Friday, September 30, 2011

14 years of brilliant Nissan VQ engine Past and Present

"Nissan Technology" has been Nissan's brand promise, the famous Nissan VQ engine series is the best evidence confirms the slogan, Ward 14 consecutive years to obtain the title of world's top ten engines of the VQ engine series is also a touch of history legend colors. Here, we take everyone together to understand the next Nissan VQ engine series of past lives.
Nissan's VQ engine series has a 2.0-4.0L displacement between the number of 16 years were launched 14 different models of engines. VQ-series engine in common is the use of V-type 6-cylinder form, all-aluminum cylinder block material, DOHC DOHC, 24-valve structure and EGI order multi-point EFI system, with a later version of the NICS variable intake control system, CVTC continuously variable valve timing control system and VVEL variable valve lift system. Also launched during the use of NEO-Di direct injection engine technology VQ25DD/VQ30DD, and a series of high-performance turbocharged versions. VQ engine series will be launched from a wide range of high-class cars for Nissan, Infiniti sports car series and models.

Since 1995, the authority of the United States car magazine "Ward's Auto World" will be selected each year's top ten engines, selection criteria are more comprehensive for the selected engine performance, power output performance, torque, versatility, economy, environmental requirements, and other items are forward-looking vertical and horizontal comparison. VQ engine series from 1995-2008 was among the selected 14 consecutive times.

1994-2001
Award-winning Model: VQ30DE
Others of the same model engine: VQ20DE/VQ25DE
Equipment model :1994-2003 Nissan grace; 2004 - to today's products such elegance

Research and development for Nissan VQ began in 1983, Nissan based on the "feather" the development of ideas, lightweight, efficient, energy-saving demands of the new V6 engine started a new research and development, to most people's point of view, soft seem difficult to feather light and powerful VQ engine and link, but Nissan hopes the engine is designed to a powerful impetus to feather soft, comfortable way to be completely free, to bring those strengths being the driving driving Take the fun. After six years of research and development, 570 billion yen in investment later, in 1994, the first factory in Japan IWAKIP VQ engine put into production.



"Grace is the first use of Nissan's VQ engine models."

The new high-performance engine in production then gradually replace the VG series engine, began to Nissan's large vehicles on the service. Listed in the year Nissan CEFIRO (grace), and it's equipped with a VQ-series 2.0L, 2.5L and 3.0L three displacement of the engine, the following year, 3.0L displacement of the VQ30DE engine for the first time won the United States "Ward's Auto World "" World Top Ten Engines "award. The next six years, VQ30DE also continuously selected.

To the present point of view, VQ30DE engine, and not too many highlights of the technology at all, but at the time of its technical level has reached a very high standard, 6 cylinder with a 60 ° V-type design, the design of both the angle ensure the best engine but also to ensure that the basic dimensions of the engine's highly smooth running, so that the engine's acoustic performance to be strengthened. Use the time leading DOHC DOHC, 24-valve structure, bore and stroke of 93mm and 73.3mm, compression ratio of 10.0:1, short-stroke design of a typical high-speed engine, according to a different tune, VQ35DE maximum power To 142-170kw/6400rpm, maximum torque 278-294Nm/4400rpm. Is to present the mainstream V6 engine standard, its performance does not fall behind.



"Powerful performance of VQ30DETT, maximum power 470 hp (350kw)"

Since then, the day after the VQ30DE-based production has also introduced performance-oriented turbocharged version of the VQ30DET and VQ30DETT (twin-turbocharged) engine, which has the blessing of the VQ30DETT two turbine engine maximum power achieved amazing 350kw, which is when competition in the GTR GT500 JGTC racing as well as the Fairlady Z GT500 car was on the Queen's engine. In 2001, the Nissan VQ engine matches the VVT ​​technology and introduced a new VQ35DE, the old version of the VQ30DE engine gradually withdraw from this stage of history.

2002-2006
Award-winning Model: VQ35DE
Others of the same model engine: VQ25DE/VQ23DE
Equipment models: 2004 - to produce your disability today; 2003 - to today Nissan Teana; 2003-2006 Nissan 350Z; 2003-2006 Infiniti G35, etc.



In 2001, the newly developed engine replaced the VQ30DE VQ35DE Nissan to become the main V6 engine, though still the DOHC VQ35DE DOHC 24-valve structure, the aluminum cylinder block structure, but it was after the cylinder re-design, bore and stroke of 95.5mm and 81.4mm, compression ratio 10.3:1, and skewed towards the high speed VQ30DE than more neutral bore and stroke ratio improved low speed engine performance. VQ35DE most prominent feature is malleable, and easily adapted for a wide range, both in performance-oriented 350Z also the sounds of nature or emphasis on comfort, you can find in its presence.



"VQ35DE cylinder heads."

To reduce friction cylinder, aluminum piston in the main Nissan at the molybdenum coated skirts to reduce friction, and the top of the piston with piston rings in the tank for the alumina film processing, making the engine wear and tear to a minimum. In addition, the use of the unique adaptive balancer so that the engine vibration can be reduced to a minimum, so that it has better comfort and ride. VQ35DE engine has also joined the joined the NICS variable intake control system and CVTC continuously variable valve timing control system, high flow throttle, so long intake manifold design technology, making the engine efficiency with higher intake to improve power and economy. According to a different tune, VQ35DE series can output at 6000 rpm and maximum power of 170-222kW, 4400 rpm and can output 334-363Nm of torque.



Teana is the most commonly seen in the use of VQ engine models

From 2002-2007, VQ35DE row again named the world's ten best engines Ward, until now, VQ35DE VQ-series is still the most widely used in the most classic type, quiet, smooth and powerful is its greatest advantage, and its small row volume version of the VQ25DE and VQ23DE you have equipment in the domestic sounds of nature, and is currently the most commonly seen in the VQ engine.

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