Hyundai Alpha engine

Hyundai Alpha α-series
Hyundai Alpha α-series
Overview
Manufacturer	Hyundai Motors
Production	1992–2011
Layout
Displacement	1.3 L (1,341 cc); 1.4 L (1,399 cc); 1.5 L (1,495 cc); 1.6 L (1,599 cc)
Cylinder bore	71.5 mm (1.3L); 75.5 mm (1.4/1.5L); 76.5mm (1.6L)
Piston stroke	78.1 mm (1.4L); 83.5 mm (1.3/1.5L); 87 mm (1.6L)
Cylinder block material	Cast Iron
Cylinder head material	Aluminum alloy
Valvetrain	SOHC ; DOHC
Compression ratio	7.5:1–10.0:1
RPM range
Idle speed	700-800 ± 100 RPM
Combustion
Fuel system	Carbureted; Electronic Fuel Injection
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Liquid-cooled
Output
Power output	72–129 PS (53–95 kW; 71–127 hp)
Torque output	11.2–18.3 kg⋅m (81–132 lb⋅ft; 110–179 N⋅m)
Chronology
Successor	Gamma

Last updated May 08, 2024

The Hyundai Alpha series is a multi-valve 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.^[1]

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 SOHC 12-valve engine with a bore and stroke of 71.5 mm and 83.5 mm respectively. Output is 72 PS (53 kW; 71 hp) at 5,500 rpm and 11.2 kg⋅m (110 N⋅m; 81 lb⋅ft) 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 85 PS (63 kW; 84 hp) at 5,500 rpm and 12 kg⋅m (118 N⋅m; 87 lb⋅ft) 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
2002–2005 Hyundai Getz

1.5L (G4EK)

The G4EK is a fuel injected SOHC 12-valve engine. Output is 88 PS (65 kW; 87 hp) with 13.5 kg⋅m (132 N⋅m; 98 lb⋅ft) of torque for the European market and 93 PS (68 kW; 92 hp) with 13.5 kg⋅m (132 N⋅m; 98 lb⋅ft) of torque for the North American market.

Applications

1994-1997 Hyundai Excel
1992–1996 Hyundai Scoupe
1994–2005 Hyundai Accent (X3/LC)

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 102 PS (75 kW; 101 hp) at 5,800 rpm and 13.6 kg⋅m (133 N⋅m; 98 lb⋅ft) at 3,000 rpm and was later increased to 107 PS (79 kW; 106 hp) at 6,000 rpm and 13.8 kg⋅m (135 N⋅m; 100 lb⋅ft) at 4,500 rpm.

Applications

1998-1999 Hyundai Excel (G4FK)
2000 Hyundai Excel (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 115–129 PS (85–95 kW; 113–127 hp) at 5,500 rpm and 17–18.3 kg⋅m (167–179 N⋅m; 123–132 lb⋅ft) of torque at 4,500 rpm depending on market.

Applications

1992–1996 Hyundai Scoupe

Alpha II

1.4L (G4EE)

The DOHC 1.4 L (1399 cc) 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 at the expense of overall power output.

Power output is rated 95 PS (70 kW; 94 hp) at 6,000 rpm and 12.7 kg⋅m (125 N⋅m; 92 lb⋅ft) at 4,700 rpm.

Applications

2005–2010 Hyundai Accent (MC)
2005–2011 Hyundai Getz
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 105–112 PS (77–82 kW; 104–110 hp) at 6,000 rpm and 14.6–14.9 kg⋅m (143–146 N⋅m; 106–108 lb⋅ft) at 4,500 rpm.

Post 2005 models feature Hyundai's variable valve timing technology (CVVT)

Specification:
Bore: 76.5 mm (3.01 in)
Stroke: 87 mm (3.43 in)
Total displacement: 1,599 cc (97.6 cu in)
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): 118.2 kg (260.6 lb)
Alternator: 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 Hyundai Getz
2008–2020 Hyundai Elantra Yuedong (Chinese market only)

Related Research Articles

The F engine family from Mazda is a mid-sized inline-four piston engine with iron block, alloy head and belt-driven SOHC and DOHC configurations. Introduced in 1983 as the 1.6-litre F6, this engine was found in the Mazda B-Series truck and Mazda G platform models such as Mazda 626/Capella as well as many other models internationally including Mazda Bongo and Ford Freda clone, Mazda B-series based Ford Courier, Mazda 929 HC and the GD platform-based Ford Probe

The Mazda B-series is a small-sized, iron-block, inline four-cylinder engine with belt-driven SOHC and DOHC valvetrain ranging in displacement from 1.1 to 1.8 litres. It was used in a wide variety of applications, from front-wheel drive economy vehicles to the turbocharged full-time 4WD 323 GTX and rear-wheel drive Miata.

The Mitsubishi Sirius or 4G6/4D6 engine is the name of one of Mitsubishi Motors' four series of inline-four automobile engines, along with Astron, Orion, and Saturn.

The Mitsubishi 4G9 engine is a series of straight-4 automobile engines produced by Mitsubishi Motors. All are 16-valve, and use both single- and double- overhead camshaft heads. Some feature MIVEC variable valve timing, and it was the first modern gasoline direct injection engine upon its introduction in August 1996.

The 6G7 series or Cyclone V6 engine is a series of V6 piston engines from Mitsubishi Motors. Five displacement variants were produced from 1986 to 2021, with both SOHC and DOHC, naturally aspirated and turbo charged layouts. While MIVEC variable valve timing has also been implemented in some versions the 2.5, 3.0, and 3.5 L versions were also available with gasoline direct injection. This engine has been the flagship powerplant of the company except when they briefly built a V8 in 1999–2001. The staple of their high-end sedans, it was given twin-turbos for the Mitsubishi GTO, and became the most powerful car ever built by the company at the time.

The Hyundai Beta engines are 1.6 L to 2.0 L I4 built in Ulsan, South Korea.

The Hyundai Sirius engine was the company's first larger inline-four engine, with displacements from 1.8 L to 2.4 L. It is a license-built Mitsubishi construction. This engine is no longer used by Hyundai.

The Hyundai Delta family is the company's smaller V6 engine, ranging from 2.5 to 2.7 L. Both share the same 75 mm (2.95 in) stroke and both are DOHC designs.

The Hyundai Sigma engine is a series of V6 piston engines from Hyundai Motor Company, based on the Mitsubishi 6G7 engine. The Sigma engine family began life with the simple V6 name. Displacement ranges from 2.5 to 3.5 L.

Hyundai's Epsilon engine is a category of small inline gasoline automobile engines.

The Hyundai Lambda engine family is the company's all-aluminium V6 engine manufactured since 2005. It is currently manufactured at Hyundai's plant in Asan, South Korea. It used to be manufactured at HMMA plant in Montgomery, Alabama, United States. All versions of this engine use a timing chain.

The Hyundai Theta is a gasoline four-cylinder automobile engine family. The third all-aluminum engine of Hyundai Motor Company debuted in the fourth-generation Hyundai Sonata sedan, which was unveiled in August 2004 in South Korea. Hyundai Motor Manufacturing Alabama (HMMA) built a Theta II engine shop on the grounds of their Montgomery, Alabama automobile factory.

The Hyundai Accent, or Hyundai Verna 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 by the Hyundai Verna in South Korea, although most international markets, including the US, retained the "Accent" name. The "Accent" name is an abbreviation of Advanced Compact Car of Epoch-making New Technology.

Hyundai's Kappa automobile engine series consists of three-cylinder and four-cylinder models.

The Hyundai U engine is a series of three or four-cylinder diesel engines made for automotive applications by the Hyundai Kia Automotive Group. The U series of engines includes the smallest automotive diesel engines produced by Hyundai.

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 Hyundai Nu engine was introduced in the 2011 Hyundai Elantra to replace the previous Beta engines. It was designed to fill the gap between the new Gamma 1.6L and the 2.0L Theta II.

The Hyundai Smartstream is a gasoline and diesel automobile engine branding used by Hyundai since 2018. An all-aluminum engine of Hyundai Motor Company debuted in the third-generation Hyundai i30 hatchback, which was unveiled in 2018 at the Paris Motor Show.

The Hyundai D engine is a family of 3-cylinder and 4-cylinder diesel engines produced by Hyundai Motor Company under license from VM Motori.

References

↑ Lee, Hyun Soon; Rho, Il Hyun (1989-11-01). "The Design and Development of the Hyundai Alpha Engine". 5th International Pacific Conference on Automotive Engineering. Warrendale, PA: Hyundai Motor Co.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[1] Lee, Hyun Soon; Rho, Il Hyun (1989-11-01). "The Design and Development of the Hyundai Alpha Engine". 5th International Pacific Conference on Automotive Engineering. Warrendale, PA: Hyundai Motor Co.

[1]