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Cheers Jeff it's a 21cabincruiser prob over 2 ton wet, set up for fishing of shore it's a dog in the swell ,will not cruise on 15 to 18 knots,
Cheers Bob, this is same deadrise bertram design aussie built,being a half cab all the weight is aft adding to the problem.
Running an engine in an "over propped" condition forces the combustion chamber temps and pressure to run above "normal" limits... valve damage in inevitable. Over heat a possible immediate side effect..
Precisely!
That condition will also lead to very expensive detonation damage.
In post #1, you mention Bravo 3!I got a 4 blade 15 pitch was thinking of chucking that on it to see what it does, what do you reckon?