Hi Ken,
I worked with you on props for my old Sailfish 23 and hope you can help here. I have a '08 Sailfish 2860 (same hull as newer 290) with twin 3.3 F250s.
The boat came with the stock 21p SWSII props and frankly, it ran pretty well. However, the engines were mounted a hole lower than the Yamaha perf bulletin and I would get a hint of porpoising now and then, so I just figured they needed to be raised a hole. I also had a leftover set of 21p Rev4s, so I threw them on and liked the additional grip...this is still with the motors "low" in hole #2 (second lowest).
Long story short, last month I finally raised the engines one hole (#3) but now am experiencing slip/ventilation on the starboard motor...t was pretty bad last weekend as seas picked up. I do have B175s transducers mounted on each side of the keel about 1-2ft forward of the engines so maybe that starboard side is causing just a bit more disruption.
Obviously I could go back down a hole, but the boat feels better with the engines raised up a hole. I thought about throwing the larger diameter SWS props back on to see if that helps, but wondering if you had any thoughts on different props or some work to be done on the Rev4s.
Also, is there an obvious way to see if the hub is slipping? I'm running Rubex hubs.
Thanks,
Jason
I worked with you on props for my old Sailfish 23 and hope you can help here. I have a '08 Sailfish 2860 (same hull as newer 290) with twin 3.3 F250s.
The boat came with the stock 21p SWSII props and frankly, it ran pretty well. However, the engines were mounted a hole lower than the Yamaha perf bulletin and I would get a hint of porpoising now and then, so I just figured they needed to be raised a hole. I also had a leftover set of 21p Rev4s, so I threw them on and liked the additional grip...this is still with the motors "low" in hole #2 (second lowest).
Long story short, last month I finally raised the engines one hole (#3) but now am experiencing slip/ventilation on the starboard motor...t was pretty bad last weekend as seas picked up. I do have B175s transducers mounted on each side of the keel about 1-2ft forward of the engines so maybe that starboard side is causing just a bit more disruption.
Obviously I could go back down a hole, but the boat feels better with the engines raised up a hole. I thought about throwing the larger diameter SWS props back on to see if that helps, but wondering if you had any thoughts on different props or some work to be done on the Rev4s.
Also, is there an obvious way to see if the hub is slipping? I'm running Rubex hubs.
Thanks,
Jason
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