Hyundai Epsilon engine

Hyundai's Epsilon engine is a category of small inline gasoline automobile engines.

The G3HA and G3HG engines are a 3-cylinder, 9 valves, SOHC, 0.8 L (814 cc) version with a 67 mm × 77 mm (2.64 in × 3.03 in) bore and stroke. Output is 56 PS (41 kW; 55 hp) at 5,500 rpm and 7.6 kg⋅m (75 N⋅m; 55 lbf⋅ft) at 4,000 rpm. This engine was used in Hyundai's small hatchback Hyundai Eon. As the name suggests, this engine is a G4HG engine with one fewer cylinders mainly designed for high fuel efficiency.

The G4HA is a 4-cylinder, 0.8 L (798 cc) version with a 63 mm × 64 mm (2.48 in × 2.52 in) bore and stroke. Output is 54 PS (40 kW; 53 hp) at 6,000 rpm and 7.4 kg⋅m (73 N⋅m; 54 lbf⋅ft) at 4,000 rpm.

The L4HA is a 4-cylinder, 0.8 L (798 cc) LPG version with a 63 mm × 64 mm (2.48 in × 2.52 in) bore and stroke. Output is 48 PS (35 kW; 47 hp) at 6,000 rpm and 6.6 kg⋅m (65 N⋅m; 48 lbf⋅ft) at 4,000 rpm.

The G4HA is a turbocharged 4-cylinder, 0.8 L (798 cc) version with a 63 mm × 64 mm (2.48 in × 2.52 in) bore and stroke. Output is 70 PS (51 kW; 69 hp) at 6,000 rpm and 10.5 kg⋅m (103 N⋅m; 76 lbf⋅ft) at 4,000 rpm.

The G4HC/G4HE is a 4-cylinder 3 valves per cylinder engine that displaces 1.0 L (999 cc) with a larger 66 mm × 73 mm (2.60 in × 2.87 in) bore and stroke.

The G4HC power is 54–58 PS (40–43 kW; 53–57 hp) at 5,700 rpm and 7.4–8.6 kg⋅m (73–84 N⋅m; 54–62 lbf⋅ft) at 3,000 rpm. This engine has been used in Hyundai's Hatchback Atos/Santro.

The G4HE power is 61–72 PS (45–53 kW; 60–71 hp) at 5,600–6,000 rpm and 8.8–9.2 kg⋅m (86–90 N⋅m; 64–67 lbf⋅ft) at 4,500 rpm. This engine has been used in the Kia Picanto.