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.
26-603: The N63 replaced the BMW N62 (a naturally aspirated V8 engine) and was first used in the 2008 X6 xDrive50i. 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. The airflow path through the engine uses a "hot-vee" layout, where the exhaust manifolds and turbochargers are located between
52-563: A stroke of 88.3 mm (3.48 in) [except for the Chinese market 89 mm (3.50 in) and a stroke of 80 mm (3.15 in)]. 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. Other changes include revised turbochargers, removal of the blowoff valve , lighter pistons, forged connecting rods and crankshaft, addition of
78-480: A valve cover labyrinth oil catch/return system, new valve stem seals, revised fuel system and addition of a second coolant pump. 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. A third Technical Update
104-555: A 200 rpm wider band. Applications: Applications: Applications: 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 to keep constant exhaust pulses flowing to the turbos at every 180 degree rotation. Applications: Applications: A technical update to
130-712: A much broader torque curve and more peak HP. Applications: The N62B48 engine used in the E53 X5 4.8is was a 4.8L variant of the N62B44 which shared many components with the N62B44 including the DIVA intake which was replaced when the engine was evolved to the N62TU. The oil pan was modified and deepened to account for the longer stroke crankshaft, this change was applied to all N62's in October 2003. Other changes were made to accommodate
156-459: A shorter stroke length of 80 mm (3.15 in), the capacity is reduced to 3,982 cc (243.0 cu in). Applications: The initial version of the N63 produces 300 kW (402 bhp) and 600 N⋅m (443 lb⋅ft). Applications: The first technical update resulted in an increase of 31 kW (42 bhp) and 50 N⋅m (37 lb⋅ft). Applications: The second technical update resulted in peak torque being produced over
182-429: A stem diameter decreased to 5mm from 6mm. Applications: The N62B36 is a 3,600 cc (219.7 cu in) version. Bore is 84 mm (3.3 in) and stroke is 81.2 mm (3.2 in). It produces 200 kW (270 hp) at 6,200 rpm and 360 N⋅m (270 lb⋅ft) at 4,250 rpm. Applications: The N62B40 is a 4,000 cc (244.1 cu in) version. Bore is 87 mm (3.4 in) and stroke
208-450: Is 6500 rpm. Valvetronic technology allows for variable valve timing, variable lift and variable duration and the N62 adjusts the lift instead of utilizing the throttle body during normal operation. The engine does feature a throttle body but this is only used for emergency applications in the event of Valvetronic failure, for certain cold start conditions and to maintain a set amount of vacuum in
234-403: Is 84.1 mm (3.3 in). It produces 225 kW (302 hp) at 6,300 rpm and 390 N⋅m (290 lb⋅ft) at 3,500 rpm. Applications: The N62B44 is a 4,398 cc (268.4 cu in) version. Bore is 92 mm (3.6 in) and stroke is 82.7 mm (3.3 in). It produces 245 kW (329 hp) at 6,100 rpm and 450 N⋅m (330 lb⋅ft) at 3,600 rpm (except for in
260-501: Is N63M30A. Applications: An evolution of this engine, with better power delivery, is of the N63B44T3 type. Applications: 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. In 2019 NHTSA addressed
286-762: Is a result of a restructure in April 2021, bringing together the BMW M high-performance division with the competitive motorsport division. Key personnel include Franciscus van Meel, CEO of BMW M GmbH, and Andreas Roos, Head of BMW M Motorsport. BMW M Team RLL BMW M Team WRT Ceccato Racing : Century Motorsport : FK Performance Motorsport : Paul Miller Racing ROWE Racing Schubert Motorsport : ST Racing : Team AAI : Team KRC Team Studie : Team RMG : Team WRT : Turner Motorsport : See Deutsche Tourenwagen Masters for BMW's historical involvement in DTM. From 2021 onwards
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#1732783770531312-520: Is the only production engine in the world to feature a continuously variable length intake manifold known as the DIVA intake (not to be confused with the DISA intake as used on many other BMW production engines). The intake length path begins to shorten at 3,500 RPM and is progressively shortened until it reaches its shortest length at the engine's redline. This maximizes torque throughout the RPM range, producing
338-511: 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. 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 89 mm (3.50 in) and
364-749: The 2018 M5. Applications: The P63 is the BMW Motorsport version of the N63, which debuted in the BMW M8 GTE . 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. For the 2013 model year, the Alpina engine received Valvetronic like all other N63 engines. Applications: Applications: Applications: Applications: Applications: The Alpina engine code
390-458: The M62, the N62 has double overhead camshafts (DOHC) with four valves per cylinder , an aluminium engine block and an aluminium cylinder head. The N62 4.4 featured offset fracture-split forged powdered metal connecting rods and it was also the first V8 and only the second BMW engine to feature Valvetronic technology which on the N62 varies the valve lift of the engine from .03mm to 9.85mm. The redline
416-595: The S63, known as the S63B44T1, debuted on the F10 M5 sedan. This version uses Valvetronic , 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). It is the first BMW M engine to use Valvetronic. The rev limit was increased from 6800 rpm to 7200 rpm. Applications: The S63B44T2 debuted on the 2015 X5 M and X6 M models. Applications: The S63B44T4 debuted on
442-507: The X5 model). Applications: The N62B48 has a displacement of 4,799 cc (292.9 cu in), a bore of 93 mm (3.7 in) and a stroke of 88.3 mm (3.5 in). Applications- 261 kW version: Applications- 265 kW version: Applications- 270 kW version: The H1 is a version of the N62B44 made by Alpina . The H1 is based on an N62B44 block with a forged crankshaft from Alpina, high strength Mahle pistons and
468-424: The addition of an ASA centrifugal supercharger . The H1 has a redline of 6,200 rpm. Applications- 368 kW Applications- 390 kW BMW Motorsport BMW M Motorsport (formerly BMW Motorsport ) is the division of BMW responsible for motorsport-related activities, including works-run competition programmes in touring car racing , sports car racing , motorcycle racing . The current organisation
494-525: The cylinder banks (on the "inside" of the V8) and the intake manifolds are located on the outside of the engine. 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. Similar to
520-404: The engine were used in the production N62TU. Other changes include a different exhaust manifold on bank 2, improved catalytic converters, new pre-cat oxygen sensors, new MAF, updated engine management unit, replacement of the DIVA continuously variable length intake manifold to a DISA two-stage manifold, removal of secondary air injection ports, different spark plugs and inlet and exhaust valves with
546-418: The intake during low load conditions such as cruising on the highway or idling. The vacuum pump mounted on the bank 1 cylinder head only supplies the brake booster and certain auxiliaries with vacuum, making the use of the standard TB for manifold vacuum control a requirement for proper functioning of the crankcase ventilation system as well as the fuel evap valve and other emissions related systems. The N62B44
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#1732783770531572-517: The longer stroke crankshaft such as more traditional non-offset connecting rods. The N62B44 was evolved into the N62B48TU beginning in model year 2005. The N62B48 featured several changes over the N62B44, including an increase in the bore size to 93 mm (3.7 in) and stroke to 88.3 mm (3.48 in) which increased the displacement to 4798.52 cc. All changes made for the E53's 4.8L version of
598-458: 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. BMW N62 The BMW N62 is a naturally aspirated V8 petrol engine which was used in BMW cars from 2001 to 2010. It also remained in small-scale production for the Morgan Aero until 2019. The N62 is
624-537: The world's first engine to use a continuously variable-length intake manifold , and BMW's first V8 to feature variable valve lift (called Valvetronic ). Unlike its predecessor and successor, there was no M version of the N62. In the International Engine of the Year awards in 2002, the N62 was awarded "International Engine of the Year", "Best New Engine" and "Above 4-litre" categories. The N62
650-508: Was a clean sheet design and not a direct evolution of the M60 engine line that evolved into the M62 engine. The N62 4.4L has a bore of 92 mm (3.6 in) and stroke of 82.7 mm (3.26 in) for a total displacement of 4,398cc and features double-VANOS variable valve timing on both the intake and exhaust camshafts (the M62 features variable valve timing on only the intake camshaft). As per
676-401: Was introduced in 2018. Two variants are offered: N63B44M3 and N63B44T3. 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. This smaller variant was sold in the Chinese market. Due to
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