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How Low an RPM is too low
I have a 2020 Sundeck 188 IO with a 200HP 4.5L Mercruiser with a 4-bladed prop. It will go 40+ mph but I don't think I have ever seen the RPMs go as high as 3,000. A search of the forums seems to indicate a lot of folks are seeing RPMs in the 3500 - 6000 range, which seems awfully high to me when I think about a car engine (which obviously has a transmission with gearing). Is a low RPM worse on an engine than a high RPM?