BMW N73

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N73B60 variant with hydrogen drive, exhibited at the Mondial de l'Automobile 2006

N73B60 variant with hydrogen drive, exhibited at the Mondial de l'Automobile 2006
N73
Production period: 2003-2016
Manufacturer: BMW.svg BMW
Working principle: Otto
Motor design: V engine
Valve control: BMW " Valvetronic "
Displacement: 6.0 or 6.75 l cm 3
Mixture preparation: Direct injection
Engine charging: no
Power: 327 (445 PS) or 338 (460 PS) kW
Max. Torque: 600 or 720 Nm
Previous model: BMW M73
Successor: BMW N74

The N73 is a 12-cylinder - V-engine of the automobile manufacturer BMW with a cylinder bank angle of 60 °. The N73 has direct injection , four-valve technology and the fully variable valve control that BMW calls " Valvetronic ". This reduces the engine's fuel consumption by up to 10% (BMW information).

The crankcase is composed as its predecessor from an aluminum - silicon alloy ( "Alusil"), the crankshaft with counterweights 12 forged steel. Cast aluminum was used for the cylinder heads.

The B60 variant runs with two MED 9.2.1 engine control units.

Data

engine Displacement Bore × stroke Weight compression Power at 1 / min Torque at 1 / min construction time
N73B60 6.0 l (5972 cm³) 89.0 mm × 80.0 mm 280 kg 11.3: 1 327 kW (445 hp) at 6000 600 Nm at 3950 2003-2008
N73B68 6.75 l (6749 cm³) 92.0 mm × 84.6 mm - 11.0: 1 338 kW (460 hp) at 5350 720 Nm at 3500 since 2003

use

N73B60

N73B68

N73B68 in the Rolls-Royce Phantom
Timeline of BMW gasoline engines for passenger cars since 1961
Number of cylinders Conception 1960s 1970s 1980s 1990s 2000s 2010s
0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
3 1.5 l B38
4th (1.5–2.0 l) M10
M40
M42
M43
M44
N40
N42
N45
N46
N43
N13
N20
B48
High performance motor S14
6th Small six-cylinder (2.0-3.0 l) M20
M50
M52
M54
Large six-cylinder (2.5-3.5 l) M30
N52
N53
N54
N55
B58
High performance motor M88
S38
S50
S52
S54
S55
8th 3.0-4.4 l M60
M62
N62
N63
High performance motor S62
S63
S65
10 High performance motor S85
12 5.0-6.6 l M70
M73
N73
N74
High performance motor S70
Number of cylinders Conception 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
1960s 1970s 1980s 1990s 2000s 2010s

Web links

Commons : BMW N73  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ Engine workbook N73B60