Hyundai Gamma engine

Gamma engine
Overview
Manufacturer	Hyundai Motor Company
Combustion chamber
Displacement	1.4L & 1.6L
Cylinder block alloy	Aluminium
Cylinder head alloy	Aluminium
Valvetrain	DOHC 16V
Compression ratio	10.5:1 MPI 11.0:1 GDI 12.0:1 LPI 9.5:1 T-GDI
Combustion
Fuel system	GDI or MPI
Fuel type	Unleaded fuel
Oil system	Pressure feed
Cooling system	Watercooled
Output
Power output	1.4L 108hp @ 6300rpm 1.6L 122hp @ 6000rpm 1.6L 128hp @ 6000rpm 1.6L 138hp @ 6300rpm
Torque output	1.4L 101 lb·ft @ 5000rpm 1.6L 115 lb·ft @ 4200rpm 1.6L 116 lb·ft @ 4850rpm 1.6L 123 lb·ft @ 4850rpm

The Hyundai Gamma engine was introduced in the 2010 Hyundai Accent concept car to replace the existing Hyundai Alpha engine in the Hyundai Accent and Kia Rio. There are 1.4L and 1.6L versions of this engine.

1.4L

The G4FA is a 1.4 L (1396 cc) engine. Bore is 77.0 mm and stroke is 75 mm. It has MPI and makes 109 hp (81 kW; 111 PS) at 6,300 rpm and 101 lb·ft (137 N·m) of torque at 4,200 rpm. Power is dropped to 99 hp (74 kW; 100 PS) at 5,500 rpm and 100 lb·ft (136 N·m) of torque at 4,200 rpm in the Hyundai i20.

1.6L

Petrol engines
Model	Engine code	Displacement (bore x stroke)	Power@rpm, Torque@rpm	Compression ratio (:1)
1.6 Gamma GDi	G4FD	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	140 PS (103 kW; 138 hp)@6300, 17.0 kg·m (167 N·m; 123 lbf·ft)@4850	11.0
1.6 Gamma II MPi	G4FC	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	130 PS (96 kW; 128 hp)@6000, 16.0 kg·m (157 N·m; 116 lbf·ft)@4850	10.5
1.6 Gamma II MPi	G4FG	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	132 PS (97 kW; 130 hp)@6300, 16.0 kg·m (157 N·m; 116 lbf·ft)@4850	10.5
1.6 Gamma T-GDI	G4FJ	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	186 PS (137 kW; 183 hp)@5500, 27.0 kg·m (265 N·m; 195 lbf·ft)@1500-4500	9.5
1.6 Gamma T-GDI	G4FJ	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	204 PS (150 kW; 201 hp)@6000, 27.0 kg·m (265 N·m; 195 lbf·ft)@1750-4500	9.5

Liquefied Petroleum Gas engines
Model	Engine code	Displacement (bore x stroke)	Power@rpm, Torque@rpm	Compression ratio (:1)
1.6 Gamma LPI	L4FC	1,591 cc (97.1 cu in) (77.0 mm × 85.4 mm (3.03 in × 3.36 in))	?@?, ?@?	?
		electric motor	20 PS (15 kW; 20 hp)@?, 12.7 kg·m (125 N·m; 92 lbf·ft)@?	na
		combined	114 PS (84 kW; 112 hp)@6000, 15.1 kg·m (148 N·m; 109 lbf·ft)@4500	na

1.6 Gamma GDi (G4FD)

The 1.6 Gamma GDi engine Gasoline direct injection, and Dual-Continuous Variable Valve Timing.^[1] Power output to 138 hp (103 kW; 140 PS) at 6300rpm and 123 lb·ft (167 N·m) at 4850rpm.^[2]

Applications:

Hyundai Accent (2010-)

1.6 Gamma MPi (G4FC)

The Gamma MPI version makes 122 hp (91 kW; 124 PS) at 6000 rpm and 115 lb·ft (156 N·m) of torque at 4,200 rpm.

The Gamma II MPI version with dual CVVT (continuous variable valve timing) makes 128 hp (95 kW; 130 PS) at 6000 rpm with 116 lb·ft (157 N·m) of torque at 4,850 rpm.

1.6 Gamma MPi (G4FG)

The Gamma II MPI version with dual CVVT (continuous variable valve timing) makes 132 hp (98 kW; 134 PS) at 6300 rpm with 116 lb·ft (157 N·m) of torque at 4,850 rpm.

1.6 Gamma T-GDI (G4FJ)

Exhaust and twin-scroll turbocharger of the T-GDI version

It is a version of 1.6 Gamma GDi with twin-scroll turbocharger, air guided intercooler, direct fuel injection system and dual CVVT.

The engine was unveiled in the 11th Hyundai-Kia International Powertrain Conference.^[3]

1.6 Gamma LPI (L4FC)

It is a hybrid variant with liquefied petroleum gas engine and electric motor.

It was used in Kia Forte, Hyundai Avante LPI hybrid,^[4] Kia Forte LPi, Hyundai Avante LPi(Korea domestic only)

Usage

References

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