Nissan SR Engine - SR20DE and SR20De

SR20DE and SR20De

The Nissan SR20DE engine is used in over 15 Nissan models. It first appeared in October 1989 and has been gradually phased out since the introduction of the QR (low-emissions) engine family. The SR20DE carried nominal power ratings between 140 to 169 Horsepower (104 to 126 kW) from the factory.

The breakdown of the engine code is as follows:

  • SR - Engine Code
  • 20 - 2.0 Litres
  • D - Dual Overhead Cam
  • E - Multi-port Fuel Injection
  • e - SR20DE LEV-version
  • RR - Roller rocker motor

This engine has the following specifications (SAE, 1991)

The Specs
Type: Water cooled, 4 cycle in-line 4 cylinder
Combustion Chamber: Cross flow, pentroof type
Valve mechanism: DOHC, 4 valves per cylinder, chain drive
Displacement: 1998cc
Bore x Stroke: 86.0 x 86.0mm
Bore Pitch: 97.0mm
Block Height: 211.3mm
Compression ratio: 9.5:1
Crankshaft journal diameter: 55.0mm
Crankpin diameter: 48.0mm
Con rod length: 136.3mm
Valve diameters: Intake: 34.0mm, Exhaust: 30.0mm
Dimensions: 685 x 610 x 615mm
Maximum power: 140 hp-169 hp at 6400 rpm (SAE net)
Maximum torque: 132 lb·ft at 4800 rpm (SAE net)

It was used in the following vehicles:

Model Years Produced
180SX 1991–1992, 1994–1997
200SX SE-R 1995–1998
Almera 1996–1999
Avenir 1990, 1992–1995, 1997–2001
Bluebird 1989, 1991–1993, 1995–1998
Liberty 1998–2000
Infiniti G20 1991–2002
NX2000 1991–1996
Prairie Joy 1995–1997
Presea 1990–1993, 1995, 1997–1998
Primera 1990–2002
Pulsar 1991–2000
R'nessa 1997–1998, 2000
Rasheen 1998
Sentra 1991–1994, 1998–2001
Serena 1991–1995, 1997–2000
Silvia 1991–1993 1995-1996, 1998–2002
Wingroad 1996–1999

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