Mercedes-Benz W 196 R streamlined racing car, 1954

Mercedes-Benz W 196 R streamlined racing car, 1954
2.5-liter Formula 1 streamlined racing car for the 1954 season
  • Engine type
    M 196 R
  • Inlet valves
    1 inclined overhead valve per cylinder, desmodromic valve gear
  • Ignition sequence
    1-4-7-6-8-5-2-3
  • No. of cylinders / arrangement
    8 / in line
  • Outlet valves
    1 inclined overhead valve per cylinder, desmodromic valve gear
  • Configuration
    Front, longitudinal; 53° inclination to the right
  • Valve operation
    2 overhead camshafts per cylinder block, gear drive
  • Ignition adjustment
    Automatically
  • Combustion principle
    Four-stroke Otto (with direct injection)
  • Crankshaft
    10-bearing (roller bearings), Hirth-type crankshaft with central power take-off
  • Bore x Stroke
    76 x 68.8 mm
  • Fuel system
    Direct injection, Bosch 8-plunger injection pump PES 8 KL 70/320/3 RV
  • Total displacement
    2496 cc
  • Spark plugs
    2 per cylinder, Bosch W 290 T 17
  • Fuel supply
    Gear-wheel double-pump
  • Compression ratio
    12
  • Fuel tank capacity
    265 l
  • Maximum / output / rated output
    256 hp at 8260 /min
  • Fuel consumption
    30-40 l
  • Rated torque
    app. 30 mkg
  • Cooling
    Water circulation cooling
  • Maximum revolutions
    9500 /min
  • Lubrication
    Dry-sump lubrication via gear pump
  • Cylinders
    2 steel blocks (of 4 cylinders each) with welded-on cooling-water jackets
  • Oil consumption
    2.5 l
  • Cylinder head
    Not removable, welded together with cylinders
  • Starter
    Not fitted
  • Generator
    Not fitted
  • Battery
    Not fitted
  • Ignition
    High-voltage magneto ignition
  • Ignition system
    Bosch twin magneto MZ/ZJ 08 R
  • Hand brake
    Not fitted
  • Foot brake
    Acting on front- and rear wheels
  • Steering
    Worm-and-sector steering
  • Wheels
    Wire-spoke wheels, central mounting
  • Front tires
    6.00 x 16
  • Frame design
    Tubular space frame
  • Rear tires
    7.00 x 16
  • Front wheel suspension
    Double wishbone, torsion bar springs, telescopic shock absorbers
  • Drivetrain
    By cardan shaft to transaxle and rear wheels
  • Rear wheel suspension
    Single-joint swing axle, longitudinal torsion-bar springs, telescopic shock absorbers
  • Brake system
    Hydraulically actuated dual-circuit brake system
  • Front brakes
    Inboard duplex drum brakes with air-cooled light-alloy drums, 350 mm diameter
  • Rear brakes
    Inboard duplex drum brakes with air-cooled light-alloy drums, 275 mm diameter
  • Transmission
    5-speed manual transmission in unit with differential gear, mounted behind rear axle
  • Shifting
    Gate shift with locking system
  • Clutch
    Dry single-disc clutch
  • Transmission type
    Change-speed gear
  • Gear ratios
    I: 2.4; II: 1.75; III: 1.43; IV: 1.07; V: 0.86
  • Final drive ratio
    2.222*
  • Maximum speed
    over 300 km/h
  • Wheelbase
    2350 mm
  • Front track
    1330 mm
  • Rear track
    1348 mm
  • Length
    4360 mm
  • Width
    1680 mm
  • Height
    1020 mm
  • Vehicle weight
    829 kg**
  • Comments
    * Axle-drive ratios used: Z1/Z2 i 13/41 3.1538 15/42 2.8 16/43 2.6875 16/42 2.625 17/42 2.4706 17/41 2.4118 16/37 2.3125 18/40 2.222 18/39 2.1667 Bevel-gear pair 14/23, i-1.6429 Crankshaft/output shaft 32/36, i-1.125 ** There were no weight regulations in the racing formula; the weight refers to the ready-for-operation status.
  • Engine weight
    204 kg
  • Seats
    1
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