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| Nissan QG engine | |
|---|---|
 QG18DE engine at theNissan Engine Museum | |
| Overview | |
| Manufacturer | Nissan Machinery (Aichi Kikai) |
| Layout | |
| Configuration | Straight-4 |
| Displacement | 1.3–1.8 L (1,295–1,769 cc) |
| Cylinder bore | 71 mm (2.8 in) 73.6 mm (2.90 in) 76 mm (2.99 in) 80 mm (3.15 in) |
| Piston stroke | 81.8 mm (3.22 in) 88 mm (3.46 in) |
| Cylinder block material | Cast-iron |
| Cylinder head material | Aluminum |
| Valvetrain | DOHC4 valves x cyl. withVVT |
| Compression ratio | 9.5:1 |
| RPM range | |
| Max. engine speed | 6500 |
| Combustion | |
| Fuel system | Electronic fuel injection MPFI (in QG18DE) Direct injection (optional inNEO Di) |
| Fuel type | Gasoline Natural gas (in QG18DEN) |
| Cooling system | Water-cooled |
| Output | |
| Power output | 87–130 PS (64–96 kW) |
| Torque output | 130–174 N⋅m (96–128 lb⋅ft) |
| Chronology | |
| Predecessor | Nissan GA engine Nissan SR engine |
TheQG 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-4piston engine fromNissan. It is alean-burn aluminumDOHC 4-valve design withvariable valve timing and optionalNEO Didirect injection.
The QG engines were designed by Nissan'sAichi Kikai division[1] inJapan. Nissan websites state the QG as standing for "Quality and Green".[2]
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:
Water-cooled straight 4cylinder 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:
The QG16DE is a 1.6 L (1,597 cc) straight 4-cylinder engine withdouble over head camshafts with 16 valves. The cylinder head also featuresNissan 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 theGA16DE, 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:
The 1.8 L direct-injectionQG18DD 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:
The 1.8 L (1,769 cc)QG18DE was designed for Nissan byAichi Machine Industry,Japan. It is manufactured both inJapan and theMexican city ofAguascalientes. 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, usesMulti-port fuel injection, forged-steelconnecting rods, two single-piece cast camshafts and a cast-aluminum intake manifold. It also featuresN-VCT (Nissan's Valve Timing Control technology). This engine received theRJC Technology of The Year Award of 2001.[3]
Specifications
Emissions Control Devices
The QG18DE is used in the following vehicles:
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 theNissan AD Van from 2000 to 2008.
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