- Technology and Innovation
Turbocharged and Tiny: The Austrian Engine Engineered for Builder Efficiency
The New Performance Standard: Beyond Engine Size
Compact marine propulsion has long been constrained by the physical size and weight of necessary components. Belassi GmbH, an emerging Austrian manufacturer, shattered those constraints at METSTRADE 2025 with its Marine Powertrain Unit (MPU) engine line. Belassi is the only company globally producing a series turbo engine in this specific power-to-weight segment, immediately asserting its position as a technical leader. The focus is simple: deliver exceptional horsepower and torque in a package that fits the most demanding compact applications.
330 HP and 117 kg: The Versatile Engine Formula
The versatile Belassi 330 Turbo is engineered as the definitive solution for compact waterjet boats up to 6 meters. Deliberately designed for superior torque and fuel efficiency, this 3-cylinder, 1602cc engine generates up to 330 horsepower while maintaining an ultra-light 117 kg. This performance foundation, achieved through advanced turbocharging, ensures an uncompromised experience with high operational endurance and responsiveness for recreational and utility transit.
Engineering for Endurance: Dry Sump and Durability
Belassi’s commitment to high performance is matched by its dedication to reliability. The MPU engines are engineered with a full dry sump lubrication system, which is essential for consistent lubrication and longevity in high-G maneuver environments. Further technical features, like NSC coated cylinder liners and a water-cooled intercooler, ensure the engines maintain performance under duress. The use of premium turbo suppliers like Mitsubishi Heavy Industries (MHIET) and Garrett reinforces the engine’s capability for sustained, high-output operation.
The Builder’s Dream: Plug & Play Customization
For boat builders and developers, Belassi offers a crucial business advantage. The MPU is a compact, plug & play solution that simplifies the entire development cycle. It requires only connection to a battery, fuel source, and water hose to start up. Furthermore, Belassi offers the entire powertrain from a single source, including add-ons like jet pumps, throttle levers, brake/reverse systems, and touch screen displays. This ability to obtain pre-tested, certified components drastically reduces hassle and accelerates the builder’s development process.
The Verdict: The Final Word on Compact Speed
Belassi’s presentation at METSTRADE 2025 confirmed its arrival as a serious force in marine engine manufacturing. By focusing on extreme power density, robust engineering, and simplification of the build process, the MPU line has redefined what is possible for compact watercraft propulsion. This Austrian-engineered solution appeals directly to builders who prioritize extreme speed, efficiency, and a simplified production pipeline, ensuring their vessels are at the forefront of the high-performance market.
