Wednesday, August 13, 2008

Nissan Engine



A V6 engine is a V engine with six cylinders. It is the second most common engine configuration in modern cars after the straight-4; it shares with that engine a compactness very suited to the popular front-wheel drive layout, and is becoming more popular as car weights increase. The first V6 was introduced by Lancia in 1950 with the Lancia Aurelia, other manufacturers took note and soon other V6 engines were in use. The design really took off after the 1962 introduction of the Buick Special. Though the model was not a spectacular success, it was the first mass-produced V6 engine. In 1983 Nissan produced Japan's first V6 engine with the VG series.




The heart and soul of the Z, since the original 1970 model, is its engine. Again for 2006, every 350Z offers a standard 3.5-liter VQ35DE V6 engine, which delivers not only outstanding start-off acceleration and high-speed passing performance, but also torque characteristics suitable for city driving. The engine utilizes an advanced intake port design and Continuously Variable Valve Timing Control System (CVTCS) technology. Drivability has been further improved by adopting an electronically controlled “drive-by-wire” throttle and the use of a highly rigid cylinder block.




Aluminum block and heads reduce engine weight, contributing to improved fuel economy and performance. Lighter pistons and connecting rods trim mass, allowing the engine to respond and rev more freely, while lightweight, hollow camshafts help reduce energy losses when the engine is running. The Z also features a lightweight, one-piece, carbon fiber reinforced plastic driveshaft unit.




Along with a powerful engine, the Z produces a powerful sports car sound to match – one without the low frequency booming or rumbling that can grow tiresome on long trips or high-pitched mechanical sounds. The exhaust sound is maximized at low RPM (1,000-3,500 RPM), but quiet at normal cruising range. Intake sound is maximized at high RPM (3,500-6,000 RPM), especially at wide throttle openings, but toned down during cruising.


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