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Old 12-06-2009, 08:10 PM   #248 (permalink)
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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Last 3: 70.09 mpg (US)

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Originally Posted by MadisonMPG View Post
Wow 15%. That with an alt delete would pretty much = MPG bliss.
Exactly! And the % gain from the alternator delete is going to be proportionately higher with the boat tail than without. Its load on the engine is more or less constant, but the total load has dropped. So I'd expect a better than 10% improvement combined with the boat tail.
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