Editing Hyundai Beta engine (section)

==Beta==

==={{anchor|G4GR}} 1.6L (G4GR)===
The 1.6-liter Beta (Engine code: G4GR) is an in-line, spark-ignition 4-stroke, dual overhead camshaft ([[Overhead camshaft|DOHC]]) 16 valve engine and had two (2) variants depending on the vehicle's sub-model. Advertised power was 66&nbsp;kW/ 89&nbsp;hp/ 90 PS (ECE) and 126 Nm/ 93&nbsp;lb-ft of torque or 84&nbsp;kW/113&nbsp;hp/114 PS (ECE) with 143 Nm / 105&nbsp;lb-ft of torque depending on market and application.

The engine was assembled from 1995 to 2001 at the Ulsan plant. Unlike other representatives of the Beta series, this engine did not receive the second generation and was replaced by the power unit Alpha II. In a number of markets, a deferred version of 90&nbsp;hp was sold.<ref>{{cite web | url=https://otoba.ru/dvigatel/hyundai/g4gr.html#tth | title=G4GR - двигатель Хендай Лантра 1.6 литра &#124; Otoba.ru | date=18 April 2018 }}</ref>

Specification:<br/>
Cylinder bore: 77.40&nbsp;mm/ 3.051 in<br/>
Stroke: 85.00&nbsp;mm/ 3.346 in <br/>
Engine Displacement: 1599 cm3 / 97.9 cui<br/>
Compression Ratio: 9.85<br/>
Firing Order: 1-3-4-2<br/>
Idle RPM: 800°± 100<br/>
Ignition Timing at idling speed: BTDC 7°± 5°/800&nbsp;rpm(Limit: BTDC 10°± 5°/800&nbsp;rpm)<br/> 
Cylinder bore: 77.40&nbsp;mm -77.43&nbsp;mm<br/>
Out-of-roundness and taper of cylinder bore: 0.01&nbsp;mm<br/>
Clearance with piston: 0.02mm - 0.04&nbsp;mm

Piston:<br/>
Piston O.D.: 77.37-77.40&nbsp;mm<br/>
Piston Service size: 0.25, 0.50, 0.75, 1.00&nbsp;mm
(0.010, 0.020, 0.030, 0.039 in.) oversize

Valve Guide:<br/>
Installed dimension O.D. (Intake): 14&nbsp;mm (0.551 in.) <br/>
Installed dimension O.D. (Exhaust): 14&nbsp;mm (0.551 in.) <br/>
Service size: 0.05, 0.25, 0.50&nbsp;mm (0.002, 0.010, 0.020 in.) oversize

The 2nd generation Elantra (J2) and 1997-2000 Hyundai Coupe (RD) were equipped with Beta I G4GR engine and were distributed primarily within the European, Russian, Middle East and parts of Asian General Market. The vehicles sold in this market were equipped with an Adjusting Potentiometer, idle mixture.
All models except the engine in the Hyundai Coupe did not include a [[Mass flow sensor|Mass Air Flow]] (Air Mass) sensor which can be purchased separately.
For aftermarket barometric pressure (MAP) sensor installation, an integrated [[MAP sensor|Manifold Absolute Pressure]] (MAP) and the [[Temperature sensor|Intake Air Temperature (IAT) sensor]] is available.

====Applications====
* [[Hyundai Elantra#J2|Hyundai Elantra (J2)]] (1995–2000)
* [[Hyundai Tiburon#RD|Hyundai Tiburon/Coupe (RD)]] (1996–2001)

==={{anchor|G4GM}} 1.8L (G4GM) ===
The 1.8-liter Hyundai G4GM engine was manufactured from 1995 to 2003 at the Ulsan enterprise and was put on several popular models of the Korean concern, for example the Elantra and Coupe. The motor was assembled for eight years and after it was replaced with the 1.8L Beta II engine.

Specification:

Cylinder bore: 82&nbsp;mm (3.228 in.) <br/>
Stroke: 85&nbsp;mm (3.346 in.)<br/>
Engine Displacement: 1795cc (109.54 cu.in.)<br/>
Compression Ratio: 10.0<br/>
Firing Order: 1-3-4-2 <br/>
Idle RPM: 800°± 100<br/>
Ignition Timing at idling speed: BTDC 10°±5°/800&nbsp;rpm<br/>
Cylinder bore: 82.00-82.03&nbsp;mm (3.2283 - 3.2295 in.)<br/>
Out of-roundness & taper of cylinder bore: Less than 0.01&nbsp;mm (0.0004 in.)<br/>
Clearance with piston: 0.02-0.04&nbsp;mm (0.0008 - 0.0016 in.)

====Applications====
* [[Hyundai Elantra#J2|Hyundai Elantra (J2)]] (1995–2000)
* [[Hyundai Tiburon#RD|Hyundai Tiburon/Coupe (RD)]] (1996–2001)

==={{anchor|G4GF}} 2.0L (G4GF) ===
The '''G4GF''' (also called the '''2.0 D''') is the 2.0L (1975cc) version, having debuted in 1997 for the [[Hyundai Tiburon]]. It shares the 82&nbsp;mm bore of the 1.8 but is stroked to 93.5&nbsp;mm. It has a cast iron engine block and aluminum [[DOHC]] cylinder head. It uses MFI [[fuel injection]], has four valves per cylinder and features powdered cast steel connecting rods. OPA Output is 140&nbsp;hp (102&nbsp;kW) at 6000&nbsp;rpm and {{convert|133|lb.ft|N.m}}

The 2.0-liter Hyundai G4GF engine was assembled from 1996 to 2001 at an enterprise in Ulsan. The motor was replaced by the 2.0L Beta II engine.

====Applications====
* [[Hyundai Tiburon#RD|Hyundai Tiburon/Coupe]] (1996–2001)
* [[Hyundai Elantra#J2|Hyundai Elantra (J2)]] (1995 - 2000)