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Author Topic:   40 HP on 17' Montauk
weq posted 09-09-2002 05:35 PM ET (US)   Profile for weq   Send Email to weq  
I am considering buying a 2001 17' Montauk for a fishing/utility boat and a boat for my kids to run around in. In Canada, kids under 16 can only operate boats up to 40 HP. Does anyone have an idea of the top speed performance I can expect with a 40 HP 4 stroke Mercury? Will I be able to tube/ski with the kids?
EddieS posted 09-09-2002 07:39 PM ET (US)     Profile for EddieS  Send Email to EddieS     

I doubt that the 40 would be powerful enough to ski with. I know that some of the guys are running 50 and 60 four strokes on their 17's one of those guys will probably chime in and give you some information.

How about going with one of the smaller hulls which would have better performance with a smaller motor.


Salmon Tub posted 09-09-2002 08:17 PM ET (US)     Profile for Salmon Tub  Send Email to Salmon Tub     
Weq, I had a 40 Tohatsu on my 17 and I was able to get the following: By myself: 20 mph at 4000rpm, 29+ mph at 5500 rpm, wind at my back. With 1 passanger, 18 mph at 4000 rpm, 25-26 mph at 5300 rpm. If you pull a tube, you will be ok, forget skiing.
Dick posted 09-09-2002 11:15 PM ET (US)     Profile for Dick  Send Email to Dick     
I did a speed/rpm run yesterday to give me a base for a new prop selection.
99 Montauk, 99 Merc 50/4 stroke gross weight 1700#s.
A touch over 32 mph at 5800 rpm.
The run was done on a lake with no wind, speed is by GPS.
PFSQUAN posted 09-10-2002 07:56 AM ET (US)     Profile for PFSQUAN  Send Email to PFSQUAN     
Had a 45 Honda on my 17 Tashmoo for a summer when the engine first came out, the summer of 1992. Top speed with one person was 26 knots on the GPS and 30 mph on the radar gun.
weq posted 09-10-2002 10:19 AM ET (US)     Profile for weq  Send Email to weq     
Ed, the other boat that I have been considering is the new 150 Sport as I want something with reasonable size to haul gear out to the cottage (water access only). I'm not sure performance will be much different because the weight is close to the Montauk (900 lbs vs. 950 lbs) and I understand hull design is similar.
Bigshot posted 09-10-2002 10:33 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Get the Montauk then upgrade when they turn 17 or so. Even a 15' with a 40 would be tough to ski behind. The montauk will pulla skier if they are light and worse case scenario, drop a ski. I used to ski behind a 13 and a old 25hp, just had to drop one once up.
Taylor posted 09-10-2002 02:45 PM ET (US)     Profile for Taylor  Send Email to Taylor     
The minimum horsepower for a 17 is 35. That's one of the nice things about them, they don't take much power to plane.

But get a 50, and swap the decals or just pull them off. Or if you want to be really legal, get a 50, or even a 60, and have it rev limited or something so it only produces 40.

As I've mentioned before, our old 11' sport had a 25 'detuned' to 20 to meet the maximum power allowed on the boat. Was it really detuned? No idea, but it was set up that way by the dealer, and we never ran into a legality challenge.

shoctor posted 09-11-2002 02:53 PM ET (US)     Profile for shoctor  Send Email to shoctor     
My .02 Get the 60 or 70 hp take the decals off forget detuning and run the boat I have never seen a constable with a dyno on the boat here in NY where I have gone on several HP restricted lakes. I think it is more of a rule of thumb so that a 15 kid with hormones raging and matching brain don't start pushing 200 hp rocket sleds around. I would be shocked and amazed if they stopped a whaler and started asking about the HP unless the boys were up to something that would draw attention to themselves. my .o2
Bigshot posted 09-11-2002 03:43 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
If they do get busted doing something stupid, say it was stolen and let them rot in a Yukon Jail and serve Bubba for a few years. That will teach them to jump wakes, etc:)

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