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The Nissan 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 Motors. It features an aluminum head and aluminum block with steel sleeves in selected models and features a DOHC 4-valve design, with variable valve timing on select models. 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.
Contents [hide]
1 SR18Di
2 SR18DE
3 SR20Di
4 SR20DE and SR20De
5 SR20DET
5.1 Origins
5.2 Valve cover colors
6 SR16VE
6.1 SR16VE N1
7 SR20VE
8 SR20VET
9 See also
10 References
11 External links
SR18Di[edit]

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 Point Fuel Injection system, it was installed on JDM cars and some UK versions. This model used some cast iron blocks and it was used on the P10 generation Nissan Primera, but due to the low overall power this engine option was dropped on the next generation.
This engine was never used on the USDM counterpart the Infiniti G20
It is used in the following vehicles:
1990-1993 Nissan Primera
Nissan Sunny
Nissan Bluebird U12
Nissan Avenir W10
SR18DE[edit]

The SR18DE is a 1.8 L (1838 cc) DOHC engine. It produces 125 PS (92 kW) @6000 rpm and 156 nm @4800 rpm. This engine came with Multi Point Fuel Injection System ECCS (Electronic Concentrated Control System).
It was used in the following vehicles;
1991-1993 Nissan Primera
Nissan Sunny
Nissan Avenir W10
Nissan Rasheen
1989-1998 Nissan Bluebird U14 119 PS (89 kW) Factory detuning and refining of fuel injection.
1990-1993 Nissan Pulsar GTi B13 and N14, 140 PS (102 kW) @6400 rpm and 167 N·m (123 ft·lbf) @4800 rpm
1991-1999 Nissan Pulsar GTi N15, 140 PS (102 kW) @6400 rpm and 167 N·m (123 ft·lbf)

References: SR18DE[edit] The SR18DE is a 1.8 L (1838 cc) DOHC engine 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 with a throttle body injection system. E - Multi-port Fuel Injection This engine has the following specifications (SAE, 1991) 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 Prairie Joy 1995–1997 Presea 1990–1993, 1995, 1997–1998 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