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  190 Montauk - 135 Verado Performance

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Author Topic:   190 Montauk - 135 Verado Performance
Jefecinco posted 05-19-2012 09:58 AM ET (US)   Profile for Jefecinco   Send Email to Jefecinco  
After seven hours of fishing yesterday I decided to "blow out the carbon" with a few minutes at WOT [with the Mercury 135-HP VERADO FOURSTROKE on a Boston Whaler 190 MONTAUK]. The water was very flat with just a few ripples, the air temperature was 93-degrees, we had about 40 gallons of fuel, two anglers for about 350-lbs, a cooler full of ice and two dozen trout, plus miscellaneous boating gear and tackle. The breeze was negligible and coming from the side. There was a slight tidal flow from the front.

The engine turned approximately 5,950-RPM, the GPS indicated 39.9-MPH SOG [speed over ground], the paddle wheel speedometer indicated 40-MPH STW [speed through the water], and the engine was trimmed out quite a bit. The boat was a little squirrely and the hydraulic steering was stiff due to the extreme engine trim. The trim was so extreme that when we reduced speed the boat porpoised almost violently.

The Montauk's performance was very close to the test performance published by Boston Whaler for this boat and engine combination. I'm pretty satisfied. Butch

jimh posted 05-19-2012 07:19 PM ET (US)     Profile for jimh  Send Email to jimh     
Thanks for the report on your boat performance testing. When you equal (or exceed) the results the factory obtained, you can be confident your boat is performing as it should.
fishinchips posted 05-08-2014 11:48 PM ET (US)     Profile for fishinchips  Send Email to fishinchips     
I have the 190 montauk with a 115hp outboard.
3/4 tank of fuel, single person approx 170#, kicker motor (6hp).
She ran at wot 6200 rpm @ 39mph per gps (garmin 5212)

Ken

fishinchips posted 05-09-2014 12:25 AM ET (US)     Profile for fishinchips  Send Email to fishinchips     
forgot to mention. I have the Cobra stabilizer plate on the motor. She did not porpoise. She ran straight and level. Trimmed her up while at wot and the cable steering was fine.

Ken

Teak Oil posted 05-09-2014 07:32 AM ET (US)     Profile for Teak Oil  Send Email to Teak Oil     
The porpoising was probably due to over trimming. Once you stop gaining speed trimming higher only causes ventilation gaining rpms.

Raising the motor a hole or two would let you get to top speed using less trim, but it sounds like you are happy with your performance so far.

What kind of prop do you have?

Jefecinco posted 05-09-2014 07:29 PM ET (US)     Profile for Jefecinco  Send Email to Jefecinco     
I'll have to get back to you on the propeller as I'm out of town and took the Sport 13.

I'm considering raising the motor but am not in a hurry. I'll probably do it in conjunction with the next engine and lower unit oil change.

The boat was pretty heavily loaded at the time of the test.

Butch

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