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Nissan SR engine: Wikis


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The SR engine is a 1.6 L, 1.8 L, or 2.0 L straight-4 4-stroke internal combustion gasoline engine manufactured by Nissan. It features an aluminum head and aluminum block with steel sleeves in selected models, the average JDM engines are cast iron blocks and steel-aluminum alloy heads, this type of block was sometimes used to save manufacturing costs on lower trim cars. DOHC 4-valve design, with some versions incorporating variable valve timing. The engine was used in many small to medium Nissan vehicles, including high-performance turbocharged variants. It was designed by Nissan as a replacement for the earlier CA series of engines. Power output shown is JIS Net PS or ECE Net kilowatts unless otherwise indicated.



The SR18Di is a 1.8 L (1838 cc) DOHC engine. It produces 110 PS (81 kW) @6500 rpm and 150 nm @4000 rpm.

Based on the single Throttle Body Mono Injection System, it was installed on JDM cars and some rare UK versions, this system was featured as a more economical option vs the more sporty SR20DE.

This is an example of cast iron block, in the pursuit of a more economical type of trim Nissan put this blocks on some cars like the Primera.

In regard to the Nissan Primera vehicles this system was only used on the P10 generation and due to the low overall power this engine option was dropped on the next generation, this engine was never been installed on the US counterpart the Infiniti G20.

It is used in the following vehicles:


The SR18DE is a 1.8 L (1838 cc) DOHC engine. It produces 125 PS (92 kW) @6000 rpm and 156 nm @4800 rpm.

Contrary to the (Di) variant this one features an electronic Multi Point Fuel Injection System ECCS (Electronic Concentrated Control System) by Nissan.

It is used in the following vehicles;


The SR20Di is a 2.0 L (1998 cc) DOHC engine. It produces 122 PS (89 kW). Bore and stroke are 86 mm (3.4 in) and 86 mm (3.4 in).

Similar to the 1.8 liter version except for bigger displacement it´s the same mono-injection system on the throttle body.

It is used in the following vehicles:

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 design was very responsive to aftermarket improvements and became a favorite among compact sports car enthusiasts during its operational life especially as it revved very high. (redline @ 7500rpm)

The breakdown of the engine code is as follows:

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

This engine has the following specs according to a SAE paper released in 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: 140hp at 6400 rpm ( SAE net)
Maximum torque: 132 ft-lb 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 1991-1993
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


S13 Silvia SR20DET NS Mounting, Coil On Plug (custom yellow paint)
U13 Bluebird SR20DET EW Mounting, Distributor

It was available in the following vehicles:

Several other Nissan Vehicles that didn't come with a SR20DET from the factory are commonly transplanted with this engine as a performance upgrade:


The 1.6 L (1596 cc) SR16VE has Nissan's Neo VVL variable valve timing with lift control. It produces 175 PS (129 kW) @7800 rpm and 119 ft·lbf (161 Nm) @7200 rpm. Redline is at 8300 rpm.

It is used in the following vehicles:



This version was used in the limited-production (200 produced[citation needed]) Nissan Pulsar VZ-R N1, produced from 1997 to 1998.
These cars were tuned by Autech Japan.
300 Lucino versions in series 1[citation needed]
200 Serie versions in series 1[citation needed]
300 Lucino versions in series 2[citation needed]
200 Serie versions in series 2[citation needed]
It made 200 PS (147 kW) @ 7800 rpm and 134 ft·lbf (181 Nm) @ 7600 rpm. Redline of the N1 Version 2 (1998) is at 8600 rpm. This is the most powerful production 1.6l JDM normally aspirated engine ever made.[citation needed]


The 2.0 L SR20VE has Nissan's Neo VVL variable valve timing with lift control. It produces 190 PS (139 kW) @7000 rpm and 144 ft·lbf (196 Nm) @6000 rpm and later (2001-2003) 205 PS (150 kW) @7200 rpm and 206 nm @5200 rpm. Used in:


The 2.0 L (1998 cc) SR20VET was the first turbocharged engine from Nissan with variable timing and lift control. It produces 280 PS (206 kW) @ 6400 rpm and 309 nm @ 3200 rpm.

It is used in the following vehicles:

See also

External links


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