Turns out that my boat is a Holland 32 that was built out here on the west coast by a licenced builder in the 80's. Currently has a PCM 351W (240hp), BW 72 Series 1:1 trans and a Walter RV-26 v-drive. Very happy with the performance, not so much with the fuel consumption or sleeping around 100+ gallons of gas with the family.
Thinking about repowering to a diesel, would like a cruise of about 12-14 kts, which is an apparent sweet spot for the 32, and a WOT of 16-18. One online prop calc I found suggests ~120hp for cruise and ~200hp a WOT of 16 knots. Need to spend the $50 to confirm all this @ boatdiesel.com
I understand that the easy answer is likely to be a 6BT, but I am not keen on loosing the deck space and having to rebuild the deck/engine box, etc.
The next answer could be a Yanmar 4LHA-STP, but at $25k it's a challenge to my Scottish heritage. One local dealer suggested a Hyundai Seasall V-6 ($17k). It is marketed as a direct replacement for a V8 gasser. I like the concept, but at this point I think it would put me too far out on the Bleeding Edge. Plus I have too many memories of seeing Hyundai Pony's dead on the roadside.
Another option I thought of would a 4BT, I am aware of the inherent issues with them but was thinking that @ 200hp, could be a reasonable fit. Looking at what the swap guys are doing with these motors in on-road applications it seems as though it is possible to get a reliable 200hp out of them in the long term (only 50hp/hole).
Some of the sister ships apparently had a TAMD40 (165hp) and cruised at 12-13 knots, but that's an old motor that I just want to avoid, plus I doubt it would fit.
I had a chance to get a 4BY2-180 for $5k but decided to not pull the trigger because I thought the application would be too abusive for that engine.
What other options are out there that I am missing? 200hp, same or smaller footprint as a small block V8. What is the common answer for y'all out east?
Cheers
Dave
Thinking about repowering to a diesel, would like a cruise of about 12-14 kts, which is an apparent sweet spot for the 32, and a WOT of 16-18. One online prop calc I found suggests ~120hp for cruise and ~200hp a WOT of 16 knots. Need to spend the $50 to confirm all this @ boatdiesel.com
I understand that the easy answer is likely to be a 6BT, but I am not keen on loosing the deck space and having to rebuild the deck/engine box, etc.
The next answer could be a Yanmar 4LHA-STP, but at $25k it's a challenge to my Scottish heritage. One local dealer suggested a Hyundai Seasall V-6 ($17k). It is marketed as a direct replacement for a V8 gasser. I like the concept, but at this point I think it would put me too far out on the Bleeding Edge. Plus I have too many memories of seeing Hyundai Pony's dead on the roadside.
Another option I thought of would a 4BT, I am aware of the inherent issues with them but was thinking that @ 200hp, could be a reasonable fit. Looking at what the swap guys are doing with these motors in on-road applications it seems as though it is possible to get a reliable 200hp out of them in the long term (only 50hp/hole).
Some of the sister ships apparently had a TAMD40 (165hp) and cruised at 12-13 knots, but that's an old motor that I just want to avoid, plus I doubt it would fit.
I had a chance to get a 4BY2-180 for $5k but decided to not pull the trigger because I thought the application would be too abusive for that engine.
What other options are out there that I am missing? 200hp, same or smaller footprint as a small block V8. What is the common answer for y'all out east?
Cheers
Dave
