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 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 U12 Nissan Bluebird 2000SSS Attesa in October 1989 , possibly as Nissan's rally project. From 1990 through to 1994 it was used in the infamous Nissan Pulsar GTi-R (N14) 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 then went on to be used in the Nissan Avenir in 1995, the Nissan R'nessa in 1997, Nissan Presage in 1998 and Nissan Liberty in 1999, although these models did not gain the cult status that the earlier produced models did.
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 high impendance injectors were used.
S14 Black top (Notchtop) - 94-98 Silvias - Variable Cam Timing aka 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 high impendance injectors were used.
S15 Black top (Notchtop) - 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 high impendance injectors were used and Intake manifold was redesigned 
List of cars with the SR20DET
|Bluebird||2000SSS Attesa Limited||U12||1989
|2000SSS Attesa Limited||U13||91-93||Red top||T25g||Japan|
|2000SSS Attesa Limited||U13||94-95||Black top||T25g||Japan|
|Pulsar||GTI-R||RNN14||90-94||Red top||T28 (Quad TB)||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|
|Sunny||GTI-R||EGNN14||90-94||Red top2||T28 (Quad TB)||Europe|
|Nissan Silvia||s15.5 spec.5|
- DOHC (Dual Over Head Cams), 16 Valves, Chain driven cam sprockets
- Bore x Stroke of 86 mm x 86 mm
- Displacement of 1998 cc (rounded to 2.0 liters)
|'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 N14 Pulsar GTi-R||Redtop||8.3:1||169 kW (227 hp) @ 6400 rpm (Euro: 164 kW (220 hp) @ 6400 rpm)||210 lb·ft (280 N·m) @ 4800 rpm (Euro: 196 lb·ft (266 N·m) @ 4800 rpm||T-28||7psi||79 Trim 53 mm (2.1 in) (Inconel), .86 A/R housing||60 trim 60 mm BCI-1 in standard T-3 housing|
|'91-'93 S13 Silvia, 180sx||Redtop||8.5:1||151 kW (202 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 (202 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||Blacktop||8.5:1||162 kW (217 hp) @ 6000 rpm||203 lb·ft (275 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||Blacktop||8.5:1||190 kW (250 hp) @ 6400 rpm||220 lb·ft (300 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 N14 Pulsar GTi-R
- Compressor Flow: 33 lb/MIN
- Injector Flow: 440cc/min Injector
- LSD front and rear in RB Model, LSD Rear only in RA
- Quad Throttle Body
- Throttle Body Bore: 60 mm
- Injector Flow: 370cc/min Injector
1995-1999 S14 Silvia
- Throttle Body Bore: 50 mm
- Injector Flow: 370cc/min Injector.
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