LQ1 Chevrolet LQ1
3.0-літровий V6 двигун від Chevrolet, відомий своєю потужністю та надійністю, але потребує регулярного обслуговування для уникнення проблем з перегрівом.
60
Brand engines
11
Modifications
Technical Specifications
| Engine Displacement | 3.4 L (3,400 cc) |
| Configuration | V6 |
| Number of Cylinders | 6 |
| Valves per Cylinder | 4 |
| Power | 200 - 210 л.с. |
| Torque | 271 - 285 Н*м |
| Cylinder Bore | 92.00 mm |
| Piston Stroke | 84.00 mm |
| Compression Ratio | 9.5:1 |
| Firing Order | 1-2-3-4-5-6 |
| Fuel System | Multi-point Fuel Injection |
| Aspiration | Naturally Aspirated |
| Intercooler | No |
| Maximum RPM | 7,000 rpm |
| Max Torque RPM | 4,000 rpm |
| Valve Train | DOHC |
| Timing Drive | Belt |
| Timing belt replacement interval | 100,000 km |
| Block Material | Cast Iron |
| Head Material | Aluminum |
| Lubrication System | Wet sump |
| Cooling System | Liquid cooling |
Additional Information
| Engine Family | GM 60-Degree V6 |
| Manufacturing Plant | Tonawanda Engine, New York, USA |
| Predecessor | LB6 |
| Successor | LA1 |
Maintenance
| Engine Oil Capacity | 4.7 L (with filter: 5 L) |
| Recommended Viscosity | 10W-30 |
| Oil Standard | API SJ |
| Recommended Brands | ACDelco, Mobil 1, Valvoline |
| Oil Change Interval | 5 000 km or 6 mo |
| Oil Filter | PF47 |
| Air Filter |
A1612C
Replace every 30 000 km |
| Fuel filter | GF578 |
| Spark Plugs |
Type: Platinum Part number: 41-906Gap: 1.5 mm Quantity: 6 pcs Replace every 60 000 km |
| Coolant Capacity | 10 L |
| Coolant Type | Dex-Cool (ACDelco) |
| Coolant Change Interval | 240 000 km |
| Thermostat Opening Temperature | 90°C |
| Operating Temperature | 90°C |
| Max Operating Temperature | 110°C |
| Critical Temperature | 120°C |
| Annual Maintenance Cost | 500-800 USD |
Reliability
Expected lifespan: 250 000 km
Common problems
| Problem | Severity | Mileage | Repair cost |
|---|---|---|---|
| Timing belt tensioner failure | High | 80000-120000 km | $500-1000 |
| Intake manifold gasket leaks | Medium | 100000-150000 km | $300-600 |
Known defects
- Weak timing belt tensioner
- Intake manifold gasket prone to leaks
Tuning potential
Tuning potential: Medium | Max. safe power: 300 hp
| Stage | Power | Torque | Method | Cost |
|---|---|---|---|---|
| Stage 1 | 230 hp | 310 Nm |
ECU remap Reliability impact: Minimal |
$400 |
| Stage 2 | 250 hp | 330 Nm |
ECU, Exhaust System Required: High-flow air filter, Performance exhaust Reliability impact: Low |
$1500 |
| Stage 3 | 280 hp | 360 Nm |
- Required: Camshaft upgrade, Ported heads, ECU remap Reliability impact: Medium |
$4000 |
Popular modifications
- Cold air intake
- Performance exhaust system
- ECU tuning
Tuning limitations
- Limited by stock internals
- Cooling system upgrades recommended for high power
Cars with the LQ1 engine
This engine was fitted to 10 models
| Photo | Brand | Model | Generation | Production years |
|---|---|---|---|---|
|
No photo
|
Chevrolet | Cavalier | Cavalier | 1995 - 2005 |
|
No photo
|
Chevrolet | Beretta | Beretta (Z26) | 1987 - 1996 |
|
No photo
|
Chevrolet | Corsica | Corsica (N-body) | 1987 - 1996 |
|
No photo
|
Oldsmobile | Achieva | Achieva (A-body) | 1991 - 1997 |
|
No photo
|
Oldsmobile | Cutlass Calais | Cutlass Calais (A-body) | 1984 - 1991 |
|
No photo
|
Oldsmobile | Cutlass Ciera | Cutlass Ciera (A-body) | 1981 - 1988 |
|
No photo
|
Oldsmobile | Eighty-Eight | Eighty-Eight (C-body) | 1986 - 1991 |
|
No photo
|
Pontiac | 6000 | 6000 (A-body) | 1982 - 1991 |
|
No photo
|
Pontiac | LeMans | LeMans (J-Body) | 1988 - 1993 |
|
No photo
|
Pontiac | Sunbird | Sunbird (J-body) | 1982 - 1994 |
All modifications (11)
| Vehicle | Generation | Modification | Power | Gearbox | Drive |
|---|---|---|---|---|---|
| Chevrolet Cavalier | Cavalier | 3.0L V6 200 л.с. 5-МКП 2WD | 200 hp | 5-МКП | 2WD |
| Chevrolet Cavalier | Cavalier | 3.0L V6 200 л.с. 4-Автомат 2WD | 200 hp | 4-Автомат | 2WD |
| Chevrolet Beretta | Beretta (Z26) | 2.2 L 4-циліндровий 110 л.с. 5-МКП 2WD | 110 hp | 5-МКП | 2WD |
| Chevrolet Corsica | Corsica (N-body) | 2.0L I4 130 л.с. 5-МКП 2WD | 130 hp | 5-МКП | 2WD |
| Oldsmobile Achieva | Achieva (A-body) | 2.3L I4 150 л.с. 5-МКП 2WD | 150 hp | 5-МКП | 2WD |
| Oldsmobile Cutlass Calais | Cutlass Calais (A-body) | 5.0L V8 180 л.с. 4-Автомат 2WD | 180 hp | 4-Автомат | 2WD |
| Oldsmobile Cutlass Ciera | Cutlass Ciera (A-body) | 5.0L V8 180 л.с. 4-Автомат 2WD | 180 hp | 4-Автомат | 2WD |
| Oldsmobile Eighty-Eight | Eighty-Eight (C-body) | 5.0L V8 180 л.с. 4-Автомат 2WD | 180 hp | 4-Автомат | 2WD |
| Pontiac 6000 | 6000 (A-body) | 3.1L V6 140 л.с. 4-Автомат 2WD | 140 hp | 4-Автомат | 2WD |
| Pontiac LeMans | LeMans (J-Body) | 2.0L I4 90 л.с. 5-МКП 2WD | 90 hp | 5-МКП | 2WD |
| Pontiac Sunbird | Sunbird (J-body) | 2.0 L Turbo 150 л.с. 5-МКП 2WD | 150 hp | 5-МКП | 2WD |
Interesting Facts
- The LQ1 was one of the first DOHC V6 engines produced by GM.
- It was known for its high-revving nature and sporty performance.
Applications
Total produced: unknown
| Vehicle | Generation | Years | Power | Markets |
|---|---|---|---|---|
| Chevrolet Lumina Z34 | First Generation | 1991-1994 | 200hp | USA, Canada |
| Chevrolet Monte Carlo Z34 | First Generation | 1995-1997 | 210hp | USA, Canada |
Compatible transmissions: 5-speed Manual, 4-speed Automatic
Drive types: FWD
Fuel Economy
| Fuel Type | Petrol 95 |
| Octane Rating | Minimum: 91 | Recommended: 95 |
| Consumption (City) | 13 L/100km |
| Consumption (Highway) | 9 L/100km |
| Consumption (Combined) | 11 L/100km |
| Real Consumption | 12.5 L/100km |
| Fuel Tank Capacity | 60 L |
| Range | 545 km |
| Cost per 100 km | 15-20 USD |
Emissions Standards
| Emission Standard | Euro 1 |
| CO₂ Emissions | 260 g/km |
| Particulate Filter (DPF) | Absent |
| AdBlue | Not Required |
Comparison with competitors
| Engine | Brand | Displacement | Power | Torque |
|---|---|---|---|---|
| 3.4 DOHC | Pontiac | 3,400 cc | 215 hp | 290 Nm |
Pros
- High-revving engine with sporty performance
- DOHC design for improved airflow
Cons
- Complex timing belt system
- Known gasket issues