Even trolling speed and speed at idle is actually more important that top speed. More important is cruising speed and the fuel consumption there. In any case, while to speed might be important to the local cowboys, few people spend more than a few minutes there and it is not very important in the overall scheme of the engine. Conversely, if it turns more than its rated RPM range, it will develop greater horsepower and go faster. What changed? The bottom, a nick in the prop, added weight, atmospheric conditions? If an engine can’t turn the RPMs in its rated band, it will not develop the rated horsepower. Often the RPMs at WOT are different one test to the next, even with the same engine on the same boat a week later. Fuel consumption is another matter.įinally, the RPMs at WOT should be noted. Our testing over the last 18 years seems to bear this out, as engines with the same horsepower have about the same WOT speed, usually within 1-3 mph, no matter what their brand, if total weights are about the same. However, torque curves generally come together at the top end, making them all similar. But there are other considerations that may have some effect, such as the weight of the engine and its torque curve. Since the prop doesn’t know what brand of engine is turning it, in theory, all 200-hp engines should go the same speed on an identical boat, time and place. That is why the fine-print notations below our test grid are important to read. The interior is in need of new flooring and upholstery, as shown in the photos. And even a small nick in the prop can slow a boat down. 8,000 Pompano Beach, Florida Year 1990 Make Checkmate Model Pulse 186 Category Runabout Boats Length 18 Posted Over 1 Month The hull and topsides appear in solid shape with no major dents or scratches and could shine up nicely with buffing and wax. A dirty bottom will make a surprising difference, even from one week to the next. Conditions, altitude and temperature also affect top speed as does running the boat in fresh and salt water. The prop geometry is another important consideration. The type, specs, design and weight of the boats are the biggest factors. WOT speed depends on dozens of factors, some of which are obvious, other not so much. Question #2: How fast will a 200-hp outboard-powered boat go? The answer depends on a lot of factors, and that is why is in business – to show consumers how boats perform in certain configurations. The Triton 21 TRX powered by a 250-hp 4.6 L V8 Mercury Pro XS, seen here during our tests at near max speed.
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