Infiniti Q70 2014-present 3.7L V6 Engine Engine Specifications
Infiniti Q70 2014-present

Infiniti Q70 2014-present 3.7L V6 Engine Specifications

Explore the detailed 3.7L V6 engine specifications for the 2014-Present Infiniti Q70. Learn about horsepower, torque, fuel efficiency, and advanced engine features. Essential for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.7L V6 engine used in the 2014-Present Infiniti Q70. It is designed to help users understand the engine's features, performance, and maintenance requirements. The document is organized into sections for easy navigation, with subsections breaking down specific aspects of the engine. Use the search and navigation instructions to quickly find the information you need.

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Key Specifications

Displacement

3.7 liters

Horsepower

330 hp

Torque

270 lb-ft

Fuel Economy

23 mpg combined

Acceleration

5.5 seconds (0-60 mph)

Available Specifications

Engine Performance

This section covers the performance characteristics of the 3.7L V6 engine, including horsepower, torque, and acceleration. It also includes details on how the engine enhances the driving experience of the Infiniti Q70.

Power Output
  • 330 horsepower at 7000 rpm
  • 270 lb-ft of torque at 5200 rpm
  • 0-60 mph acceleration in 5.5 seconds
  • Top speed of 155 mph
  • Responsive throttle for sporty driving
  • Smooth power delivery across the RPM range
Fuel Efficiency
  • EPA-estimated 20 mpg city
  • EPA-estimated 29 mpg highway
  • Combined fuel economy of 23 mpg
  • Direct injection technology for better efficiency
  • Eco mode for improved fuel savings
  • Lightweight engine components reduce fuel consumption

Engine Design

This section delves into the design and construction of the 3.7L V6 engine, highlighting its advanced engineering and materials. It also explains how the design contributes to the engine's durability and performance.

Construction
  • Aluminum block and heads for reduced weight
  • Dual overhead camshaft (DOHC) design
  • 24-valve configuration for optimal airflow
  • Forged steel crankshaft for durability
  • Low-friction piston rings for efficiency
  • Precision-engineered components for reliability
Cooling and Lubrication
  • High-capacity cooling system
  • Advanced oil pump for consistent lubrication
  • Oil cooler to maintain optimal temperature
  • Thermostat-controlled cooling for efficiency
  • Durable gaskets and seals for longevity
  • Regular maintenance intervals for peak performance

Technology and Features

This section explores the advanced technologies and features integrated into the 3.7L V6 engine. It explains how these innovations enhance performance, efficiency, and the overall driving experience.

Advanced Technologies
  • Variable Valve Event & Lift (VVEL) system
  • Direct injection for precise fuel delivery
  • Electronic throttle control for responsiveness
  • Knock sensors for optimized combustion
  • Dual-stage intake manifold for improved airflow
  • High-energy ignition system for reliable starts
Driving Enhancements
  • Smooth and quiet operation
  • Sport-tuned exhaust for a dynamic sound
  • Adaptive shift control for seamless gear changes
  • Traction control system for stability
  • Drive mode select for customized performance
  • Enhanced engine braking for control

Engine Specifications

Overview

Type
Gasoline
Configuration
V6
Displacement
3.7 liters
Aspiration
Naturally aspirated
Location
Front, longitudinal

Dimensions

Length
23.6 inches (599 mm)
Width
27.1 inches (688 mm)
Height
25.9 inches (658 mm)
Weight
375 lbs (170 kg)
Bore
95.5 mm (3.76 in)
Stroke
86 mm (3.39 in)
Compression Ratio
11.0:1

Materials

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

Features

Performance
  • 330 horsepower @ 7000 rpm
  • 270 lb-ft torque @ 5200 rpm
  • 7000 rpm redline
Fuel System
  • Direct injection
  • Variable valve timing
  • Electronic throttle control
Cooling
  • Liquid-cooled
  • High-capacity radiator
  • Electric cooling fan
Ignition
  • Coil-on-plug ignition
  • Platinum-tipped spark plugs
  • Knock control system
Emissions
  • LEV-II compliant
  • Catalytic converters
  • EGR system

Safety Features

Engine Protection
  • Low oil pressure shutdown
  • Overheat protection
  • Knock sensor system
Emissions Control
  • OBD-II diagnostics
  • Evaporative emissions system

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
  • Dual-stage intake manifold
Vibration Control
  • Balanced crankshaft
  • Hydraulic lash adjusters
  • Dual-mass flywheel

Accessories

External
  • Belt-driven alternator
  • Power steering pump
  • Air conditioning compressor
internal
  • High-pressure fuel pump
  • Oil pump
  • Water pump
Electronics
  • Engine control unit (ECU)
  • Sensors array
  • Ignition coils

Maintenance

Service interval
  • Oil change: Every 5,000 miles or 6 months
  • Air filter: Every 15,000 miles
  • Spark plugs: Every 60,000 miles
  • Timing chain: Lifetime (inspection recommended at 100,000 miles)
  • Coolant: Every 30,000 miles or 2 years
Notes
Use synthetic oil for optimal performance and longevity.

Warranty

Basic
4 years or 60,000 miles
Powertrain
6 years or 70,000 miles
Emissions
8 years or 80,000 miles
Corrosion
7 years or unlimited miles
Terms
Includes parts and labor for covered components

Production Details

Manufacturer
Nissan Motor Corporation
Manufacturing Process
  • Casting and machining of engine block
  • Assembly of internal components
  • Quality testing and calibration
Quality Control
inspections: 100% engine testing
Tolerances: Precision machining to 0.0001 inches
Certifications: ISO 9001
Sustainability Practices
  • Recycling of aluminum scrap
  • Low-emission manufacturing processes
  • Use of eco-friendly coolants and lubricants
Production Metrics
Units Per Day: 500
Defect Rate: Less than 0.1%
Energy Efficiency: 15% improvement over previous model

Service Information for 3.7l v6 engine Service

Maintenance and service requirements specific to this component

5,000
6
  • Oil and filter change
  • Inspect air filter
  • Check engine coolant level
  • Inspect drive belts
  • Check for leaks

Use only recommended synthetic oil and OEM filters

15,000
12
  • Replace engine air filter
  • Inspect spark plugs
  • Check fuel system
  • Inspect ignition system

Check for any diagnostic trouble codes

60,000
60
  • Replace spark plugs
  • Inspect timing chain
  • Replace engine coolant
  • Perform compression test

Critical to inspect timing chain for wear and proper tension

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.7L V6 engine compatible with other Infiniti models?

The 3.7L V6 engine, used in the 2014-Present Infiniti Q70, is also compatible with other Infiniti models such as the Q50, Q60, and G37, as well as certain Nissan models like the 370Z. However, compatibility depends on the vehicle's year and configuration. Always verify with the manufacturer or a certified technician to ensure proper fitment and avoid potential issues.

Q2

What are the maintenance requirements for the 3.7L V6 engine?

The 3.7L V6 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000-7,500 miles, air filter replacement every 15,000-30,000 miles, and spark plug replacement every 60,000 miles. Additionally, inspect the timing chain and coolant system periodically. Adhering to the manufacturer’s maintenance schedule is crucial for longevity.

Q3

How do I replace the 3.7L V6 engine in my Infiniti Q70?

Replacing the 3.7L V6 engine involves several steps: 1) Disconnect the battery and drain fluids. 2) Remove engine components like the intake manifold and exhaust system. 3) Detach the engine mounts and transmission. 4) Lift the engine out using a hoist. 5) Install the new engine by reversing the process. Always consult the service manual or a professional for precise instructions.

Q4

What should I do if my 3.7L V6 engine is overheating?

If your 3.7L V6 engine overheats, first check the coolant level and top it off if necessary. Inspect for leaks in the cooling system, a malfunctioning thermostat, or a faulty water pump. Ensure the radiator fan is operational. If the issue persists, seek professional diagnosis to avoid severe engine damage.

Q5

How can I optimize the performance of my 3.7L V6 engine?

To optimize performance, use high-quality synthetic oil and ensure regular maintenance. Upgrade the air intake and exhaust systems for better airflow. Consider tuning the engine control unit (ECU) for improved power and efficiency. Additionally, use premium fuel and avoid aggressive driving habits to maintain engine health.

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 3.7L V6 Engine Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the 3.7L V6 engine, including diagrams and technical specifications.

Technical Service Bulletin for 3.7L V6 Engine

Coming Soon

This bulletin highlights common issues, updates, and fixes for the 3.7L V6 engine, ensuring optimal performance and reliability.

Infiniti Q70 Parts and Accessories Guide

Coming Soon

This guide lists all available parts and accessories for the 3.7L V6 engine and the Infiniti Q70, including OEM and aftermarket options.

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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.
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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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