Update on Engine Swap
Some of you know that I spent a good part of the beginning of this year converting my Ocean 6.25 to take the Suzuki 200HP EFI Iíd picked up cheap to replace my old Johnson 150VRO.
Now Iíve used it a few times I thought Iíd pass on some findings.
The Ocean is a heavily built boat in my opinion, and has a good sea-going hull rather than an out and out sports hull, just what I wanted when I picked it up in a sorry state 2 years ago. The Johnson 150VRO fitted was always going to be changed.
The VRO used loads of fuel, @2 to 2.5l per NM and gave me around 35Knots max.
I never actually managed to find a prop that suited the boat/engine combination.
I was constantly running around at WOT to keep it on the boil and could only back off WOT very slightly to cruise at around 25Knots.
Harbours, or any sort of speed restriction, were a nightmare as it would oil up after 5 mins. of slow running
The Suzi is averaging @1.2l per NM, and Iíve seen 52Knots on the GPS.
It obviously gets the boat up on the plane a lot easier and is loads quieter.
Iím now cruising at 25knots and around 1/2 - 3/4 throttle at 3500 Ė 4000RPM
The engine came with a 22inch pitch stainless prop that appears to be spot on.
Iím slightly disappointed with the slow speed control, partly as its doing 6Knots the moment it goes into gear, but as Mr Halliday pointed out, thatís probably more about me than a fault with the engine.
There is still some work for me to do to get it exactly how I want it, but at the moment itís like having a new boat again.
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