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board brained

Top RPM of the 320

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board brained

hey what is the top rpm for the 320 LCR MPI....I thought they are to max out at 4800 RPM. Mine will climb to 5100.....

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Bobby Light

thanks, wonder why i can run mine up to 5100....and if this is harmful?

As long as the governer kicks in you're fine. Maybe you just got a good one :thumbup: .

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board brained

As long as the governer kicks in you're fine. Maybe you just got a good one :thumbup: .

this is canada maybe it is in metric :-)

even at 5100 I think it is only doing 42 mph...maybe 43...but I did not stay at 5100 for more than 2 seconds as I thought I was "doing bad things to it"

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Woodski

The actual speed is not really that important to the engine, you can change that ratio with a different prop. A small block Chevy engine can easily handle 5100 rpm, even higher won't hurt them. If the boat is new, I would recommend following the break in procedure established by the supplier, probably Indmar in your case.

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board brained

The actual speed is not really that important to the engine, you can change that ratio with a different prop. A small block Chevy engine can easily handle 5100 rpm, even higher won't hurt them. If the boat is new, I would recommend following the break in procedure established by the supplier, probably Indmar in your case.

yep did that, as painfull as it was went exactly by the book.......

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