G4N20B1 GAC G4N20B1

Модульний 4-циліндровий двигун з TwinPower Turbo, відомий своєю ефективністю та можливістю тюнінгу.

Brand: GAC Type: Petrol Configuration: Inline-4 Production Years: 2016 - теперішній час Production: Guangzhou, China
5 Brand engines
3 Modifications

Technical Specifications

Engine Displacement 2.0 L (1,997 cc)
Configuration Inline-4
Number of Cylinders 4
Valves per Cylinder 4
Power 150 - 190 л.с.
Torque 250 - 300 Н*м
Cylinder Bore 84.00 mm
Piston Stroke 90.00 mm
Compression Ratio 10.5:1
Firing Order 1-3-4-2
Fuel System Direct Injection
Aspiration Turbocharged
Turbocharger Single turbocharger
Intercooler Yes
Maximum RPM 6,000 rpm
Max Torque RPM 1,500 rpm
Valve Train DOHC
Timing Drive Chain
Timing Chain Replacement 200000 or as needed
Block Material Aluminum
Head Material Aluminum
Engine Weight 140 kg
Dimensions (L×W×H) 600 × 500 × 700 mm
Lubrication System Pressure lubrication
Cooling System Liquid cooling

Additional Information

Engine Family GAC G4 series
Manufacturing Plant Guangzhou, China

Maintenance

Engine Oil Capacity 5 L (with filter: 5.5 L)
Recommended Viscosity 5W-30
Oil Standard API SN
Recommended Brands GAC Motor Oil, Castrol, Mobil 1
Oil Change Interval 10 000 km or 12 mo
Oil Filter GAC123456
Air Filter GAC654321
Replace every 40 000 km
Spark Plugs Type: Iridium
Part number: GACSP123
Gap: 1 mm
Quantity: 4 pcs
Replace every 60 000 km
Coolant Capacity 6 L
Coolant Type G12 (GAC Coolant)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 90°C
Operating Temperature 90°C
Max Operating Temperature 120°C
Critical Temperature 130°C
Annual Maintenance Cost 500-800 USD

Reliability

Reliability rating: 7/10

Expected lifespan: 250 000 km

Common problems

Problem Severity Mileage Repair cost
Turbocharger failure Medium 100000-150000 km $800-1200

Known defects

  • Early models had oil consumption issues

Warranty extensions

  • GAC offers extended warranty options up to 5 years/100000 km

Tuning potential

Tuning potential: Medium | Max. safe power: 350 hp

Stage Power Torque Method Cost
Stage 1 210 hp 350 Nm ECU remap only
Reliability impact: Minimal 		$600
Stage 2 250 hp 400 Nm ECU, Downpipe, Intake
Required: Upgraded intercooler, ECU remap
Reliability impact: Low 		$1500
Stage 3 300 hp 450 Nm Hybrid Turbo, Injectors
Required: Bigger turbo, Forged internals, ECU remap
Reliability impact: Medium 		$3000

Popular modifications

  • ECU tune
  • Cold air intake
  • Performance exhaust

Tuning limitations

  • Stock fuel system limitations
  • Cooling upgrades recommended for high power

Cars with the G4N20B1 engine

This engine was fitted to 1 model

Photo Brand Model Generation Production years
No photo
 GAC GS3 GS3 II 2023 - present

All modifications (3)

Vehicle Generation Modification Power Gearbox Drive
GAC GS3 GS3 II 2.0T 2.0 л.с. 190 6-МКП 2WD 190 hp 6-МКП 2WD
GAC GS3 GS3 II 2.0T 2.0 л.с. 190 7-DSG 2WD 190 hp 7-DSG 2WD
GAC GS3 GS3 II 2.0T 2.0 л.с. 190 8-Автомат 4x4 190 hp 8-Автомат 4x4

Interesting Facts

  • G4N20B1 is part of GAC's first turbocharged engine lineup.
  • Designed for both performance and fuel efficiency.

Applications

Vehicle Generation Years Power Markets
GAC GS4 1st 2016-present 150hp/190hp China, Asia

Compatible transmissions: 6-speed Manual, 7-speed Dual-clutch

Drive types: FWD, AWD

Fuel Economy

Fuel Type Petrol 95
Octane Rating Minimum: 95 | Recommended: 98
Consumption (City) 9 L/100km
Consumption (Highway) 6.5 L/100km
Consumption (Combined) 7.5 L/100km
Real Consumption 8 L/100km
Fuel Tank Capacity 60 L
Range 800 km
Cost per 100 km 10-12 USD

Emissions Standards

Emission Standard Euro 6
CO₂ Emissions 150 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Comparison with competitors

Pros

  • Good balance of power and efficiency
  • Modern turbocharged design

Cons

  • Limited aftermarket support
  • Less known brand compared to competitors