Acura Integra 1985-1989 Suspension Specifications
Acura Integra 1985-1989

Acura Integra 1985-1989 Suspension Specifications

Comprehensive technical documentation for the suspension system of the 1985-1989 Acura Integra, detailing front and rear suspension components, alignment parameters, and damping characteristics.

Updated

Suspension Specifications Overview Specifications

This document provides a comprehensive overview of the suspension specifications for the 1985-1989 Acura Integra. It includes detailed technical information, key components, and performance metrics. Use this guide to understand the suspension system, identify parts, and perform maintenance or upgrades. Navigate through the sections for in-depth details or refer to the quick reference for key specifications.

How to Use

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Key Specifications

Front Suspension Type

Double-wishbone

Rear Suspension Type

Double-wishbone

Front Spring Rate

140 N/mm

Rear Spring Rate

120 N/mm

Front Stabilizer Bar Diameter

22 mm

Available Specifications

Front Suspension

The front suspension of the 1985-1989 Acura Integra features a double-wishbone setup, designed for precise handling and stability. This section details the components and specifications of the front suspension system.

Front Suspension Components
  • Double-wishbone independent suspension
  • Coil springs with integrated shock absorbers
  • Stabilizer bar for reduced body roll
  • Aluminum lower control arms
  • Hydraulic bushings for noise reduction
Spring Rates and Damping
  • Front spring rate: 140 N/mm
  • Shock absorber damping: 4-way adjustable
  • Stabilizer bar diameter: 22 mm
  • Suspension travel: 120 mm (compression), 100 mm (rebound)

Rear Suspension

The rear suspension of the 1985-1989 Acura Integra also utilizes a double-wishbone design, matching the front for balanced handling. This section covers the rear suspension components and specifications.

Rear Suspension Components
  • Double-wishbone independent suspension
  • Coil springs with separate shock absorbers
  • Stabilizer bar for enhanced stability
  • Steel upper control arms
  • Hydraulic bushings for reduced noise
Spring Rates and Damping
  • Rear spring rate: 120 N/mm
  • Shock absorber damping: 4-way adjustable
  • Stabilizer bar diameter: 20 mm
  • Suspension travel: 130 mm (compression), 90 mm (rebound)

Shock Absorbers and Springs

The shock absorbers and springs are critical components of the suspension system, providing damping and support. This section details their specifications and characteristics.

Shock Absorber Specifications
  • Type: Gas-filled, mono-tube design
  • Damping adjustment: 4-way (compression, rebound, low-speed, high-speed)
  • Front shock absorber diameter: 40 mm
  • Rear shock absorber diameter: 38 mm
Spring Specifications
  • Front spring rate: 140 N/mm
  • Rear spring rate: 120 N/mm
  • Spring material: High-tensile steel
  • Spring length: 200 mm (front), 220 mm (rear)

Anti-Roll Bars

Anti-roll bars (stabilizer bars) play a crucial role in reducing body roll during cornering. This section provides details on the anti-roll bars used in the suspension system.

Front Anti-Roll Bar
  • Diameter: 22 mm
  • Material: High-strength steel
  • Mounting: Bushing-mounted
  • Adjustability: Non-adjustable
Rear Anti-Roll Bar
  • Diameter: 20 mm
  • Material: High-strength steel
  • Mounting: Bushing-mounted
  • Adjustability: Non-adjustable

Component Specifications

Overview

Type
Independent Suspension
Configuration
Double Wishbone (Front), Trailing Arm (Rear)
Platform
Honda Compact Car Platform
Material
Steel and Rubber Components
Location
Front and Rear Axles

Dimensions

Front Spring Rate
140-160 lb/in (2450-2800 N/m)
Rear Spring Rate
120-140 lb/in (2100-2450 N/m)
Front Shock Travel
4.7 in (120 mm)
Rear Shock Travel
4.3 in (110 mm)
Front Stabilizer Bar Diameter
0.98 in (25 mm)
Rear Stabilizer Bar Diameter
0.79 in (20 mm)
Camber Angle
-1.0° to -1.5°
Toe Angle
0.10° to 0.20°

Materials

Upper Control Arm
Steel with Rubber Bushings
Lower Control Arm
Steel with Ball Joints
Stabilizer Bar
High-Strength Steel
Shock ABSorber
Steel Body with Hydraulic Damping
Coil Spring
High-Tensile Steel
Bushings
Polyurethane and Rubber

Features

Ride Comfort
  • Optimized Spring Rates
  • Hydraulic Shock Absorbers
  • Progressive Rate Coil Springs
Handling Improvements
  • Double Wishbone Geometry
  • Stabilizer Bars
  • Rigid Control Arms
Adjustability
  • Camber Adjustment
  • Toe Adjustment
  • Limited Ride Height Adjustability
Noise Reduction
  • Rubber Bushings
  • Insulated Shock Mounts
  • Damped Spring Seats
Load Capacity
  • Rated for Factory Payload
  • Reinforced Components
  • Weight Distribution Optimization
Aerodynamic Considerations
  • Low Profile Components
  • Aerodynamic Clearance

Safety Features

Structural integrity
  • Reinforced Mounting Points
  • Impact-Resistant Materials
Component Protection
  • Protective Boots for Bushings
  • Shock Absorber Guards
Load Limits
  • Factory-Specified Weight Limits
  • Component Stress Testing

Comfort Features

Noise insulation
  • Sound-Dampening Bushings
  • Vibration-Reducing Mounts
Ride Smoothness
  • Progressive Coil Springs
  • Hydraulic Damping
Adjustability
  • Limited Ride Height Adjustment
  • Camber and Toe Adjustment
Passenger Comfort
  • Tuned Suspension Geometry
  • Optimized Spring Rates

Accessories

Performance Upgrades
  • Coilover Kits
  • Sway Bar Upgrades
  • Adjustable Shocks
Replacement Parts
  • OEM Bushings
  • Aftermarket Springs
  • Shock Rebuild Kits
Suspension Tools
  • Spring Compressors
  • Ball Joint Press
  • Alignment Tools

Maintenance

Service interval
  • Miles: 15,000 miles, Months: 12 months, Items: Inspect Bushings and Shock Absorbers,Check for Wear in Control Arms,Replace if Necessary,Lubricate Moving Parts,Check Tire Alignment, Note: Essential for maintaining ride quality and handling
  • Miles: 30,000 miles, Months: 24 months, Items: Inspect Upper and Lower Control Arms,Check Stabilizer Links,Test Shock Absorber Damping,Inspect Coil Springs for Sag,Perform Wheel Alignment, Note: Critical for preventing premature wear
  • Miles: 60,000 miles, Months: 48 months, Items: Replace Shock Absorbers,Replace Coil Springs if Sagged,Replace Bushings and Ball Joints,Inspect and Replace Stabilizer Bars,Repack Wheel Bearings,Perform Full Suspension Alignment, Note: Major service to restore original performance
Maintenance Notes
  • Follow Factory-Recommended Procedures
  • Use OEM or Equivalent Parts
  • Lubricate New Parts Before Installation

Warranty

Basic Warranty
Miles: 36,000 miles
Years: 3 years
Coverage: Components and Labor
Powertrain Warranty
Miles: 60,000 miles
Years: 5 years
Coverage: Engine, Transmission, and Drivetrain
Corrosion Perforation Warranty
Miles: 60,000 miles
Years: 5 years
Coverage: Sheet Metal and Body Panels
Maintenance Warranty
Miles: 15,000 miles
Years: 1 year
Coverage: Maintenance Services

Production Details

Manufacturer
Honda Motor Co., Ltd.
Manufacturing Process
  • Robot-Welded Chassis
  • High-Strength Steel Stampings
  • Precision Machining
  • E-Coating for Corrosion Protection
  • Baked Enamel Paint
Quality Control
inspection: Dimensional and Functional Checks
Testing: Load and Stress Testing
Certification: OEM Compliance
Sustainability Practices
  • Recyclable Materials
  • Energy-Efficient Manufacturing
  • Reduced Emissions Process
Production Metrics
Units Produced: Over 250,000 units
Production Years: 1985-1989
Assembly Locations: Japan, Other Global Facilities

Service Information for 1985 1989 Acura Integra Suspension Service

Maintenance and service requirements specific to the suspension component of the 1985-1989 Acura Integra

15,000 miles
12 months
  • Inspect Suspension Bushings
  • Check Shock Absorbers for Damping
  • Examine Control Arms for Wear
  • Lubricate All Moving Parts
  • Perform Tire Alignment Check

Critical for maintaining proper suspension function and ride quality

30,000 miles
24 months
  • Replace Shock Absorbers if Necessary
  • Inspect Coil Springs for Sag
  • Check Stabilizer Bar Links
  • Inspect Upper and Lower Control Arms
  • Perform Wheel Alignment

Essential for preventing uneven tire wear and handling issues

60,000 miles
48 months
  • Replace Bushings and Ball Joints
  • Inspect and Replace Stabilizer Bars
  • Replace Coil Springs if Sagged
  • Repack Wheel Bearings
  • Perform Full Suspension System Check

Major service to ensure optimal suspension performance and safety

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the recommended torque specification for the front strut mounting nuts on a 1985-1989 Acura Integra?

The recommended torque specification for the front strut mounting nuts is 47-59 lb-ft (64-80 Nm). Ensure the vehicle is properly supported and the suspension is at normal ride height before tightening.

Q2

What is the ride height specification for the 1985-1989 Acura Integra?

The ride height for the 1985-1989 Acura Integra is measured from the ground to the lower edge of the wheel arch. The front ride height should be approximately 24.8 inches (630 mm), and the rear should be approximately 24.4 inches (620 mm). These measurements may vary slightly depending on trim level and optional equipment.

Q3

How do I check and adjust the rear suspension alignment on a 1985-1989 Acura Integra?

Rear suspension alignment on the 1985-1989 Acura Integra is non-adjustable. If alignment is out of specification, inspect for worn or damaged components such as bushings, control arms, or trailing arms. Replace any faulty parts and recheck alignment. The rear camber should be -0°30' to +0°30', and toe should be 0°00' to +0°12'.

Q4

What type of suspension system does the 1985-1989 Acura Integra use?

The 1985-1989 Acura Integra uses an independent front suspension with MacPherson struts and a rear suspension with a torsion beam axle. This setup provides a balance of handling and ride comfort, typical for compact performance vehicles of the era.

Q5

What is the recommended procedure for replacing the front strut assembly on a 1985-1989 Acura Integra?

To replace the front strut assembly, first secure the vehicle on a lift or jack stands. Remove the wheel, disconnect the brake line bracket, and detach the stabilizer bar link. Unbolt the strut from the steering knuckle and remove the upper mounting nuts inside the engine bay. Install the new strut in reverse order, ensuring all bolts are torqued to specification: strut-to-knuckle bolts at 69-86 lb-ft (93-117 Nm) and upper mounting nuts at 47-59 lb-ft (64-80 Nm).

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 Integra Suspension Service Manual

Coming Soon

Official service manual for the 1985-1989 Acura Integra, covering detailed suspension repair and maintenance procedures.

Suspension Alignment Specifications

Coming Soon

Detailed alignment specifications and adjustment procedures for the 1985-1989 Acura Integra.

Strut and Shock Absorber Replacement Guide

Coming Soon

Step-by-step guide for replacing struts and shock absorbers on the 1985-1989 Acura Integra.

Suspension Component Torque Specifications

Coming Soon

Comprehensive list of torque specifications for all suspension components on the 1985-1989 Acura Integra.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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