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Author Topic: m20 flywheel conversion fuel economy?  (Read 2035 times)

///m42 sport

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m20 flywheel conversion fuel economy?
« on: April 21, 2009, 11:28:02 PM »
Anyone do this conversion notice improvment/worsening of fuel economy?  driving conservatively of course.
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1991 E30 M42

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m20 flywheel conversion fuel economy?
« Reply #1 on: April 22, 2009, 01:42:11 AM »
im getting 33 on the interstate with a 9 pound flywheel and alot of other mods
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