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Author Topic:   170-Montauk Horsepower Rating

Cougar Guy posted 05-15-2003 11:36 PM ET (US)
For people that have this boat, do you think the 90-HP is adequate for a decent load of three adults, gear and fuel? I've noticed that many other boats at that weight have a much higher maximum horsepower rating. Is there something about the hull design of the Montauk that makes it able to get away with less horsepower (like maybe not having to drag a deep v around)?
What do you think are the chances of seeing the hp rating bumped up for next year? I would think the 115 Optimax would make a great engine on that boat. What are your thoughts on overall ride and performance with the 90?
Just curious
jimh posted 05-15-2003 11:47 PM ET (US)
[Changed TOPIC; was "Montauk 170 hp rating...", which was rather humorously misleading.]
Cougar Guy posted 05-16-2003 12:03 AM ET (US)
Oops . . . good catch jimh . . . I can see where that may have gotten people excited :)
tabasco posted 05-16-2003 02:31 AM ET (US)
Nice catch Jim....... I was picking up the phone to call my mercury dealer to ask about trading up ;-)
lakelab posted 05-20-2003 04:57 PM ET (US)
I have found that with four adults, 1 lab, 24 gall gas and the usual accompaniement of coolers, bags etc. the boat can be a little doggie however it still gets on plane quite well. I would of liked the option of the 115 hp but as I use the boat more the 90hp seems to suit me more. At wot with two adults and 1 lab etc., the boat in trim, cruises at 43 mph (GPS read out). However I normally cruise at 4800 rpm and get 38 mph out of it. I cruise an inland river in FL.
Cougar Guy posted 05-20-2003 08:19 PM ET (US)
lakelab, do you have the 4 stroke 90 or the 2 stroke? 43 mph seems like a pretty decent top end for a 90 on a 1400 pound boat!
lakelab posted 05-21-2003 01:46 PM ET (US)
sorry with all that typing i forgot the important item (merc 90 2s) ss prop. that speed was on smooth water, just me on board. maybe even a slight tail wind....
LabRtvr posted 05-22-2003 06:26 PM ET (US)
LakeLab-What brand and pitch SS prob are you running?
lakelab posted 05-22-2003 07:31 PM ET (US)
will have to get back to you later as i am on the road this week. I know the prop is a merc prop. the pitch/diameter i am not sure of. the merc dealer set me up on it though.
lakelab posted 05-22-2003 07:33 PM ET (US)
labRtvr.....black, yellow or chocolate? we have a black.
LabRtvr posted 05-22-2003 11:20 PM ET (US)
Lakelab, Currently have black male (110 lbs solid), his predecessor was a yellow female.
AnthonyT posted 05-27-2003 06:05 PM ET (US)
Yep, performance is slightly slower with yellow labs versus black labs... LOL
At least that is how it reads to me...

AnthonyT
4WHALERS posted 05-27-2003 07:17 PM ET (US)
FYI-
I had an 81' Montauk with a 75 HP "Stinger" Johnson that served me quite well way back when. I then traded on an 87' Montauk with a 90 Yamaha and I thought I had bought a rocket. Great ski boat and just a great all around boat. I recently bought the new 2003 170 Montauk with a 90 4-stroke and have been pleasently suprised by the overall performance of the 4- stroker. Ran it through its second hour of break-in and had several top-end measurements by GPS in excess of 46 mph. Actaully got fater each time we did the wot part of the break-in. Must be seating in the internals. I hear what your saying about possibly more power but in a 1-foot chop yesterday I'm not sure I want any more power in the boat with kids running the wheel. I will say the new hull definately out performs the old hull. Its just more stable.
dukhawk posted 06-06-2003 09:42 AM ET (US)
Hey, 4W- where'd you get the extra 3mph? I seem to remember it was a good, solid 43.....
tabasco posted 06-07-2003 09:14 AM ET (US)
4W- find it hard to believe that you achieve 46MPH with the 90. In order to get an acurate reading you must make two runs one in each direction. You may have had a current of 4MPH when you took your GPS reading.

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Author	Topic: 170-Montauk Horsepower Rating
Cougar Guy	posted 05-15-2003 11:36 PM ET (US) For people that have this boat, do you think the 90-HP is adequate for a decent load of three adults, gear and fuel? I've noticed that many other boats at that weight have a much higher maximum horsepower rating. Is there something about the hull design of the Montauk that makes it able to get away with less horsepower (like maybe not having to drag a deep v around)? What do you think are the chances of seeing the hp rating bumped up for next year? I would think the 115 Optimax would make a great engine on that boat. What are your thoughts on overall ride and performance with the 90? Just curious
jimh	posted 05-15-2003 11:47 PM ET (US) [Changed TOPIC; was "Montauk 170 hp rating...", which was rather humorously misleading.]
Cougar Guy	posted 05-16-2003 12:03 AM ET (US) Oops . . . good catch jimh . . . I can see where that may have gotten people excited :)
tabasco	posted 05-16-2003 02:31 AM ET (US) Nice catch Jim....... I was picking up the phone to call my mercury dealer to ask about trading up ;-)
lakelab	posted 05-20-2003 04:57 PM ET (US) I have found that with four adults, 1 lab, 24 gall gas and the usual accompaniement of coolers, bags etc. the boat can be a little doggie however it still gets on plane quite well. I would of liked the option of the 115 hp but as I use the boat more the 90hp seems to suit me more. At wot with two adults and 1 lab etc., the boat in trim, cruises at 43 mph (GPS read out). However I normally cruise at 4800 rpm and get 38 mph out of it. I cruise an inland river in FL.
Cougar Guy	posted 05-20-2003 08:19 PM ET (US) lakelab, do you have the 4 stroke 90 or the 2 stroke? 43 mph seems like a pretty decent top end for a 90 on a 1400 pound boat!
lakelab	posted 05-21-2003 01:46 PM ET (US) sorry with all that typing i forgot the important item (merc 90 2s) ss prop. that speed was on smooth water, just me on board. maybe even a slight tail wind....
LabRtvr	posted 05-22-2003 06:26 PM ET (US) LakeLab-What brand and pitch SS prob are you running?
lakelab	posted 05-22-2003 07:31 PM ET (US) will have to get back to you later as i am on the road this week. I know the prop is a merc prop. the pitch/diameter i am not sure of. the merc dealer set me up on it though.
lakelab	posted 05-22-2003 07:33 PM ET (US) labRtvr.....black, yellow or chocolate? we have a black.
LabRtvr	posted 05-22-2003 11:20 PM ET (US) Lakelab, Currently have black male (110 lbs solid), his predecessor was a yellow female.
AnthonyT	posted 05-27-2003 06:05 PM ET (US) Yep, performance is slightly slower with yellow labs versus black labs... LOL At least that is how it reads to me... AnthonyT
4WHALERS	posted 05-27-2003 07:17 PM ET (US) FYI- I had an 81' Montauk with a 75 HP "Stinger" Johnson that served me quite well way back when. I then traded on an 87' Montauk with a 90 Yamaha and I thought I had bought a rocket. Great ski boat and just a great all around boat. I recently bought the new 2003 170 Montauk with a 90 4-stroke and have been pleasently suprised by the overall performance of the 4- stroker. Ran it through its second hour of break-in and had several top-end measurements by GPS in excess of 46 mph. Actaully got fater each time we did the wot part of the break-in. Must be seating in the internals. I hear what your saying about possibly more power but in a 1-foot chop yesterday I'm not sure I want any more power in the boat with kids running the wheel. I will say the new hull definately out performs the old hull. Its just more stable.
dukhawk	posted 06-06-2003 09:42 AM ET (US) Hey, 4W- where'd you get the extra 3mph? I seem to remember it was a good, solid 43.....
tabasco	posted 06-07-2003 09:14 AM ET (US) 4W- find it hard to believe that you achieve 46MPH with the 90. In order to get an acurate reading you must make two runs one in each direction. You may have had a current of 4MPH when you took your GPS reading.