PSA XUD engine

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PSA XUD engine
XUD9 in a Citroën BX TRD
Overview
Manufacturer	PSA
Production	1982–2001
Layout
Configuration	Inline-4
Displacement	1.8 L (1,769 cc) 1.9 L (1,905 cc) 2.1 L (2,088 cc) 2.1 L (2,138 cc)
Cylinder bore	80 mm (3.15 in) 83 mm (3.27 in) 85 mm (3.35 in) 86 mm (3.39 in)
Piston stroke	88 mm (3.46 in) 92 mm (3.62 in)
Valvetrain	SOHC 2 valves x cyl. or 3 valves x cyl.
Combustion
Turbocharger	With intercooler (some versions)
Fuel system	Indirect injection
Management	Lucas, Bosch
Fuel type	Diesel
Cooling system	Water-cooled
Output
Power output	60–110 PS (44–81 kW; 59–108 hp)
Dimensions
Dry weight	157 kg (346 lb)
Emissions
Emissions control systems	Catalytic converter

The PSA XUD is a diesel engine designed and built by PSA - Peugeot and Citroën. It is an Indirect injection (IDI) engine, that uses a version of the Ricardo Consulting Engineers Ricardo Comet V prechamber cylinder head design.^[1] The engine comes in 1.8 L (1,769 cc), 1.9 L (1,905 cc), and 2.1-liter displacements. The 2.1 has 12 valves, all displacements were built either naturally aspirated or turbocharged. The XUD was the predecessor to the HDI range of engines. Early HDi Engines were a PSA design, later 16-valve engines were jointly developed with Ford.