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Nissan Performance Magazine Project QG18DE




























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A write up by Keith Sipmann, Editor for the Nissan Performance Magazine located online at www.nissanperformancemag.com

Last Updated: 5/20/02

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This car is a super black 2000 Nissan Sentra XE powered by Nissans new QG18DE engine. At 126 horsepower @6,400rpm and 129lbs of torque at 2,400rpm this car isn't an "off the showroom floor drag racer", but it is moderately quick around the town. In its stock form this car propels itself down a quarter mile drag strip between 17-18 seconds depending on the driver. Not heart stopping numbers by any means, but it is bone stock and there is much work to be done. The 126 hp / 129lbs tq that is created by this 1.8 liter, 1796cc, 9.5:1 compression, twin cam, 16 valve, 4 cylinder engine really comes in handy in rush hour traffic and city driving. This engine makes most of its peak torque at low RPM levels, much like the Skyline 280 Type-M.

The QG18DE made its debut earlier in 2000, in the new generation Primera and features both Nissan Valve Timing Control System (NVCS) and Nissan Direct Ignition System (NDIS).

The new engine features a traditional iron block, with an aluminum head and lightweight plastic rocker cover. It is among the first petrol engines in the world to also feature a swirl-control valve designed to enhance combustion. Governing its operation, and that of the new electronically controlled exhaust gas recirculation system and all other engine functions is a powerful new, 32-bit engine management system.

The QG18DE's engine management features also full on-board diagnostics in-line with CED III emissions regulations. If a malfunction or suspected malfunction of any size is detected anywhere in the emissions control systems, the driver is alerted and a note made of the incident within the memory of the vehicle's diagnostic system.