Infiniti Q70 2014-present 5.6L V8 Engine Engine Specifications
Infiniti Q70 2014-present

Infiniti Q70 2014-present 5.6L V8 Engine Specifications

Explore the detailed 5.6L V8 engine specifications for the 2014-Present Infiniti Q70. This guide covers horsepower, torque, fuel efficiency, and engine dimensions, providing essential information for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 5.6L V8 engine used in the 2014-Present Infiniti Q70. It is designed to help users understand the engine's performance, design, and capabilities. Use the search and navigation instructions to quickly find relevant sections. Each section is organized to provide a comprehensive understanding of the engine's features and technical details.

How to Use

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Key Specifications

Displacement

5.6L

Horsepower

420 HP

Torque

414 lb-ft

Fuel Economy

16/24 mpg

Acceleration (0-60 mph)

5.2 sec

Available Specifications

Engine Performance

This section covers the performance characteristics of the 5.6L V8 engine, including horsepower, torque, and acceleration. It also highlights the engine's efficiency and responsiveness in various driving conditions.

Power and Torque
  • 420 horsepower at 6,000 RPM
  • 414 lb-ft of torque at 4,000 RPM
  • High-compression ratio for improved efficiency
  • Dual overhead camshaft (DOHC) design
  • Variable Valve Event and Lift (VVEL) technology
  • Optimized for premium fuel
Acceleration and Top Speed
  • 0-60 mph in 5.2 seconds
  • Top speed electronically limited to 155 mph
  • Smooth power delivery across the rev range
  • Enhanced throttle response
  • Adaptive shift control for quick gear changes
  • Sport-tuned exhaust system

Engine Design

This section explores the design and engineering of the 5.6L V8 engine, focusing on its construction, materials, and advanced technologies that contribute to its performance and durability.

Construction and Materials
  • Aluminum alloy block and heads for reduced weight
  • Forged steel crankshaft for added strength
  • Plasma-sprayed cylinder bores for durability
  • Low-friction piston rings for improved efficiency
  • High-flow intake and exhaust ports
  • Thermal management system for optimal temperature control
Advanced Technologies
  • Direct injection fuel system for precise fuel delivery
  • Continuously Variable Valve Timing Control (CVTCS)
  • Electronic throttle control for improved responsiveness
  • Active noise cancellation for a quieter cabin
  • Integrated starter-generator for energy recovery
  • Eco mode for improved fuel economy

Fuel Efficiency and Emissions

This section highlights the fuel efficiency and emissions performance of the 5.6L V8 engine, showcasing its compliance with environmental standards and its ability to balance power and economy.

Fuel Economy
  • 16 mpg city / 24 mpg highway
  • Improved efficiency with advanced fuel management
  • Eco pedal feedback system for better driving habits
  • Reduced internal friction for better mileage
  • Lightweight components for enhanced efficiency
  • Optimized aerodynamics for fuel savings
Emissions Control
  • Meets ULEV (Ultra Low Emission Vehicle) standards
  • Advanced catalytic converter system
  • Reduced CO2 emissions compared to previous models
  • Onboard diagnostics for emission monitoring
  • Start-stop technology for reduced idling emissions
  • Compliant with global environmental regulations

Engine Specifications

Overview

Type
Naturally Aspirated V8
Configuration
90-degree V8
Platform
Infiniti VK56VD
Material
Aluminum block and heads
Location
Front longitudinal

Dimensions

Length
29.5 inches (749 mm)
Width
27.6 inches (701 mm)
Height
25.9 inches (658 mm)
Weight
467 lbs (212 kg)
Displacement
338.8 cubic inches (5552 cc)
Bore
3.7 inches (94 mm)
Stroke
3.9 inches (100 mm)

Materials

Engine Block
Aluminum alloy
Cylinder Heads
Aluminum alloy
Pistons
Forged aluminum
Crankshaft
Forged steel
Valves
Titanium intake, steel exhaust

Features

Performance
  • Direct injection
  • Variable Valve Event & Lift (VVEL)
  • Horsepower: 420 hp @ 5800 rpm
  • Torque: 417 lb-ft @ 4000 rpm
Efficiency
  • Dual knock control sensors
  • Optimized combustion chamber design
  • Low friction components
Cooling
  • High-capacity water pump
  • Dual radiator fans
  • Oil cooler
Ignition
  • Direct ignition system
  • Iridium-tipped spark plugs
  • Coil-on-plug design
Exhaust
  • Dual exhaust system
  • 2-stage catalytic converters
  • Variable exhaust valve timing

Safety Features

Engine Protection
  • Knock sensor system
  • Low oil pressure warning
  • Overheat protection
Emissions
  • OBD-II compliant
  • LEV2 emissions certified
  • Closed-loop fuel system

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
  • Sound insulation
Vibration Control
  • Balanced crankshaft
  • Counter-rotating balance shafts
  • Isolated engine mounts

Accessories

Engine Bay
  • Polished aluminum intake manifold
  • Stainless steel heat shields
  • High-performance air filter
Cooling System
  • High-capacity radiator
  • Auxiliary transmission cooler
  • Engine oil cooler
Ignition System
  • High-output ignition coils
  • Performance spark plug wires
  • Ignition control module

Maintenance

Service interval
  • Oil change every 5,000 miles (8,000 km)
  • Air filter replacement every 15,000 miles (24,000 km)
  • Spark plug replacement every 60,000 miles (96,000 km)
  • Timing chain inspection every 100,000 miles (160,000 km)
  • Coolant flush every 30,000 miles (48,000 km)
Maintenance Notes
  • Use only synthetic 5W-30 oil
  • Replace engine air filter with OEM part
  • Inspect VVEL system during major services

Warranty

Basic
Miles: 60,000 miles
Years: 4 years
Coverage: Bumper-to-bumper
Powertrain
Miles: 100,000 miles
Years: 6 years
Coverage: Engine, transmission, drivetrain
Emissions
Miles: 80,000 miles
Years: 8 years
Coverage: Catalytic converter, ECU, sensors
Corrosion
Miles: Unlimited
Years: 7 years
Coverage: Perforation from rust

Production Details

Manufacturer
Infiniti Motor Company
Manufacturing Process
  • Precision casting of aluminum components
  • CNC machining of cylinder heads
  • Automated assembly line
  • Laser-guided quality control
Quality Control
Engine Testing: 100% dyno testing before installation
Leak Checks: Pressure testing for oil and coolant systems
Tolerance Checks: Laser measurement of critical components
Sustainability Practices
  • Recycled aluminum in block and heads
  • Low VOC paint for engine components
  • Energy-efficient manufacturing processes
Production Metrics
Units Produced: Estimated 50,000 annually
Production Rate: 120 engines per day
Defect Rate: Less than 0.1%

Service Information for 5.6l v8 engine Service

Maintenance and service requirements specific to this component

5,000 miles
6 months
  • Oil and filter change
  • Inspect engine air filter
  • Check coolant level and condition
  • Inspect belts and hoses
  • Check for leaks

Use only synthetic 5W-30 oil

15,000 miles
12 months
  • Replace engine air filter
  • Inspect spark plugs
  • Check ignition system
  • Inspect engine mounts
  • Test battery and charging system

Replace air filter with OEM part

60,000 miles
60 months
  • Replace spark plugs
  • Inspect timing chain
  • Replace coolant
  • Inspect VVEL system
  • Perform compression test

Major service requiring specialized tools

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 5.6L V8 engine compatible with other Infiniti models?

The 5.6L V8 engine is specifically designed for the 2014-Present Infiniti Q70 and is not officially compatible with other Infiniti models. This engine features advanced technologies like Direct Injection Gasoline (DIG) and Variable Valve Event & Lift (VVEL), which are optimized for the Q70's performance and drivetrain. Always consult with a certified Infiniti technician before attempting to use this engine in other vehicles.

Q2

What are the maintenance requirements for the 5.6L V8 engine?

The 5.6L V8 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000 miles, air filter replacement every 15,000 miles, spark plug inspection every 30,000 miles, and timing belt replacement every 60,000 miles. Additionally, coolant and transmission fluid should be checked and replaced as per the manufacturer's recommendations. Adhering to this schedule helps maintain engine efficiency and longevity.

Q3

How do I install or replace the 5.6L V8 engine in my Infiniti Q70?

Replacing the 5.6L V8 engine in your Infiniti Q70 is a complex process that should be performed by a certified technician. Steps include disconnecting the battery, draining fluids, removing the old engine, and installing the new one. Proper alignment of engine mounts, reconnection of electrical systems, and testing are crucial. Always use genuine Infiniti parts and follow the service manual for detailed instructions.

Q4

What should I do if my 5.6L V8 engine is not performing as expected?

If your 5.6L V8 engine is underperforming, start by checking for common issues like clogged air filters, low oil levels, or faulty spark plugs. Use an OBD-II scanner to identify error codes and refer to the service manual for troubleshooting. If the problem persists, consult a certified Infiniti technician for a thorough diagnostic and repair.

Q5

How can I optimize the performance of my 5.6L V8 engine?

To optimize your 5.6L V8 engine's performance, use high-quality fuel and synthetic oil. Regularly clean the throttle body, replace air filters, and ensure proper tire inflation. Consider upgrading the exhaust system and using performance tuning software. Always follow the manufacturer's maintenance schedule and avoid aggressive driving to prolong engine life.

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 Q70 5.6L V8 Engine Service Manual

Coming Soon

This manual provides detailed instructions for servicing and maintaining the 5.6L V8 engine in the Infiniti Q70. It includes step-by-step procedures, diagrams, and troubleshooting tips.

Technical Service Bulletin for 5.6L V8 Engine Updates

Coming Soon

This bulletin outlines recent updates and fixes for the 5.6L V8 engine, including software upgrades and part replacements to enhance performance and reliability.

Infiniti Q70 Parts and Accessories Catalog

Coming Soon

This catalog lists all genuine parts and accessories available for the Infiniti Q70, including engine components, ensuring compatibility and optimal performance.

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Technical Information
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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