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Nissan QG engine

Reciprocating internal combustion engine From Wikipedia, the free encyclopedia

Nissan QG engine
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The QG engine is a 1.3 L (1,295 cc), 1.5 L (1,497 cc), 1.6 L (1,597 cc) and 1.8 L (1,769 cc) straight-4 piston engine from Nissan. It is a lean-burn aluminum DOHC 4-valve design with variable valve timing and optional NEO Di direct injection.

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The QG engines were designed by Nissan's Aichi Kikai division [1] in Japan. Nissan websites state the QG as standing for "Quality and Green".[2]

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QG13DE

The QG13DE is a 1.3 L (1,295 cc) DOHC 16-valve with 4-cylinder. It produces 87 PS (64 kW; 86 hp) at 6000 rpm and 130 N⋅m (96 lb⋅ft) at 4400 rpm in the initial trim. Bore x Stroke= 71 mm × 81.8 mm (2.80 in × 3.22 in)

It is used in the following vehicles:

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QG15DE

Water-cooled straight 4 cylinder engine with 1.5 L (1,497 cc) capacity and DOHC control. Bore and stroke are 73.6 mm × 88 mm (2.90 in × 3.46 in). Output is 90 PS (66 kW; 89 hp) at 5600 rpm and 128 N⋅m (94 lb⋅ft) at 2800 rpm in initial, European specifications, and later 105 PS (77 kW; 104 hp) at 6000 rpm and 143 N⋅m (105 lb⋅ft) at 4400 rpm.

This engine is used in:

Power outputs for N16 Almera:

  • '00-'02: 90ps
  • '02-'06: 98ps
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QG16DE

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The QG16DE is a 1.6 L (1,597 cc) straight 4-cylinder engine with double over head camshafts with 16 valves. The cylinder head also features Nissan Variable Cam Timing (N-VCT) and micro-polished camshafts. A new water pump assembly has been designed for the QG16DE; the design is based on the water pump from the GA16DE, the changes made it more efficient and reliable than its predecessor. The engine produces 120 PS (88 kW; 118 hp) at 6000 rpm and 165 N⋅m (122 lb⋅ft) at 4000 rpm, although a variety of other power figures are shown for other years and in other installations. Bore and stroke is 76 mm × 88 mm (2.99 in × 3.46 in).

Specifications

It is used in the following vehicles:

QG18DD

The 1.8 L direct-injection QG18DD produces 130 PS (96 kW; 128 hp) at 6000 rpm and 174 N⋅m (128 lb⋅ft) at 2800 rpm.

It is used in the following vehicles:

QG18DE

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The 1.8 L (1,769 cc) QG18DE was designed for Nissan by Aichi Machine Industry, Japan. It is manufactured both in Japan and the Mexican city of Aguascalientes. Bore and stroke is 80 mm × 88 mm (3.15 in × 3.46 in). The engine is tuned to achieve most of its torque at low revs at the expense of raw power at high revs, making the engine very responsive in day-to-day driving. It has a cast-iron engine block, aluminum DOHC cylinder head, uses Multi-port fuel injection, forged-steel connecting rods, two single-piece cast camshafts and a cast-aluminum intake manifold. It also features N-VCT (Nissan's Valve Timing Control technology). This engine received the RJC Technology of The Year Award of 2001.[3]

Specifications

  • Displacement - 1.8 L (1,769 cc)
  • Layout - DOHC Inline-4 (Straight-4) with VVT tech (called NVTC).
  • Valves - 16, 4 for each cylinder
  • Power - 115–130 PS (85–96 kW; 113–128 hp) at 6000 rpm
  • Torque - 122 lb⋅ft (165 N⋅m) to 130 lb⋅ft (176 N⋅m) at 2800 rpm
  • Redline - 6500 rpm
  • Fuel Delivery System - electronic fuel injection
  • Fuel compression ratio - 9.5:1

Emissions Control Devices

  • OBDII - On-board Diagnostic System. Nissan Pulsar N16 Models without EuroOBD in Australia do not have OBDII.
  • EGR - Exhaust Gas Recirculation
  • HO2S - (4) Oxygen Sensors (2 before exhaust catalyst, 2 after) - note a series 2 1.8l has only 2 O2 sensors: 1 pre-catalytic-converter and 1 downstream from it.
  • TWC - Three Way Catalyst (2 in exhaust manifold, 1 under car).
  • EVAP - Charcoal Evaporative Purge Canister.
  • Ignition Timing: 9 degrees BTDC (can be altered +/- 2 degrees using CONSULT-II handheld diagnostic tester, e.g. blaZt).
  • Knock Sensor - located on engine block; retards timing if pinging/detonation is detected.
  • Heated Throttle Body - heated by engine coolant.

The QG18DE is used in the following vehicles:

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QG18DEN

The QG18DEN is the natural gas version of the QG18DE. It produces 105 PS (77 kW; 104 hp) at 5600 rpm and 149 N⋅m (110 lb⋅ft) at 2800 rpm. Bore and stroke are 80 mm × 88 mm (3.15 in × 3.46 in). It was used in the Nissan AD Van from 2000 to 2008.

See also

References

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