The powerful V8 engines have long been a core competence at AMG, the performance brand of Mercedes-Benz. Christian Enderle, Head of Engine and Powertrain Development at Mercedes-AMG: “With the new AMG 4.0-litre V8 biturbo engine, we present a fascinating and powerful sports car engine, which also achieves the next step in efficiency due to numerous measures“.
The new AMG V8 engine has two turbochargers which are not mounted on the outside of the cylinder banks but rather inside the V configuration – experts call it a “hot inside V“.
The advantages of this layout: the eight-cylinder engine has more compact dimensions, which allow the low installation position as well as optimum weight distribution between the front and rear axles. The “hot inside V“ also optimises the supply of fresh air to both exhaust gas turbochargers. Electronically-regulated blow-off valves guarantee a very immediate and direct response. The maximum charge pressure is 1.2 bar and the turbochargers can reach a maximum speed of 186,000 rpm. For combustion 2.3 times as many oxygen atoms are pressed into the turbo engine than a naturally aspirated engine.
Dry sump lubrication for high lateral acceleration.
The dry sump lubrication allows the engine to be installed in a low position with a lower centre of gravity – ideal for a sports car with extremely high lateral dynamics. As well as the enhanced agility, dry sump lubrication ensures optimum lubrication of the engine through direct oil extraction from the crankcases, even at high cornering speeds.
As a result the M178 (the internal AMG designation) is the world's first sports car engine with hot inner V and dry sump lubrication. The new AMG V8 with a dry weight of 209 kilogram is the lightest engine in its competitive segment.
Performance figures on a par with motor racing.
As the newest member of the BlueDIRECT engine family, the AMG M178 boasts a confident power delivery and performance figures on a par with motor racing. It boasts an emotive and unmistakable AMG V8 engine sound, along with an immediate response and high pulling power.
The torque curve is synonymous with good drivability: the maximum value of 650 newton metre is on hand in a wide range from 1,750 to 4,750 revolutions.
“One man, one engine“.
The AMG 4.0-litre V8 biturbo engine is made in Affalterbach in accordance with the principle of “one man, one engine“. In the AMG engine workshop, highly qualified technicians manufacture the high-performance engines by hand to the strictest quality standards.
The signature of the respective technician on the AMG engine plate attests to this exclusive type of engine production. It guarantees quality and the transfer of technology from the racing series - from Formula 1 and the DTM to the customer sport activities with the SLS AMG GT3.