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Nissan VK engine

Field	Value
image	Nissan VK56DE 001.JPG
name	Nissan VK
manufacturer	Nissan (Nissan Machinery)
production	2002–present
configuration	90° V8
block	Aluminium
head	Aluminium
displacement	4494 cc
5026 cc
5552 cc
bore	93 mm
95.5 mm
98 mm
stroke	82.7 mm
87.7 mm
92 mm
power	305-650 hp
torque	385-485 lb.ft
predecessor	Nissan VH
valvetrain	DOHC 4 valves x cyl. with CVTCS and VVEL (some versions)
compression	11.0:1, 10.9:1
fuelsystem	SFI, GDI
fueltype	Gasoline
coolingsystem	Water cooled

5026 cc 5552 cc 95.5 mm 98 mm 87.7 mm 92 mm The VK engine is a V8 piston engine from Nissan. It is an aluminum DOHC 4-valve design.

The VK engine was originally based on Nissan's VQ V6 rather than the VH V8 used in previous Q45/Cima models. Changes include: a variable intake manifold, newly designed heads, and a larger drive by wire throttle chamber. The intake manifold directs air through different paths at different engine speeds to optimise low-end torque or high-end horsepower.

VK45DE

The 4494 cc VK45DE was introduced in 2002 and is built in Yokohama, Japan. Bore and stroke is 93x82.7 mm. Output is 340 hp at 6,400 rpm with 46 kgm of torque at 4,000 rpm. Redline is at 6,600 rpm. It has an aluminum engine block and aluminum DOHC cylinder heads. It uses SFI, has four titanium valves per cylinder with Continuous Variable Valve Timing and features forged steel connecting rods, four one-piece cast camshafts, an unusual variable-flow induction system optimizes airflow for low- and high-speed operation, low-friction molybdenum-coated pistons, and a microfinished forged crankshaft.

Motorsport

A flat-plane crankshaft version of the VK45DE was used by Nismo for Super GT races with the Nissan GT-R instead of using the GT-R's VR38DETT twin-turbo V6 engine. The VK45DE was previously used in Nissan's 350Z Super GT car in 2007, replacing the previous VQ30DETT used in that car. In race trim, the Super GT VK45DE produces 500 PS and 52 kgm of torque. The engine idles at around 3,500 rpm and is restricted to the above specified power output. Without such restrictions, the engine is reputedly capable of producing nearly 800 PS. Nismo reasons that by using the engine, they eliminate turbo lag, save weight and generally prefer the torque curve of the atmospheric V8. Also in the Super GT series, an unbranded VK45DE is used for "Mother Chassis" cars; the engine is labeled the GTA V8.

Applications

Years	Model	Power output	Torque
2002–2006	Infiniti Q45	340 hp	46 kgm
2003–2008	Infiniti FX45	320 hp	46.5 kgm
2003–2004	Infiniti M45	340 hp	46 kgm
2006–2010	Infiniti M45	325 hp	47 kgm
2004–2010	Nissan Fuga 450 GT	333 hp	47 kgm
2003–2010	Nissan President	276 hp	46 kgm
2007	Super GT Nissan 350Z	490 hp	52.5 kgm (Non-Production)
2008-2009	Super GT Nissan GT-R	490 hp	52.5 kgm (Non-Production)
2011–2016	Various LMP2 racing cars	450 hp	59.4 kgm (Non-Production)
2014–present	Super GT "Mother Chassis" cars	450 hp	59.4 kgm (Non-Production)

VK45DD

The VK45DD is a 4494 cc V8 engine that is very similar to the VK45DE but adds a direct injection fuel system. This was Nissan's first V8 with direct injection (NEO-Di). It officially produces 280 PS at 6,000 rpm and 46 kgm at 3,600 rpm, but it has unofficially over 300 PS. It has a compression ratio of 11.0:1, and a bore and stroke of 93x82.7 mm.

Applications

2001–2004 Nissan Cima (JDM)

VK50VE

The VK50VE is a 5026 cc V8 engine with 390 hp at 6,500 rpm and 51 kgm at 4,400 rpm and redline is set at 6,800 rpm. Bore x stroke are 95.5x87.7 mm and compression ratio is 10.9:1. The valvetrain is a dual overhead cam (DOHC) design with a continuously variable valve timing control system (CVTCS). The engine also features Nissan's VVEL valve timing technology.

Applications

2009–2013 Infiniti FX50
2014 Infiniti QX70
2015–2019 various LMP3 race cars

VK56DE

The VK56DE is a 5552 cc version built in Decherd, Tennessee. Bore and stroke is 98x92 mm. Output is 317 - at 4,900 rpm with 522 to of torque at 3,600 rpm. It has aluminum-alloy block and heads and low-friction molybdenum-coated pistons. The valvetrain is a dual overhead cam (DOHC) design with a continuously variable valve timing control system (CVTCS) on the intake valves. It also has four valves per cylinder with micro-finished camshafts and ductile iron cylinder liners for increased durability.

Motorsport

Nismo used the VK56DE for FIA GT1 racing in the Nissan GT-R GT1 from 2010 to 2011. In race trim, it produced 600 hp and 650 Nm of torque.

The Nissan Motorsport VK56DE was launched in Australia for the V8 Supercars Championship in 2013 by Kelly Racing in Melbourne. The engine has been reduced in capacity to 4990 cc to fit the V8 Supercars regulations. It has a bore and stroke of 102.69x75.31 mm. It was fitted to a Nissan Altima version of the V8 Supercars "Car of the Future" specification that competed from 2013 until 2019.

Applications

Years	Model	Power output
2004–2015	Nissan Armada	305 to	53.2 kgm
2004–2015	Nissan Titan	305 to	52.5 to
2004–2010	Infiniti QX56	315 to	54 to
2010–2016	Nissan Patrol	320 hp	54.4 kgm
2008–2012	Nissan Pathfinder	310 hp	53.5 kgm
2012–2016	Nissan NV2500 HD	317 hp	53.2 kgm
2012–2016	Nissan NV3500 HD	317 hp	53.2 kgm
2012–2016	Nissan NV Passenger	317 hp	53.2 kgm
2009–2011	Nissan GT-R GT1	600 hp	66.3 kgm (Non-Production)
2013–2019	Nissan Altima, Supercars Championship	650 hp	67 kgm (Non-Production)
2020–2024	Various LMP3 racing cars	420 bhp (Non-production)

Notes:

The Titan, Armada, and Pathfinder power figures are for regular 87 octane fuel. The 320 hp Infiniti QX56 & Nissan Patrol are tuned for premium (91+ octane) fuel.
Some VK56DE powered vehicles are E85 capable.

VK56VD

The VK56VD is a 5552 cc 32-valve, DOHC, Direct Injection Gasoline (DIG) aluminum-alloy V8 and features Nissan's latest VVEL (Variable Valve Event & Lift System). The direct injection system provides better wide-open throttle performance and improved fuel economy and emissions performance by reducing engine knock, improving combustion stability and controlling injection more precisely. Production ended in 2024.

Applications

Years	Model	Power output	Torque
2010–2023	Nissan Patrol	400 hp	57.1 kgm
2016–2023	Nissan Patrol Nismo	428 hp	57.6 kgm
2011–2024	Infiniti QX80	400 hp	57.1 kgm
2011–2013	Infiniti M56	420 hp	57.6 kgm
2014–2019	Infiniti Q70	420 to	57.1 to
2017–2021	Nissan NV2500 HD	375 hp	53.5 kgm
2017–2021	Nissan NV3500 HD	375 hp	53.5 kgm
2017–2021	Nissan NV Passenger	375 hp	53.5 kgm
2017–2024	Nissan Titan	400 hp	57.1 kgm
2017–2023	Nissan Armada	390-400 hp	54.6-57.1 kgm

References

"Autocar article about the Super GT Nissan GT-R".
"NISMO Japan's Super GT GT-R spec sheet in Japanese".
(7 December 2008). "YouTube video of NISMO engineer interview regarding the Super GT Nissan GT-R".
Collins, Sam. (26 August 2016). "GT300 Mother Chassis".
(April 2020). "Iconicweb FX Specs }}{{Dead link".
(2009-04-08). "Nissan GT1 GT-R news - GT-R goes GT1 - 20090 - BBC Top Gear". Topgear.com.
(2012-09-04). "Nissan Unveils 2013 V8 Supercar Engine". v8supercars.com.au.
Lloyd, Daniel. (2024-10-03). "V8 Farewell: LMP3 is Entering a New Turbocharged Era".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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