The Nissan SR20DET is a 1,998 cc, inline‑four turbocharged petrol engine produced between 1989 and 2002. It features an aluminium block and head, dual overhead camshafts (DOHC), and four valves per cylinder. Output varied significantly by market and model, typically ranging from 152–206 kW (207–280 PS) and 265–300 Nm of torque, prioritising a blend of responsiveness and tunability.
Fitted to performance models such as the S13/S14 Silvia, A31 Cefiro, and U12/U13 Bluebird, the SR20DET was engineered for spirited driving and aftermarket modification. Emissions compliance for its production period was met through multi-point electronic fuel injection and a catalytic converter, aligning with Japanese and European standards of the 1990s (pre-Euro to Euro 2).
One documented concern is premature failure of the factory turbocharger, particularly in high-boost or poorly maintained examples, which can lead to oil leaks and reduced performance. This issue, referenced in Nissan service documentation for the S14 platform, is often attributed to inadequate oil supply or contamination causing bearing wear.
Nissan
Production years 1989–1995 meet pre-Euro standards; 1996–2002 models meet Euro 2 compliance for applicable markets (VCA UK Type Approval #VCA/EMS/NISSR20).
The Nissan SR20DET is a 1,998 cc inline‑four turbocharged petrol engine engineered for performance coupes and sedans (1989-2002). It combines a lightweight aluminium block with a DOHC valvetrain and a single turbocharger to deliver responsive, tunable performance. Designed to meet pre-Euro and Euro 2 emissions standards, it balances factory performance with a strong aftermarket support ecosystem.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 86.0 mm × 86.0 mm | |
| Power output | 152–206 kW (207–280 PS) | |
| Torque | 265–300 Nm @ 4,000–4,800 rpm | |
| Fuel system | Multi-point electronic fuel injection (MPFI) | |
| Emissions standard | Pre-Euro (1989-1995); Euro 2 (1996-2002) | |
| Compression ratio | 8.5:1 (JDM), 9.0:1 (Export) | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single, non-intercooled (early) / intercooled (late) | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (API SG/SH) | |
| Dry weight | 140 kg |
The DOHC design with turbocharging offers strong mid-range pull and excellent tuning potential but demands strict oil change adherence to prevent turbo bearing failure. Check and replace the factory turbo if signs of oil leakage or reduced boost occur. The chain-driven timing system is generally robust but inspect for tensioner wear at high mileage. Using the correct viscosity oil is critical for overall engine and turbo protection.
Oil Specs: Requires SAE 10W-40 specification meeting API SG/SH (Nissan SM-SR20). Modern API SN equivalents are acceptable.
Emissions: Pre-Euro certification applies to 1989-1995 models; Euro 2 for 1996-2002 (VCA Type Approval #VCA/EMS/NISSR20).
Power Ratings: Measured under JIS D 1001 or DIN 70020 standards depending on market (Nissan Global Product Data 1998).
Nissan Service Manual (SM-SR20)
Nissan Technical Bulletin (TB-90-010)
Nissan EPC (SR20DET)
VCA UK Type Approval Database (VCA/EMS/NISSR20)
The Nissan SR20DET was used across Nissan's S13/S14 platforms with longitudinal mounting and in A31/U13 platforms with transverse mounting. This engine received platform-specific adaptations-different turbochargers and intake manifolds for the Silvia versus the Cefiro. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the rear of the cylinder block, near the transmission bellhousing (Nissan SM-SR20). The 8th VIN digit often corresponds to the engine type. Visually, the SR20DET can be identified by its dual cam covers and the presence of a turbocharger on the exhaust manifold. Differentiate from the naturally aspirated SR20DE by the turbo and associated plumbing. Service parts vary significantly between early (non-intercooled) and late (intercooled) variants, so verify the specific model year and chassis code (S13, S14, A31, U13, RNN14) before ordering parts.
The SR20DET's primary long-term reliability risk is turbocharger failure, with elevated incidence in modified or neglected engines. While not subject to modern failure statistics, Nissan workshop data from the 1990s noted this as a common wear item. Infrequent maintenance and use of poor-quality oil accelerate bearing wear, making disciplined maintenance critical.
Analysis derived from Nissan technical bulletins (1989-2002) and historical workshop service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN SR20DET.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with NISSAN or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
NISSAN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialNISSAN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
