Nissan SR20 Engine Specifications
The Nissan SR20 engine is a popular inline-four engine that has gained a reputation for its performance and versatility. It has been widely used in various Nissan models, particularly in the 1980s and 1990s. Below are the detailed specifications of the SR20 engine.
| Specification | Details |
|---|---|
| Engine Type | Inline-4 |
| Displacement | 2.0 liters (SR20DE, SR20DET) |
| Bore x Stroke | 86 mm x 86 mm |
| Compression Ratio | 9.5:1 (SR20DE), 8.5:1 (SR20DET) |
| Power Output | 140 hp (SR20DE), 205 hp (SR20DET) |
| Torque | 133 lb-ft (SR20DE), 203 lb-ft (SR20DET) |
| Fuel System | Multi-Point Fuel Injection |
| Turbocharged | Available (SR20DET) |
| Valvetrain | DOHC, 16 valves |
| Ignition System | Distributor-less Ignition System (DIS) |
Engine Configuration
The SR20 engine comes in several configurations, with the most notable being the SR20DE and SR20DET. Each variant has its unique characteristics and applications.
SR20DE
– Naturally aspirated
– Dual overhead cam (DOHC) design
– Known for reliability and efficiency
– Commonly found in models like the Nissan 240SX and Nissan Sentra SE-R
SR20DET
– Turbocharged version of the SR20DE
– Higher power output and torque
– Popular in performance applications, including drifting and motorsports
– Found in models like the Nissan Silvia and Nissan 180SX
Engine Oil Specifications
Proper maintenance of the SR20 engine includes using the right engine oil. Below are the specifications for engine oil that should be used with the SR20 engine.
| Specification | Details |
|---|---|
| Oil Type | Synthetic or Conventional |
| Viscosity | 5W-30 or 10W-30 |
| Oil Capacity | 4.5 quarts (with filter) |
| Oil Filter | Nissan OEM or equivalent |
Service Intervals
Maintaining the SR20 engine is crucial for its longevity and performance. Below are the recommended service intervals for oil changes and other maintenance tasks.
Oil Change Intervals
– Every 3,000 to 5,000 miles for conventional oil
– Every 5,000 to 7,500 miles for synthetic oil
Other Maintenance Tasks
– Air Filter Replacement : Every 15,000 to 30,000 miles
– Fuel Filter Replacement : Every 30,000 miles
– Spark Plug Replacement : Every 30,000 to 60,000 miles
– Timing Belt Replacement : Every 60,000 to 100,000 miles (depending on model)
Conclusion
The Nissan SR20 engine is a robust and versatile powerplant that has stood the test of time. Its various configurations cater to a wide range of applications, from daily driving to high-performance motorsports. By adhering to the recommended oil specifications and service intervals, owners can ensure their SR20 engines remain in peak condition for years to come. Whether you are a car enthusiast or a casual driver, understanding the specifications and maintenance requirements of the SR20 engine is essential for maximizing its performance and reliability.
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