Hyundai KIA Epsilon

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Hyundai / KIA
epsilon
Manufacturer:	Hyundai / KIA
Production period:	1997 until today
Design:	In-line three-cylinder / in- line four-cylinder
Engines:	0.8 l (798/814 cm³) 1.0 l (999 cm³) 1.1 l (1086 cm³)
Cylinder firing order:	1-3-2 / 1-3-4-2
Previous model:	none
Successor:	Kappa
Similar models:	none

Epsilon is a range of three and four-cylinder gasoline engines from the manufacturer Hyundai Motor Group with a single overhead camshaft ( SOHC ) and three valves per cylinder. The engines are built in Ulsan ( South Korea ) and Irrungattukatoi ( India ).

The engine block is made of gray cast iron , the cylinder head of light metal . The smallest engine with a displacement of 0.8 liters is only included in the first and current series. The new edition differs significantly from its predecessor. This started the series with a bore of 63 mm and 64 mm stroke at a dry weight of 97.5 kg. The middle motor has a 66 mm bore and 73 mm stroke. Like the largest of the series (67 mm bore and 77 mm stroke), at 83.9 kg, it weighs almost two kilograms more than the successor Hyundai KIA Kappa with an aluminum housing and larger displacement. Both sizes have appeared in two new editions. The new three-cylinder was derived from the latter in 2011. The idle speed of the Epsilon series is 850 rpm and increases to 900 revolutions per minute with active air conditioning.

The camshaft is driven by a toothed belt, the motors are not freewheels . The inspection is planned every 60,000 km, the timing belt replacement every 80,000 - 90,000 km depending on the model.

epsilon

With twelve valves, the Epsilon range is the only Hyundai or KIA engine range with fewer than four valves per cylinder, along with the 1.5 L Alpha . Two of the three valves were positioned on the intake side to ensure rapid and even filling in the cylinder to reach. A multi-point injection ( MFI ) in the intake manifold is used to form the mixture . The ignition is monitored by a knock sensor , which detects auto-ignition and informs the engine control unit of this. This shifts the ignition timing accordingly. Due to India's fluctuating fuel quality, the sensor is given a central and engine-friendly task.

Epsilon DLI

The now omitted ignition interrupter, whose contacts (left) changed their distance and thus the ignition point over time - at the expense of smoothness and performance ( cf. ).

In 2001 the Epsilon series received its first fundamental revision, which only affected the 1.0-liter engine, which was given an -E in the engine code to differentiate it . The 0.8 liter engine was not developed further and was phased out in the same year. The ignition distributor with mechanical ignition interruption was exchanged for a contactless and therefore less wear-resistant ignition. Their electronic control also specifies the ignition point and thus leads to more efficient combustion. It increased the output of the 1.0 liter engine by 3 kW and made the engine run smoother.

Like the following series, the name DLI was only used in the Indian market, but is the only differentiation available. It stands for the contactless ignition system " D istributor L ess I gnition".

Epsilon eRLX

In order to counteract the consumption of the Epsilon engines, which is perceived as too high compared to the Indian competition, Hyundai started a technical revision and a comprehensive advertising campaign for the revision called eRLX in 2002. For the first time, extensive use was made of comparative advertising . Instead of the discontinued 0.8-l variant, the 1.1-l was added as a further model. Low-friction piston rings and valve trains were used - using the "Rotary Head Intelligent Valve Actuator" (RHiATM). The central component, however, is the engine control unit supplied by Bosch . This regulates the injection quantity and ignition timing depending on the situation. For this purpose, multipoint injection activates two injectors at the same time under full load, while these are switched one after the other in partial load operation. Hyundai called this innovation "Differentially Programmed Intelligent Injection" (DPiITM). The enriched mixture is then ignited by the "Real Time Intelligent Ignition" (RTiITM) adapted to the driving situation and fuel quality. Instead, the earlier engine control unit used fixed characteristics without reference to the current (fuel) situation. The engine also compensates for fluctuations in the quality of the fuel with a "Fuel Quality Immunizer".

Epsilon iRDE

2004 started the again revised penultimate Epsilon series. Its abbreviation refers to the new "intelligent Responsive Drive Engine" control system, which takes into account the compression that has been increased to 10.1 thanks to the new pistons. It is also the cause of the additional performance achieved. It made its debut in 2004 in the Kia Picanto , followed in 2005 in the Hyundai Getz, the 67 hp top version of the series. It wasn't until 2008 that the Hyundai i10 had its marketing premiere with the use of the new abbreviation - on the markets in which the previous abbreviations were also marketed.

Epsilon iRDE 2

The Epsilon top version was upgraded to 69 hp at the end of 2010 and certified according to the Euro 5 standard. The move is astonishing in that a more modern drive appeared at the same time as the 1.0-liter Kappa . In Austria it is even offered in parallel. The Epsilon series is the only one that has already been certified according to the Euro 5 standard for an existing successor.

The pistons and piston rings, which have been given a friction-reducing coating, have been modified. In addition, the diameter of the inlet and outlet valves and their opening stroke were enlarged, resulting in more air throughput. This means that more petrol can be added, which results in 2 HP more power. The torque remained at 99 Nm. Its output is now the same as that of the 0.8-l turbo engine from the first Epsilon series from 1998 ( cf. ).

The standard consumption fell by 0.3 to 4.7 l / 100 km.

A 0.8-liter three-cylinder followed in 2011 for the Hyundai Eon . It is the only Epsilon motor to have a "Battery Management System". It reduces or increases the use of the dynamo-specific alternator and thus the drive effort for the engine. During braking, it lets the alternator produce electricity for the battery at full load, which is picked up again during the next acceleration process in order to then run the alternator with as little load as possible. In this way, the propulsion remains independent of the switched on air conditioning, report car magazines. Based on the 1.1L, however, there are strong vibrations despite the balance shaft, which also reach the gearshift lever, especially in (quiet) idling. The reason for this is the shift rods, which the rest of the model range uses shift cables instead. A significant start-up weakness up to 1500 tours despite the smooth clutch that is typical of the group leaves the new development behind other three-cylinder engines in the target markets of India, the Philippines, Vietnam and Chile. The standard consumption tests differ significantly from the European one, so that the 4.7 l / 100 km are not directly comparable. In real terms it is 5.8 l / 100 km, half a liter under the four-cylinder and 230 kg heavier i10.

Data

series	Engine code	Displacement (cm³)	Stroke × bore (mm)	Power at (1 / min)	Torque at (1 / min)	cylinder	compression	Charging	injection
Epsilon 1	G4HA	798	64 × 63	52 at 6000	70 at 4000	????? 4	9.5	-	MFI
Epsilon 2	G4HA-TC	798	64 × 63	70 at 6000	103 at 4000	4th	-? -	Turbo 12	MFI
Epsilon 1	G4HC	999	73 × 66	54 at 6000	73 at 4000	4th	9.5	-	MFI
Epsilon DLI 3	G4HC-E	999	73 × 66	58 at 5700	84 at 3250	4th	9.5	-	MFI
Epsilon eRLX 4	G4HD / G4H46 / 59 / G4H46-D4	1086	77 × 67	59 at 5450	89 at 2850	4th	9.6	-	MFI
Epsilon eRLX 5	G4H46	1086	77 × 67	62/63 at 5500	94/87 at 3200/3000	4th	9.6	-	MFI
Epsilon iRDE 6	G4HE	999	73 × 66	61.2 13 at 5600	86 at 2900 14	4th	10.1	-	MFI
Epsilon iRDE	G4HF (-E4) 11	999	73 × 66	63 at 5600	-? -	4th	10.1	-	MFI
Epsilon iRDE 7	G4HG	1086	77 × 67	63 at 5500	97 at 3000 14	4th	10.1	-	MFI
Epsilon iRDE 8	G4HG	1086	77 × 67	65 at 5500	97 at 2800 14	4th	10.1	-	MFI
Epsilon iRDE 9	G4HG / G4H48	1086	77 × 67	66.7 13 at 5500	99 at 3200 14	4th	10.1	-	MFI
Epsilon iRDE 2 10	G4HG	1086	77 × 67	69 at 5500	99 at 4500	4th	10.1	-	MFI
Epsilon iRDE 2 15	G3HA	814	77 × 67	56 at 5500	75 at 4000	3	10.1	-	MFI

¹ Data

²

³ Atos Prime data ( Memento of December 8, 2004 in the Internet Archive ) (PDF; 48 kB) / Dodge Atos data and production period / Hyundai Santro Pakistan data and production period

^4th Data

⁵

^6th

^7th Data

^8th Data

⁹ Data (PDF; 42 kB)

¹⁰ Data

¹¹ 2004-2007: G4HF, 2008-today: G4HF-E4

¹² Turbo used: Mitsubishi TDO25MR

¹³ The value is rounded up and down by the manufacturer

^14thAs in most engines, the 90 percent torque range extends considerably further, here from 2000 to 5000 rpm. This explains sometimes slightly higher Newton meter values ​​at a significantly higher speed, for example with the Epsilon iRDE 2.

^15th Data

commitment

The Epsilon motors installed worldwide are listed for each model; not all of the configurations listed are available in every country.

Hyundai Atos

• Atos (from 2000 Atos Prime) / Santro / Amica
  • G4HA, G4HA-TC, G4HC: 1998-2001
• Atos Prime / Santro ZipPlus / Amica / Kia Visto
  • G4HA, G4HC-E: 2001–2003 (in Pakistan until today)
• Atos Prime / Santro Xing / Amica / Dodge Atos
  • G4HD / G4H46 / 59 / G4H46-D4: 2003-2012
  • G4HG (63 hp): since 2005

Hyundai Eon

• Eon GB
  • G3HA: since 2011

Hyundai Getz

• Getz TB
  • G4H46: 2002-2005
• Getz TBi
  • G4HG / G4H48: 2005-2009

Hyundai i10

• i10 PA
  • G4HG / G4H48: 2008–2011
  • G4HG (69 hp): since 2011

Kia Picanto

• Picanto BA
  • G4HE: 2004-2011
  • G4HF: 2004-2007
  • G4HF-E4: 2008-2011
  • G4HG (65 hp): 2004–2011
• Picanto TA
  • G4HG (65 HP): since 2011 (Middle East)

Individual evidence

1. ↑ engine catalog (PDF; 7.9 MB)
2. ↑ Weight and idling speed ( Memento of the original from September 20, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. 
3. ↑ Timing belt change interval Hyundai Atos ( Memento of the original from February 22, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
4. ↑ Timing belt change interval Hyundai Getz ( Memento of the original from August 26, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
5. ↑ MFI in the Epsilon engine
6. ↑ Knock sensor in the Epsilon engine ( memento of the original from April 20, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
7. ↑ Ignition distributor in the Epsilon engine  ( page can no longer be accessed , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.  
8. ↑ Epsilon DLI - Innovations contactless ignition system ( Memento of the original from May 28, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
9. ↑ ^{a b} Epsilon DLI - Innovations electronic control  ( page can no longer be accessed , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.  
10. ^ Epsilon DLI - Marketing
11. ↑ Epsilon eRLX - Marketing Campaign ( Memento of the original from January 16, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
12. ↑ Epsilon eRLX - motor control  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.  
13. ↑ Epsilon eRLX - Innovations I ( Memento of the original from March 27, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 8.4 MB) 
14. ↑ Epsilon eRLX - Innovations II
15. ↑ Epsilon iRDE in the Hyundai Atos
16. ↑ Epsilon iRDE in the Hyundai Getz
17. ↑ Epsilon iRDE 2 and Kappa in the Hyundai i10 ( memento of the original from June 4, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. 
18. ↑ Epsilon iRDE 2 in the Hyundai i10 ( Memento of the original from March 21, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. 
19. ↑ Standard consumption Epsilon iRDE
20. ↑ Standard consumption Epsilon iRDE 2
21. ↑ Reviews of the Hyundai Eon with normal and everyday consumption (Overdrive, AutoBild India)
22. ↑ Indian driving cycle IDC
23. ↑ Chilean Eon standard consumption: 4.8 l / 100 km ( Memento of the original from January 24, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 3.7 MB) 
24. ↑ Video test of the Hyundai Eon