Mercedes-Benz 300 SL (W 194 011) racing sports car prototype, 1953

Mercedes-Benz 300 SL (W 194 011) racing sports car prototype, 1953
Racing sports car prototype for the 1953 season which was never used for racing
  • Engine type
    M 198
  • Inlet valves
    1 inclined overhead valve per cylinder, actuated via finger follower
  • Ignition sequence
    1-5-3-6-2-4
  • No. of cylinders / arrangement
    6 / in line
  • Outlet valves
    1 inclined overhead valve per cylinder, actuated via finger follower
  • Configuration
    Front, longitudinal; 50° inclination to the left
  • Valve operation
    1 overhead camshaft, double roller chain drive
  • Combustion principle
    Four-stroke Otto (with direct injection)
  • Crankshaft
    7-bearing (friction bearings with steel backings)
  • Bore x Stroke
    85 x 88 mm
  • Fuel system
    Direct injection, Bosch 6-plunger injection pump
  • Total displacement
    2996 cc
  • Spark plugs
    1 per cylinder, Bosch or Beru
  • Fuel supply
    Bosch piston pump as part of the injection pump
  • Compression ratio
    8.55
  • Maximum / output / rated output
    215 hp at 5800 /min
  • Rated torque
    28 mkg at 4600 /min
  • Cooling
    Water circulation cooling
  • Lubrication
    Pressure circulation lubrication via gear pump
  • Cylinders
    Gray cast iron block
  • Cylinder head
    Light alloy, removable
  • Starter
    Bosch
  • Generator
    Bosch
  • Battery
    12 V
  • Ignition
    Battery ignition
  • Ignition system
    Bosch
  • Hand brake
    Acting on rear wheels
  • Foot brake
    Acting on front- and rear wheels
  • Steering
    Recirculating-ball steering
  • Wheels
    Sheet-steel disc wheels, central mounting
  • Front tires
    8.25 x 16
  • Frame design
    Tubular space frame
  • Rear tires
    8.25 x 16
  • Front wheel suspension
    Double wishbone, coil springs, torsion bar stabilizer, telescopic shock absorbers
  • Drivetrain
    By cardan shaft to differential and rear wheels
  • Rear wheel suspension
    Swing axle, coil springs, telescopic shock absorbers
  • Brake system
    Hydraulically actuated brake system with vacuum brake booster
  • Front brakes
    Duplex drum brakes with air-cooled light-alloy drums, 260 mm diameter
  • Rear brakes
    Duplex drum brakes with air-cooled light-alloy drums, 260 mm diameter
  • Transmission
    4-speed manual transmission, mounted in front of rear axle
  • Shifting
    Center shift
  • Clutch
    Dry single-disc clutch
  • Transmission type
    Change-speed gear
  • Maximum speed
    260 km/h
  • Wheelbase
    2300 mm
  • Front track
    1300 mm
  • Rear track
    1345 mm
  • Length
    4100 mm
  • Width
    1790 mm
  • Height
    1265 mm
  • Vehicle weight
    1035 kg
  • Engine weight
    256 kg
  • Seats
    2
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