It is a popular inline four-cylinder engine fitted into a variety of cars, generally the Nissan Silvia and 180SX. It also came in the Pulsar GTI-R, Nissan NX Coupe and the Nissan Bluebird. This engine replaced the CA18DE and CA18DET that originally powered the Silvia and 180SX. The CA18 was deemed too expensive to produce and no longer met Japanese emission standards, so it was replaced by the SR20. The SR, just like the out-going CA, was a turbocharged intercooled engine in top form. Nissan also produced a cheaper naturally aspirated version called the SR20DE. In the US and Canada, the Silvia and 180SX are both under the 240SX banner. USDM and Canada 240SX's come stock with the SOHC KA24E for earlier models, or the DOHC KA24DE for later models. Both are naturally aspirated engines producing 140 hp (100 kW) and 155 hp (116 kW) respectively. SR20DET engine swaps are becoming more commonplace due to the forced induction aftermarket additions available for the SR20DET. Many shops specialize only in SR20DET swaps.
The breakdown of the engine code is as follows:
- SR - Engine Code Name
- 20 - 2.0 Liter Displacement
- D - Dual Overhead Camshaft
- E - Electronic Fuel Injection
- T - Turbocharged
- The Lack of the letter "D" on some of the engine identifications indicates a SOHC cylinder head.
The SR20DET was first produced in the Nissan Bluebird 2000SSS in transverse form.
However, the RWD Nissan Silvia and Nissan 180SX produced in 1991 were built with a longitudinally aligned SR20DET, in which the "T" stands for turbo. Some of the 180SX's were released with the SR20DET while others had the naturally aspirated SR20DE.
S13 Black top - Came from 180sx's post 94 (Garrett T25G turbo)
S13 Red top - Came from S13 Silvia and 180sx pre 94 (Garrett T25G turbo) 370cc injectors were used.
S14 Black top - 91–98 Silvias - Variable Cam Timing or VCT was introduced on the intake cam (Garrett T28 journal bearing turbo for Australian and European markets and Garrett T28 Ball Bearing turbo for the Japanese market) 370cc injectors were used.
S15 Black top - 99–02 Silvias. Same VCT as above, 6-speed manual transmission (Garrett Journal Bearing T28 for Europe and Australia and Ball Bearing T28 turbo for Japan)
480cc injectors were used and the intake manifold was redesigned 
While all factory manufactured SR20DET's featured a single turbine unit, some aftermarket tuners have engineered working twin-turbo configurations. One such kit produced by ENDLESS Japan featured two GReddy TD05-16g turbines in parallel. These were mounted on a custom exhaust manifold, custom downpipe and required many engine bay modifications to fit correctly. This twin-turbo setup achieved its peak power between 5,500–6,000 rpm at 2.2 bar.
List of cars with the SR20DET
|Bluebird||2000SSS Attesa Limited||U12||1989||T25g||Japan|
|2000SSS Attesa Limited||U13||91–93||Red top||T25g||Japan|
|2000SSS Attesa Limited||U13||94–95||Black top||T25g||Japan|
|All (except G/Type S)||S13||94–97||Black top||T25g||Japan|
|K's||S14||94–99||Black top||T28 (VTC), BB if JDM||Japan|
|Autech Version K's MF-T||S14||98–99||Black top||IHI VN14 (VTC)||Japan|
|Spec-R||S15||99–02||Black top||T28BB (VTC)||Japan|
|Avenir||GT Turbo Salut||W10||95,97||Silver top||T25g||Japan|
|Liberty||GT4 Highway Star||M12||99–00||Japan|
|R'nessa||GT Turbo||N30||97–01||Silver top||T25BB||Japan|
- DOHC 4 valves per cylinder, Chain driven cam sprockets
- Bore X Stroke of 86 mm (3.39 in) X 86 mm (3.39 in)
- Displacement of 1,998 cc (2.0 L; 121.9 cu in)
|'89 U12 Bluebird Ltd||Redtop||8.5:1||150 kW (201 hp) @ 6000 rpm||202 lb⋅ft (274 N⋅m) @ 4000 rpm||T-25g||7psi|
|'91–'95 U13 Bluebird Ltd||Redtop||8.5:1||154 kW (206 hp) @ 6000 rpm||202 lb⋅ft (274 N⋅m) @ 4000 rpm||T-25G||7psi|
|'95–'97 W10 Avenir Salut||Silvertop||8.5:1||154 kW (206 hp) @ 6000 rpm||202 lb⋅ft (274 N⋅m) @ 4000 rpm||T-25G||7psi|
|'97–'01 W11 Avenir GT4||Silvertop||8.5:1||169 kW (227 hp) @ 6000 rpm||203 lb⋅ft (275 N⋅m) @ 3600 rpm||T-25BB||9psi|
|'90–'94 RNN14 Pulsar GTI-R||Redtop||8.3:1||169 kW (227 hp) @ 6400 rpm||210 lb⋅ft (280 N⋅m) @ 4800 rpm||T-28||10.6psi||79 Trim 53 mm (2.1 in) (Inconel), .86 A/R housing||60 trim 60 mm BCI-1 in T-3 housing|
|'90–'95 EGNN14 Sunny GTI-R||Redtop||8.3:1||164 kW (220 hp) @ 6400 rpm||196 lb⋅ft (266 N⋅m) @ 4800 rpm||T-28||10.6psi||79 Trim 53 mm (2.1 in) (Inconel), .86 A/R housing||60 trim 60 mm BCI-1 in T-3 housing|
|'91–'93 S13 Silvia, 180sx||Redtop||8.5:1||151 kW (205 hp) @ 6000 rpm||203 lb⋅ft (275 N⋅m) @ 4000 rpm||T-25G||7psi||62 trim 53.8 mm (2.1 in), .80 A/R housing||60 trim 56mm BCI-1|
|'94–'98 S13 180sx||Blacktop||8.5:1||151 kW (205 hp) @ 6000 rpm||203 lb⋅ft (275 N⋅m) @ 4000 rpm||T-25G||7psi||62 trim 53.8 mm (2.1 in), .80 A/R housing||60 trim 56mm BCI-1|
|'95–'99 S14 Silvia, 200sx||Notchtop||8.5:1||162 kW (217 hp) @ 6000 rpm||205 lb⋅ft (278 N⋅m) @ 4800 rpm||T-28||7psi, 14psi BB||62 trim 53.8 mm (2.1 in), .64 A/R housing, BB if JDM||60 trim 60 mm BCI-1 in T-04B housing|
|'99–02 S15 Silvia||Notchtop||8.5:1||184 kW (247 hp) @ 6400 rpm||203 lb⋅ft (275 N⋅m) @ 4800 rpm||T-28BB||7psi stock||62 trim 53.8 mm (2.1 in) (Inconel), .64 A/R housing, cast divider wall between turbine discharge and wastegate, ball bearing center section||60 trim 60 mm BCI-1 in T-04B housing|
1990–1994 RNN14 Pulsar GTI-R
- Compressor Flow: 33 lb/MIN
- Throttle Body: Quad
- Injector Flow: 440cc/min
- Ignition Timing: 20º BTDC
- Throttle Body Bore: 60 mm
- Injector Flow: 370cc/min
1995–1999 S14 Silvia
- Throttle Body Bore: 50 mm
- Injector Flow: 370cc/min
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