Mercedes-Benz M11 engine

Last updated
Mercedes-Benz M11
Overview
Manufacturer Mercedes-Benz
Production1929-1935
Layout
Configuration Inline-6
Displacement 2.6  L (159  cu in)
Cylinder bore 74  mm (2.9  in)
Piston stroke 100  mm (3.9  in)
Valvetrain 12-valve, SOHC, two-valves per cylinder
Compression ratio 5.0:1
Combustion
Fuel system Carburetor
Fuel type Gasoline
Oil system Dry sump
Output
Power output 50  hp (37  kW)
Torque output 100  lb⋅ft (136  N⋅m)
Chronology
Successor

The Mercedes-Benz M11 engine is a naturally-aspirated, 2.6-liter, straight-6, internal combustion piston engine, designed, developed and produced by Mercedes-Benz; between 1929 and 1935. [1] [2] [3] [4] [5]

Contents

M11 Engine

The manufacturer applied the widely followed German naming conventions of the time. On the Mercedes-Benz 10/50 PS the “10” defined the car's tax horsepower, used by the authorities to determine the level of annual car tax to be imposed on car owners. The “38” defined the manufacturer's claims regarding car's actual power output as defined in metric horsepower. In Germany tax horsepower, which had been defined by statute since 1906, was based on the dimensions of the cylinders in the engine.

Unlike the systems used elsewhere in Europe, the German tax horsepower calculation took account both of the cylinder bore and of the cylinder stroke, and there was therefore a direct linear relationship between engine size and tax horsepower. Reflecting the manufacturer's new naming strategy, the car was also sold as the Mercedes-Benz Typ Stuttgart, the Mercedes-Benz Typ 260 and as the Mercedes-Benz Typ Stuttgart 260.

The side-valve six-cylinder 2,581 cc engine delivered a maximum output of 50 PS (37 kW; 49 hp) at 3,400 rpm which translated into a top speed of 90 km/h (56 mph). Power was transmitted to the rear wheels via a four-speed manual transmission, the fourth speed being effectively an overdrive ratio of 1 : 0.76 while the more conventional “top” 1 : 1 ratio was achieved by selecting third gear. The wheels were fixed to a rigid axle suspended from semi-elliptic leaf springs. The braking applied to all four wheels, mechanically controlled using rod linkages. [6]

Applications

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References

  1. ↑ "Mercedes-Benz M11 Engine". Sportlichleicht.com. Retrieved 10 November 2021.
  2. ↑ "MERCEDES BENZ Typ Stuttgart 260 (W11) specs & photos - 1929, 1930, 1931, 1932, 1933, 1934". Autoevolution. Retrieved 10 November 2021.
  3. ↑ "MERCEDES BENZ Typ Stuttgart 260 Cabriolet A (W11) specs & photos - 1929, 1930, 1931, 1932, 1933, 1934". Autoevolution. Retrieved 10 November 2021.
  4. ↑ "Mercedes-Benz W11 Roadster 1929". Xar.info. Retrieved 10 November 2021.
  5. ↑ "8/38 hp and Stuttgart 200 / 260 (W 02, W 11), 1926 - 1936". Mercedes-benz-publicarchive.com. Retrieved 10 November 2021.
  6. ↑ Oswald, p 219
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