmission MPG showdown



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