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.
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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:
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;
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.
It is used in the following vehicles:
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:
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 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 |
The SR20DET was first produced in the U12 Nissan Bluebird 2000SSS Attesa in October 1989 [1]. From 1990 through to 1994 it was used in the Nissan Pulsar GTi-R (RNN14) however with a bigger T28 turbo. In both these cars the engine is aligned in a transverse fashion.
However the RWD Nissan Silvia and Nissan 180SX produced in 1991 were built with a longitudinally aligned SR20DET. Some of the 180SX's were released with the SR20DET while others had the naturally aspirated SR20DE.
The engine was used in the Nissan Avenir in 1995, the Nissan R'nessa in 1997 and the Nissan Liberty in 1999.
Out of all the Nissan models produced with the SR20DET, the Silvia was the longest running model to use it. The S14 and S15 use a bigger turbocharger than the S13 models.
The colors of the valve covers seem to be related to the year the engine was released.
| Color | Model | Years |
|---|---|---|
| Red | S13/180SX/Bluebird/Pulsar | 1989–1994 |
| Black | S13/180SX | 1994–1998 |
| Black | S14/S15 | 1994–2002 |
| Silver | Avenir/R'nessa | 1995–2001/1997-2001 |
It was available in the following vehicles:
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 ) Pulsar VZ-R N1, produced from 1997 to 1998. These cars were tuned by Autech Japan.
It made 200 PS (197 bhp)(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 Naturally aspirated engine. It was also the highest specific output of any naturally aspirated production piston engine of its time, until surpassed by the Honda F20C engine used in the S2000, which held the record until Ferrari released the 458 Italia in 2010.
It is highly unfair to compair the Nissan SR16VE N1 a standard 1.6L motor to the honda F20C engine which is a standard 2.0L.
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:
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