Hyundai Beta engines
The Hyundai Beta range of gasoline engines was produced in South Korea from 1995 to 2011 and was installed on the group's mid-size models such as the Elantra, Carens, Coupe or Tussan. There are two generations of such units and a modification equipped with a CVVT phase regulator.
- First generation
- Second generation
First generation Hyundai Beta engines
In 1992, the Hyundai design bureau in Yongin began developing engines to replace the Mitsubishi Sirius family of power units, which the concern had been using since the 80s. The first line of three engines with a volume of 1.6 to 2.0 liters was introduced in 1995 along with the second generation Lantra, and a little later they began to be installed on a similar Coupe.
By design, these are typical units for that time with distributed fuel injection, an in-line cast-iron cylinder block, an aluminum 16-valve cylinder head with hydraulic compensators and a combined timing drive from a conventional belt and a short chain between the camshafts. Compared to the Sirius motors, the company managed to get rid of the balance shaft block.
The first line of internal combustion engines under the EURO 2 economy standards included three power units of different sizes:
| G4GR (116 hp / 146 Nm) | Hyundai Lantra 2(RD) |
| G4GM (128 hp / 165 Nm) | Hyundai Lantra 2(RD) |
| G4GF (139 hp / 182 Nm) | Hyundai Coupe 1 (RD) |
Second generation Hyundai Beta engines
In 2000, Beta II engines appeared on the third generation Elantra under EURO 3 economy standards. The engines received a number of changes: the cylinder block was strengthened, hydraulic lifters were abandoned, the idle speed was reduced from 850 to 700 rpm (800 rpm when the air conditioner was turned on), DBP appeared instead of the DMRV, the crankshaft got eight counterweights instead of four, the steel oil pan was replaced with aluminum, and the rubber mounts of the internal combustion engine were hydraulic.
In 2003, to support EURO 4, the 2.0-liter engine was equipped with a CVVT type phase regulator, which made it possible to adjust the valve timing of the intake camshaft by 40 ° at once. Technologies were shared by Daimler-Chrysler as part of the Global Engine Manufacturing Alliance.
The second line of internal combustion engines under the EURO 3 eco-norms included two power units of different volume:
| G4GB (123 hp / 162 Nm) | Hyundai Matrix 1 (FC) |
| G4GC (139 hp / 182 Nm) | Hyundai Elantra 3 (XD) |
The third line of internal combustion engines under the EURO 4 economy standards included only a 2.0-liter power unit:
| G4GC (142 hp / 184 Nm) | Hyundai Tucson 1 (JM) |
