The 2010 Nissan GT-R 3.8-Liter Engine Features Two IHI Turbochargers
Nissan’s high-performance GT-R returns for 2010 with 5 more horsepower for its twin-turbocharged V6.
The GT-R uses Nissan’s 3.8-liter, all-aluminum VR38DETT engine. Although this 24-valve, DOHC V6 is loosely based on Nissan’s familiar VQ engine, it has many advanced features, including a stiffer, closed-deck cylinder block; plasma-sprayed cylinder bores to reduce weight and friction; and an unusual wet/dry-sump oil system to ensure proper lubrication in high-g turns. Curiously, it does not use the sophisticated Variable Valve Event and Lift (VVEL) system from the 370Z; it has variable valve timing on the intake cam only. Each engine is hand-built by a single technician in a special clean-room facility, to ensure precise assembly.
The 3.8-liter engine features two IHI turbochargers, each with its own air-to-air intercooler. The turbines themselves are made of stainless steel, to reduce mass and improve spool-up time. Each turbocharger feeds one cylinder bank, providing up to 10.2 pounds of boost. The turbochargers are integral to the exhaust manifolds, making turbo upgrades more difficult.
Tags: chevrolet corvette, chevrolet corvette z06, dodge challenger, ihi turbochargers, proper lubrication, variable geometry, variable valve event, variable valve timing