Infiniti QX80 2014-present 5.6L V8 Engine Specifications
Explore detailed specifications for the 5.6L V8 engine in the 2014-Present Infiniti QX80. Learn about horsepower, torque, fuel system, and more for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 5.6L V8 engine used in the 2014-Present Infiniti QX80. It is designed to help users understand the engine's features, performance, and maintenance requirements. Use the search functionality to quickly find specific details or navigate through the sections to explore comprehensive information about the engine's design, performance, and key specifications.
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Key Specifications
Engine Displacement
5.6L
Horsepower
400 hp
Torque
413 lb-ft
Fuel Economy
14 city / 20 hwy mpg
Compression Ratio
11.2:1
Available Specifications
Engine Design
The 5.6L V8 engine in the Infiniti QX80 is engineered for power and efficiency. This section covers the engine's design features, including its construction, materials, and advanced technologies that contribute to its performance and durability.
Engine Design
The 5.6L V8 engine in the Infiniti QX80 is engineered for power and efficiency. This section covers the engine's design features, including its construction, materials, and advanced technologies that contribute to its performance and durability.
Construction and Materials
- Aluminum alloy block and cylinder heads
- DOHC (Dual Overhead Camshaft) design
- Chain-driven timing system
- Forged steel crankshaft
- High-strength connecting rods
- Advanced cooling system
Advanced Technologies
- Direct Injection Gasoline (DIG) system
- Variable Valve Event and Lift (VVEL) technology
- Electronic Throttle Control (ETC)
- Hydraulic engine mounts for reduced vibration
Performance
This section highlights the performance capabilities of the 5.6L V8 engine, including its power output, torque, acceleration, and fuel efficiency. It also covers the engine's responsiveness and smooth operation under various driving conditions.
Performance
This section highlights the performance capabilities of the 5.6L V8 engine, including its power output, torque, acceleration, and fuel efficiency. It also covers the engine's responsiveness and smooth operation under various driving conditions.
Power and Torque
- 400 horsepower @ 5800 rpm
- 413 lb-ft of torque @ 4000 rpm
- High compression ratio for improved efficiency
- Optimized air intake system
Fuel Efficiency
- EPA-estimated 14 mpg city / 20 mpg highway
- Eco mode for improved fuel economy
- Idle Stop system to reduce fuel consumption
Maintenance and Reliability
The 5.6L V8 engine is designed for long-term reliability with minimal maintenance. This section provides information on recommended maintenance intervals, common issues, and tips for ensuring the engine's longevity.
Maintenance and Reliability
The 5.6L V8 engine is designed for long-term reliability with minimal maintenance. This section provides information on recommended maintenance intervals, common issues, and tips for ensuring the engine's longevity.
Maintenance Intervals
- Oil change every 5,000-7,500 miles
- Spark plug replacement every 60,000 miles
- Air filter replacement every 30,000 miles
- Coolant flush every 60,000 miles
Common Issues and Solutions
- Regular inspection of the timing chain
- Monitor for oil leaks around gaskets
- Use synthetic oil for better performance
- Check engine mounts for wear and tear
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Engine Specifications
Overview
- Type
- V8
- Configuration
- Naturally aspirated
- Platform
- VK56VD
- Material
- Aluminum block and heads
- Location
- Front, longitudinal
Dimensions
- Displacement
- 5.6 liters (5552 cc)
- Bore
- 98 mm (3.86 in)
- Stroke
- 92 mm (3.62 in)
- Length
- 665 mm (26.18 in)
- Width
- 750 mm (29.53 in)
- Height
- 680 mm (26.77 in)
- Weight
- 253 kg (558 lbs)
Materials
- Engine Block
- Aluminum
- Cylinder Heads
- Aluminum
- Pistons
- Forged aluminum
- Connecting Rods
- Forged steel
- Crankshaft
- Forged steel
Features
- Performance
-
- 400 hp @ 5800 rpm
- 413 lb-ft @ 4000 rpm
- Direct injection
- Variable valve timing
- Efficiency
-
- Cylinder deactivation
- Advanced fuel injection
- Optimized combustion
- Cooling
-
- Liquid-cooled
- High-capacity radiator
- Dual electric fans
- Ignition
-
- Coil-on-plug ignition
- High-energy spark plugs
- Electronic ignition timing
- Exhaust
-
- Dual exhaust system
- Stainless steel headers
- Catalytic converters
Safety Features
- Engine Protection
-
- Low oil pressure shutdown
- Overheat protection
- Knock sensor
- Emissions
-
- OBD-II compliance
- EGR system
- Catalytic converters
Comfort Features
- Vibration Reduction
-
- Balanced crankshaft
- Hydraulic engine mounts
- Dampened pulley system
- Noise Reduction
-
- Acoustic engine cover
- Optimized intake design
- Sound-deadening materials
Accessories
- Belt Driven
-
- Alternator
- Power steering pump
- AC compressor
- Engine Components
-
- Oil filter
- Air filter
- Fuel pump
- Electronics
-
- ECU
- Sensors array
- Ignition coils
Maintenance
- Service interval
- Every 5,000 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug inspection
- Air filter replacement
- Coolant check
- Belt inspection
- Timing chain check
- Maintenance Notes
- Use synthetic oil recommended by manufacturer
Warranty
- Basic
- Miles: 60,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 6Coverage: Engine and transmission
- Emissions
- Miles: 70,000Years: 8Coverage: Catalytic converter and sensors
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Perforation from rust
Production Details
- Manufacturer
- Nissan
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% engine testingTolerance: Precision machiningCertification: ISO 9001
- Sustainability Practices
-
- Recycled materials
- Efficient manufacturing
- Low emissions production
- Production Metrics
- Units Per Year: 50,000Production Time: 8 hours per engine
Service Information for 5.6l v8 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Air filter inspection
- Spark plug check
- Belt inspection
- Coolant level check
Use synthetic oil for optimal performance
- Air filter replacement
- Fuel filter check
- Belt tension check
- Timing chain inspection
- Coolant flush
Inspect for leaks and wear on components
- Spark plug replacement
- Belt replacement
- Fuel injector service
- Engine mount inspection
- Exhaust system check
Perform thorough engine diagnostics
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 5.6L V8 engine compatible with Infiniti QX80 models from 2014 to present?
Is the 5.6L V8 engine compatible with Infiniti QX80 models from 2014 to present?
Yes, the 5.6L V8 engine is specifically designed for the Infiniti QX80 models from 2014 to the present. It features a 5.6-liter displacement, 32-valve DOHC design, and VVEL (Variable Valve Event & Lift) technology. It delivers 400 horsepower and 413 lb-ft of torque, ensuring optimal performance for the QX80’s full-size SUV requirements. Always confirm compatibility with your specific model year and trim before installation.
Q2 What are the maintenance requirements for the 5.6L V8 engine?
What are the maintenance requirements for the 5.6L V8 engine?
The 5.6L V8 engine requires regular maintenance to ensure longevity and performance. Key tasks include oil changes every 5,000-7,500 miles using 5W-30 synthetic oil, air filter replacement every 15,000-30,000 miles, and spark plug replacement every 60,000 miles. Additionally, inspect the timing chain, coolant, and belts periodically. Adhering to the manufacturer’s maintenance schedule is crucial for optimal engine health.
Q3 How do I install or replace the 5.6L V8 engine in a 2014-Present Infiniti QX80?
How do I install or replace the 5.6L V8 engine in a 2014-Present Infiniti QX80?
Replacing the 5.6L V8 engine involves several steps. First, disconnect the battery and drain fluids. Remove components like the air intake, exhaust manifold, and wiring harness. Use an engine hoist to lift and remove the old engine. Install the new engine by reversing the removal process, ensuring all connections are secure. Torque bolts to manufacturer specifications and refill fluids. Professional installation is recommended for proper alignment and safety.
Q4 What are common troubleshooting steps for the 5.6L V8 engine?
What are common troubleshooting steps for the 5.6L V8 engine?
Common issues with the 5.6L V8 engine include rough idling, reduced power, and check engine lights. Start by checking for error codes using an OBD-II scanner. Inspect spark plugs, fuel injectors, and the air intake system for blockages or wear. Ensure the fuel pump and filter are functioning properly. If issues persist, inspect the timing chain and sensors. Professional diagnosis may be necessary for complex problems.
Q5 How can I optimize the performance of the 5.6L V8 engine?
How can I optimize the performance of the 5.6L V8 engine?
To optimize performance, use high-quality synthetic oil and premium fuel. Regularly clean or replace air filters to ensure proper airflow. Upgrade to performance spark plugs and consider a cold air intake system. Ensure the exhaust system is free of restrictions. Regularly check and maintain tire pressure and alignment to reduce engine load. Finally, adhere to the manufacturer’s maintenance schedule for consistent performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Infiniti QX80 Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 2014-Present Infiniti QX80 with the 5.6L V8 engine.
Technical Service Bulletin for 5.6L V8 Engine
Coming SoonLatest updates and fixes for known issues related to the 5.6L V8 engine in the Infiniti QX80.
Infiniti QX80 Parts and Accessories Guide
Coming SoonDetailed catalog of OEM and aftermarket parts compatible with the 2014-Present Infiniti QX80 and its 5.6L V8 engine.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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