Mercedes-Benz Engine
M08
The Mercedes-Benz M08 is a I8 gasoline piston engine.
- Years
- 1928–1939
- Configuration
- I8
- Fuel
- Gasoline
- Top power
- 111 PS
Daimler-Benz’s first eight-cylinder engine, drawn in a hurry and fitted to an old-fashioned car.
Horch had launched its straight-eight in 1926 and Stuttgart had nothing to set against it, so Porsche produced one at speed for the Paris show of autumn 1928: a side-valve eight of 4,622 cc and 80 PS, in the 18/80 PS Typ Nürburg 460. The car around it was the problem. Porsche used the old high frame with straight side members, which made a new model look a decade out of date, and it sold so poorly that finished chassis stood in stock for six years and had to be discounted away.
Nibel put the same engine into a low-frame chassis for 1929, which looked far better and still trailed the Horch. So the engine did the improving instead: 4,918 cc and 100 PS for the Nürburg 500 of 1931, then 110 PS at 3,300 rpm on 6.6:1 compression for the Typ 500 N of 1936, by which point the car would run to 123 km/h. Pope Pius XI was given a specially equipped Nürburg in 1930, which has a fair claim to being the first popemobile. The line ended in 1939 after 3,842 cars, the last Mercedes-Benz offered with wooden-spoke wheels.
Versions.
Every factory version of the M08.
| Version | Displacement | Bore × Stroke | Compression | Power | Torque |
|---|---|---|---|---|---|
| 08 | 4,622 cc | — | — | 60 kW (80 hp; 82 PS) at 3,400 rpm | 237 N·m (175 lb·ft) at 1,200 rpm |
| 08 II | 4,918 cc | — | — | 75 kW (101 hp; 102 PS) at 3,100 rpm | 255 N·m (188 lb·ft) at 1,250 rpm |
| 08 III | 4,918 cc | — | — | 82 kW (110 hp; 111 PS) at 3,300 rpm | 257 N·m (190 lb·ft) at 1,250 rpm |
Applications.
Every model powered by the M08.