MercedesBenz W25

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Mercedes-Benz W25

1934 Mercedes-Benz W25


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In its race the W 25 was one kilogramme over the limit. Race manager ordered the paint to be sanded off the first silver arrow was The career of the Mercedes-Benz W25 was brilliant, 16 victories in Grand Prix and major races to its.

In 1934 the German government huge amounts of funding to and Auto Union for development of racing teams. Within 10 Mercedes-Benz, under the direction of Dr. Nibel, completed their version of the racecar, the W25.

The car out as being very unique for the as it had hydraulically operated brakes to with the independent front and suspensions. The suspension setup the need for hydraulic brakes, as the linkage would be too complicated for drums.

The W25´s body was streamlined. To on weight holes were through almost all steel and sections. During the years of to 1936 the W25 featured many engines. These powerplants much alike and mostly by engine capacity. The engine is as follows: M25A 3360cc M25AB 3710cc 398HP, 3990cc 430HP, M25C 462HP ME25 4740cc

In Detail

The Mercedes-Benz SSKL, an successful racing car in the 1920s and 1930s, had served its purpose, from success to success. A new age from 1934: the project for the was the W 25. As to its premiere, Daimler-Benz set its sights on the and Eifel races in the run-up to the Grand Prix on July 1, the second of the season. To win the race in would have been a feat, almost exactly 20 after the one-two-three triumph of (DMG) in Lyon. Eventually, it was an Romeo P3 Tipo B that won the race in Montlhéry, but it was the W 25 which the state of the art.

Mercedes-Benz W25

Hans Nibel was responsible for the project, Max Wagner for the chassis, Heess and Otto Schilling for the In the testing department under Nallinger, Georg Scheerer, one of the fathers of the early supercharged built by Daimler-Motoren-Gesellschaft (DMG), put the through their paces. Weber assembled them, the chassis were put together by Kraus, both men being of the DMG excursion to Indianapolis in 1923. stimuli came from a production car, the Mercedes-Benz launched at the Berlin Motor in February 1933. This set new standards with its independent suspension, double wishbones at the a swing axle at the rear and an in-line engine with supercharger.

The racing engine, even today’s perspective a highly four-valve unit with overhead camshafts, to which two of four combustion units with cylinder head and jackets were welded, the scales at 211 kilograms. The transmission was onto the differential (transaxle to improve the distribution of the axle The supercharger was mounted at its front, two pressure carburettors with air. The tank held 215 98 of which were emptied per 100 at racing speeds. The four and one reverse gear were via a gate with a locking to the right of the driver’s seat.

The car’s frame was composed of two side members with all of which extensively pierced for as on the SSKL. The body was hand-beaten with a large number of louvers. Aerodynamic fairings the front as well as the rear whereas a simple vertical-bar fronted the body with its tapered tail.

The race for 1934 were ready by the of May. At dawn of the Thursday the Avus race on 27 May, von Brauchitsch, Luigi Fagioli and Caracciola took their behind the steering wheels of W 25 cars. In spite of this test, the Mercedes-Benz management the three cars on the grounds they were not ready for yet. Their debut be a week later in the Eifel where the Silver Arrow was born.

Ironically, the 750-kg formula had created to curb the ever-escalating of the powerful racing cars – for example by Alfa Romeo, and Maserati. The very opposite was since design engineers at resorted to bigger displacements. The technicians had envisaged 280 hp (206 kW) for the M 25 A, extrapolating the 85 hp (63 kW) per litre of the supercharged two-litre M 2 L 8 engine with Rudolf Caracciola had won the 1926 Grand Prix on the Avus, and at a theoretical capacity of 3360 cc for the new The actual output of the eight-cylinder at the beginning amounted to a massive 354 hp kW). Several engine with boosted power followed. The M 25 AB (3710 cc) variant 398 hp (293 kW), followed by the M 25 B cc and 430 hp/316 kW) and C (4300 cc and 462 hp/340 kW) and eventually, in 1936, the ME 25 version cc) producing 494 hp (363 kW) – always at rpm.

Mercedes-Benz W25

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