As a new generation sports car engine to lead the field in the 1990s, a 3.0 liter, 60°V, type 6 cylinder, 4 cam, 24 valve engine (VG30DETT) has been developed to achieve the utmost in high performance levels and reliability. it has been mounted on the new model 300ZX and announced in the North America and Japanese markets.
The VG30DETT engine is based on the previous VG30DE engine (the engine mounted on the former model 300ZX designed for the market in Japan). The main components, the major driving and the lubrication systems including such parts as the crank shaft,con-rod, cylinder block, piston, exhaust manifold, and oil pan of the VG30DE were thoroughly reviewed and revised. The VG30DETT engine is the result of redesigning the structure of the engine itself and its parts and components to assure durability under, high-level performance requirements.
To achieve outstanding power and quick response essential for such high-level performance, a completely independent dual intake, dual exhaust system below the air flow meter, was adopted. Further, the ECCS (Electronic Con-centrated Control System) and high-precision, highly sophisticated NVCS (Nissan Valve Timing Control System) and NIDS (Nissan Drive Ignition System) were adopted. This has resulted in a maximum power output of 300 HP, the top level among volume production engines in the world. This paper, will outline the aim of VG30DETT development, its structure, performance, and technical features.