The MAN i6-730 nad i6-800
The MAN i6
MAN Engines is set to present its latest generation of six-cylinder engines at the Fort Lauderdale Boat Show in Florida, USA. These engines are de-signed to be used in yachts and trawlers up to 55 feet, as well as in sport fishing boats. The basic six-cylinder engine has been tried and tested many hundreds of thousands of times in a wide range of on- and off-road machinery since it was first introduced in 2007. Modified especially for the use in pleasure craft, the two six-cylinder in-line engines, the 537 kW (730 hp) i6-730 and the 588 kW (800 hp) i6-800, each with a cylinder capacity of 12.4 l, are currently available for light duty operations.
The future-proof i6-800 and i6-730 yacht engines, which are based on the D2676 model, also have a modern common rail system offering up to 1,800 bar for high mean pressures and optimized combustion. This enables MAN engineers to achieve lower vibrations and noise emissions along with re-duced fuel consumption. To ensure compliance with strict emissions legislation, MAN shares information and data on a regular basis with institutions including the US Environmental Protection Agency (EPA) and the Interna-tional Maritime Organization (IMO).
The new yacht engines also offer the broad torque plateau that is charac-teristic for MAN marine engines. The 537 kW (730 hp) i6-730 provides 2,450 Nm of torque, while the high-performance 588 kW (800 hp) i6-800 version manages to generate 2,700 Nm at between 1,200 and 2,100 rpm. This provides maximum torque over a broad engine speed range at the lowest specific fuel consumption, achieving consistent acceleration and a fast and efficient planing.