The VR is a series of

twin-turbo Twin-turbo (not to be confused with a twincharger setup, which is a combination of a supercharger and a turbocharger) refers to an engine in which two turbochargers work in tandem to compress the intake fuel/air mixture (or intake air, in the case ...

DOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion c ...

V6 automobile engines from

Nissan , trade name, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells ...

with displacements varying from . An evolution of the widely successful VQ series, it also draws on developments from the VRH,

JGTC Super GT (stylized as SUPER GT) is a grand touring car racing series that began in 1993. Launched as the , generally referred to as either the JGTC or the All Japan Grand Touring Car Championship, the series was renamed to Super GT in 2005. It is ...

, and

Nissan R390 GT1 The Nissan R390 GT1 was a racing car built in Atsugi, Japan. It was designed primarily to gain a suitable racing entry in the 24 Hours of Le Mans in 1997 and 1998. It was built to race under the grand touring style rules, requiring a homologated ...

Le Mans Le Mans (, ) is a city in northwestern France on the Sarthe River where it meets the Huisne. Traditionally the capital of the province of Maine, it is now the capital of the Sarthe department and the seat of the Roman Catholic diocese of Le Man ...

racing engines.

DDTT series

VR30DDTT

Announced by

Infiniti is the luxury vehicle division of the Japanese automaker Nissan. Infiniti officially started selling vehicles on November 8, 1989, in North America. The marketing network for Infiniti-branded vehicles included dealers in over 50 countries in ...

on December 15, 2015 the VR30DDTT was first made available in the Infiniti Q50 sedan, followed by the Infiniti Q60 coupé a year later. Both platforms come in a version. It is on the

Ward's 10 Best Engines 10 of the World's best engines is an annual list of the ten ''"''best''"'' automobile engines available in the U.S. market, that are selected by '' Ward's AutoWorld'' magazine. The list was started in 1994 for Model Year 1995, and has been drawn ev ...

list for 2017 and 2018. Features: * Aluminium block with arc sprayed mirror coating to

cylinder bore In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore by ...

s * Aluminium

cylinder head In an internal combustion engine, the cylinder head (often abbreviated to simply "head") sits above the cylinders and forms the roof of the combustion chamber. In sidevalve engines, the head is a simple sheet of metal; whereas in more modern ov ...

* Lightweight resin intake and lower

oil pan A sump is a low space that collects often undesirable liquids such as water or chemicals. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers. Sump can also refer to an area in a cave ...

* Compact twin direct-mount turbos with integrated

exhaust manifold In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word ''manifold'' comes from the Old English word ''manigfeald'' (from the Anglo-Saxon ''manig'' anyand ''feald'' old and refe ...

and electronic

wastegate A wastegate is a valve that controls the flow of exhaust gases to the turbine wheel in a turbocharged engine system.Robson, D. (2018). Aircraft General Knowledge. Aviation Theory Centre Pty Ltd. . Diversion of exhaust gases regulates the turbine ...

actuator An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover". An actuator requires a control device (controlled by control signal) a ...

* Twin water-to-air charge coolers with one /two water pumps * Electronically controlled variable displacement oil pump * Intake: electronic

Variable valve timing In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with varia ...

Control (VTC) * Exhaust: hydraulic continuously variable VTC * Fuel system: direct injection VR30DDTT_Engine

Applications:

Production

Production of the VR30DDTT engine began in 2016 at the powertrain plant in Iwaki, Fukushima, Japan.

DETT series

Nissan VR38DETT Engine at Nissan Engine Museum

Nissan VR39DETT Engine at Nissan Engine Museum

Nissan VR40DETT Engine at Nissan Engine Museum

Nissan VR41DETT Engine at Nissan Engine Museum

VR38DETT

Designated the VR38DETT by Nissan, the engine was used from 2007–2022 in the

Nissan GT-R The Nissan GT-R (Japanese: 日産・GT-R, ''Nissan GT-R''), is a high-performance sports car and grand tourer produced by Nissan, unveiled in 2007. It is the successor to the Skyline GT-R, a high performance variant of the Nissan Skyline. Alth ...

and the limited production Nissan Juke-R. The VR38DETT featured 24 valves controlled by

dual overhead camshaft An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion cha ...

s (2 per cylinder head) with variable valve timing on the intake only. The block is

cast aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It ...

with plasma-sprayed

cylinder liner In a reciprocating engine, the cylinder is the space in which a piston travels. The inner surface of the cylinder is formed from either a thin metallic liner (also called "sleeve") or a surface coating applied to the engine block. A piston is se ...

bores. This coating provides a hard protective layer for the

piston A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tig ...

rings to slide on as the piston moves up and down during its power cycle. The turbine housings for the two

IHI Ihi, Ehee (Nepal Bhasa:ईही) is a ceremony in the Newar community in Nepal in which pre-adolescent girls are "married" to the Suvarna Kumar which is a symbol of the god Vishnu, ensuring that the girl becomes and remains fertile. It is bel ...

turbochargers are integrated into the exhaust manifolds to decrease weight and bolster vehicle balance. The engine also features a pressurized lubrication system controlled thermostatically. The VR38DETT is equipped with a feedback control system that changes air fuel ratio depending on the engine load which has a significant effect on reducing the fuel consumption. 2012 Nissan GT-R engine

Fully equipped with the first set of

catalytic converter A catalytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction. Catalytic converters are usually ...

s, turbos, all of the engine driven accessories, front differential assembly, and turbo outlet pipes, the engine weighed . Other pertinent features of the VR38DETT include: * Continuously variable valve timing control system (

CVTCS Continuous Variable Valve Timing Control System (CVVTCS) is an automobile variable valve timing technology developed by Nissan. It is also used in a twin CVTC configuration on engines like the Nissan Juke's MR16DDT engine. CVVTCS is the successo ...

) on intake valves * Aluminum cylinder block with high-endurance/low-friction plasma-sprayed bores * Iridium-tipped

spark plug A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air ...

s * Electronic drive-by-wire throttle * Multi port fuel injection * Pressurized lubrication system with thermostatically controlled cooling and magnesium oil sump * Fully symmetrical dual intake and low back-pressure exhaust system * Secondary air intake system to rapidly heat catalysts to peak cleaning efficiency * 50 State LEV2/ULEV Applications:

VR38DETT NISMO Engine Tuning Menu Concept (2016)

It is a version of VR38DETT engine used in Nissan GT-R, with GT3-spec

camshaft A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems ...

connecting rod A connecting rod, also called a 'con rod', is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the cranksh ...

and connecting rod bolt,

intercooler An intercooler is a heat exchanger used to cool a gas after compression. Often found in turbocharged engines, intercoolers are also used in air compressors, air conditioners, refrigeration and gas turbines. Internal combustion engines Mo ...

, intercooler piping,

turbocharger In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

, NISMO 1st and 2nd catalyzers, titanium

muffler A muffler (North American and Australian English) or silencer (British English) is a device for reducing the noise emitted by the exhaust of an internal combustion engine—especially a noise-deadening device forming part of the exhaust sys ...

. The engine was unveiled in 2016 Tokyo Auto Salon.

Production

The engines are hand built by five specially trained mechanics called "Takumi Craftsmens" on a special line at Nissan's Yokohama plant and their names are badged on every GT-R engine. The cars are built at their Tochigi plant on a shared production line.

Engine reference

References

{{nissan VR V6 engines Gasoline engines by model

DDTT series

VR30DDTT

Production

DETT series

VR38DETT

VR38DETT NISMO Engine Tuning Menu Concept (2016)

Production

Engine reference

See also

References