BMW E41

BMW E41 / 4 R39-9

The BMW E41 was a Formula 1 - V10 -Motor the Bayerische Motoren Werke .

BMW was an engine supplier to the Brabham Formula 1 team from 1982 to 1987 . With the turbo-charged in-line four- cylinder BMW M12 / 13 , the team became world champions in 1983. In addition to Brabham, ATS, Arrows and Benetton also drove with BMW engines at times. After BMW officially withdrew from Formula 1, the engines were used in 1988 under the name of the US company Megatron until turbo engines were banned in 1989.

However, BMW did not completely abandon the design of Formula 1 engines. Various 3.5 liter twelve - cylinder naturally aspirated engines were created . A new set of regulations stipulated ten-cylinder engines with a maximum displacement of 3 liters, which resulted in the BMW E41 / 2. This formed the basis for the BMW E41 / 4 V10 engine with a cylinder bank angle of 72 °.

The BMW E41 / 4 was first used in the Williams FW22 when BMW returned to Formula 1 on March 12, 2000 at the Australian Grand Prix in Melbourne . Ralf Schumacher finished third in this race - it was the best F1 entry for an engine manufacturer in over 30 years.

The engines were given detailed names internally: The BMW E41 / 4 with the number R39-9, for example, had nine revisions, with R standing for racing specification. In his last phase, which is the end of season 2000 was used, the BMW about 810 hp (596 kW) made E41 / 4 at 17,500 min ^-1 . In qualifying , the engine reached a maximum speed of 17,800 min ^-1 . In the 2001 Formula 1 season , the engine was replaced by the BMW P80.

Data

designation	Displacement	Bore × stroke	Valves / cyl.	Cylinder spacing	Power at 1 / min	Max. Torque	year
E41 / 4 R39-9	3.0 liters (2998 cm 3 )	94.0 mm x 42.3 mm	40	107 mm	596 kW (810 hp) at 17,500	350 Nm	2000

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  BMW E41 / 4 R39-9, detail

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  Williams FW22 at the GP in Canada

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  Williams FW22

Individual evidence

1. ↑ ^{a b c} F1Technical - website: BMW WilliamsF1 FW22. From: f1technical.net , accessed June 7, 2019 .