C-dory 22 cruiser: Factory Rated HP

Current models, are rated at 115 hp. I believe the increased HP was in about 2002. Prior to that it was 90 hp. No hull changes between your 1993 and the current models. Weight is a factor as well as HP.
 
Hello.. many thanks.. I have looked for some type of sticker on the boat but have not found it.. Current 90 hp.. and looking for duplicate. Honda. 4 stroke to replace current unit..
Have also requested weights of the 75, 90 from factorh.. . Boat does sit below original painted water line by about 2 inches. So, maybe lighter motor.. and/or
raise the anti fouling line as i do keep her in the water.
 
It seems that the 22 is sensitive to fore/aft loading. I have pictures of my boat pretty much level in the water right at the boot stripe. But I have also found color staining and debris stuck on the boat half way up the swim step after a night in a marina.

I'm guessing how much fuel you have onboard, where your batteries are, and how much stuff you have in the cockpit will influence how the boat sits at least as much as the engine weight.

In the C-Dory all the heavy stuff is at the very back of the boat. Having the batteries more forward and saddle fuel tanks towards the front of the cockpit would help a lot at slower speeds. When planing at high speeds the current weight distribution seems to be ok. The C-Dory is a planing hull after all.
 
Hello..ok.. near the helm station.. I'll look again..
As it stands now.. for the minute.. I'll go back with a 90 to replace the one that has died.. The Dory factory is sending me a current sticker for the 90 rating.. I guess that will suffice the Coast Guard and anyone else.
This repower project is hurting my brain.
 
Hello.. it seems like the rating of hp is a moving target...
I think the best for me is to go back with the 90.. .
Many many thanks for the responses..
the Dory-c-Brats forum is really terrific/wonderful..
Best to all. Paul Nelson, New Orleans
 
Plaque 100 hp until 2007. I asked the factory to put on a 115 hp Suzuki around April they said they would do it and leave the plaque off. Boats 21 feet and longer are not required to have one. About 6 months later new plaques had 115 hp printed on them. My boat doesn’t have one still.
 
Hello, Jody..more moving target ! strange.
Just hope none of us get into any trouble with the USCG and or Lawyers should any bad stuff happens to us. Paul. thanks for your input !
 
FWIW, current model 22's from NMI (well at least a 2016, maybe not so current anymore!) don't even have capacity plates. As mentioned above, not required on boats 20' or larger. This is the closest thing to a capacity plate on mine.
IMG_4355_2000x1500.sized.jpg
 
I am in the process of repowering now with a 115. The outboard shop looked at my CD22 and asked me where my rating tag was. I told them that any boat over 21 ft does not have a rating tag requirement, and/or a max HP limit.

The outboard shop owner called the state of Colorado boating compliance officer, and he responded that boats over 21 ft do not have a maximum HP rating, and do not have a requirement for a capacity tag either.

Good thing, too. Since I'll be regularly boating at elevations of 6,000 to 9,000 ft, I'll be needing that 115 HP. I was advised that even with a good fuel injected engine and the right prop, I'm still gonna lose 20% of my power (which is why I got a 115 to replace the 90).
 
Title 33 of the code of federal regulations governs, among other things, maximum horsepower capacity for outboard motor boats. (33 CFR 183.53)


You don't want to be a defendant in a claim for damages where it is alleged that a contributing factor was that your boat was overpowered!
 
Hello Allen and Dgeorges.. Many thanks for your replies. Between the Feds and state regs one certainly needs to be mindful of issues if an accident happens. The lawyers will hang on any potential issue to make a point. .. a point that could bad news for us owners. Paul Nelson
 
Yee haw!!!

Alan":3axmov7l said:
Title 33 of the code of federal regulations governs, among other things, maximum horsepower capacity for outboard motor boats. (33 CFR 183.53)
Click to expand...

I found this detailed at https://www.law.cornell.edu/cfr/text/33/183.53

I made some calculations for a 22' C-Dory Using the criteria referenced above and the computer max Hp capacity is... see my calculations below.

Length = 22’
C-Dory does not have a full transom , so transom width 5.5’ from rear (broadest beam in aftermost quarter length of boat) = 88” = 7.33’
Factor = 22 X 7.33 = 161
The factor is over 52.5, the boat has remote steering and a transom at least 20” in height so…
Horsepower capacity is (2 x factor) – 90 = 232, raised to nearest multiple of 5 = 235 HP

Given the weight is not excessive, I feel comfortable re-powering with 115 hp.
 
Duplicate post. I can't delete it, even though it was only one minutes since I first posted it. All I can do is edit it...
Admin please delete.
 
You have to read the full Code of regulations to apply one section:

183.51 Applicability.
This subpart applies to monohull boats less than 20 feet in length, except sailboats, canoes, kayaks, and inflatable boats, that are designed or intended to use one or more outboard motors for propulsion.
Click to expand...

Basically there are certain guidelines, and there are many more factors than just the beam of the boat, height of the transom etc. A lot depends also on the lamination schedule, and how all of the parts are tied in together.

You would probably be fine with a 115 hp as light as possible.
 
My 2009 22 had twin 40hp Yamahas. If I was repowering I would be looking at twin 50hp Yamahas or 60hp Yamahas. Cost and weight would probably dictate my decision.

Martin.
 
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