Hyundai Beta engine
 Beta engine |
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| Overview | |
| Manufacturer | Hyundai Motor Company |
| Production | 1995-present |
| Combustion chamber | |
| Configuration | inline engine |
| Displacement | 1.6L (1599 cc) 1.8L (1795 cc) 2.0L (1975 cc) |
| Cylinder bore | 77.4 mm (3.047 in) (1.6L) 82.0 mm (3.228 in) (1.8/2.0L) |
| Piston stroke | 85.0 mm (3.346 in) (1.6/1.8L) 93.5 mm (3.681 in) (2.0L) |
| Cylinder block alloy | Aluminum |
| Cylinder head alloy | Aluminum |
| Valvetrain | DOHC |
| Compression ratio | 9.2 (1.6L & 1.8L) |
| Combustion | |
| Fuel type | petrol gasoline |
| Output | |
| Power output | 116 hp (85 kW) @ 6000 rpm (1.6L) 130 hp (96 kW) @ 6000 rpm (1.8L) 140 hp (102 kW) @ 6000 rpm (2.0L) |
| Torque output | 106 lb·ft (143 Nm) @ 4900 rpm (1.6L) 126 ft.lb (170 Nm) @ 4200 rpm (1.8L) 133 ft.lb (180 Nm) @ 4800 rpm (2.0L) |
| Dimensions | |
| Dry weight | 136 kg (1.6L) 135,6 kg (1.8L) 144 kg (2.0L) |
| Chronology | |
| Successor | Theta |
The Hyundai Beta engine is a 1.6 L to 2.0 L straight-4 built in Ulsan, South Korea. All Beta engines are DOHC designs.
The G4GR (also called the 1.6 D) is a 1.6 L 1,599 cc (97.6 cu in) 4 cylinder DOHC engine. Output is 116 hp (85 kW) at 6000 rpm and 106 lb·ft (143 Nm) at 4900 rpm. The engine's bore is 77.4 mm (3.047 in) and its stroke is 85.0 mm (3.346 in). Its horsepower net is 66 kW / 90 PS / 89 hp (ECE) and a torque net of 126 Nm / 93 ft-lb
The G4GM (also called the 1.8 D) is a 1.8 L 1,795 cc (109.5 cu in) DOHC engine with a 82.0 mm (3.228 in) and the same 85.0 mm (3.346 in) stroke as in the smaller 1.6. Output is up to 130 hp (96 kW) at 6000 rpm and 126 ft.lb of torque (170 Nm) at 4200 rpm. Its first appearance was in the 1996 Lantra.
The G4GF (also called the 2.0 D) is the 2.0L (1975cc) version, having debuted in 1997 as the uplevel engine for the original Hyundai Tiburon. It shares the 82 mm bore of the 1.8 but is stroked to 93.5 mm. It has a cast iron engine block and aluminum DOHC cylinder head. It uses MFI fuel injection, has four valves per cylinder and features powdered cast steel connecting rods. OPA Output is 140 hp (102 kW) at 6000 rpm and 133 pound force-feet (180 N·m)
During 2001-2002, the new Beta II (G4GC) engine made its debut in models such as the XD Elantra and GK Tiburon. Output is 138 hp (102 kW) at 6000 rpm with 136 pound force-feet (184 N·m) of torque (184 N·m) at 4500 rpm. It has a cast iron engine block and aluminum DOHC cylinder heads. The latest version of the 2.0L Beta engine (G4GC) features CVVT, which exists only on the intake side, a first for Hyundai/Kia. The following changes were noted.
In 2008 the Beta II was modified to produce 142 horsepower (106 kW) and 137 lb·ft (186 N·m) of torque.
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