BMW N63 explained

BMW N63 engine
Production:2008–present
Configuration:90° V8
Block:Aluminium
Head:Aluminium
Valvetrain:DOHC w/ VVT
Displacement:3982cc
4395cc
Bore:89mm
Stroke:80mm
88.3mm
Turbocharger:Twin-turbo
Fueltype:Petrol
Predecessor:BMW N62

The BMW N63 is a twin-turbocharged petrol V8 engine which has been in production from 2008 to present. The N63 is the world's first production car engine to use a "hot-vee" layout, with the turbochargers located inside the "V" of the engine. It is also BMW's first turbocharged petrol V8 engine. The engine has been widely noted for its mechanical issues, undergoing several recalls.[1] [2] [3] [4] [5] [6]

The N63 replaced the BMW N62 (a naturally aspirated V8 engine) and was first used in the 2008 X6 xDrive50i.[7]

The S63 engine is the BMW M high-performance version of the N63.

Alpina versions of the N63 are used in various F01 7 Series, F10 5 Series, G11 7 Series, G15 8 Series and G30 5 Series models.

Design

The airflow path through the engine uses a "hot-vee" layout, where the exhaust manifolds and turbochargers are located between the cylinder banks (on the "inside" of the V8) and the intake manifolds are located on the outside of the engine.[8] This is opposite to the traditional layout for a V8, where the intake is inside the "V" and the exhaust manifold is on the outside. The hot-vee layout reduces the width of the engine and decreases the exhaust runner length from the exhaust valves to the turbochargers. The engine uses air-to-water intercoolers, therefore improving throttle response.[7] [9]

Similar to the N54B30, the initial N63 (including the S63) did not use Valvetronic (variable valve lift) because its benefit of reducing of intake vacuum is not as important in turbocharged engines.[10] Due to the presence of turbocharging, the N63 does not use a variable-length intake manifold.

The N63 is BMW's first V8 engine to use direct injection.

The N63/S63 uses a bore of 892NaN2 and a stroke of 88.32NaN2 [except for the Chinese market {{convert|89|mm|in|2|abbr=on}} and a [[Stroke (engine)|stroke]] of 802NaN2].

2012 technical update

In 2012, a "Technical Update" was applied to the N63, resulting in the N63TU variants (also known as N63B44O1). The main upgrade was the addition of Valvetronic.[11] [12] Other changes include revised turbochargers, removal of the blowoff valve, lighter pistons, forged connecting rods and crankshaft, addition of a valve cover labyrinth oil catch/return system, new valve stem seals, revised fuel system and addition of a second coolant pump.[10]

2016 technical update

A second Technical Update occurred in 2016, resulting in the N63TU2 variants (also known as N63B44O2). The major changes are the use of twin-scroll turbochargers, a wider powerband and the oil/coolant heat exchanger being moved to within the "V" of the engine.[13]

2018 technical update

A third Technical Update was introduced in 2018. Two variants are offered: N63B44M3[14] and N63B44T3.[15] N63B44M3 features improved thermal shielding for the crankcase and the cylinder head, and a new ignition system. The N63B44T3 gains higher pressure (5000psi) injectors, larger twin-scroll turbochargers, a redesigned intake manifold, and an upstream cooling radiator.

Models

Engine Displacement Power Torque Years
N63B40A 3,982 cc 3000NaN0
at 5,500 rpm 		6000NaN0
at 1,750-4,500 rpm 		2012–2015
3310NaN0
at 5,500 rpm 		6500NaN0
at 1,750-4,500 rpm
N63B44O0 4,395 cc 3000NaN0
at 5,500-6,400 rpm 		6000NaN0
at 1,750-4,500 rpm 		2008–2013
N63B44O1 3310NaN0
at 5,500-6,000 rpm 		6500NaN0
at 2,000-4,500 rpm 		2013–2016
N63B44O2 6500NaN0
at 1,800-4,500 rpm 		2016–2020
N63B44M3 3400NaN0
at 5,250-6,000 rpm 		6500NaN0
at 1,500-4,750 rpm 		2018–present
N63B44T3 3900NaN0
at 5,500-6,000 rpm 		7500NaN0
at 1,800-4,600 rpm
S63B44O0 4080NaN0
at 6,000 rpm 		6800NaN0
at 1,500-5,650 rpm 		2010–2013
S63B44T04120NaN0
at 6,000-7,000 rpm 		6800NaN0
at 1,500-5,750 rpm 		2011–2018
S63B44T24230NaN0
at 6,000-6,500 rpm 		7500NaN0
at 2,200-5,000 rpm 		2015–2018
S63B44T44410NaN0
at 5,600-6,700 rpm 		7500NaN0
at 1,800-5,600 rpm 		2018–present
4600NaN0
at 5,600-6,700 rpm 		7500NaN0
at 1,800-5,800 rpm 		2019–present[16]

N63B40A

This smaller variant was sold in the Chinese market. Due to a shorter stroke length of 802NaN2, the capacity is reduced to 39821NaN1.[17]

Applications:

N63B44O0

The initial version of the N63 produces 3000NaN0 and 6000NaN0.

Applications:

N63B44O1 (N63TU)

The first technical update resulted in an increase of 310NaN0 and 500NaN0.

Applications:

N63B44O2 (N63TU2)

The second technical update resulted in peak torque being produced over a 200 rpm wider band.

Applications:

N63B44M3 (N63TU3)

Applications:

N63B44T3 (N63TU3)

Applications:

–

S63

BMW S63 engine
Production:2009-present
Configuration:90° V8
Valvetrain:DOHC w/ VVT
Displacement:4395cc
Bore:89mm
Stroke:88.3mm
Turbocharger:Twin-turbo
Fueltype:Petrol
Predecessor:BMW S65
Successor:BMW S68

The S63 is the BMW M version of the N63, which debuted in the BMW X6 M and was used in the BMW M5 models from 2011 to 2023. The S63 uses two twin-scroll turbochargers plus a pulse tuned, cross-engine exhaust manifold[8] to keep constant exhaust pulses flowing to the turbos at every 180 degree rotation.

S63B44O0

Applications:

S63B44T1

A technical update to the S63, known as the S63B44T1, debuted on the F10 M5 sedan. This version uses Valvetronic,[22] a 10:1 compression ratio (compared with 9.3:1 for the non-TU version) and 1.5 bar of boost (compared with 1.3).[23] It is the first BMW M engine to use Valvetronic. The rev limit was increased from 6800 rpm to 7200 rpm.[24]

Applications:

S63B44T2

The S63B44T2 debuted on the 2015 X5 M and X6 M models.[25]

Applications:

S63B44T4

The S63B44T4 debuted on the 2018 M5.[26]

Applications:

P63

BMW P63 engine
Production:2018-present
Configuration:90° V8
Valvetrain:DOHC w/ VVT
Displacement:3982cc
Bore:89mm
Stroke:80mm
Turbocharger:Twin-turbo
Fueltype:Petrol
Predecessor:None

The P63 is the BMW Motorsport version of the N63, which debuted in the BMW M8 GTE.

Alpina

Alpina uses a variant of the N63 engine, which was hand-assembled at the Alpina plant in Buchloe before being transported to the BMW production line.[27]

For the 2013 model year, the Alpina engine received Valvetronic like all other N63 engines.[28]

EnginePower TorqueCompression ratio Years
M13730NaN0
at 5,500 rpm 		7000NaN0
at 3,000-4,750 rpm 		9.2:1 2009–2012
M1/13970NaN0
at 5,200-6,250 rpm 		7300NaN0
at 2,800-5,000 rpm 		2012–2014
M2, M2/110.0:1 2012–2015
M2/24410NaN0
at 6,000 rpm 		8000NaN0
at 3,500-4,500 rpm 		2015-
M5[29]
(N63M30) 		4470NaN0
at 5,750-6,250 rpm 		8000NaN0
at 3,000-5,000 rpm		2016-
M5/1
(N63B44T3 type)[30] 		4560NaN0
at 5,500-6,500 rpm		8000NaN0
at 2,000-5,000 rpm		10.5:12020-

M1

Applications:

M1/1

Applications:

M1/2

Applications:

M2, M2/1

Applications:

M2/2

Applications:

M5

The Alpina engine code is N63M30A.

Applications:

An evolution of this engine, with better power delivery, is of the N63B44T3 type.

Applications:

North American recall

In December 2014, BMW North America released a voluntary recall ("Customer Care Package") relating to issues with timing chain stretch, fuel injectors, mass air flow sensors, crankcase vent lines, battery, engine vacuum pump, low pressure fuel sensor and revising the oil service interval.[39]

In 2019 NHTSA addressed the multitude of issues with BMW N63 engines, various class action lawsuits in tow, and never officially declared a mass recall in regard to valve seal issues inherent in the N63 line.[40]

See also

Notes and References

  1. Web site: Nica . Gabriel . 2015-06-11 . Here's Why BMW's N63 4.4-liter V8 Engines Fail . 2023-09-21 . autoevolution . en.
  2. Web site: Nica . Gabriel . 2014-10-28 . BMW 4.4-liter N63 Engine Experiencing Frequent Reliability Problems . 2023-09-21 . autoevolution . en.
  3. Web site: 2019-10-03 . BMW N63 Engine Problems - Causes and Solutions . 2023-09-21 . bmwtuning.co . en-US.
  4. Web site: 2022-05-30 . BMW N63 Engine Overview – Is It Worth It In 2022? . 2023-09-21 . Bimmers.com . en-US.
  5. Web site: Weyer . Michael . 2022-01-29 . 5 V8 Engines We Trust (5 We Want Nothing To Do With) . 2023-09-21 . HotCars . en.
  6. Web site: Bagnall . Jason . 2020-05-25 . Here Are The Worst New Vehicles You Can Buy With A V8 Engine . 2023-09-21 . HotCars . en.
  7. Web site: BMW X6 Full Details, Specifications and Photos . 2008-07-04 . 2008-08-29 . https://web.archive.org/web/20080829224005/http://paultan.org/archives/2007/12/16/bmw-x6-full-details-specifications-and-photos/ . live .
  8. Web site: BimmerBoost - BMW twin turbo V8 analysis - Power potential, tuning, performance, and architecture of the N63 and S63 motors . 2021-10-06 . 2021-01-09 . https://web.archive.org/web/20210109225513/https://www.bimmerboost.com/content.php?1157-BMW-twin-turbo-V8-analysis-Power-potential-tuning-performance-and-architecture-of-the-N63-and-S63-motors . live .
  9. Web site: Interview: BMW M Head of Engine Development Details F10 M5 S63Tu Engine. www.m5post.com. 19 July 2017. 12 June 2018. https://web.archive.org/web/20180612141305/http://f10.m5post.com/forums/showthread.php?t=588858. live.
  10. Web site: BMW N63 Turbocharged V8 Engines. www.unixnerd.demon.co.uk. 8 July 2017. 29 May 2017. https://web.archive.org/web/20170529222928/http://www.unixnerd.demon.co.uk/n63.html.
  11. Web site: BMW TwinPower Turbo and Valvetronic. www.bmwblog.com. 15 June 2012. 8 July 2017.
  12. Web site: BMW updates all N63 V8 Turbo cars to the 445 horsepower N63TU motor for 2013. www.bimmerboost.com. 8 July 2017. 3 September 2018. https://web.archive.org/web/20180903114843/https://www.bimmerboost.com/content.php?2654-BMW-updates-all-N63-V8-Turbo-cars-to-the-445-horsepower-N63TU-motor-for-2013-except-the-2013-X5-50i-and-X6-50i. live.
  13. Web site: N63TU2 Engine Technical Training. BMW Service. 10 July 2017. 3 August 2017. https://web.archive.org/web/20170803005943/https://www.bimmerfest.com/forums/attachment.php?attachmentid=539778&d=1448402724. live.
  14. Web site: The all-new BMW X5. BMW Group. 6 June 2018. 12 June 2018. https://web.archive.org/web/20180612142602/https://www.press.bmwgroup.com/global/article/detail/T0281455EN/the-all-new-bmw-x5:-the-prestige-sav-with-the-most-innovative-technologies. live.
  15. Web site: The all-new BMW 8 Series Coupe.. www.press.bmwgroup.com. en. 2018-06-15. 2018-06-15. https://web.archive.org/web/20180615214608/https://www.press.bmwgroup.com/global/article/detail/T0281744EN/the-all-new-bmw-8-series-coupe. live.
  16. Web site: Horsepower and Torque curve for 2020 BMW X6 M Competition (Aut. 8) offered since April 2020 for Europe.
  17. Web site: 2014 650i technical data. www.bmw.com.cn. 8 July 2017. zh. 1 July 2017. https://web.archive.org/web/20170701133907/http://www.bmw.com.cn/zh/all-models/6-series/coupe/2014/technical-data.html#tab-2. live.
  18. Web site: New BMW 7-Series (F01) Specifications and Photos . 2008-07-08 . 2012-07-17 . https://web.archive.org/web/20120717103130/http://paultan.org/2008/07/05/new-bmw-7-series-f01-specifications-and-photos/ . live .
  19. Web site: 2022 Range Rover Lands with BMW V8 and Noise-Cancelling Headrests, PHEV and EV Coming 2023. 26 October 2021.
  20. Web site: The 2022 Range Rover Has New Looks and a BMW V-8. 26 October 2021.
  21. Web site: Car and Driver - BMW M5 powered Wiesmann GT MF5 on road and track. www.youtube.com. 13 September 2012 . 13 July 2017. 3 June 2017. https://web.archive.org/web/20170603204002/https://www.youtube.com/watch?v=3dA3NgH2_ss. live.
  22. Web site: FAQ F10 M5. www.bmwmregistry.com. 13 July 2017. 4 August 2017. https://web.archive.org/web/20170804220708/http://www.bmwmregistry.com/model_faq.php?id=54. live.
  23. Web site: New BMW M5 S63Tu Engine Improves Upon X5/X6M's S63 - All Details . 2021-10-06 . 2020-11-12 . https://web.archive.org/web/20201112021332/https://f10.m5post.com/forums/showthread.php?t=548345 . live .
  24. Web site: BMW S63 V8 Turbocharged M-Tech Engines. www.unixnerd.demon.co.uk. 19 July 2017. 28 January 2017. https://web.archive.org/web/20170128155739/http://www.unixnerd.demon.co.uk/s63.html. live.
  25. Web site: BMW X5 M price, photos and specs. www.caranddriver.com. 13 July 2017. 18 July 2017. https://web.archive.org/web/20170718103943/http://www.caranddriver.com/bmw/x5-m. live.
  26. Web site: New BMW M5 revealed. www.carmagazine.co.uk. 24 September 2017. 23 September 2017. https://web.archive.org/web/20170923154742/http://www.carmagazine.co.uk/car-news/motor-shows-events/frankfurt/2017/new-2018-bmw-m5-revealed-in-pictures-and-video/. live.
  27. Web site: 2011 BMW 750Li Alpina B7 First Drive. www.edmunds.com. dead. https://web.archive.org/web/20150210231938/http://www.edmunds.com/bmw/alpina-b7/2011/road-test1.html. 10 February 2015.
  28. Web site: Preview: 2013 Alpina B7 offers outrageous performance | Driving | National Post . 2012-10-07 . dead . https://archive.today/20130129123309/http://life.nationalpost.com/2012/08/23/preview-2013-alpina-b7-outperforms-m/ . 2013-01-29 .
  29. Web site: BMW 7 Series G12: ALPINA Automobiles. www.alpina-automobiles.com. 2020-03-15. 2020-06-17. https://web.archive.org/web/20200617202312/https://www.alpina-automobiles.com/en/product-world/model-history/bmw-7-series/bmw-7-series-g12/. live.
  30. Web site: The new 2020 ALPINA B7 xDrive Sedan - Power, Dynamics and Luxury in a new contemporary Design.. www.press.bmwgroup.com. 2019-02-15. 2019-02-14. https://web.archive.org/web/20190214233440/https://www.press.bmwgroup.com/usa/article/detail/T0291804EN_US/the-new-2020-alpina-b7-xdrive-sedan-power-dynamics-and-luxury-in-a-new-contemporary-design?language=en_US. live.
  31. Web site: Geneva 2009: An M7 by any other name - 2009 BMW Alpina B7 Bi-Turbo. Autoblog.com. Noah Joseph. 2012-06-05. 2012-10-19. https://web.archive.org/web/20121019205615/http://www.autoblog.com/2009/03/04/geneva-2009-an-m7-by-any-other-name-2009-bmw-alpina-b7-bi-tur/. live.
  32. Web site: 2011 BMW Alpina B7 First Drive. https://web.archive.org/web/20150225003939/http://www.motortrend.com/roadtests/sedans/1005_2011_bmw_alpina_b7_drive/viewall.html. dead. 2015-02-25. 2010-05-19. Motor Trend. 2012-06-05.
  33. Web site: Alpina B5 Bi-Turbo et B6 Bi-Turbo Edition 50 : 100 unités, 600 chevaux. Burgan. Richard. 27 March 2015. fr. 29 June 2015. 4 March 2016. https://web.archive.org/web/20160304030256/http://www.turbo.fr/actualite-automobile/760731-alpina-b5-bi-turbo-b6-bi-turbo-edition-50-100-unites-600-chevaux/. live.
  34. Web site: 2015 BMW Alpina B6 xDrive Gran Coupe - First Drive Review. Quiroga. Tony. May 2014. Car & Driver. 29 June 2015. 6 August 2015. https://web.archive.org/web/20150806123856/http://www.caranddriver.com/reviews/2015-bmw-alpina-b6-xdrive-gran-coupe-first-drive-review. live.
  35. 7 July 2014. To The Max. Autoweek. 64. 14. 22–23. Vaughn. Mark.
  36. Web site: Celebrate Alpina's 50th at 204 mph. Ramey. Jay. 6 April 2015. Autoweek. 29 June 2015. 4 July 2015. https://web.archive.org/web/20150704100646/http://autoweek.com/article/car-news/alpina-celebrates-50-years-204-mph-sedan-wagon-and-coupe-trio. live.
  37. Web site: Road Vehicle Descriptor (RVD1). rvcs-prodweb.dot.gov.au. 2016-11-24. 2016-11-25. https://web.archive.org/web/20161125045210/http://rvcs-prodweb.dot.gov.au/perl/48241_1197276_RVD_04Nov2016143019.cmd. live.
  38. Web site: Road Vehicle Descriptor (RVD1). rvcs-prodweb.dot.gov.au. 2018-06-08. 2018-06-12. https://web.archive.org/web/20180612142417/http://rvcs-prodweb.dot.gov.au/perl/49297_1253524_RVD_05Feb2018143018.cmd. live.
  39. Web site: BMW offers Customer Care Package for N63 engines. www.bmwblog.com. https://archive.today/20150106202525/http://www.bmwblog.com/2015/01/06/bmw-offers-customer-care-package-n63-engines/. 6 January 2015.
  40. Web site: July 31, 2019 . N63 CLASS ACTION SETTLEMENT FOR OIL CONSUMPTION AND BATTERY DRAIN . NHTSA.

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