Nissan VR engine

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Nissan VR engine
Nissan VR38DETT Engine.JPG
Overview
Manufacturer Nissan
Production 2007–present
Combustion chamber
Configuration DOHC 60° V6
Chronology
Predecessor RB26DETT

The VR is a 3.8 L twin-turbo DOHC V6 automobile engine from Nissan. An evolution of the widely successful VQ series, it draws on developments from the VRH JGTC and Nissan R390 GT1 Le Mans racing engines.

Designated the VR38DETT by Nissan, the engine is currently used in the 2007–present Nissan GT-R[1] and the limited production Nissan Juke-R.

VR38DETT[edit]

The VR38DETT sports 24 valves controlled by dual overhead camshafts with variable valve timing (intake only). The block is cast aluminum with 0.15 mm (0.006 in) plasma-sprayed cylinder liner bores. The turbine housings for the two IHI turbochargers are integrated into the exhaust manifolds to decrease weight and bolster vehicle balance. The engine also sports 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.[2]

The VR38DETT is hand assembled in a special clean-room environment at Nissan's Yokohama facility by specially trained technicians, called "Takumi".


Since 2011 all VR38DETTs produced have come with a Red top engine cover.

Fully equipped with the first set of catalytic converters, turbos, all of the engine driven accessories, front differential assembly, and turbo outlet pipes, the motor weighs 608 lb (276 kg).[3] It is currently the only version of the VR engine in production.

Engine reference[edit]

Engine code Vehicle Year Displacement Weight Bore Stroke C.R. Max. power Max. torque Features
VR38DETT Nissan GT-R 2007–current 3,799 cc (3.8 L; 231.8 cu in) approx.600 lb (272.16 kg) 95.5 mm (3.76 in) 88.4 mm (3.48 in) 9.0:1 approx. 480 PS (353 kW) - 600 PS (441 kW) at 6,400 rpm 588 N·m (434 lbf·ft) - 652 N·m (481 lbf·ft) from 3,200–6,000 rpm DOHC per bank
Variable inlet cam phasing
Twin Turbo
VR38DETT Engine.

Other pertinent features of the VR38DETT include:

  • Continuously variable valve timing control system (CVTCS) on intake valves
  • Aluminum cylinder block with high-endurance/low-friction plasma-sprayed bores
  • Iridium-tipped spark plugs
  • Electronic drive-by-wire throttle
  • 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:

Racing:

See also[edit]

References[edit]