The BMW S65 is a naturally aspirated V8 petrol engine which was produced from 2007 to 2013. Its main use was in the BMW M3 (where it replaced the BMW S54 straight-six engine). There is no direct replacement for the S65, since the following generation of M3 switched to a turbocharged straight-six engine (the BMW S55 ).
13-670: Derived from the BMW S85 V10 engine (as used in the E60 M5 ), the S65 shares the same basic architecture and aluminium construction. Unlike most other BMW M engines, the S65 and S85 are not related to a regular production BMW engine. The S65 won the International Engine of the Year award for the 3.0 to 4.0 L category in 2008, 2009, 2010, 2011 and 2012. The S65 shares the same cylinder dimensions with
26-1190: A panel of automobile journalists from around the world. It is organised by UKi Media & Events' Automotive Magazines. The competition was started in 1999. The last competition was held in 2019. The 2020 competition was initially delayed due to COVID-19 and was never scheduled. The award is determined by the panellists using "subjective driving impressions and technical knowledge, and took into account characteristics such as fuel economy, noise, smoothness, performance and driveability". (Jaguar I-Pace) (Ferrari 488 GTB, 488 Spider, 488 Pista) (Ford Fiesta, Focus, C-Max, Grand C-Max, Mondeo, EcoSport) (Audi TT, TT S, S1, S3, A3, A4, A5, A6, Q2, Q3, Q5; SEAT León Cupra, Alhambra, Ateca, Cupra Ateca; Škoda Superb, Kodiaq; Volkswagen Golf GTi, Polo GTi, T-Roc, Atlas, Passat, Arteon, CC, Beetle, Tiguan, Sharan) (Porsche 718 Boxster S, 718 Cayman S) (Jaguar I-Pace) (Mercedes-AMG GT, GT S, GT C, GT R, S, C, E, G, GLC, Maybach S, Aston Martin Vantage, DB11) (Ferrari Portofino, GTC4 Lusso T) (Ferrari 488 GTB, 488 Spider, 488 Pista) (Jaguar I-Pace) (BMW i8) Number of times
39-435: Is 373 kW (507 PS; 500 hp) at 7,750 rpm and peak torque is 520 N⋅m (384 lb⋅ft) at 6,100 rpm. The redline is 8,250 rpm, and the specific output of 74.6 kW (100.0 bhp) per litre is amongst the highest of naturally aspirated production car engines. Features include: The S85 is lauded for its high-revving nature, capable of reaching redline at 8,250 RPM , a rarity for road-going V10 engines at
52-536: Is an enlarged version of the S65, due to a larger stroke of 82 mm (3.23 in). It also uses a lightweight titanium exhaust. Applications: The P65 engine is used for motor racing. Applications: BMW S85 The BMW S85B50 is a naturally aspirated V10 petrol engine which replaced the BMW S62 V8 engine in the M5 model and was produced from 2005–2010. It was both BMW's first and only production V10 engine, and
65-549: Is based on the Siemens MSS65 ECU used in the S85 engine The S65 weighs 202 kg (445 lb), which is 15 kg (33 lb) less than its S54 straight-6 engine predecessor. 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. The S65B40 has a bore of 92 mm (3.6 in) and a stroke of 75.2 mm (3.0 in). Applications: The S65B44
78-820: The BMW's engine codes . The "60s" were used for V8 engines and the "70s" were used for V12 engines, therefore the V10 was allocated in the "80s" (despite having fewer cylinders than the V12 engines in the "70s".) The engine code for the related BMW S65 V8 engine reflects its link to the S85. The S65 code was selected to signify that the V8 is largely derived from the S85 minus two cylinders, and not related to BMW's other V8s. The S85 has dual overhead camshafts with four valves per cylinder and double-VANOS (variable valve timing). The engine block and cylinder head are constructed from aluminum alloy. Peak power
91-452: The International Engine of the Year : The S85 V10 engine remains a revered engine in BMW’s history, praised for its incredible power delivery, high-revving characteristics, and direct links to BMW’s Formula 1 technology. However, due to its reliability issues and expensive maintenance, the engine has a mixed reputation among owners and enthusiasts. Despite this, the S85 is often considered one of
104-464: The S85 V10, with a 92 mm (3.6 in) bore and a 75.2 mm (3.0 in) stroke. Other common features include individual throttle bodies , ionic current knock sensing , double-VANOS (variable valve timing) and the 12.0:1 compression ratio . The redline is 8,400 rpm. To reduce weight, a wet-sump lubrication system with two electrically operated scavenging pumps and a main oil pump replaces
117-406: The S85 notably suffers from significant reliability issues. Maintaining the S85 V10 requires due diligence from the owner. To ensure longevity, regular oil changes, close monitoring of VANOS function, and early replacement of rod bearings and throttle actuators are critical and warrants S85 owners to follow a proactive and a meticulous maintenance schedule. The S85 has won the following awards at
130-455: The first petrol V10 engine to be available in a production sedan (saloon). Introduced in the E60 M5 , the S85 was inspired by BMW's previous Formula One involvement. Unlike most other BMW M engines, the S85 is not related to a regular production BMW engine. The BMW S65 V8 engine (used in the E92 M3 ) is based on the S85. As the S85 was BMW's first V10 engine, it was given a new series in
143-539: The greatest engines ever built by BMW. With the end of its production in 2010, BMW transitioned away from naturally aspirated engines in favour of turbocharged power-plants, marking the end of an era for BMW’s high-revving, naturally aspirated performance engines. International Engine of the Year The International Engine of the Year was an annual competition for automotive industry internal combustion engines and electric motors , judged by
SECTION 10
#1732851128828156-421: The three-pump wet-sump system used on the S85. The dry weight of the S65 is 202 kg (445 lb). The alternator reduces or stops charging (depending on battery charge level) during acceleration to maximise power, only fully charging the battery during braking and decelerating whenever possible, in a system BMW calls Brake Energy Regeneration. The engine control unit (ECU/DME) is a Siemens MSS60, which
169-459: The time of its release. Its performance figures were notable for its era, producing 100 hp per liter , one of the highest outputs for naturally aspirated engines at the time. The engine allowed the BMW M5 and M6 to accelerate from 0 to 100 km/h (62 mph) in around 4.5 seconds . Additionally, it featured a 7000-RPM launch control function for optimised acceleration. Despite its engineering pedigree,
#827172