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Author Topic:   highest speed for a 17
thebone12 posted 10-14-2002 02:11 PM ET (US)   Profile for thebone12   Send Email to thebone12  
I want to move up in size from my 13ft and love the 17 montauk. I would love to find one and put a (2002)175 johnson on it. Normal set up and all just instead of a 90 put a 175 hp on it. Now before you jump on me, I want you to know that the 175hp johnson 20in shaft only weighs 376 pounds. Less then most 90hp, I am looking for lower 60's mph, What do you guys think!
JBCornwell posted 10-14-2002 02:46 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
I think you are nuts.

Most 2 stroke 90s weigh from a bit below to a bit more than 300#.

Several 4 strokes that seem to suit the Montauk weigh the 375 and more, so you wont be too heavy, just too much push for the boat.

Red sky at night. . .
JB

david whaler posted 10-14-2002 03:13 PM ET (US)     Profile for david whaler  Send Email to david whaler     
There's reasons for hp limits on boats. Some factors include weight of the motor as compaired to the weight limit suggested by the mfg. The beam and length of the boat is another important factor,as is the hight of the transom. With a 17 bw 100 is the max hp suggested by the mfg.
John W posted 10-14-2002 03:23 PM ET (US)     Profile for John W  Send Email to John W     
My father's 17 was skittish at WOT with his Merc 90 on the back. If you want to go so fast (65mph in a 13, etc), why not just stick to boats that are DESIGNED to go that fast, and will actually perform and be (somewhat) safe at those speeds? I can't think of many boats worse for overpowered, high speed stuff than whalers. They're unsinkable, but when you're thrown from the boat at 65mph that doesn't do you much good.
Bigshot posted 10-14-2002 03:37 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
I actually saw a 1985 Montauk with a 1985 Merc 175 on it a couple years ago. Boat was beat but no stress cracks. i would love to do it if I had a 175 laying around for S&G but I would not set out to do it. I think I would do as John says and get me a Pickle fork or something that will do over 90 with the same engine.
thebone12 posted 10-14-2002 05:40 PM ET (US)     Profile for thebone12  Send Email to thebone12     
I just like a boat that is double purpose, and fishing at 5am on a bay that is as flat as can be, you can use that power not so often, but for holeshot, and that rare moment I think it would enhance boating. If I took the 175 hp sticker off the back, no one would know. Just like anything else you have to be smart about things like that and use it carefully. On long Island, I talked to and saw the Town of Oyster Bay Constable boat that had a montauk with a 225 evinrude on it, I was 1 foot away from it with my jaw open. It ran Mid 60s he said. They use it every day! What is the fastest you guys ever got out of a montauk!
FISHNFF posted 10-15-2002 01:40 AM ET (US)     Profile for FISHNFF  Send Email to FISHNFF     
I saw a pristine 16 Nauset with a Merc Black Max 175 2 litre block. The motor looked much smaller than my Merc 90 4 stroke. Come to think of it, my motor looks just like a 135 Optimax moored next to me.

FISHNFF

BQUICK posted 10-15-2002 10:21 AM ET (US)     Profile for BQUICK  Send Email to BQUICK     
I would go with a 150 HP inline 6 Merc.
Find a nice used FW motor. They only weigh 300 lbs.....
With the right prop....maybe a 24 in Laser II she'll fly.
tabasco posted 10-15-2002 12:41 PM ET (US)     Profile for tabasco  Send Email to tabasco     
The boat would Chine walk at 60MPH
thebone12 posted 10-15-2002 04:01 PM ET (US)     Profile for thebone12  Send Email to thebone12     
still at 59mph it would rock!
11 footer posted 10-15-2002 05:17 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
You really have a need for speed.
All of your posts have to do with going fast in boats. No prolbem with that!

11

11 footer posted 10-15-2002 05:20 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
Althow I am with tabasco I think that it would be a little unsafe. If you do it drive with you head, and be safe.

11

raygun posted 10-15-2002 11:25 PM ET (US)     Profile for raygun  Send Email to raygun     
Jeez, just get a flatbottom and be done with it. Blown 502, twin double pumpers with Bassets uncorked and go 120 mph and be done with it. Quit screwing around, if you want to go fast, do it.
counterstrike posted 10-16-2002 03:40 PM ET (US)     Profile for counterstrike    
Stick with a 90 HP (look at the specks for the Jons/Even 90/115 HP models).

Look at what a 90 HP johnson did to this 17 foot whaler bass boat. The pilot died from injuries sustained in the crash.

http://fmbfla.tripod.com/generalphotoalbum/id1.html

11 footer posted 10-16-2002 07:57 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
What did he hit?
The Chesapeake Explorer posted 10-16-2002 10:18 PM ET (US)     Profile for The Chesapeake Explorer  Send Email to The Chesapeake Explorer     
Looks like a pileing. Overpowering did not cause this however. Whalers are boats that are tough fun and unsinkable, they were never designed for real high speeds 60 mph ect..A funny story a fellow who I will call Mr Need for Speed was adding different things to his boat (351 inboard 4 barrel) chrome valve covers,electronic ing, high rise aluminum manifold. well he blew his first motor due to going out early in the season and it froze and broke the block. He transfered his "high speed" parts to his new motor. and I could see where the "monkey grip" he had put on his intake manifold to seal the gasket had oozed all out into the intake ports blocking off about 30 percent of the carb flow! A real "Speed Tuner".. 90-100 hp is plenty on a Montauk.
Bigshot posted 10-17-2002 10:49 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Who's website is that? Why does it just say "look what a 90hp did to this boat" Makes one think that the boat hit a 90hp. Would the damage have been less if he had a 70hp.....I doubt it.
counterstrike posted 10-17-2002 07:27 PM ET (US)     Profile for counterstrike    
I was just pointing out the amount of force a 17 footer with a 90 johnson can('t) endure when hitting a non-moving object.
The boat was "too fast" for the pilot navigating the waters around Fort Myers Beach FL
11 footer posted 10-17-2002 07:40 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
So.........
was it a pileing he hit?

11

counterstrike posted 10-17-2002 07:43 PM ET (US)     Profile for counterstrike    
The cause was of the accedent was not knowing the waters, the damage you see was done by the Mangroves lining a narrow channel
11 footer posted 10-17-2002 08:13 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
OK I have a confession to make.
About 2 weeks ago I was in boston horbor at about 9:00 at night heading back. I had my running lights on. Now I now thes waters very good. There is about a 1 a mile strate away heading to the locks. there is one channl marker one of the big steel one's. I am moving along at WOT looking to my left at all ot the new cars on the pear ready to be shiped over seas. I glace my eyes back were they belong and see I am about 6 feet away from the marker. I did not even try to stop the boat at 35mph. I just cut the wheel and just cleared it. It took a littel time till I realized how close I came. I saw this photo and it gave my chills.

11

11 footer posted 10-17-2002 08:14 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
That is why I asked so many qustions about this.

11

Bigshot posted 10-18-2002 10:42 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
What did you drop a 40 on that to get 35mph:)

We have all done that driving at night. I have had about a 1/2 dozen close calls over the years.

11 footer posted 10-18-2002 02:23 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
Well maby it was not 35mph but it felt like it. : )

11

where2 posted 10-24-2002 06:52 PM ET (US)     Profile for where2  Send Email to where2     
For goodness sake people, if you're going to run flat out in the dark, get a decent GPS so you know where the markers are! While you're at it, think about what you're up to. If you're blindly flying along at a rate of speed greater than your ability to see, what do you do if you encounter a disabled boat? Swamp them as you jerk the wheel to avoid them? I've encountered one too many guys running w/o running lights. I've also seen headlines about one too many night time boating accidents where someone died due to the careless actions of someone else.

Would you drive 40mph down a mile long 2-lane road with your headlights off?

11 footer posted 10-24-2002 09:34 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
GPS on an 11' whaler?

11

Bigshot posted 10-25-2002 09:58 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Handheld....about $99.
thebone12 posted 10-25-2002 10:24 AM ET (US)     Profile for thebone12  Send Email to thebone12     
the only thing that a gps will do is give you a clue where the markers are, and then it must be a $600.00 mapping gps. a $99.00 gps will only will you 40.73n 73.26w and then the marker is at 40.73n 73.27w. People now a days are not aware of the concept of night vision. Not goggles either, if you put a dimmer on your instrument lights and wait 15 to 20 minutes your eyes will adjust to the darkness. Several times when I fish in one stop for a while with only my anchor light on, you can see perfectly no matter how dark. I have built a shield that prevents glare with my running lights and have a dimmer on my instrument lights. Or you can just get a very powerful handheld spotlight for $20.00 and drive at normal speeds.
OUTRAGEOUS22 posted 10-26-2002 06:19 PM ET (US)     Profile for OUTRAGEOUS22    
Tabasco didn't I notice at the CT rendezvous your Garmin gps showing way over 50+ on your new Montauk? I think that you may have first hand knowledge.
John Bocskay posted 10-26-2002 08:38 PM ET (US)     Profile for John Bocskay  Send Email to John Bocskay     
Running at 35MPH in the dark is just plain stupid , I run at night often, there are small boats fishing with NO running lights at all, and if I were running at 35MPH would have hit them or came close to hitting them for sure, not to mention the possibillity of floating debree and there's no way in hell your going to miss that!
11 footer posted 10-26-2002 09:23 PM ET (US)     Profile for 11 footer  Send Email to 11 footer     
Hey.......
Calm down will ya.

11

triblet posted 10-26-2002 10:37 PM ET (US)     Profile for triblet  Send Email to triblet     
thebone12, you need to do more research on
GPSs.

Cartographic GPS start at $249
(eTrex Venture, West Marine Catalog, probably
more like $220 at www.tvnav.com.), not $600.
Agreed, the screen on the eTrex venture is
smaller than I'd use on a boat (I have the
Vista with the same screen and more map
memory, and no butt ugly iMac blue case), but
for $379 (again, West Marine) you can get
a Garmin 162i, which is just fine.

The $99 eTrex Classic (the YELLOW one) will
do more than you say. You can punch up a
waypoint, and it will give range and bearing,
and point an arrow at it. you can punch up
a route (a ordered set of waypoints), and it
will do the same from waypoint to waypoint to
waypoint. This will get you home down the
channel in the dark and fog.

It will do more than just give you a clue --
current WAAS accuracy is about 9 feet,
non-WAAS about 40'.

The most important thing about GPSs is to use
yours when conditions are good, so it's
second nature when the visibility turns ugly.


Chuck

BQUICK posted 10-28-2002 09:58 AM ET (US)     Profile for BQUICK  Send Email to BQUICK     
good luck with the crab pots and debris while you are watching that GPS.
thebone12 posted 10-28-2002 02:45 PM ET (US)     Profile for thebone12  Send Email to thebone12     
he will be the guy that hits the buoy and then argues with the uscg that it should be 53 ft to west. I still think that a gps should only be used to give you a clue! You go ahead and depend on your $99.00 2inch screen on your gps at 35 mph, and please dont run my family over while doing it!
BQUICK posted 10-28-2002 05:44 PM ET (US)     Profile for BQUICK  Send Email to BQUICK     
Like the dude here on Chesapeake Bay a few years back. Put 'er on autopilot and took a nap......hit the bay bridge.
frank_king posted 10-28-2002 08:48 PM ET (US)     Profile for frank_king  Send Email to frank_king     
i gut put a johnson 115 60 degree v4 on my montauk. the prop that came with the motor is a 13-1/2 x 20 raker.....

the prop has seen a lot of shell beds and who knows what else.... the boat is now traveling @ 49 mph... hope to get better gas mileage with new prop.

jimh posted 10-28-2002 09:52 PM ET (US)     Profile for jimh  Send Email to jimh     
Is this the same guy who in another thread is dogging people because a setback bracket is too much stress for a transom?

A 175-HP engine on a Montauk?

thebone12 posted 10-29-2002 12:00 PM ET (US)     Profile for thebone12  Send Email to thebone12     
the 175 johnson weighs less than some 90 hps and some 100hps.
Bigshot posted 10-29-2002 01:41 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Weight has nothing to do with it. A 2.5 EFI 280hp weighs less than most v4's but i think it will stress things out a bit. HP ruins transoms, not weight.
NEVER SCARED posted 10-29-2002 03:26 PM ET (US)     Profile for NEVER SCARED    
If you do put nearly double the recomended hp on your Montauk, will you please post before and after pics? Of your face? Are you one of those guys who yells "Yeeee haaaw" as you speed through the no wake zones? We all seen bad drivers on the road, but when these same guys climb into boats.....God help us!
thebone12 posted 10-29-2002 03:55 PM ET (US)     Profile for thebone12  Send Email to thebone12     
Once you are up on a plane the "Pushing Force" or thrust that is put on your transom is less than what you think. A montauk at full speed will have less force at full speed with a 175 omc than a 90hp honda at subplaning speeds when the hull is just plowing. p.s. I never said I was going to do this anyway, i was just asking for opinions!
whalerdude posted 10-29-2002 06:17 PM ET (US)     Profile for whalerdude  Send Email to whalerdude     
The best thing about my Montauk is the BALANCED HANDLING that it has with the lightweight & very powerful Yamaha 90hp 2 stroke engine that my boat has.

I have measured top speed in chop at 43.5mph with GPS. It planes out quickly and feels extremly competent in most conditions. It does not chine walk and it does not porpoise.

I think that Overweighting is worse than overpowering. And overpowering is not going to be that great either.

Just my $.02

Whalerdude

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