BMW S65
BMW S65 engine | |
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Overview | |
Manufacturer | BMW |
Production | 2007–2013 |
Layout | |
Configuration | DOHC 90° V8 |
Chronology | |
Predecessor | BMW S54 |
Successor | BMW S55 |
The BMW S65 is a naturally aspirated V8 petrol engine which replaced the S54 straight-six engine and was produced from 2007–2013. There is no direct replacement for the S65, since the next generation of M3 is powered by the BMW S55 turbocharged straight-six engine.
Derived from the S85 V10 engine first used in the E60 M5, the S65 shares the same basic architecture and aluminium construction. Unlike most other BMW M engines (which use the "S" model code), the S65 is not related to a regular production ("M" or "N") BMW engine.[1]
The S65 was introduced in the E92 M3 and was chosen as International Engine of the Year for the 3.0 to 4.0 L category in 2008, 2009, 2010, 2011 and 2012.[2]
Design
The S65 shares the same 92 mm (3.6 in) bore and 75.2 mm (3.0 in) stroke cylinder dimensions with the S85 V10. Other common features include individual throttle bodies,[3] ionic current knock sensing,[4] variable valve timing ("double-VANOS") and the 12.0:1 compression ratio.[5] The length of the S65 is 734 mm (28.9 in). The redline is 8400 rpm.
To reduce weight, a wet-sump lubrication system with two electrically operated scavenging pumps and a main oil pump replaces the three-pump wet-sump system used on the V10.[6][7][8]
The alternator disconnects from the engine during acceleration to maximise power, only charging the battery during braking and decelerating whenever possible, in a system BMW calls Brake Energy Regeneration.[6]
The engine control unit (ECU/DME) is a Siemens MSS60,[9][10] which is based on the Siemens MSS65 ECU used in the S85 engine[11] and is capable of more than 200 million calculations per second.
The S65 weighs 202 kg (445 lb), which is 15 kg (33 lb) less than its S54 straight-6 engine predecessor.[12]
The firing order for the S65 engine is 1-5-4-8-7-2-6-3, which is different from the typical BMW V8 firing order of 1-5-4-8-6-3-7-2.[13]
Models
Engine | Displacement | Power | Torque | Year |
---|---|---|---|---|
S65B40 | 3,998 cc (244 cu in) | 309 kW (414 hp) @ 8300 rpm | 400 N⋅m (300 lb⋅ft) @ 3900 rpm | 2007 |
S65B44 | 4,361 cc (266 cu in) | 331 kW (444 hp) @ 8300 rpm | 440 N⋅m (320 lb⋅ft) @ 3750 rpm | 2010 |
S65B40
The S65B40 has a bore of 92 mm (3.6 in) and a stroke of 75.2 mm (3.0 in).
Applications:
- 2008-2013 BMW M3 E90/92/93 sedan/coupe/convertible
- 2009-2014 Wiesmann MF4-S GT/Roadster
S65B44
The S65B44 is an enlarged version of the S65, due to a larger stroke of 82 mm (3.2 in).[14] It also uses a lightweight titanium exhaust.[15]
Applications:
- 2010-2011 E92 M3 GTS coupe[16]
- 2011-2012 E90 M3 CRT sedan[17][18]
P65B44
The P65 engine is used for motor racing.
Applications:
- 2008 BMW M3 ALMS[19]
- 2009 BMW M3 GTR racing car[20]
- 2010-2015 BMW Z4 GT3 racing car
- 2013-2016 BMW Z4 GTE racing car
See also
References
- ↑ "2006 BMW M5 - First Drive Review". www.caranddriver. Retrieved 23 February 2012.
- ↑ "Archive". www.ukimediaevents.com. Retrieved 18 August 2017.
- ↑ The New BMW M3. BMW Media Information. April 2007. Retrieved 18 August 2017.
- ↑ "2010 BMW M3 GTS". www.supercars.net. Retrieved 18 August 2017.
- ↑ "Engine specifications for motorsport engines". www.bmwheaven.com. Retrieved 17 August 2017.
- 1 2 "Bmw M3 V8". www.kenrockwell.com. Archived from the original on 6 May 2007. Retrieved 2007-04-29.
- ↑ "S65 oil pressure values". www.m3post.com. Retrieved 18 August 2017.
- ↑ "BMW S85 V10 and S65 V8 Engines". www.unixnerd.demon.co.uk. Retrieved 18 August 2017.
- ↑ "3' E92 M3 Basic control unit DME / MSS60". www.realoem.com. Retrieved 18 August 2017.
- ↑ "BMW S65 engine". www.australiancar.reviews. Retrieved 18 August 2017.
- ↑ Aftersales Training - Product Information. E92 M3 Complete vehicle (PDF). BMW Service. July 2007. Retrieved 18 August 2017.
- ↑ "The new BMW M3" (PDF). BMW USA. 2007-04-01. Retrieved 2007-04-29.
- ↑ "Aftersales Training - Product Information. E92 M3 Complete vehicle" (pdf). www.bimmerfest.com. Retrieved 22 February 2018.
- ↑ "FAQ E90 + E92 + E93 M3". www.bmwmregistry.com. Retrieved 15 August 2017.
- ↑ "2010 BMW M3 GTS, an AW Flash Drive". www.autoweek.com. Retrieved 15 August 2017.
- ↑ "New BMW M3 GTS with a larger 4.4L V8". www.paultan.org. Retrieved 18 June 2011.
- ↑ "2012 BMW M3 CRT". www.topspeed.com. Retrieved 15 August 2017.
- ↑ "2012 BMW M3 CRT Lightweight Sedan". www.caranddriver.com. Retrieved 15 August 2017.
- ↑ "BMW M3 ALMS Racer". www.superstreetonline.com. Retrieved 15 August 2017.
- ↑ "Photos: BMW M3 GTR". www.bmwblog.com. Retrieved 15 August 2017.
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straight-3 turbo |
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straight-4 | <<M43 | N40 / N42 | N45 / N46 | N43 | |||||||||||||||||||||||||||||||||||||
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N20 / N26 | B48>> | ||||||||||||||||||||||||||||||||||||||||
straight-6 | M54 / M56 | N52 | N53 | ||||||||||||||||||||||||||||||||||||||
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straight-6 turbo |
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S55>> | |||||||||||||||||||||||||||||||||||||||||
V8 | M62 | N62 | |||||||||||||||||||||||||||||||||||||||
S62 | S65 | ||||||||||||||||||||||||||||||||||||||||
V8 turbo | N63>> | ||||||||||||||||||||||||||||||||||||||||
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V10 | S85 | ||||||||||||||||||||||||||||||||||||||||
V12 | <<M73 | N73 | |||||||||||||||||||||||||||||||||||||||
V12 turbo | N74>> |