I have a Chaparral 180SSe with a 3.0 Volvo 4 cyl, 135 hp.
Currently the boat has the 2.18 ratio VP SX-m drive spinning a 23 pitch 3 blade stainless wheel. The boat will still over rev by about 400 rpm (max is 4600, it will spin to 5000 with a light load).
Long story short, the drive is...