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Mercedes-Benz M04 engine
The Mercedes-Benz M04 engine is a naturally-aspirated, 3.0-liter and 3.1-liter, straight-6, internal combustion piston engine, designed, developed and produced by Mercedes-Benz; between 1927 and 1928.[1][2][3][4][5][6] M04 engineThe side-valve six-cylinder 2,994 cc engine delivered maximum output of 55 PS (40 kW; 54 hp), but now at the lower engine speed of 3,200 rpm. At the back, however, the final drive ratio was changed from 5.4 :1 to 4.8 : 1, and the listed top speed went up to 108 km/h (67 mph) Having raised the final drive and the top speed for 1927, the manufacturer now moved to offer a choice of ratios, either reducing it back to 5.4 :1 or raising it further to 5.8 :1. The former ratio was described as the “Flachland” (flat lands) version while the latter as the “Berg” (mountain) version. At the same time a small increase in the cylinder stroke accounted for an increase in overall engine capacity to 3,131 cc. Claimed maximum output was unchanged at 55 PS (40 kW; 54 hp), still at 3,200, although there was a measurable increase in torque. ApplicationsReferences
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