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Safe Cruising rpm

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Old 10-31-2007, 06:19 PM
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Default Safe Cruising rpm

what is a safe cruising rpm for a 1989 350 magnum the wot operating range is 4200-4600 thanx Chris
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Old 10-31-2007, 07:59 PM
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to be 100% "safe".......0 rpm's . The best mix of speed and effeciency would be 3,200-3,300 in most boats.
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Old 11-01-2007, 09:03 AM
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I always ran about 35-3600rpm with no trouble
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Old 11-01-2007, 09:20 AM
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3250 should provide the best economy, "keeping you out of the 4 barrels" as my brother in law would say. (if equipped). My throttles have a notch that keeps them RIGHT at 3225-3250, according to my tachs anyway.
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