Designing a V-6 block solely for marine use allows Mercury to build the 4.5L with the ultimate protection system, using cast-iron componentry where the engine intersects with seawater, and using corrosion-resistant aluminum and composites everywhere else.
Featuring a host of engineering innovations, the 4.5L series establishes new standards for power-to-weight ratio, driver experience, acceleration, durability, and ease of maintenance. This engine is a powerful performer thanks to its new, long-runner scroll intake manifold which draws in more air and converts it into additional torque.
The 4.5L’s newly designed rear-facing throttle body, anti-whistle throttle plate, engine cover and mounts, lightweight flywheel, fuel-supply module, and structural oil pan all work together to deliver a superior idle, smoothness and low vibration. Resulting in an exceptional driving experience.
The new refined throttle turns boating exhilaration up a notch. Holding RPM during hard turns allows the operator to keep both hands on the wheel, which is not only safer, but makes for a more exciting and “sportier” driving experience. Holding a boat on the plane at slow speeds is useful when navigating in following seas or in windy conditions, during tow sport activities, or whenever precision boat control is needed without a lot of speed. With the electronic throttle body, acceleration is significantly more responsive and exciting.
Mercury have completed a comprehensive performance test. The results of this test are published below.
Test Date: 24 August 2016
Boat Weight: 2450 kgs
Air Temperature: 10 c
Sea State: Smooth
Wind Velocity: 12 knots
Fresh/Salt Water: Salt
Fuel Level at Testing: 200 ltr
Top Speed: 35.55 knts @ 4820 rpm
Best Fuel Economy: 0.7nm/l @ 3500 rpm
| RPM | Speed (KN) | Fuel Consumption (L/H) | Fuel Consumption (NM/L) | Range (NM) |
|---|---|---|---|---|
| 640 | 3.85 | 3.25 | 1.2 | 303.9 |
| 1000 | 5.4 | 5.1 | 1.1 | 271.6 |
| 1500 | 7.3 | 8.1 | 0.9 | 228.2 |
| 2000 | 8.9 | 12.9 | 0.7 | 177.0 |
| 2450 | 12.3 | 19.1 | 0.6 | 165.2 |
| 3000 | 17.7 | 26.6 | 0.7 | 170.4 |
| 3500 | 22.8 | 33.5 | 0.7 | 174.6 |
| 4000 | 27.3 | 44.3 | 0.6 | 157.9 |
| 4500 | 31.9 | 60.8 | 0.5 | 134.3 |
| 4820 | 35.6 | 74.1 | 0.5 | 123.0 |
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