GM Family Z engine

Family Z engine
Overview
Manufacturer	General Motors
Combustion chamber
Configuration	I4
Displacement	1,998 cc (121.9 cu in) 2,231 cc (136.1 cu in)
Cylinder bore	86 mm (3.4 in)
Piston stroke	86 mm (3.4 in) 96 mm (3.8 in)
Cylinder block alloy	Cast iron
Cylinder head alloy	Aluminum
Valvetrain	DOHC
Compression ratio	16.3:1 16.5:1
Combustion
Fuel system	Direct injection
Fuel type	Diesel
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	96–135 kW (129–181 hp)
Torque output	315–400 N·m (232–295 lb·ft)
Chronology
Predecessor	VM Motori RA 420

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.

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, maximum in-cylinder pressure is 180 bar, 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

Engine	Power	Torque	Years
2.2 L (2,231 cc) VCDi I4 (t/c)	120 kW (163 PS; 161 hp) @ 3800 rpm	350 N·m (258 lb·ft) @ 3800 rpm	2011– (Chevrolet) 2010- (Opel)
2.2 L (2,231 cc) VCDi I4 (t/c)	135 kW (184 PS; 181 hp) @ 3800 rpm	400 N·m (295 lb·ft) @ 2000 rpm	2011– (Chevrolet) 2010- (Opel)

Chevrolet Cruze

Engine	Power	Torque	Years
2.0 L (1,998 cc) VCDi I4 (t/c)	120 kW (163 PS; 161 hp) @ 3800 rpm	360 N·m (266 lb·ft) @ 1750-2750 rpm	2011–

Chevrolet Malibu

Engine	Power	Torque	Years
2.0 L (1,998 cc) VCDi I4 (t/c)	120 kW (163 PS; 161 hp) @ 4000 rpm	350 N·m (258 lb·ft) @ 1750 rpm	2012–

Chevrolet Orlando

Engine	Power	Torque	Years
2.0 L (1,998 cc) VCDi I4 (t/c)	120 kW (163 PS; 161 hp) @ 3800 rpm	350 N·m (258 lb·ft) @ 2000 rpm	2012–
2.0 L (1,998 cc) VCDi I4 (t/c)	96 kW (131 PS; 129 hp) @ 3800 rpm	315 N·m (232 lb·ft) @ 2000 rpm	2012–

References

↑ http://media.gm.com/media/us/en/gm/news.detail.html/content/Pages/news/in/en/2012/Jun/0627_General_Motors_India_Launches_All_New_Chevrolet_Cruze.html

External links

http://gmpowertrain.com

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