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  Mercedes-Benz W25K
 

  Article Image gallery (2) Specifications  
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Country of origin:Germany
Produced in:1936
Predecessor:Mercedes-Benz W25
Successor:Mercedes-Benz W125
Author:Wouter Melissen
Last updated:July 21, 2009
Download: All images

Engine
Configuration ME25 Straight 8
Location Front, longitudinally mounted
Weight 211 kilo / 465.2 lbs
Construction forged-steel block and head
Displacement 4,740 cc / 289.3 cu in
Bore / Stroke 86.0 mm (3.4 in) / 102.0 mm (4 in)
Compression 7.4:1
Valvetrain 4 valves / cylinder, DOHC
Fuel feed 2 Mercedes Carburettors
Aspiration Roots-Type Supercharger
Power 453 bhp / 338 KW @ 5,800 rpm
BHP/Liter 96 bhp / liter

Drivetrain
Chassis aluminium body on box-section steel frame
Front suspension double wishbones, bell-crank actuated horizontal coil springs, friction dampers
Rear suspension DeDion axle, transverse quarter-elliptic leaf springs, friction dampers
Steering worm-and-nut
Brakes Lockheed hydraulic drums, all-round
Gearbox 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 750 kilo / 1,654 lbs
Length / Width / Height 4,040 mm (159.1 in) / 1,770 mm (69.7 in) / 1,160 mm (45.7 in)
Wheelbase / Track (fr/r) 2,460 mm (96.9 in) / 1,473 mm (58 in) / 1,412 mm (55.6 in)

Performance figures
Power to weight 0.6 bhp / kg

Race history
Major wins
1936 Monaco Grand Prix (Rudolf Caracciola)

Resources
Suggested reading
  • The Grand Prix Car, by Laurence Pomeroy
  • Classic Racing Cars, by Cyril Posthumus
  • Classic Grand Prix Cars, by Karl Ludvigsen
Useful links

  Article Image gallery (2) Specifications