The

Hyundai Hyundai is a South Korean industrial conglomerate ("chaebol"), which was restructured into the following groups: * Hyundai Group, parts of the former conglomerate which have not been divested ** Hyundai Mobis, Korean car parts company ** Hyundai ...

Alpha series is a

multi-valve In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and may be able to operate at higher revolutions per minute (RPM) than a two-valve engine ...

gasoline inline 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 and was the first indigenous South Korean engine design. Design objectives were to provide high performance and good fuel economy with excellent durability at a reasonable cost. The first Alpha series engine developed and marketed was a 1.5L SOHC 12-

valve A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings ...

inline-four A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the e ...

. It was naturally aspirated and debuted in the 1992

Hyundai Scoupe The Hyundai Scoupe is a 2-door coupé based on the contemporaneous Hyundai Excel. The name, a portmanteau of "sporty" and "coupe," was pronounced "scoop". In the UK and other countries it is known as an "S Coupé". History Development of what w ...

. A 1.3L version debuted later in the

Hyundai Accent The Hyundai Accent ( ko, 현대 엑센트), or Hyundai Verna (현대 베르나) is a subcompact car produced by Hyundai. In Australia, the first generation models carried over the Hyundai Excel name used by the Accent's predecessor. The Accent ...

. A dual overhead camshaft (DOHC), four

per cylinder version later debuted in the 1996

GT. A strengthened block, an eight-counterweight crankshaft, and hydraulic engine mounts were added in 2000 to reduce NVH (noise, vibration and harshness). The 1.6L Alpha II debuted in 2001, eventually replacing the 1.3L and 1.5L. It was further revised in 2005 with a 1.4L version also debuting. Notable improvements over the Alpha 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 (increased from 48 mm to 52 mm), a revised PCM (powertrain control module), simplified and shortened intake ducting, a revised intake manifold, and a returnless fuel system. These improvements further reduced NVH and emissions, with the 1.6L version becoming ULEV-certified in all 50 U.S. states. Starting in 2006, the Alpha engine was phased out for the

Hyundai Gamma engine The Hyundai Gamma engine was introduced in 2006 to replace the existing Hyundai Alpha engine. There are 1.4 L and 1.6 L versions of this engine. The Gamma II can apparently run in Atkinson cycle (leaving intake open longer for more complete burn ...

, going out of production in 2011.

Alpha

1.3L (G4EA)

The G4EA is a SOHC 12-valve 1.3 L (1341 cc) engine, with a bore and

stroke A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

of 71.5 mm and 83.5 mm respectively. Output was at 5,500 rpm and at 3,000 rpm. The 1.3 L engine was not used in North America. ;Applications * 1999–2005 Hyundai Accent (LC) * 2002–2005

Hyundai Getz The Hyundai Getz is a supermini manufactured and marketed by Hyundai from 2002 to 2011 in three and five-door hatchback body styles over a single generation — and marketed globally except in the United States, Canada and China. The Getz ...

1.3L EFI (G4EH)

The G4EH is a SOHC 12-valve 1.3 L (1341 cc) engine with

electronic fuel injection Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a mani ...

, bore and

are 71.5 mm and 83.5 mm respectively. Output was at 5,500 rpm and at 3,000 rpm. The 1.3 L EFI engine was not used in North America. ;Applications * 1999–2005 Hyundai Accent (LC) * 1996–1999

Tatra Beta The Tatra Beta was an electric car with about 100 cars produced, using nickel-cadmium batteries This electric car was originally created by Škoda ELCAR Ejpovice, and they were also initially manufactured under the ŠKODA brand. At that time, the ...

1.5L (G4EK)

The G4EK is an in-line four, single overhead camshaft (SOHC), 12 valves (3-valves/cylinder); spark-ignition 4-stroke engine. Power output varies from the market it was sold. Output is with of torque for the European market, with of torque for the North American market and at 5,500 rpm with of torque at 4,000 rpm for the South Korean market. ;Applications * 1994-1997

Hyundai Excel The Hyundai Excel (), also known as the Hyundai Pony, Hyundai Pony Excel, Hyundai Presto, Mitsubishi Precis and Hyundai X2, is an automobile which was produced by Hyundai Motor Company from 1985 to 2000. It was the first front-wheel drive car pr ...

* 1992–1996

* 1994–2005 Hyundai Accent (X3/LC)

1.5L Turbo (G4EK Turbo)

The engine makes at 5,500 rpm and of torque at 4,500 rpm depending on market. ;Applications * 1992–1996

Alpha II

1.4L (G4EE)

The DOHC 1.4 L (1399 cc) G4EE Alpha 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 at the expense of overall power output. Power output is rated at 6,000 rpm and at 4,700 rpm. ;Applications * 2005–2010 Hyundai Accent (MC) * 2005–2011

* 2005–2011 Kia Rio (JB)

1.5L (G4EC/G4FK)

The Hyundai Alpha-I G4EC/G4FK is an upgraded version of the 1.5i Alpha G4EK SOHC engine. The new 1495cc G4FK is now an in-line 4, spark-ignition 4-stroke, dual overhead camshaft (DOHC) with 16 valves. Thus increasing the power to Output was at 5,800 rpm and at 3,000 rpm and was later increased to at 6,000 rpm and at 4,500 rpm. ;Applications * 1998-2000

(G4FK) * 1999–2005 Hyundai Accent (LC) * 1995–1998 Hyundai Elantra (J2) * 2000–2006 Hyundai Elantra (XD) * 2003–2006 Kia Cerato (LD) * 2002–2005 Hyundai Getz (LD)

1.6L (G4ED)

The Hyundai Alpha-II G4ED is an in-line 4, spark-ignition 4-stroke, dual overhead camshaft (DOHC) with 16 valves. The engine's advertised power is Output is at 6,000 rpm and at 4,500 rpm. Specification:
Bore:
Stroke:
Total displacement:
Compression Ratio: 10.0:1
Firing Order: 1-3-4-2
Idle RPM: 750± 100
Ignition Timing at idle speed: BTDC 9° ± 5°/800 rpm
Size (L x W x H): 465mm x 572mm x 654mm
Weight (dry):
Alternator: 13.5V/90A
Starter motor: 12V/0.9KW ;Applications * 2000–2001 Hyundai Coupe (RD) * 2000–2006 Hyundai Elantra (XD) * 2001–2008 Hyundai Coupe (GK) * 2003–2010 Hyundai Accent (LC/MC) * 2003–2006 Kia Cerato (LD) * 2002-2010 Hyundai Matrix (FC) * 2003–2006 Kia Qianlima * 2005–2011

* 2008–2020 Hyundai Elantra Yuedong (Chinese market only)

References

1992 Hyundai S-Coupé LS specifications - Carfolio.com1992 Hyundai S-Coupé GT specifications - Carfolio.comHyundai 1.6L Alpha EngineHyundai Accent History2006 Hyundai Accent Press Release
{{DEFAULTSORT:Hyundai Alpha Engine

Alpha Alpha (uppercase , lowercase ; grc, ἄλφα, ''álpha'', or ell, άλφα, álfa) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived from the Phoenician letter aleph , whic ...

1992 introductions Straight-four engines