Acura NSX 1990-2005 Suspension Specifications
Acura NSX 1990-2005

Acura NSX 1990-2005 Suspension Specifications

Comprehensive technical documentation for the 1990-2005 Acura NSX suspension system, including detailed specifications, alignment settings, and maintenance guidelines for optimal performance.

Updated

Suspension Specifications Overview Specifications

This document provides a comprehensive guide to the suspension specifications of the 1990-2005 Acura NSX. It includes detailed technical information, component descriptions, and key measurements to help users understand and maintain their vehicle's suspension system. Use this guide to identify components, understand suspension geometry, and perform maintenance or upgrades.

How to Use

To find specific information, use the search functionality by typing keywords related to suspension components (e.g., 'spring rate', 'damper', 'alignment') in the search bar located at the top of the document.

Navigate through the sections by clicking on the major headings (e.g., 'Front Suspension', 'Rear Suspension'). Each section contains subsections with detailed specifications and technical points organized for easy access.

Key Specifications

Front Spring Rate

3.7 kg/mm

Rear Spring Rate

3.3 kg/mm

Front Anti-Roll Bar Diameter

26mm

Rear Anti-Roll Bar Diameter

24mm

Recommended Front Camber

0.8°

Available Specifications

Front Suspension

The front suspension of the 1990-2005 Acura NSX features a double-wishbone setup designed for precise handling and stability. This section details the key components and specifications of the front suspension system.

Front Suspension Components
  • Double-wishbone suspension design
  • Aluminum alloy upper and lower control arms
  • Coil springs with integrated dampers
  • Stabilizer bar (anti-roll bar)
  • Bushings and ball joints
Front Suspension Adjustments
  • Camber adjustment via eccentric bolts
  • Toe adjustment via steering rack
  • Spring preload adjustment
  • Damper rebound adjustment (optional on certain models)
  • Anti-roll bar stiffness adjustment

Rear Suspension

The rear suspension of the 1990-2005 Acura NSX also utilizes a double-wishbone configuration, providing a balance of ride comfort and sporty handling. This section outlines the rear suspension components and specifications.

Rear Suspension Components
  • Double-wishbone suspension design
  • Aluminum alloy upper and lower control arms
  • Coil springs with integrated dampers
  • Stabilizer bar (anti-roll bar)
  • Bushings and toe control arms
Rear Suspension Adjustments
  • Toe adjustment via toe control arms
  • Camber adjustment via eccentric bolts
  • Spring preload adjustment
  • Damper rebound adjustment (optional on certain models)
  • Anti-roll bar stiffness adjustment

Suspension Geometry and Alignment

Proper suspension alignment is critical for optimal handling and tire wear. This section provides specifications for camber, toe, and caster angles, as well as ride height measurements.

Suspension Geometry Specifications
  • Front camber: 0.5° - 1.5°
  • Rear camber: 0.3° - 1.3°
  • Front toe: 0.1° - 0.3°
  • Rear toe: 0.1° - 0.3°
  • Caster angle: 6.5° - 7.5°
  • Ride height: 110mm front, 115mm rear

Component Specifications

Overview

Type
Double-wishbone independent suspension
Configuration
Front and rear double-wishbone
Platform
Acura's proprietary mid-engine platform
Material
All-aluminum suspension components
Location
Front and rear axle

Dimensions

Shock ABSorber Length
520 mm (20.47 in)
Spring Rate Front
140 N/mm (800 lb/in)
Spring Rate Rear
130 N/mm (750 lb/in)
Stabilizer Bar Diameter Front
26 mm (1.02 in)
Stabilizer Bar Diameter Rear
24 mm (0.94 in)
Suspension Travel Front
120 mm (4.72 in)
Suspension Travel Rear
100 mm (3.94 in)

Materials

Suspension Arms
Forged aluminum alloy
Shock ABSorbers
Steel with hardened rods
Stabilizer Bars
High-strength steel
Springs
High-tensile steel
Bushings
Polyurethane

Features

Handling
  • Lightweight aluminum components
  • Anti-dive and anti-squat geometry
  • Optimized suspension bushings for precise control
Ride Comfort
  • Progressive-rate coil springs
  • Hydraulic shock absorbers with internal rebound springs
  • Isolation mounts for reduced NVH
Performance
  • High-rate springs for sporty handling
  • Adjustable dampers (later models)
  • Lightweight alloy suspension components

Safety Features

Structural integrity
  • High-strength steel components
  • Redundant load paths
  • Crumple zones integrated into suspension mounting points
Corrosion Protection
  • Galvanized steel parts
  • E-coated components
  • Sealed suspension joints
Fail Safe
Component overload protection

Comfort Features

Noise insulation
  • Hydraulic bushings
  • Isolation mounts
  • Noise-dampening spring seats
Ride Quality
  • Progressive spring rates
  • Optimized damping characteristics
  • Low-friction suspension components
Stability
  • Wide track width
  • Low center of gravity
  • Anti-roll bars

Accessories

Coilover Kits
  • Adjustable ride height
  • Stiffer spring rates
  • Damping adjustment
Sway Bar Upgrades
  • Larger diameter bars
  • Adjustable stiffness
  • Hollow sway bars
Bushing Kits
  • Polyurethane bushings
  • Spherical bearings
  • Greaseable bushings

Maintenance

Service interval
  • Miles: 15,000 miles, Months: 12 months, Items: Inspect suspension components,Lubricate suspension bushings,Check for worn or loose parts,Inspect stabilizer links, Note: Replace any worn components
  • Miles: 30,000 miles, Months: 24 months, Items: Replace shock absorbers if necessary,Inspect spring condition,Check stabilizer bar bushings,Inspect suspension arms, Note: Recommended to use genuine parts
  • Miles: 60,000 miles, Months: 48 months, Items: Replace suspension bushings,Inspect and replace springs if necessary,Replace stabilizer links,Inspect tie rods, Note: Major suspension overhaul recommended
Maintenance Notes
  • Use genuine or OEM equivalent parts
  • Regularly check for corrosion
  • Avoid using harsh chemicals on suspension components

Warranty

Basic
Miles: 36,000 miles
Years: 3 years
Coverage: Full coverage for manufacturing defects
Powertrain
Miles: 70,000 miles
Years: 5 years
Coverage: Powertrain components only
Corrosion
Miles: 90,000 miles
Years: 8 years
Coverage: Perforation due to corrosion
Accessories
Miles: 18,000 miles
Years: 1 year
Coverage: Replacement parts and accessories

Production Details

Manufacturer
Name: Honda Motor Co., Ltd.
Location: Japan
Established: 1948
Manufacturing Process
  • Forging of suspension components
  • Machining and assembly
  • Quality control inspection
  • Painting and corrosion protection
Quality Control
inspection: 100% component inspection
Testing: Load testing and durability testing
Certifications: ISO 9001:2015
Sustainability Practices
Materials: Use of recyclable materials
Energy: Energy-efficient manufacturing processes
Waste: Zero-waste policy
Production Metrics
Units Per Month: 500 units
Cycle Time: 8 hours per unit
Defect Rate: Less than 1%
Efficiency: 95% production line efficiency

Service Information for suspension Service

Maintenance and service requirements specific to this component

15,000 miles
12 months
  • Inspect shock absorbers
  • Check suspension bushings
  • Inspect stabilizer links
  • Lubricate suspension components

Replace any worn components

30,000 miles
24 months
  • Replace shock absorbers if necessary
  • Inspect spring condition
  • Check stabilizer bar bushings
  • Inspect suspension arms

Recommended to use genuine parts

60,000 miles
48 months
  • Replace suspension bushings
  • Inspect and replace springs if necessary
  • Replace stabilizer links
  • Inspect tie rods

Major suspension overhaul recommended

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of suspension system does the 1990-2005 Acura NSX use?

The 1990-2005 Acura NSX features a double-wishbone suspension system on both the front and rear axles. This setup includes aluminum control arms, coil springs, gas-filled shock absorbers, and stabilizer bars. The front suspension also incorporates a compliance pivot to improve ride comfort and handling.

Q2

What is the recommended ride height for the Acura NSX?

The factory-specified ride height for the 1990-2005 Acura NSX is approximately 4.5 inches (114 mm) at the front and 4.7 inches (120 mm) at the rear, measured from the ground to the bottom edge of the rocker panel. Adjustments should be made using proper alignment tools and procedures to maintain handling characteristics.

Q3

What is the torque specification for the suspension control arm bolts?

The torque specification for the front upper control arm bolts is 47-53 lb-ft (64-72 Nm), and for the front lower control arm bolts, it is 69-75 lb-ft (93-102 Nm). Rear upper control arm bolts should be torqued to 47-53 lb-ft (64-72 Nm), and rear lower control arm bolts to 69-75 lb-ft (93-102 Nm). Always follow the manufacturer's sequence and use a calibrated torque wrench.

Q4

How often should the suspension components be inspected?

Suspension components, including bushings, ball joints, and shock absorbers, should be inspected every 15,000 miles (24,000 km) or annually, whichever comes first. Pay special attention to signs of wear, such as uneven tire wear, knocking noises, or reduced handling performance.

Q5

Can aftermarket suspension components affect the vehicle's warranty?

Yes, installing aftermarket suspension components, such as lowering springs or non-OEM shocks, may void the vehicle's warranty if they are determined to be the cause of a failure. Always consult your dealer or warranty documentation before making modifications.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Acura NSX Factory Service Manual

Coming Soon

The official service manual for the 1990-2005 Acura NSX, providing detailed suspension specifications, repair procedures, and torque values.

Suspension Alignment Guide

Coming Soon

A step-by-step guide to performing a proper suspension alignment on the Acura NSX, including recommended settings and tools.

OEM Suspension Parts Catalog

Coming Soon

A catalog of genuine Acura NSX suspension components, including part numbers and diagrams for easy identification and ordering.

Common Suspension Issues and Solutions

Coming Soon

A troubleshooting guide addressing common suspension problems in the Acura NSX, such as noise, vibration, and handling issues.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

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