Infiniti M45 2006-2010 4.5L V8 Engine Specifications
Explore the detailed technical specifications of the 4.5L V8 engine in the 2006-2010 Infiniti M45. Learn about horsepower, torque, fuel system, and more for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 4.5L V8 engine used in the 2006-2010 Infiniti M45. It includes sections on engine performance, design, and maintenance, along with a quick reference guide for key specifications. Use the search and navigation instructions to efficiently find the information you need.
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Key Specifications
Displacement
4.5L
Horsepower
335 hp
Torque
340 lb-ft
Compression Ratio
10.5:1
Fuel System
Sequential multi-port fuel injection
Available Specifications
Engine Performance
This section covers the performance metrics of the 4.5L V8 engine, including horsepower, torque, and acceleration. It also provides details on fuel efficiency and emissions.
Engine Performance
This section covers the performance metrics of the 4.5L V8 engine, including horsepower, torque, and acceleration. It also provides details on fuel efficiency and emissions.
Horsepower and Torque
- Maximum horsepower: 335 hp @ 6400 rpm
- Maximum torque: 340 lb-ft @ 4000 rpm
- Redline: 6800 rpm
- Engine response: Quick throttle response
Acceleration and Speed
- 0-60 mph: 5.3 seconds
- Top speed: Electronically limited to 155 mph
- Quarter-mile time: 13.7 seconds
- Acceleration feel: Smooth and linear
Engine Design
This section delves into the design features of the 4.5L V8 engine, including its architecture, materials, and technological advancements.
Engine Design
This section delves into the design features of the 4.5L V8 engine, including its architecture, materials, and technological advancements.
Architecture
- Engine type: Naturally aspirated V8
- Displacement: 4.5 liters (4494 cc)
- Cylinder configuration: 90-degree V8
- Valvetrain: DOHC, 4 valves per cylinder
Materials and Construction
- Block material: Aluminum
- Cylinder head material: Aluminum
- Pistons: Forged aluminum
- Crankshaft: Forged steel
Maintenance and Reliability
This section provides information on the maintenance requirements and reliability of the 4.5L V8 engine, including service intervals and common issues.
Maintenance and Reliability
This section provides information on the maintenance requirements and reliability of the 4.5L V8 engine, including service intervals and common issues.
Service Intervals
- Oil change interval: Every 5,000 miles
- Spark plug replacement: Every 60,000 miles
- Timing chain: Non-replacement (lifetime)
- Coolant flush: Every 30,000 miles
Common Issues
- Oil leaks: Rare but possible
- Timing chain noise: Uncommon
- Throttle body issues: Rare
- Engine mounts: May wear over time
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Engine Specifications
Overview
- Type
- V8
- Configuration
- 90-degree V
- Displacement
- 4.5L
- Material
- Aluminum block and heads
- Location
- Front longitudinal
- Aspiration
- Naturally aspirated
Dimensions
- Length
- 29.5 inches (749 mm)
- Width
- 27.6 inches (701 mm)
- Height
- 26.8 inches (681 mm)
- Weight
- 441 lbs (200 kg)
- Bore
- 3.78 inches (96 mm)
- Stroke
- 3.19 inches (81 mm)
- Compression Ratio
- 10.5:1
Materials
- Engine Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Performance
-
- 325 horsepower at 6400 rpm
- 336 lb-ft torque at 4000 rpm
- Redline at 7000 rpm
- Dual overhead camshafts
- Fuel System
-
- Sequential multi-port fuel injection
- Electronic throttle control
- Premium fuel recommended
- Cooling
-
- Liquid-cooled
- High-capacity radiator
- Dual electric fans
- Ignition
-
- Coil-on-plug ignition
- Direct fire ignition system
- Knock control system
- Emissions
-
- LEV2 compliant
- Integrated exhaust manifolds
- Catalytic converters
Safety Features
- Engine Protection
-
- Oil pressure warning
- Coolant temperature warning
- Low oil level sensor
- Overheat Protection
-
- High-temperature cutoff
- Coolant level sensor
Comfort Features
- Noise Reduction
-
- Hydraulic engine mounts
- Sound insulation
- Vibration Control
-
- Balanced crankshaft
- Counter-rotating balance shafts
Accessories
- Belt Drive
-
- Serpentine belt
- Automatic tensioner
- Idler pulleys
- Engine Management
-
- ECU
- OBD-II port
- Engine control sensors
- Lubrication
-
- Oil filter
- Oil cooler
- Oil pump
Maintenance
- Service interval
- Every 7,500 miles or 6 months
- Service Items
-
- Oil and filter change
- Inspect belts and hoses
- Check coolant level
- Inspect spark plugs
- Check engine mounts
- Maintenance Notes
- Use synthetic 5W-30 oil for optimal performance
Warranty
- Basic
- Years: 4Miles: 60000Coverage: Bumper-to-bumper
- Powertrain
- Years: 6Miles: 70000Coverage: Engine and transmission
- Corrosion
- Years: 7Miles: UnlimitedCoverage: Perforation only
- Roadside Assistance
- Years: 4Miles: 60000Coverage: 24/7 assistance
Production Details
- Manufacturer
- Nissan
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- Engine Testing: Dyno testingLeak Testing: Air and coolantFinal Inspection: Visual and diagnostic
- Sustainability Practices
-
- Recycled aluminum
- Low-emission manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Year: 15000Production Time: 12 hours per engineDefect Rate: 0.1%
Service Information for 4.5l v8 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect belts and hoses
- Check coolant level
- Inspect spark plugs
- Check engine mounts
Use synthetic 5W-30 oil for optimal performance
- Replace air filter
- Inspect fuel system
- Check ignition system
- Inspect exhaust system
- Test engine performance
Ensure all connections are secure
- Replace timing belt
- Replace water pump
- Inspect and replace seals
- Perform compression test
- Clean fuel injectors
Critical to replace timing belt to avoid engine damage
Common Questions
Find answers to common questions about torque specifications
Q1 What vehicles is the 4.5L V8 engine compatible with?
What vehicles is the 4.5L V8 engine compatible with?
The 4.5L V8 engine is specifically designed for the 2006-2010 Infiniti M45. It is not compatible with other vehicle models or years due to unique mounting points, electrical systems, and performance specifications tailored for the M45. Always verify compatibility with your vehicle’s VIN and consult a professional before attempting any engine swaps or modifications.
Q2 What are the maintenance requirements for the 4.5L V8 engine?
What are the maintenance requirements for the 4.5L V8 engine?
The 4.5L V8 engine requires regular maintenance, including oil changes every 5,000 miles, air filter replacements every 15,000 miles, and spark plug changes every 60,000 miles. Additionally, inspect the timing belt, coolant system, and fuel injectors annually. Adhering to the manufacturer’s maintenance schedule ensures optimal performance and longevity of the engine.
Q3 How do I replace the 4.5L V8 engine in my Infiniti M45?
How do I replace the 4.5L V8 engine in my Infiniti M45?
Replacing the 4.5L V8 engine involves removing the old engine by disconnecting the battery, draining fluids, and detaching electrical connections, mounts, and the exhaust system. Install the new engine by reversing the process, ensuring all connections are secure. Use a torque wrench for mounting bolts and refill fluids. It’s recommended to consult a professional mechanic for this complex task.
Q4 What should I do if my 4.5L V8 engine is overheating?
What should I do if my 4.5L V8 engine is overheating?
If your 4.5L V8 engine is overheating, first check the coolant level and inspect for leaks. Ensure the radiator and cooling fans are functioning properly. If the issue persists, inspect the thermostat, water pump, and hoses for damage. Avoid driving the vehicle until the problem is resolved to prevent severe engine damage.
Q5 How can I optimize the performance of my 4.5L V8 engine?
How can I optimize the performance of my 4.5L V8 engine?
To optimize the 4.5L V8 engine’s performance, use high-quality synthetic oil, ensure proper tire inflation, and keep the air intake system clean. Consider upgrading the exhaust system for better airflow and using premium fuel. Regular tuning and timely maintenance also contribute to improved horsepower, torque, and fuel efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2006-2010 Infiniti M45 Service Manual
Coming SoonDetailed service manual covering all aspects of the 4.5L V8 engine, including maintenance, repairs, and troubleshooting procedures.
Technical Service Bulletin: Engine Performance Update
Coming SoonTSB addressing common engine performance issues and recommended updates for the 4.5L V8 engine in the Infiniti M45.
Infiniti M45 Parts and Accessories Catalog
Coming SoonComprehensive catalog listing OEM and aftermarket parts for the 2006-2010 Infiniti M45, including engine components.
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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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