Without such restrictions, the engine is reputedly capable of producing nearly 800 PS (588 kW 789 hp). The engine idles at around 3,500 rpm and is restricted to the above specified power output. The VK45DE was previously used in Nissan's 350Z Super GT car in 2007, replacing the previous VQ30DETT used in that car. It uses SFI, has 4 titanium valves per cylinder with VVT and features forged steel connecting rods, 4 one-piece cast camshafts, an unusual variable-flow induction system optimizes airflow for low- and high-speed operation, low-friction molybdenum-coated pistons, and a microfinished crankshaft.Ī flat-plane crankshaft version of the VK45DE was used by Nismo for Super GT races with the Nissan GT-R instead of using the GT-R's VR38DETT twin-turbo V6 engine. It has an aluminum engine block and aluminum DOHC cylinder heads. ![]() The 4,494 cc (4.5 L 274.2 cu in) VK45DE was introduced in 2002 and is built in Yokohama, Japan. The intake manifold directs air through different paths at different engine speeds to optimise low-end torque or high-end horsepower. Changes include: a variable intake manifold, newly designed heads, and a larger drive by wire throttle chamber. ![]() The VK engine was originally based on Nissan's VQ V6 rather than the VH V8 used in previous Q45/ Cima models. ![]() The VK engine (formerly known as the ZH) is a V8 piston engine from Nissan.
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