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Old 09-14-2010, 09:17 AM   #26 (permalink)
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Originally Posted by EdKiefer View Post
For sure 2 cylinder made from manufactures are balanced , like all the motorcycle engines , but that not going to stop them from vibrating Harley's are good example .
Harleys are a BAD example. Any decent motorcycle with 2 jugs runs smooth as silk. Harley has a crank that would be great if there were 3 cylinders, instead there are 2; ie, the rods are opposed by 120 degrees instead of 180 degrees.

A properly balanced 600 cc 1 cylinder can run perfectly smooth. And I've had a 6 cylinder Ford 4.0L and a GM 3.8L both running on 3 cylinders, and while they lacked power, they were smooth since it was every other cylinder in the firing order that was disabled.
RIP Maxima 1997-2012

Originally Posted by jamesqf View Post
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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