Mercedes-Benz M 155
| Mercedes-AMG | |
|---|---|
|
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| M 155 | |
| Manufacturer: | Mercedes-AMG |
| Production period: | 2003-2010 |
| Design: | V , eight-cylinder |
| Displacement: | 5.4 liters (5439 cm³) |
| Previous model: | none |
| Successor: | Mercedes-Benz M 159 |
| Similar models: | Mercedes-Benz M 113 |
The M 155 is a V8 gasoline engine from Mercedes-AMG . The supercharged unit was used in the Mercedes-Benz SLR McLaren from 2003 to 2010 .
technology
The M 155 is geometrically based on the M 113 E 55 ML , but has been redesigned due to its increased power compared to the original engine. Like this one, it has three valves per cylinder . The supercharger (which incidentally manages up to 23,000 revolutions per minute) is located between the two cylinder banks of the V-engine. Charge air cooling is also on board. Despite the enormous power, the weight of the motor is 230 kg.
Characteristics
- Cylinder arrangement / number: V8
- Valves / cylinders : 3
- Displacement (cm 3 ): 5439
- Bore × stroke: 97 × 92 mm
In the standard variant of the "normal" SLR, the engine develops 460 kW / 626 hp at 6500 rpm. The torque here is 780 Nm and is available from 3250 to 5000 rpm.
In the SLR 722 presented in 2006 , the rated output has been increased by 18 kW and the maximum torque by 40 Nm. The SLR 722 GT offers even more: with a rated output of 500 kW (680 hp) and a maximum torque of 830 Nm, it currently represents the top performance of the M 155.