The

Hyundai Hyundai is a former 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 Asan, a real estate construction ...

Alpha series is a

multi-valve A multi-valve or multivalve Four-stroke engine, four-stroke internal combustion engine is one where each Cylinder (engine), cylinder has ''more than two'' poppet valve, valves – more than the minimum required of one of each, for the purposes of ...

gasoline inline four-cylinder engine family comprising 1.3, 1.4, 1.5, and 1.6 L naturally aspirated versions and a 1.5 L 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 marketed was the 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 Slurry, slurries) by opening, closing, or partially obstructing various passageways. Valves are technically Pip ...

inline-four A straight-four engine (also referred to as an inline-four engine) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The majority of automotive four-cylinder engines use a straight-four layout ( ...

. It was offered in naturally aspirated and turbo versions and debuted in the 1992

Hyundai Scoupe The Hyundai Scoupe, also called the Hyundai S-Coupe, is a 2-door coupé produced by South Korean manufacturer Hyundai Motor Company, Hyundai from 1990 to 1995, and based on the contemporaneous Hyundai Excel. The name, a portmanteau of "sporty" and ...

. A 1.3L version debuted later in the

Hyundai Accent The Hyundai Accent (), 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 was replaced in 2000 ...

. A dual overhead camshaft (DOHC), four

per cylinder version debuted in the 1996

GT. A strengthened block, an eight-counterweight crankshaft, and hydraulic engine mounts were added from 2000-onward 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 piston skirts, 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.

Alpha

1.3L CON (G4EA)

The G4EA is a

carbureted A carburetor (also spelled carburettor or carburetter) is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the Ventu ...

SOHC 12-valve engine with a bore and

stroke Stroke is a medical condition in which poor cerebral circulation, blood flow to a part of the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemor ...

of 71.5 mm and 83.5 mm respectively. Output is at 5,500 rpm and at 3,000 rpm. The 1.3 L engine was not sold in North America. ;Applications * 1994–2000 Hyundai Accent (X3)

1.3L EFI (G4EH)

The G4EH is a fuel injected version of the Alpha G4EA. Output is at 5,500 rpm and at 3,000 rpm. The 1.3 L EFI engine was not sold in North America. ;Applications * 1994–2005 Hyundai Accent (X3/LC) * 1996–1999

Tatra Beta The Tatra Beta was an electric car with about 100 units 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, t ...

* 2002–2005

Hyundai Getz The Hyundai Getz is a supermini manufactured and marketed by Hyundai Motor Company, 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, Canad ...

1.5L (G4EK)

The G4EK is a fuel injected SOHC 12-valve engine. Output is with of torque for the European market and with of torque for the North American market. ;Applications * 1994-1997

Hyundai Excel The Hyundai Excel (), also known as the Hyundai Pony, Hyundai Pony Excel, Hyundai Presto, Mitsubishi Precis, Hyundai X2 and Hyundai XL, is an automobile which was produced by Hyundai Motor Company from 1985 to 1999. It was the first front-wheel ...

* 1992–1996

* 1994–2005 Hyundai Accent (X3/LC) * 1995–1998 Hyundai Elantra (J2)

1.5L (G4EC/G4FK)

The G4EC/G4FK is an upgraded version of the Alpha G4EK with the addition of a DOHC cylinder head and 16 valves. Power output is at 5,800 rpm and at 3,000 rpm and was later increased to at 6,000 rpm and at 4,500 rpm. ;Applications * 1998-1999

(G4FK) * 2000

(G4EC) * 1999–2005 Hyundai Accent (LC)(G4EC - G4ED) * 1995–1998 Hyundai Elantra (J2) * 2000–2006 Hyundai Elantra (XD) * 2003–2006 Kia Cerato (LD) * 2002–2005 Hyundai Getz (LD)

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)

1.6L (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. Post 2005 models feature Hyundai's

variable valve timing Variable valve timing (VVT) is the process of altering the timing of a Poppet valve, valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combina ...

technology (CVVT) 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 An alternator (or synchronous generator) is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field wit ...

: 13.5V/90A
Starter motor: 12V/0.9KW ;Applications * 2005–2011 Kia Rio (JB) * 2000–2001 Hyundai Coupe (RD) * 2000–2006 Hyundai Elantra (XD) * 2001–2008 Hyundai Coupe (GK) * 2001–2010 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

External links

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 ) 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'' , whose name comes from the West Semitic word for ' ...

1992 introductions Straight-four engines