QRD25DE 2.5L Engine Teana, Sentra

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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)
Block material Aluminum
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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