Infiniti Q45 1990-1996 Suspension Specifications
Explore detailed suspension specifications for the 1990-1996 Infiniti Q45, including torque values, alignment settings, and component details. Ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 1990-1996 Infiniti Q45. It is designed to assist enthusiasts, mechanics, and researchers in understanding the suspension components, configurations, and performance characteristics. Use the search and navigation instructions to quickly locate specific details or browse through the sections for a comprehensive understanding of the suspension system.
How to Use
Use the search functionality to find specific terms or components within the document. Enter keywords like 'shock absorbers' or 'spring rates' to quickly locate relevant information.
Navigate through the document using the section titles and subsections. Each section is organized by major suspension components, with detailed points listed under each subsection for easy reference.
Key Specifications
Front Suspension Type
Double-Wishbone
Rear Suspension Type
Multi-Link
Front Spring Rate
2.8 kg/mm
Rear Spring Rate
3.2 kg/mm
Anti-Roll Bars
Front and Rear
Available Specifications
Front Suspension
The front suspension of the 1990-1996 Infiniti Q45 is designed for a balance of comfort and performance. It features a double-wishbone setup with advanced components to ensure precise handling and ride quality.
Front Suspension
The front suspension of the 1990-1996 Infiniti Q45 is designed for a balance of comfort and performance. It features a double-wishbone setup with advanced components to ensure precise handling and ride quality.
Double-Wishbone Design
- Independent double-wishbone configuration
- Upper and lower control arms for stability
- Coil springs integrated with shock absorbers
- Anti-roll bar for reduced body roll
- Rubber bushings for noise and vibration damping
- Aluminum components for reduced weight
Shock Absorbers
- Gas-charged shock absorbers
- Adjustable damping for performance variants
- Designed for long-term durability
- Sealed units to prevent fluid leakage
- Compatible with aftermarket upgrades
Rear Suspension
The rear suspension system complements the front setup, providing stability and comfort. It utilizes a multi-link design to optimize handling and ride quality.
Rear Suspension
The rear suspension system complements the front setup, providing stability and comfort. It utilizes a multi-link design to optimize handling and ride quality.
Multi-Link Configuration
- Independent multi-link suspension
- Trailing arms for lateral stability
- Coil springs paired with shock absorbers
- Anti-roll bar for improved cornering
- Rubber bushings for noise reduction
- Lightweight materials for enhanced performance
Shock Absorbers
- Gas-charged shock absorbers
- Non-adjustable damping for standard models
- High-quality seals for durability
- Designed for smooth ride quality
- Compatible with aftermarket upgrades
Suspension Tuning
The suspension tuning of the Infiniti Q45 is optimized for a balance of comfort and sportiness. This section covers key aspects of the tuning process and its impact on performance.
Suspension Tuning
The suspension tuning of the Infiniti Q45 is optimized for a balance of comfort and sportiness. This section covers key aspects of the tuning process and its impact on performance.
Spring Rates
- Front spring rate: 2.8 kg/mm
- Rear spring rate: 3.2 kg/mm
- Progressive spring design for comfort
- Stiffer springs for performance variants
- Engineered for optimal weight distribution
Damping Characteristics
- Front damping coefficient: 0.4 Ns/mm
- Rear damping coefficient: 0.5 Ns/mm
- Tuned for minimal body roll
- Optimized for high-speed stability
- Adjustable damping on performance models
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Component Specifications
Overview
- Type
- Independent multi-link suspension
- Configuration
- Front and rear independent
- Platform
- FM (Front Midship) platform
- Material
- High-strength steel and aluminum
- Location
- Front and rear axles
Dimensions
- Front Track Width
- 60.2 in (1529 mm)
- Rear Track Width
- 60.0 in (1524 mm)
- Wheelbase
- 113.4 in (2880 mm)
- Front Spring Length
- 14.5 in (368 mm)
- Rear Spring Length
- 15.2 in (386 mm)
- Shock ABSorber Travel
- 5.9 in (150 mm) front, 6.3 in (160 mm) rear
- Ride Height
- 6.1 in (155 mm)
Materials
- Control Arms
- Forged aluminum
- Coil Springs
- High-tensile steel
- Shock ABSorbers
- Steel with hydraulic fluid
- Bushings
- Rubber and polyurethane
- Stabilizer Bar
- Hollow steel
Features
- Damping
-
- Hydraulic shock absorbers
- Twin-tube design
- Variable damping rates
- Temperature compensation
- Stability
-
- Front and rear stabilizer bars
- Anti-roll system
- Dynamic weight distribution
- Precision alignment
- Adjustability
-
- Ride height adjustment
- Camber adjustment
- Toe adjustment
- Caster adjustment
- Durability
-
- Corrosion-resistant coatings
- Reinforced mounting points
- Sealed bearings
- High-cycle fatigue resistance
- Performance
-
- Low unsprung weight
- Optimized geometry
- Enhanced cornering stability
- Improved road feedback
Safety Features
- Structural integrity
-
- Crash-resistant design
- Reinforced subframe
- High-strength mounting points
- Stability Control
-
- Integrated with ABS
- Electronic stability program
- Traction control system
- Failure Protection
-
- Redundant mounting
- Fail-safe bushings
- Corrosion-resistant materials
Comfort Features
- Noise Reduction
-
- Isolated subframe mounts
- Acoustic dampening
- Vibration-resistant bushings
- Ride Quality
-
- Progressive spring rates
- Hydraulic rebound control
- Smooth transition damping
- Handling
-
- Precision steering feedback
- Balanced weight distribution
- Responsive cornering
- Adjustability
-
- Customizable ride height
- Tuning for load capacity
- Adaptive damping options
Accessories
- Upgrades
-
- Performance coilovers
- Adjustable sway bars
- Polyurethane bushings
- Strut tower braces
- Tools
-
- Alignment kits
- Spring compressors
- Torque wrenches
- Bushing press
- Maintenance
-
- Lubrication kits
- Replacement bushings
- Shock absorber rebuild kits
- Alignment shims
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect bushings and mounts
- Check shock absorber performance
- Lubricate pivot points
- Inspect alignment
- Test stabilizer bar links
- Verify ride height
- Maintenance Notes
- Regular alignment checks recommended for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Suspension components
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Rust perforation
- Emissions
- Miles: 80,000Years: 8Coverage: Emission-related suspension parts
Production Details
- Manufacturer
- Infiniti (Nissan Motor Co.)
- Manufacturing Process
-
- Precision forging
- Robotic welding
- CNC machining
- Heat treatment
- Quality Control
- Testing: Fatigue testing, Corrosion resistance testing, Dynamic load testingStandards: ISO 9001, JIS D 0101, SAE J2570
- Sustainability Practices
-
- Recycled materials
- Low-emission coatings
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 50,000 unitsDefect Rate: 0.02%Recycling Rate: 95%
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect bushings and mounts
- Check shock absorber performance
- Lubricate pivot points
- Inspect alignment
- Test stabilizer bar links
Alignment checks are critical for optimal handling.
- Replace worn bushings
- Inspect and replace shock absorbers if needed
- Verify subframe integrity
- Check for corrosion
- Re-torque all suspension bolts
Use factory-recommended torque specifications.
- Overhaul suspension system
- Replace all bushings and mounts
- Inspect and replace coil springs if needed
- Perform full alignment
- Test all safety-critical components
Major service requires specialized tools and expertise.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the compatibility specifications for the 1990-1996 Infiniti Q45 suspension system?
What are the compatibility specifications for the 1990-1996 Infiniti Q45 suspension system?
The 1990-1996 Infiniti Q45 suspension system is compatible with specific OEM and aftermarket parts designed for this model range. Key components include struts, shocks, springs, and control arms. Ensure parts match the vehicle's VIN and trim level for proper fitment. Aftermarket options may require additional adjustments. Always verify compatibility with the manufacturer or supplier before purchase.
Q2 What are the maintenance requirements for the Infiniti Q45 suspension system?
What are the maintenance requirements for the Infiniti Q45 suspension system?
Regular maintenance for the Infiniti Q45 suspension includes inspecting struts, shocks, and bushings every 30,000 miles. Replace worn components promptly to avoid uneven tire wear or handling issues. Lubricate suspension joints annually and check alignment after any significant impact. Follow the manufacturer's recommended service intervals for optimal performance and longevity.
Q3 How do I replace the suspension struts on a 1990-1996 Infiniti Q45?
How do I replace the suspension struts on a 1990-1996 Infiniti Q45?
To replace the suspension struts, first, safely lift the vehicle and remove the wheels. Disconnect the sway bar link and brake line bracket. Unbolt the strut assembly from the steering knuckle and remove it from the vehicle. Install the new strut, ensuring proper alignment of all components. Reassemble in reverse order and perform a wheel alignment after installation.
Q4 What are common troubleshooting steps for suspension issues in the Infiniti Q45?
What are common troubleshooting steps for suspension issues in the Infiniti Q45?
Common suspension issues include noise, uneven ride height, or poor handling. Inspect for worn struts, damaged bushings, or loose components. Check for fluid leaks from shocks or struts. Test the suspension by bouncing each corner of the vehicle; excessive movement indicates worn parts. Address alignment issues and ensure tires are properly inflated for optimal performance.
Q5 How can I optimize the performance of my Infiniti Q45 suspension system?
How can I optimize the performance of my Infiniti Q45 suspension system?
To optimize suspension performance, upgrade to high-performance shocks and struts designed for the Q45. Lowering springs can improve handling, but ensure proper alignment. Regularly inspect and replace worn bushings and mounts. Use quality tires and maintain proper tire pressure. Consider adding a strut tower brace for enhanced rigidity and cornering stability.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1990-1996 Infiniti Q45 Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair, and troubleshooting for the 1990-1996 Infiniti Q45.
Infiniti Q45 Suspension Technical Bulletin
Coming SoonTechnical service bulletin addressing common suspension issues and recommended solutions for the 1990-1996 Q45.
Infiniti Q45 Suspension Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket suspension parts for the 1990-1996 Infiniti Q45, including part numbers and compatibility information.
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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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