Mercedes-Benz M194 engine
| Mercedes-Benz M194 | |
|---|---|
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1952 |
| Layout | |
| Configuration | Straight-six engine |
| Displacement | 3.0 L (2,996 cc) |
| Cylinder bore | 85.0 mm |
| Piston stroke | 88.0 mm |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium alloy |
| Valvetrain | SOHC |
| Compression ratio | 8:1 |
| Combustion | |
| Fuel system | 3 2-barrel Solex carburetors |
| Fuel type | Petrol |
The M194 is a straight-six engine produced by Daimler-Benz in limited numbers for its 1952 W194 300SL sports car racer that was entered in endurance races, winning most of them.
Design
The M194 is based on the M186 engine from the then-new W186 300.[1] It is a four-stroke engine with three Solex carburetors and two valves per cylinder.[2] The engine is titled 50 degrees to the left in order to reduce the height of the hood, and uses a dry sump lubrication system instead of an oil pan and reservoir.[3] It is also mounted behind the front axle for better weight distribution.[4] Only 10 M194 engines were made for the W194 300SL racer; the first three cars had around 170 hp (127 kW), while the remaining seven had around 180 hp (134 kW).[5]
300 SL Kompressor (M197)
For the Nürburgring sprint race event that supported the 1952 German Grand Prix, which did not favour endurance over power, Mercedes had announced a surprise.[6] One car was fitted with the M197 engine version that had a blower, which was permitted in the "S 5000-8000cc" class, with the supercharged 3 litre treated as 6 litre. This "300SL K" had a bulge[7] on the left side of the hood for the additional Kompressor, and was only used in practice, by Kling. Being tested but not raced at a GP race weekend, it basically was the last Mercedes-Benz supercharged Grand Prix racing engine. The normal cars won 1-2-3-4 anyway.
Models
| Engine | Power | Torque | Years |
|---|---|---|---|
| M194 | 125 kW (168 hp) at 5,200 rpm |
256 N⋅m (189 lb⋅ft) at 4,200 rpm |
1952 |
Application:
- 1952 W194 300SL
See also
References
- ^ "New in its full splendour: the oldest SL | marsMediaSite". marsMediaSite. Retrieved 2018-08-16.
- ^ "Mercedes-Benz 300 SL (W 194) racing sports car, 1952 | marsClassic". marsClassic. Retrieved 2018-08-16.
- ^ "One of History's Most Beautiful Cars May Also Be the Most Innovative". WIRED. Retrieved 2018-08-16.
- ^ "Legend - 1956 Mercedes-Benz 300 SL". www.hemmings.com. Retrieved 2018-08-16.
- ^ "1952 Mercedes-Benz 300SL W194 00002 - Motor Trend Classic". Motor Trend. 2013-01-09. Retrieved 2018-08-16.
- ^ https://mercedes-benz-archive.com/marsClassic/searchresult/searchresult.xhtml?searchString=PRMIT16157&searchId=3&searchType=detailed
- ^ https://mercedes-benz-archive.com/marsClassic/en/instance/picture.xhtml?oid=4139102