Browse Publications Technical Papers 920674
1992-02-01

The Mercedes-Benz Group C Engines for the World Sports Prototype Racing Championships 1989 and 1990 920674

The M119 HL, a twin turbocharged V8-5 I-engine, was developed by Mercedes-Benz AG for Group C World Championship Race events based on the production engine used for the Mercedes-Benz passenger car range. *
Due to the fuel consumption limitation for Group C-Cars - 51 litre/ 100 km - a high efficiency race engine was required to achieve the target fuel consumption during race events using a commercially available “pump” fuel.
Given these restrictions, the latest version of the M119 HL-engine had a power output of 530 kW and minimum brake specific fuel consumption values of 235 - 260 g/kWh over the engine speed range.
This paper discusses the conceptual ideas behind the design of such a high-performance engine with optimized fuel consumption, especially concerning turbocharging and engine management.
Furthermore, the development of the engine's mechanical components is shown in comparison to the series production engine design.

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