GM Family Z engine

Family Z is a turbocharged common rail diesel engine produced by General Motors Korea since 2010. It replaced VM Motori RA 420 diesel engine in a number of GM applications, such as the diesel versions of vehicles sold as Chevrolet made for North America, Daewoo made for Korea, Opel made for Europe and Holden made for Australia.

Family Z engine
Overview
ManufacturerGeneral Motors
Production2010-2015
Layout
ConfigurationInline-4
Displacement
  • 2.0 L; 121.9 cu in (1,998 cc)
  • 2.2 L; 136.1 cu in (2,231 cc)
Cylinder bore86 mm (3.39 in)
Piston stroke
  • 86 mm (3.39 in)
  • 96 mm (3.78 in)
Cylinder block materialCast iron
Cylinder head materialAluminum
ValvetrainDOHC
Compression ratio16.3:1, 16.5:1
Combustion
TurbochargerVariable-geometry
Fuel systemCommon rail Direct injection
Fuel typeDiesel
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output96–135 kW (131–184 PS; 129–181 hp)
Torque output315–400 N⋅m (232–295 lb⋅ft)
Chronology
PredecessorVM Motori RA 420
SuccessorGM Family B engine

The engine features chain driven DOHC valvetrain with hydraulic tensioners, twin balance shafts in the oil pump and electronically controlled variable-geometry turbocharger; the common rail system operates at pressures of up to 1,800 bar (26,000 psi), maximum in-cylinder pressure is 180 bar (2,600 psi), improving on power and torque. Compression ratio is 16.5:1.

For 2012, compression ration is reduced to 16.3:1, and a new intake port increases air flow and swirl control, improving nitrogen oxide (NOx) emissions and performance.[1]

Chevrolet Captiva/Opel Antara
Displacement Power Torque Code/RPO Years
2.0 L (1,998 cc) VCDi 120 kW (163 PS; 161 hp) at 3800 rpm 400 N⋅m (295 lb⋅ft) at 2000 rpm Z20D1, LNP 2011–2015 (Chevrolet)
2010-2013 (Opel)
2.2 L (2,231 cc) VCDi 120 kW (163 PS; 161 hp) at 3800 rpm
135 kW (184 PS; 181 hp) at 3800 rpm		 A22DM, LNQ/LNR
A22DMH, LNQ/LNS

Chevrolet Cruze
Displacement Power Torque Years
2.0 L (1,998 cc) VCDi 120 kW (163 PS; 161 hp) @ 3800 rpm 360 N⋅m (266 lb⋅ft) @ 1750-2750 rpm 2011–2015

Chevrolet Malibu
Displacement Power Torque Years
2.0 L (1,998 cc) VCDi 120 kW (163 PS; 161 hp) @ 4000 rpm 350 N⋅m (258 lb⋅ft) @ 1750 rpm 2012–2015

Chevrolet Orlando
Displacement Power Torque Years
2.0 L (1,998 cc) VCDi 120 kW (163 PS; 161 hp) @ 3800 rpm 350 N⋅m (258 lb⋅ft) @ 2000 rpm 2012–2015
96 kW (131 PS; 129 hp) @ 3800 rpm 315 N⋅m (232 lb⋅ft) @ 2000 rpm

See also

References
  1. "General Motors India Launches All-New Chevrolet Cruze". Media.gm.com. Retrieved 24 May 2018.


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