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I own several classic whalers and am currently restoring an 1979 Guardian Divemaster 22'.
I know a lot of these boats have twins and I believe this boat had twins originally. This boat will be used for traveling, a T/T behind a sportfish. I am certain on twins for needed redundancy, and have decided in Suziki's for a few reasons, cost is not one, anyway, soliciting some input regarding the hp. I want to use a 175hp suzuki, weight is 531lb. Im worried that it will be too much weight, although the 140hp is only ~100lb difference, per motor. Any body have experience in this? the hull i think is similar to the outrage but commercial/heavy duty built. Many thanks for any input......

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I have a 22 whaler guardian divemaster with a whalerdrive. Boat performs better with lighter motor(s). I have run numerous yamaha four strokes on this hull. Yamaha twin f150s, single yamaha f225, f250, f300 and currently f350. Best motor for that hull was the single yanaha f300. Again, my vessel is a 1990 whaler 22 guardian divemaster with the factory fiberglass whalerdrive. Hull has 32,000 hours+ and has been repowered 14 times.......

You have the 129gal tank?

Boat gets used and used quiet a bit.

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Open transom max engine weight is around 720 lbs. +/-. Whalerdive configurations you can add another 100 lbs +/-....

At 1060 lbs, you will be disappointed with results especially when a single yamaha f300 will come in at half that weight (566 lbs), better fuel efficiency, bwtter handling and definitely faster.

If you have open transom and 129 gal tank, strongly advised to stay with lighter motor weights.

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Thanks much for the info. I had a single Yam SHO for it but decided agaisnt a single since we will be traveling remote locations and the twin provides necessary redundancy. At this point I am going to rig twin 140hp suzukis, they weigh about 400lbs each. I can always swap out to bigger if needed, but happy with my selection. I know it originally had twin 150hp Johnsons, at roughly the same weight. They were two strokes, obviously in 1979. I had a custom 80gal tank made for the boat, thinking that will be enough fuel. I cant thank you enough for the info and guidance, please dont hesitate to jump in anytime with additional thoughts.

Thanks Martin

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Martin,

Those twin Suzuki DF140As seem like a good match for your requirements.

My only other suggestion would be to compare closely against the Merc 115 Fourstroke with Command Thrust (CT) gearcase.

The Mercs have a bit more displacement (2.1L) than the Suzukis, and importantly weigh about 40 lbs less (each). They are very strong engines, offering more HP than is indicated on the cowl decal (whereas the Suzuki DF 140 is known to offer somewhat less HP than the cowl decal). They also have many features that minimize maintenance (timing chain, self-adjusting valves, quick-easy oil change, etc).

When I have priced them, the Mercs were less expensive.

I beliece there is at least one member here on Whaler Central that has repowered his Outrage 22 Whaler drive from twin 150-2-strokes to twin Merc 115 CT FOurstrokes, reporting very satisfactory results. Total weight is in the low-mid-700 lbs.

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Thanks so mcuh for the great information. I am a mercury fan but based on the areas we are traveling the Suzuki's are better for service and parts, I have for the most part committed to the Suzuki's. I'm not terribly worried about making the wrong decision because we can always change out for the Mercs or larger HP down the road, doesn't have to be permanent or final engine selection if we are not happy.
I real appreciate the advise and you taking the time to provide it.

Thanks Again-
Martin

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Understood on your reasoning. Those Suzuki DF140As should be a great combo.

Please report back on performance results once you get them mounted. We get a lot of questions ahead of time but don't always hear the final result. If you can give some feedback, others will benefit from your experience.

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I will absolutely post the reports, speed, GPH, and transom weight impact. While the hull is heavier, it would be similar for those who have the 22' outrage, I would think.

We are adding a teak floor, covering boards, teak rub rail with a stainless insert and of course, general rigging. I think it will be mid to late may before we are in the water.
Looking for a custom hard/ttop now. probably contact Pipewelders, they built the tower on our big boat.


So if you do not see results immediately, stand by. Thanks again for your input and time.

Martin