Hyundai Alpha engine

Hyundai's Alpha automobile engine was the first to be designed in Korea. It was a modern SOHC 3-valve straight-4 and was available in turbo and naturally aspirated versions. The first Alpha engine was introduced in 1993 in the Hyundai Scoupe and were available thru 2002. Alphas were produced in 1.3 L (1341 cc) and 1.5 L (1495 cc) versions, with a 1.6 L (1599 cc) Alpha II produced from 2005 until 2011 when it was replaced with the Hyundai Gamma engine.

1.3

The G4EH is a 1.3 L engine, with a bore and stroke of 71.5 mm and 83.5 mm, respectively. Output was 71 hp (53 kW) at 5500 rpm and 81 ft·lbf (110 N·m) at 3000 rpm for the carbureted 1.3 CON version and 83 hp (62 kW) at 5500 rpm and 86 ft·lbf (117 N·m) at 3000 rpm for the SOHC 1.3 S.

1.5

The G4EK is a 1.5 L engine, with a bore and stroke of 75.5 mm and 83.5 mm, respectively. The SOHC 12 valves 1.5 S generated a respectable but not notable 92 hp (69 kW) at 5500 rpm and 97 ft·lbf (132 N·m) at 4000 rpm, although some websites quote the torque rating as being 97 ft·lbf (132 N·m) at 2700 rpm. European version makes 90 hp (66 kW) at 5500 rpm and 129 (or 132) Nm at 2900 (or 3000) RPM.

With the addition of a DOHC cylinder head on the G4FK, the power output raised to...
Read More