Nissan QR engine

Nissan QR engine
A Nissan QR25DE Engine
Overview
ManufacturerNissan (Nissan Machinery)
Production2000–present
Layout
ConfigurationInline-four
Displacement2.0 L (1,998 cc)
2.5 L (2,488 cc)
Cylinder bore89 mm (3.5 in)
Piston stroke80.3 mm (3.16 in)
100 mm (3.94 in)
Cylinder block materialAluminum
Cylinder head materialAluminum
ValvetrainDOHC 4 valves x cyl. with VVT
Compression ratio9.1:1-10.5:1
Combustion
SuperchargerOn QR25DER only
Fuel systemPort Fuel Injection or Direct Fuel Injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output103–186 kW (140–253 PS; 138–250 hp)
Torque output200–330 N⋅m (148–243 lb⋅ft)
Chronology
PredecessorNissan SR engine
Nissan KA 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.