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ContinuousWave: Whaler Performance
100 hp 4-str on BW 15 Super Sport Limited 1987
|Author||Topic: 100 hp 4-str on BW 15 Super Sport Limited 1987|
posted 03-20-2004 07:09 AM ET (US)
I have a 1987 15 ft SSL lying in the archipelago of Stockholm in Sweden. I wonder if someone have experience or knowledge of bigger engine than recommended by the factory. I can get a good deal on a 100 hp Yamaha 4-stroke and now I wonder if this will work. I have today a Johnson 70 hp and a 17 lbs fuel tank.
Many thanks in advance
posted 03-20-2004 07:35 AM ET (US)
Welcome to the forum.
I think the 100hp Yamaha 4-stroke would be way too heavy and would make the boat way overpowered.
Here's a link to a previous discussion on the same topic:
Jimh, I think we may have found us a Swedish translator on the topic of the Yamaha motor spec's. I just can't seem to find that post....
posted 03-20-2004 08:30 AM ET (US)
That 100hp is way too heavy for that hull
posted 03-24-2004 10:48 AM ET (US)
Way too heavy. My 4 stroke 60 hp Yamaha is too heavy on my 15 GLS II in my opinion, I have to put weight (gear ice chest & anchors) forward to trim up and boat squats a full 2-3 inches lower in the water than my GLS I with a 50 HP Johnson two stroke. Water comes in over the transom big time if I pull off throttle to fast and squat with a following sea.
Overhead picture, GLS II on left, GLS I on right.
posted 03-24-2004 02:27 PM ET (US)
I have 1/2 interest in an early 80's 15 foot Sport with my brother in law. While I was out of town, the original 70 horse Johnson quit, he was talked into a 70 Evenrude 4 stroke. Big mistake. When you are underway, you can controll the extra weight. When you are stopped you can not. Too heavy. I also put sand bags in the bow compartment to even it out when it sits on the bouy. It also just looks out of proportion with too big of motor for the boat.
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