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Nissan QG engine

From Wikipedia, the free encyclopedia

Nissan logo.svg
QG engine
QG18DE.jpg
QG18DE engine at the Nissan Engine Museum
Overview
ManufacturerNissan Machinery (Aichi Kikai)
Layout
ConfigurationStraight-4
Displacement1.3–1.8 L (1,295–1,769 cc)
Cylinder bore71 mm (2.8 in)
73.6 mm (2.90 in)
76 mm (2.99 in)
80 mm (3.15 in)
Piston stroke81.8 mm (3.22 in)
88 mm (3.46 in)
Block materialCast-iron
Head materialAluminum
ValvetrainDOHC 4 valves x cyl. with VVT
Compression ratio9.5:1
RPM range
Redline6500
Combustion
Fuel systemElectronic fuel injection
MPFI (in QG18DE)
Direct injection (optional in NEO Di)
Fuel typeGasoline
Natural gas (in QG18DEN)
Cooling systemWater-cooled
Output
Power output87–130 hp (65–97 kW)
Torque output130–174 N⋅m (96–128 lb⋅ft)

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]

YouTube Encyclopedic

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  • ✪ nissan sunny motor QG15(DE).mp4
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Transcription

Contents

QG13DE

The QG13DE is a 1.3 L (1,295 cc) DOHC 16-valve with 4-cylinder. It produces 87 hp (65 kW) at 6000 rpm and 130 N⋅m (96 lb⋅ft) at 4400 rpm. Bore x Stroke= 71 mm × 81.8 mm (2.80 in × 3.22 in)

It is used in the following vehicles:

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 140 hp (104 kW) at 6000 rpm and 143 N⋅m (105 lb⋅ft) at 4400 rpm and later 105 hp (78 kW) at 6000 rpm.

This engine is used in:

Power outputs for N16 Almera:

  • '00-'03: 90ps
  • '03-'06: 98ps

QG16DE

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 88 kW (118 hp) at 6000 rpm and 165 N⋅m (122 lb⋅ft) at 4000 rpm. 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 QG18DD produces 130 hp (97 kW) at 6000 rpm and 174 N⋅m (128 lb⋅ft) at 2800 rpm.

It is used in the following vehicles:

QG18DE

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 hp (86 kW) to 128 hp (95 kW) 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 (codes can be read/erased by a variety of readers, e.g. Actron blaZt). 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:

QG18DEN

The QG18DEN is the natural gas version of the QG18DE. It produces 105 hp (78 kW) 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

  1. ^ "Archived copy". Archived from the original on 2002-06-01. Retrieved 2007-12-01.CS1 maint: archived copy as title (link) Aichi Machine Industry
  2. ^ [1] Archived October 10, 2008, at the Wayback Machine
  3. ^ Nissan press release, November 20, 2000: http://www.nissan-global.com/GCC/Japan/NEWS/20001120_10e.html
This page was last edited on 23 September 2019, at 01:22
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