22 Sisu

tunaorlater

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40' Northern bay
I just purchased another 22 Sisu, this one is a cuddy and has a rebuilt 305 v8. The owner of the boat claims 15 knot cruise? Seems a little slow? I know there not fast boats but that's a lot of hp for a little boat. Anyway we are considering converting it to an outboard or maybe leaving the ib in there, whitch do you guys think would be a more marketable way to go?

Also somewhere on here someone put lifting rails on a 22, do they give much more performance? The decks in this boat are solid so we won't be tearing them up so it would either be a plexus job or glass on wood rails if we did install them.

I will post some pictures when I get back from vacation.
 

captchuck

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Long Island
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26' Seaway
An outboard may be beneficial skipping around the bay with al our shallow areas etc...
 

JimRP31

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Below is a link to my SISU refit. The early posts in the thread show the lifting rails. Our decks were solid and I did not want to replace them. We did screw and glue with Plexus. The old rails were too high and not large enough. The boat would roll a lot before they grabbed and they did not grab too well due to their small size. The new rails were a big improvement. We placed them about 6" below the water later. The boat comes up on a plan faster and they eliminated all of the roll. The real bonus was the new rails eliminated the keel walking completely in a following sea. I have a 115HP 4S on my boat so it still rides a little bow up. I think your boat will perform even better since you have the weight of the inboard up forward. Feel free to ask any questions or PM me about the rails.

http://downeastboatforum.com/downeast-projects-boat-building/sisu-refit-1721.html
 

tunaorlater

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40' Northern bay
Thanks guys. JK, what kind of speeds are you getting with the 115hp? I was thinking of putting on a 150 4 stroke. Also how wide are the new rails? Do you have any pictures of the keel or how they reinforced the transome for the outboard?
 

Islandlure

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Jamestown, RI
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Harris 36
Thanks guys. JK, what kind of speeds are you getting with the 115hp? I was thinking of putting on a 150 4 stroke. Also how wide are the new rails? Do you have any pictures of the keel or how they reinforced the transome for the outboard?

Tunaorlater I just finished a sisu 22. I put a full transom in and a bracket. I had a Honda 90 already so I put that on. Haven't put in water yet so not sure of speed. I have pics somewhere.
 

tunaorlater

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40' Northern bay
I have a full swim platform stainless marine bracket in my garage so I am very curious on how your boat runs. Please let me know.
 

JimRP31

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Tunalator I can run at 18K all day. At WOT I hit 25K. I will measure the rails and take a keel photo tomorrow. When I bought my boat the transom had already been replaced. I put 60lbs of lead in the anchor locker to counter balance the engine. I also changed to a four blade prop which help maneuverability at low speeds and helped lower my rpm's.
 

JimRP31

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Islandlure I am in tiverton. Maybe we can meet up this summer and compare notes
 

SHORT STEP

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w/ma
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Tripp / midland
sisu

was that the one that was in Md? looked like a good boat . I couldnt use it as they draw 27 in
bob
 
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