VR38DETT

The VR38DETT is a 3.8-liter twin-turbocharged V6 engine developed by Nissan for the Nissan GT-R, beginning with the R35 generation introduced in 2007. The name reflects Nissan’s VR engine family (VR), the 3.8-liter displacement (38), and the DETT suffix, which denotes dual overhead cams with electronically controlled twin turbochargers.

Technically, the engine uses a 24-valve DOHC valvetrain, an aluminum block and heads, and gasoline direct injection. It employs a dry-sump lubrication system and separate, sequential twin turbochargers with intercooling. The valvetrain typically features variable timing on both camshafts to optimize power, response, and efficiency across the rev range.

The VR38DETT powers the GT-R across its various iterations and model years, with power outputs that have evolved through tuning and updates. In early versions it produced roughly 480 horsepower, while later variants and the Nismo version deliver progressively higher outputs, commonly reaching around 600 horsepower in tuned configurations. Torque is delivered broadly across the rev range, contributing to strong acceleration and tractable performance.

Applications and reception: The engine is closely associated with the GT-R, contributing to the model’s high-performance capability and distinctive all-wheel-drive performance. It is designed for high-speed operation and sustained track use, with maintenance requirements typical of modern high-output turbocharged engines.