BMW N54

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BMW N54B30

BMW N54B30
N54
Production period: since 2006
Manufacturer: BMW.svg BMW
Working principle: Otto
Motor design: R6
Drilling: 84 mm
Hub: 89.6 mm
Displacement: 2979 cm 3
Mixture preparation: Direct injection
Engine charging: Exhaust gas turbocharger
Power: 225-294 kW
Torque: 400-540 Nm
Previous model: ?
Successor: BMW N55

The N54 is a turbocharged six-cylinder petrol engine from BMW that has been in production since 2006. The in- line engine with bi-turbo was introduced in autumn 2006 as a high-performance variant for the BMW 3 Series , especially for the BMW 3 Series Coupé . Shortly thereafter, it was used in other BMW models. It is the first turbocharged petrol engine from BMW since the 745i in 1980. From 2007 to 2012, the engine won the International Engine of the Year Award six times in a row .

BMW specifies the output of the N54B30 as 225 kW (306 hp), while the 7 Series BMW ( BMW F01 ), which appeared in 2008, has increased the output to 240 kW. The engine uses two small turbochargers to keep the turbo lag as small as possible. For this reason, the boost pressure is just 0.4  bar with the aim of giving the driver the feeling of driving a car with a naturally aspirated engine . The engine made its debut at the Geneva Motor Show . Like the BMW N53 , it does not use the Valvetronic valve control of the BMW N52 . The engine has direct fuel injection and fully variable valve timing ( VANOS ).

Although the dimensions of bore and stroke are identical to the older BMW M54B30 , and the engine block like this one is made of aluminum, most of the design features are more similar to the N52, such as the open deck and bedplate construction. At 187 kg, the N54B30 is around 25 kg heavier than the N52B30. This also explains the displacement of 2979 cm³, which is identical to the M54B30, instead of 2996 cm³ of the N52B30. The performance of the N54B30 is similar to that of the N62B40 , which is a V8 and 70 kg heavier. The N54 is superior to the V8 in terms of torque in the low engine speed range. For this reason it was decided to produce a bi-turbo in-line six-cylinder instead of a heavier V8 engine. The decisive factor for this was the use in the 3 Series BMW; here the 335i achieves an approximately 50:50 weight distribution. The crankshaft is forged.

Data

Engine type Displacement Bore × stroke compression Power at 1 / min Torque at 1 / min Maximum speed Introductory year
N54B30 3.0 L (2979 cm³) 84 mm × 89.6 mm 10.2: 1 225 kW (306 hp) at 5800 400 Nm at 1300-5000 7000 min -1 2006
240 kW (326 hp) at 5800 450 Nm at 1500-4500 2008
250 kW (340 hp) at 5900 450 Nm at 1500–4500
(500 Nm with overboost )		 2010
265 kW (360 hp) at 5500 500 Nm at 3800 2007
294 kW (400 hp) at 6000 540 Nm at 4500 2010

use

N54B30

  • 225 kW (306 hp)
    • since 2006 in the E90 / E91 as 335i sedan / station wagon
    • since 2006 in the E92 as a 335i Coupé
    • since 2007 in the E93 as a 335i convertible
    • since 2008 in the E60 / E61 as a 535i sedan / station wagon (only in the USA)
    • since 2008 in the E82 / E88 as a 135i Coupé / Cabrio
    • since 2008 in the E71 as X6 xDrive35i
    • since 2009 in the E89 as Z4 sDrive35i
  • 240 kW (326 hp)
    • 2008 to 2012 in the F01 as 740i
    • 2009 to 03/2010 in the E71 as X6 xDrive35i with BMW Performance Power Kit
    • since 2009 in the E82 / E88 as a 135i Coupé / Cabrio with BMW Performance Power Kit
  • 250 kW (340 hp)
    • since 2010 in the E89 as Z4 sDrive35is
    • since 2011 in the E82 as 1 Series M Coupé
  • 265 kW (360 hp)
    • since 2006 in the Alpina B3 BiTurbo (with modified high-strength Mahle pistons)
  • 294 kW (400 hp)

Web link

Individual evidence

  1. ↑ a b c d e f g h BMWBLOG from February 6, 2017, report on N54 (English), accessed on November 13, 2018.
  2. ↑ a b c autobild.de, driving report of the 3 Series Coupé 335i from July 14, 2006, Turbolente Zeiten , accessed on November 13, 2018.
  3. ↑ bimmertoday.de of June 13, 2012, Engine of the Year Awards 2012 , accessed on November 13, 2018.
  4. ↑ auto-motor-und-sport.de of November 2, 2006, test of the BMW 335i on the Nordschleife , section The 335i exerts exemplary restraint when it comes to consumption , accessed on November 13, 2018.
  5. ↑ The N55 at AustralianCar.Reviews, accessed November 14, 2018 .
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