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Old 02-07-08, 06:11 PM   #7 (permalink)
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Big-Foot
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Join Date: Jan 2007
Location: Minneapolis, MN
GT40: RCR40 - #45
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Re: Reverse rotation engine and porsche 930?

Most engine's crankshafts are drilled to oil the bearing in a specific direction of rotation. Putting oil to the bearing "after" it has already endured the shock loading of combustion is a quick way to destroy the bearings.. Camshafts - It's been a long time (probably 25 years now) since I've seen one, but there is/was a company that was selling direct gear drives for American V8s. These were to allow you to run a standard camshaft in a reverse rotation engine. Not all engines that were reverse rotation were used in boats. Many were used in Super-Modifieds on asphalt oval tracks..
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