VR38DETT engine
Takumi 'specialist' assembles the VR38DETT engineNissan GT-R has a twin-turbo 3.8L V6 engine, model VR38DETT. Each engine is hand-assembled by a single technician – ‘Takumi’ or “master with greatest skill” in a clean room environment at the Nissan Yokohama engine plant. Starting from 2014, each engine bears a nameplate with the name of the engine builder. For a regular mass-production car, an engine is assembled on an assembly line, with different workers installing different parts because it’s faster.
Nissan GT-R engine nameplate The VR38DETT engine uses some of the valve train components and basic design of the well-known VQ35 motor that has been used in many Nissan models such as the Altima, Maxima and Pathfinder. In the VQ engine, the cylinders are made of cast iron sleeves pressed into the aluminum block. This is done to make the cylinder walls stronger to withstand up and down piston movement. To make the VR38 lighter, instead of heavy cast iron sleeves, the very thin layer (0.15 mm) of hard metal is applied to the cylinders using the plasma spray process. How the plasma spray process works: the stream of inert gas mixed with the powder of the coating material is heated using an electric arc and sprayed onto the cylinder walls.
As the weight distribution is very important, instead of opting for a heavier V8 or V10 engine, Nissan GT-R uses two high-performance IHI turbochargers (one at each side or ‘bank’) to get more power out of a smaller and lighter V6.
Nissan GT-R IHI turbochargers A turbocharger consists of two turbines (exhaust and intake) connected by one shaft; it works by using the energy of the fast exhaust gases exiting the engine to pump more air into the engine intake. When the car is accelerated, the exhaust-side turbine is spun by the exhaust gases, which in turn spins up the intake-side turbine. The intake-side turbine pushes the air into the engine under pressure. As the temperature of air entering the engine increases under pressure, two intercoolers are used to keep intake air cool and more dense. Pumping more air into the engine with turbochargers allows more fuel to be injected, which results in more power. The 3.8L V6 VR38 twin-turbo engine in the 2014 Nissan GT-R is rated at 545 horsepower at 6,400 rpm. Compare it to 429 horsepower of the 5.0L V8 in a 2013 Hyundai Genesis.
Nissan VR38DETT engine The VR38DETT has a twin-cam design (each cylinder head has two camshafts), with four valves per cylinder. A variable timing system is used on the intake side; the two bulging round covers in the front of the engine on the lower photo make space for the variable intake timing mechanism installed on the front ends of the intake cams. The intake camshafts are driven by a timing chain that is hidden behind the front engine cover. Similarly to the VQ engine, two smaller separate chains connect the intake and exhaust camshafts. The VR38DETT lubrication system is modified to withstand higher loads A dual-clutch transmission, (DCT) (sometimes referred to as a twin-clutch transmission or double-clutch transmission), is a type of automatic transmission or automated automotive transmission. It uses two separate clutches[1] for odd and even gear sets. It can fundamentally be described as two separate manual transmissions (with their respective clutches) contained within one housing, and working as one unit.[2][3] They are usually operated in a fully automatic mode, and many also have the ability to allow the driver to manually shift gears in semi-automatic mode,[1] albeit still carried out by the transmission's electro-hydraulics.fully synthetic oil: Mobil 1 0W-40 (100% synthetic) is specified oil for the 2013 Nissan GT-R. Similarly to most of cars with a turbocharger, the GT-R requires premium gasoline.