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Old 10-14-2012, 01:33 PM   #1343
pierce
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Joined: Jan 2003
Location: S'Cruz
Oddometer: 10,044
Quote:
Originally Posted by Gimpinator View Post
^^^^^ Offset crank.

Yes. Henry Ford did an offset crankshaft on the production Flathead V8 starting in 1932. Offsetting to the thrust side does indeed give you a bit more mechanical advantage on the power stroke, but it makes it difficult to keep the pistons from slapping.
hmmm. thinking some more... its kinda hard to offset for power BOTH sides of a V engine unless its really asymmetrical. the drawings with the dashed lines for hte piston centerlines in that video showed both sides meeting at a point directly below the crank. to gain the thrust advantage, that virtual meeting point would need to be offset to the 'down' side of the crank...
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