Nissan QR engine
The QR family of inline-four piston engines by Nissan were introduced in 2000 and range from 2.0 to 2.5 L (1,998 to 2,488 cc) in displacement. These motors are aluminum, dual overhead camshaft (DOHC), four-valve designs with variable valve timing and optional direct injection. The engine shares much of its architecture with the YD diesel engine.
| Nissan QR engine | |
|---|---|
A Nissan QR25DE Engine | |
| Overview | |
| Manufacturer | Nissan (Nissan Machinery) |
| Production | 2000–present |
| Layout | |
| Configuration | Inline-four |
| Displacement | 2.0–2.5 L (1,998–2,488 cc) |
| Cylinder bore | 89 mm (3.5 in) |
| Piston stroke | 80.3 mm (3.16 in) 100 mm (3.94 in) |
| Cylinder block material | Aluminum |
| Cylinder head material | Aluminum |
| Valvetrain | DOHC 4 valves x cyl. with VVT |
| Compression ratio | 9.1:1-10.5:1 |
| Combustion | |
| Supercharger | On QR25DER only |
| Fuel system | Port Fuel Injection or Direct Fuel Injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 103–186 kW (140–253 PS; 138–250 hp) |
| Torque output | 200–330 N⋅m (148–243 lb⋅ft) |
| Chronology | |
| Predecessor | Nissan SR engine Nissan KA engine |
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