TJet 1.4 Fiat TJet 1.4

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

Brand: Fiat Type: Petrol Configuration: Inline-4 Production Years: 2005 - 2017 Production: Bologna, Italy
90 Brand engines
2 Modifications

Technical Specifications

Engine Displacement 1.4 L (1,368 cc)
Configuration Inline-4
Number of Cylinders 4
Valves per Cylinder 4
Power 120 - 150 л.с.
Torque 206 - 230 Н*м
Cylinder Bore 72.00 mm
Piston Stroke 84.00 mm
Compression Ratio 9.8:1
Firing Order 1-3-4-2
Fuel System Multi-point Fuel Injection
Aspiration Turbocharged
Turbocharger Garrett GT1544
Intercooler Yes
Maximum RPM 6,000 rpm
Max Torque RPM 2,000 rpm
Valve Train DOHC
Timing Drive Belt
Timing belt replacement interval 120,000 km
Block Material Aluminum
Head Material Aluminum
Engine Weight 130 kg
Dimensions (L×W×H) 600 × 500 × 600 mm
Lubrication System Pressure lubrication
Cooling System Liquid cooling

Additional Information

Engine Family Fiat T-Jet
Manufacturing Plant Bologna, Italy

Maintenance

Engine Oil Capacity 4 L (with filter: 4.5 L)
Recommended Viscosity 5W-30
Oil Standard ACEA A3/B3
Recommended Brands Selenia, Castrol, Mobil 1
Oil Change Interval 15 000 km or 12 mo
Oil Filter 71730000
Air Filter 71730001
Replace every 60 000 km
Spark Plugs Type: Iridium
Part number: 55210080
Gap: 0.8 mm
Quantity: 4 pcs
Replace every 60 000 km
Coolant Capacity 6 L
Coolant Type G12 (Fiat Coolant)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 88°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 $800-1500
Timing belt wear Low 100000-120000 km $300-500

Known defects

  • Oil consumption issues in early models
  • Turbo wastegate actuator failures

Warranty extensions

  • Fiat extended warranty for turbo issues up to 5 years/100000 km

Tuning potential

Tuning potential: Medium | Max. safe power: 230 hp

Stage Power Torque Method Cost
Stage 1 160 hp 250 Nm ECU remap only
Reliability impact: Minimal
$400
Stage 2 180 hp 280 Nm ECU, Downpipe, Intake
Required: Upgraded intercooler, ECU remap
Reliability impact: Low
$1200
Stage 3 210 hp 320 Nm -
Required: Bigger turbo, Forged internals, ECU remap
Reliability impact: Medium
$3000

Popular modifications

Tuning limitations

  • Stock turbo limits at ~210hp
  • Cooling system needs upgrades for high power levels

Cars with the TJet 1.4 engine

This engine was fitted to 1 model

Photo Brand Model Generation Production years
No photo
Fiat Linea Linea 2007 - 2015

All modifications (2)

Vehicle Generation Modification Power Gearbox Drive
Fiat Linea Linea 1.4 16V 77 л.с. 5-МКП 2WD 77 hp 5-МКП 2WD
Fiat Linea Linea 1.4 16V 77 л.с. 6-МКП 2WD 77 hp 6-МКП 2WD

Interesting Facts

  • The TJet engine was one of Fiat's first turbocharged engines in the small car segment.
  • It features a unique multi-air system for improved efficiency.

Applications

Total produced: approximately 500000

Vehicle Generation Years Power Markets
Fiat Linea 2007-2017 2007-2017 120hp/150hp Europe, Asia, South America
Fiat Punto 2005-2018 2005-2018 120hp/150hp Europe, Asia

Compatible transmissions: 5-speed Manual, 6-speed Automatic

Drive types: FWD

Fuel Economy

Fuel Type Petrol 95
Octane Rating Minimum: 95 | Recommended: 98
Consumption (City) 9 L/100km
Consumption (Highway) 5.5 L/100km
Consumption (Combined) 7 L/100km
Real Consumption 7.5 L/100km
Fuel Tank Capacity 50 L
Range 714 km
Cost per 100 km 10-12 USD

Emissions Standards

Emission Standard Euro 5
CO₂ Emissions 155 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Awards and Recognition

  • Best Small Engine (2009) — Engine of the Year Awards

Comparison with competitors

Engine Brand Displacement Power Torque
EA111 Volkswagen 1,390 cc 140 hp 200 Nm
Kappa 1.4 Chrysler 1,368 cc 130 hp 210 Nm

Pros

  • Good balance of power and fuel efficiency.
  • Turbocharged for better performance.

Cons

  • Potential turbo issues in high mileage.
  • Timing belt maintenance required.