Nissan SR20DET

The SR20DET is part of the SR family of engines from Nissan.

It is a popular engine coming from 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 Garrett T25 turbo used on most SR20DET engines.

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.

Origins

The SR20DET was first produced in the U12 Nissan Bluebird 2000SSS Attesa in October 1989 [1], 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.

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. | S13/180SX/Bluebird/Pulsar ford | 1989–194 |- | Black | S13/180SX | 1994–1998 |- | Black | S14/S15 | 1994–2002 |- | Silver | Avenir/R'nessa | 1995–2001/1997-2001 |- |}

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)

S14 Black top - 94-98 Silvias - Variable Cam Timing aka VTC 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)

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 high impendance injectors were used and Intake manifold was redesigned

List of cars with the SR20DET

Model	Spec	Chassis	Years	Colour	Turbo	Market
Bluebird	2000SSS Attesa Limited	U12	1989 egg		T25g	Japan
	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
180SX	All	S13	91-93	Red top	T25g	Japan
	All (except G/Type S)	S13	94-97	Black top	T25g	Japan
Silvia	K's	S13	91-93	Red top	T25g	Japan
	K's	S14	94-99	Black top	T28 (VTC)	Japan
	Autech Version K's MF-T	S14	98-99	Black top	IHI VN14 (VTC)	Japan
	270R	S14	1994
	Spec-R	S15	99-02	Black top	T28 (VTC)	Japan
Avenir	GT Turbo Salut	W10	95,97	Silver top	T25g	Japan
	GT4	W11	98,00-01	Silver top	T25g	Japan
Liberty	GT4 Highway Star	M12	99-00			Japan
R'nessa	GT Turbo	N30	97-01	Silver top	T25BB	Japan
200SX		s14	93-99	Black top	(VTC)	Europe
Sunny	GTI-R	RNN14	90-94	Red top2	T28 (Quad TB)	Europe

Engine specification

• 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)

Comparison table

Car	Engine	Compression	Power	Torque	Turbo	Stock boost	Turbine	Compressor
'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	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	183 kW (245 hp) @ 6400 rpm	202 lb⋅ft (274 N⋅m) @ 4800 rpm	T-28BB	7psi	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

1991-1998 180SX

• Throttle Body Bore: 60 mm
• Injector Flow: 370cc/min Injector

1995-1999 S14 Silvia

• Throttle Body Bore: 50 mm
• Injector Flow: 370cc/min Injector.

See also

• List of Nissan engines