Nissan SR engine


The SR engine is a series of straight-four, four-stroke gasoline engines manufactured by Nissan from 1987 to 2007. It was part of a new engine family name PLASMA.
The SR engine family uses a DOHC 4-valve design, with variable valve timing on select models, and is an all-aluminium design with an aluminium head and block with steel sleeves. All SR engines are chain-driven rather than belt-driven, unlike previous Nissan four-cylinder engines.
The SR engine was designed by Nissan as a replacement of the earlier CA series of engines, which used cast iron blocks and timing belts, and was later replaced by the QG, QR and MR series of engines. It was used in many small to medium Nissan vehicles, including various high-performance turbocharged variants.
Power outputs are shown under JIS Net PS or ECE Net kilowatts unless otherwise indicated.

SR16VE

The SR16VE has Nissan's Neo VVL variable valve timing with lift control. It produces at 7800 rpm and at 7200 rpm. Redline is at 8300 rpm.
Bore and stroke is with a 11.0:1 compression ratio.
This engine was never used on the USDM counterpart of the B14 Lucino, the B14 Nissan 200SX, as it uses the 1.6 L GA16DE and 2.0 L SR20DE engines instead.
It is used in the following vehicles:
This version was used in the limited-production Pulsar VZ-R N1, produced from 1997 to 1998. These cars were tuned by Autech Japan. It made at 7800 rpm and at 7600 rpm. Redline of the N1 Version 2 is at 8600 rpm. This is also claimed to be the most powerful production 1.6 L naturally aspirated engine.

SR18Di

The SR18Di is a DOHC engine. It produces at 6500 rpm and at 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 of the P10/11 Primera, the Infiniti G20, as it uses the 2.0 L SR20DE engine instead.
It is used in the following vehicles:
The SR18DE is a DOHC engine. It produces at 6000 rpm and at 4800 rpm. This engine came with Multi Point Fuel Injection System ECCS. The SR18DE crankshaft was produced with four fewer counterweights than the SR20DE variants, which have eight, for lighter weight and better fuel efficiency. These lightweight crankshafts were also homologated for use in the Japanese N2 Silvia racing program and later used in the [|SR20VE] engine.
This engine was never used on the USDM counterpart of the P10/11 Primera, the Infiniti G20, as it uses the 2.0 L SR20DE engine instead.
It is used in the following vehicles:
The SR20Di is a DOHC engine. It produces. Bore and stroke are. Similar to the 1.8 liter version except for bigger displacement with a throttle body injection system.
This engine was never used on the USDM counterpart of the P10/11 Primera, the Infiniti G20, as it uses the 2.0 L SR20DE engine instead.
It is used in the following vehicles:
  • 1991–1994.6 Nissan Primera

    SR20DE

The SR20DE is a DOHC engine. It was used in over 15 Nissan models, first appearing in the U12 Bluebird in October 1989. It was gradually phased out over time with the introduction of the low-emissions QR engine family in 1999, until production stopped in 2002. It carried nominal power ratings between from the factory, although there are some Autech models with horsepower ratings of between 175 and 200 hp depending on the chassis and degrees of tuning.
The breakdown of the engine code is as follows:
This engine has the following specifications :
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:
Bore x Stroke:
Bore Pitch:
Block Height:
Compression ratio:10.0:1
Crankshaft journal diameter:
Crankpin diameter:
Con rod length:
Valve diameters:Intake:, Exhaust:
Dimensions: x x
Power: at 6400 rpm
Maximum torque: at 4800 rpm

It is used in the following vehicles:

SR20DET

The SR20DET is a DOHC engine. It is a turbocharged version of the SR20DE, with power outputs ranging from at 6000 rpm to at 6400 rpm, and torque outputs ranging from at 4800 rpm to at 4800 rpm. It was first used in the U12 Bluebird SSS ATTESA Limited from October 1989, and expanded to several cars from 1989 through 2002. The Silvia was the longest-running and most notable Nissan model to use the SR20DET, starting with the S13 series in 1991 and ending with the S15 series in 2002. This engine was replaced with the QR20DE engine in most applications.
It is used in the following vehicles:
The SR20VE has Nissan's Neo VVL variable valve timing with lift control. It produces at 7000 rpm and at 6000 rpm with a 10.3:1 compression ratio and later at 7200 rpm and at 5200 rpm with a 11:1 compression ratio.
This engine was never used on the USDM counterpart of the P11 Primera, the Infiniti G20, as it uses the 2.0 L SR20DE engine instead.
It is used in the following vehicles:
  • 1997-2000 P11 JDM Nissan Primera Te-V sedan or G-V wagon,
  • 2001-2003 P12 JDM Nissan Primera, 20V sedan or W20V Wagon,
  • 1997-2000 U14 JDM Nissan Bluebird SSS-Z sedan,
  • 1997-2000 Y11 JDM Nissan Wingroad ZV-S wagon,
  • 2002 ASL Garaiya sports car,

    SR20VET

The SR20VET was the first turbocharged engine from Nissan with variable valve lift, produced exclusively for the Japanese market. It produces at 6400 rpm and at 3200 rpm, with 9.0:1 compression ratio.
It is used in the following vehicles:
ManufacturerTypeDuration Lift Engine Notes
NissanIntake2328.66Stock low-port SR20DE
NissanIntake24810.00Stock high-port SR20DE
NissanExhaust2409.2Stock Pulsar GTi-R SR20DET
NissanIntake24010.0Stock Pulsar GTi-R SR20DET
NissanExhaust24810.0Stock Pulsar GTi-R SR20DET
NissanIntake23210.0Stock Roller Rocker SR20DE
NissanExhaust2409.2Stock Roller Rocker SR20DE