Editing Nissan QR engine (section)

{{Insufficient inline citations|date=March 2019}}{{Infobox automobile engine
| name = Nissan QR engine
| image = Nissan QR25DE Engine.JPG
| caption = A Nissan QR25DE Engine
| manufacturer = [[Nissan]] ([[Nissan Machinery]])
| production = 2000&ndash;present
| configuration = [[Inline-four engine|Inline-four]]
| valvetrain = [[DOHC]] [[Multi-valve#Four valves|4 valves x cyl.]] with [[Variable valve timing|VVT]]
| block = Aluminum
| head = Aluminum
| predecessor = [[Nissan SR engine]]<br>[[Nissan KA engine]]
| fueltype = [[Petrol engine|Gasoline]]
| fuelsystem = [[Fuel Injection|Port Fuel Injection]] or [[Gasoline Direct Injection|Direct Fuel Injection]]
| coolingsystem = [[Radiator (engine cooling)|Water-cooled]]
| displacement = {{cvt|1998|cc|L|1|disp=flip}}<br />{{cvt|2488|cc|L|1|disp=flip}}
| bore = {{convert|89|mm|abbr=on}}
| stroke = {{convert|80.3|mm|2|abbr=on}}<br/>{{convert|100|mm|2|abbr=on}}
| compression = 9.1:1-10.5:1
| power = {{cvt|140-253|PS|kW PS hp|0|order=out}}
| torque = {{cvt|200-330|Nm|lbft|0}}
| supercharger = On QR25DER only
}}

The '''QR''' family of [[Straight-four engine|inline-four]] [[piston engine]]s by Nissan were introduced in 2000 and range from {{convert|1998|to|2488|cc|L|1|abbr=on|disp=flip}} in displacement. These motors are aluminum, dual overhead camshaft ([[DOHC]]), four-valve designs with [[variable valve timing]] and optional [[fuel injection#Direct injection systems|direct injection]]. The engine shares much of its architecture with the [[Nissan YD engine|YD diesel engine]].