The Hyundaiα-series is a multi-valve, four cylinder engine family comprising 1.3, 1.4, 1.5, and 1.6L naturally aspirated versions and a 1.5L turbocharged version. Introduced in 1992, this was Hyundai's first engine designed entirely in-house. Design objectives were to provide high performance and good fuel economy with excellent durability at a reasonable cost. The first α-series engine marketed was the α-1.5D. It was a single overhead camshaft, twelve valve, inline-four, petrol-based and naturally aspirated version. An α-series inline-four, dual overhead camshaft, four valve per cylinder version later developed from the α-1.5D. The α-series engine debuted in the 1992 Hyundai ScoupeAsia Korea and Europe market and later used in other Hyundai models. The α-series engine were initially produced in 1.3 L and 1.5 L, with only the 1.5 L offered in North America. A strengthened block, an eight-counterweight crankshaft, and hydraulic engine mounts were added in 2000 to reduce NVH. A 1.6 L version was introduced in 2001 and initially sold alongside earlier versions. The 1.3 L and 1.5 L were later dropped. The 1.6 L engine was further revised in 2005 with a 1.4 L version also available for certain markets. Known as the Alpha II it debuted in the Kia Rio JB. Notable features included a DOHC 16-valve cylinder head, graphite-coated pistons, a strengthened cylinder block, ribbed aluminum oil pan, coil-on-plug ignition, an enlarged throttle body, a revised PCM, simplified and shortened intake ducting, a revised intake manifold, and a returnless fuel system. These improvements further reduced NVH and emissions, with the 1.6 L version becoming ULEV-certified in all 50 U.S. states. In 2011 the Alpha engine was replaced with the Hyundai Gamma engine.
1.3
The G4EA/G4EH is a SOHC 12-valve 1.3 L engine, with a bore and stroke of 71.5 mm and 83.5 mm, respectively. Output was 71 hp at 5500 rpm and 81 lb·ft at 3000 rpm for the carburetedG4EA and 83 hp at 5500 rpm and 86 lb·ft at 3000 rpm for the G4EH with electronic fuel injection. The 1.3 L engine wasn't available in North America.
α-1.5D 12vG4EK
The α-1.5D 12v is an in-line four, single overhead camshaft, 12 valves ; spark-ignition 4-stroke engine. An α-1.5D-equipped vehicle's power output varies from the market it was sold. The naturally aspirated engine's advertised power and torque per market is listed below: Europe Market: 65 kW DIN with 132 Nm of torque
North America market: 68.5 kW / 92 hp / 93 PS SAE net and 132 Nm of torque.
Asia Korea Domestic Market: 75 kW of torque. The Hyundai α-1.5D 12v was equipped on the following vehicles listed below: 1992-1996 Hyundai S-Coupe phase-II coupe
1994-1997 Hyundai Accent 1st-gen. phase-I sedan and hatchback
1997-1999 Hyundai Accent 1st-gen. phase-II sedan and hatchback
α-1.5D 12v TurboG4EK Turbo
α-1.5D 16vG4FK
Hyundai Alpha-II series G4FK The Hyundai Alpha-II G4FK is a modified upgraded version of the 1.5i Alpha-I G4EK SOHC engine. The new 1495cc G4FK is now an in-line 4, spark-ignition 4-stroke, dual overhead camshaft with 16 valves. Thus increasing the Alpha-II G4FK DOHC engine's new advertised power to 75 kW / 101 hp / 102 PS and 136 Nm / 100 lb-ft of torque from 1995-1997. In 1998, Hyundai Avante GLS sedan and touring models were equipped with a more powerful Alpha-II G4FK DOHC variant with an advertised power further increased to 79 kW/ 106 hp / 107 PS and 137 Nm / 101 lb-ft of torque. SPECIFICATIONS: Total Displacement: 1495 cm3 / 91.2 cui Bore: 75.50 mm Stroke: 83.50 mm The Alpha-II G4FK engine was equipped on the vehicles listed below: 1995-1998 Hyundai Avante 1st-gen. phase-I Sedan 1996-1998 Hyundai Avante 1st-gen. phase-I Touring 1999-2003 Accent 2nd-gen. phase-I Hatchback
α-1.6DG4ED
The Hyundai Alpha-II G4ED is an in-line 4, spark-ignition 4-stroke, dual overhead camshaft with 16 valves. The engine's advertised power is 77 kW / 103 hp / 105PS and 143 Nm / 105 lb-ft of torque. SPECIFICATIONS: Bore: 76.50mm Stroke: 87.00mm Total displacement: 1599 cc Compression Ratio: 10 Firing Order: 1-3-4-2 Idle RPM: 750± 100 Ignition Timing at idle speed: BTDC 9° ± 5°/800 rpm The Alpha-II series G4ED engine was used on the following vehicles listed below: 2000-2003 Elantra 1.6i 3rd-gen. phase-I sedan and phase-I hatchback 2003-2006 Hyundai Accent 2nd-gen. phase-II hatchback 2003-2006 Hyundai Elantra 3rd-gen. phase-II sedan and phase-II hatchback 2003-2006 Kia Qianlima 2006-2011 Hyundai Getz Face Lift
1.4
The DOHC 1.4 L G4EEAlpha II debuted in the 2005 European Kia Rio JB, but wasn't available in North America. It utilized the 75.5 mm bore of the original 1.5 L engine, but was destroked to 78.1 mm. Other design improvements of the 1.6 L G4ED carried over to the 1.4 L G4EE, except for CVVT. The engine was noted for its smoother, freer revving nature as compared to the larger 1.6 L due to its squarer bore:stroke dimensions. It also produced slightly improved fuel consumption, but at the expense of overall power output.
