I currently have a 496MPI (425 hp) with Bravo 3 (2.2 ratio with 24p props) in my 32ft (stretched deck) 2858. The current motor has a warranty issue I am trying to resolve with the shop to repair it (long story hopefully to be resolved). But a possible suggested option would be to repower to a Merc 383MPI (350hp). I’d like to cruise at 24 kts and around 3500-3800 rpm.
I like that 383 SB is 500 lbs less weight but I am concerned I’d be underpowered with 350hp esp when loaded with family/gear. The work to stretch the hull added about 500 lbs of fiberglass but also added a lot of floatation- I currently don’t need much trim tab to get on step but on the one trip I made with 496 the fuel economy/range was not as good as I hoped it would be (1.1-1.2 Nmi/gal)- although I was varying the RPM a lot to break in the motor).
Im sure others have repowered a 2858/2859 with the 383MPI. Is it adequate power? What is fuel economy?
I like that 383 SB is 500 lbs less weight but I am concerned I’d be underpowered with 350hp esp when loaded with family/gear. The work to stretch the hull added about 500 lbs of fiberglass but also added a lot of floatation- I currently don’t need much trim tab to get on step but on the one trip I made with 496 the fuel economy/range was not as good as I hoped it would be (1.1-1.2 Nmi/gal)- although I was varying the RPM a lot to break in the motor).
Im sure others have repowered a 2858/2859 with the 383MPI. Is it adequate power? What is fuel economy?
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