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Reciprocating internal combustion engine
Nissan QG engine
QG18DE engine at the Nissan 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
DOHC 4 valves x cyl. with VVT
Compression ratio
9.5:1
RPM range
Max. engine speed
6500
Combustion
Fuel system
Electronic fuel injection MPFI (in QG18DE) Direct injection (optional in NEO Di)
Fuel type
Gasoline Natural gas (in QG18DEN)
Cooling system
Water-cooled
Output
Power output
87–130 hp (65–97 kW)
Torque output
130–174 N⋅m (96–128 lb⋅ft)
Chronology
Predecessor
Nissan GA engine
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.
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]
^"Archived copy". Archived from the original on 2002-06-01. Retrieved 2007-12-01.{{cite web}}: CS1 maint: archived copy as title (link) Aichi Machine Industry
^[1] Archived October 10, 2008, at the Wayback Machine
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