Acura NSX 1990-2005 3.2L Engine Specifications
Detailed technical specifications and documentation for the 3.2L C32B V6 engine in the 1990-2005 Acura NSX. Includes performance metrics, maintenance guidelines, and component-specific details for enthusiasts and technicians.
3.2L Engine Specifications Overview Specifications
This document provides a comprehensive overview of the 3.2L engine specifications for the 1990-2005 Acura NSX. It includes detailed technical information, performance metrics, and maintenance requirements. Use this guide to understand the engine's capabilities, components, and operational parameters. Navigate through the sections to find specific information or use the quick reference section for key specifications.
How to Use
To search for specific information, use the search functionality by entering keywords related to the engine specifications. For example, type 'horsepower' or 'torque' to find relevant details.
Navigate through the sections by scrolling or using the section titles. Each section is divided into subsections with detailed technical points. Use the quick reference section for a summary of key specifications.
Key Specifications
Displacement
3.2L (3175 cc)
Horsepower
290 HP @ 7,100 rpm
Torque
224 lb-ft @ 5,300 rpm
Redline
7,200 rpm
Fuel Capacity
18.5 gallons
Available Specifications
Engine Overview
This section provides a general overview of the 3.2L engine, including its type, configuration, and key features. It serves as an introduction to the engine's design and capabilities.
Engine Overview
This section provides a general overview of the 3.2L engine, including its type, configuration, and key features. It serves as an introduction to the engine's design and capabilities.
Engine Type and Configuration
- 3.2L V6 engine
- DOHC (Dual Overhead Camshaft) design
- 24 valves with VTEC (Variable Valve Timing and Lift Electronic Control)
- Aluminum alloy block and cylinder heads
- Dry-sump lubrication system
Engine Management
- Electronic fuel injection system
- Programmed Fuel Injection (PGM-FI)
- Knock sensor for optimal fuel combustion
- Cruise control integrated with engine management
Performance Specifications
This section details the performance metrics of the 3.2L engine, including horsepower, torque, and redline. It also covers fuel efficiency and acceleration capabilities.
Performance Specifications
This section details the performance metrics of the 3.2L engine, including horsepower, torque, and redline. It also covers fuel efficiency and acceleration capabilities.
Power and Torque
- Maximum horsepower: 290 HP at 7,100 rpm
- Maximum torque: 224 lb-ft at 5,300 rpm
- Redline: 7,200 rpm
- Power-to-weight ratio: 8.0 lb/hp
Fuel Efficiency
- EPA estimated mileage: 17 mpg city, 23 mpg highway
- Fuel capacity: 18.5 gallons
- Recommended fuel: Premium unleaded gasoline (91 octane or higher)
Technical Features
This section highlights the advanced technical features of the 3.2L engine, including cooling systems, emissions control, and drivetrain components.
Technical Features
This section highlights the advanced technical features of the 3.2L engine, including cooling systems, emissions control, and drivetrain components.
Cooling and Lubrication
- Dual radiator cooling system
- Electric cooling fans for improved efficiency
- Dry-sump lubrication system with dual oil pumps
- Oil cooler integrated with the engine
Emissions Control
- Catalytic converter with three-way catalyst
- Electronic fuel injection with oxygen sensor
- Evaporative emissions control system
- Complies with EPA and CARB standards
Maintenance Requirements
This section outlines the recommended maintenance schedule and procedures for the 3.2L engine, ensuring optimal performance and longevity.
Maintenance Requirements
This section outlines the recommended maintenance schedule and procedures for the 3.2L engine, ensuring optimal performance and longevity.
Routine Maintenance
- Oil change interval: every 7,500 miles
- Spark plug replacement: every 30,000 miles
- Timing belt inspection: every 60,000 miles
- Air filter replacement: every 15,000 miles
Specialized Maintenance
- Valve clearance adjustment: every 30,000 miles
- Fuel injector cleaning: every 60,000 miles
- Coolant replacement: every 90,000 miles
- Drive belt replacement: every 90,000 miles
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Engine Specifications
Overview
- Type
- V6
- Configuration
- DOHC (Dual Overhead Camshaft)
- Platform
- Transverse layout
- Material
- Aluminum alloy block and cylinder head
- Location
- Mid-mounted
Dimensions
- Displacement
- 3.2 liters (3179 cc)
- Cylinder-Bore
- 90 mm (3.54 in)
- Stroke
- 84 mm (3.31 in)
- Length
- 30.3 in (770 mm)
- Width
- 30.7 in (780 mm)
- Height
- 28.3 in (719 mm)
- Dry-Weight
- 259 lbs (117.5 kg)
Materials
- Engine-Block
- High-strength aluminum alloy
- Cylinder-Head
- Aluminum alloy with integrated camshaft
- Pistons
- Forged aluminum alloy
- Crankshaft
- Forged steel
- Camshaft
- Steel alloy
- Valves
- Titanium alloy
Features
- Engine-Management
-
- Programmed Fuel Injection (PGM-FI)
- Variable Valve Timing and Lift Electronic Control (VTEC)
- Electronic Throttle Control
- Knock sensors
- Exhaust gas recirculation (EGR)
- Performance
-
- Dual overhead camshafts
- Four valves per cylinder
- Forged connecting rods
- Steel timing chains
- Hollow camshafts
- Cooling-System
-
- Water-cooled
- Aluminum radiator
- Dual cooling fans
- Thermostat-controlled
- Coolant reservoir with level sensor
- Exhaust-System
-
- Stainless steel exhaust manifold
- High-flow catalytic converter
- Dual exhaust pipes
- Muffler with internal resonator
- Heat shields
- Lubrication
-
- Wet-sump system
- Electric oil pump
- Oil cooler
- Oil level sensor
- Synthetic oil recommended
Safety Features
- Airbags
-
- Dual front airbags
- Side airbags (later models)
- Inflatable rollover protection
- Braking
-
- Anti-lock braking system (ABS)
- Electronic brake force distribution (EBD)
- Emergency brake assist
- Structural
-
- Reinforced space frame
- Impact-absorbing crumple zones
- Passenger protection cell
- Safety-Restraints
-
- 3-point seat belts with pretensioners
- Seat belt force limiters
- Passenger seat belt reminder
Comfort Features
- interior
-
- Climate control system
- Automatic temperature control
- Cruise control
- Power windows
- Power door locks
- Seating
-
- Heated seats
- Adjustable lumbar support
- Leather upholstery
- Driver seat memory
- infotainment
-
- Premium sound system
- CD player
- Cassette player (early models)
- Auxiliary input (later models)
- Convenience
-
- Remote keyless entry
- Engine immobilizer
- Trunk release
- Steering wheel controls
Accessories
- Engine-Accessories
-
- Engine cover
- Oil filler cap
- Timing chain tensioner
- Spark plug wires
- Oil dipstick
- Maintenance-Accessories
-
- Service manual
- Tool kit
- Wheel chocks
- Jack and jack stands
- Torque wrench
- Performance-Accessories
-
- High-performance air filter
- Aftermarket exhaust systems
- Engine tuning software
- Lightweight pulleys
- Performance spark plugs
Maintenance
- Service-interval
-
- Oil change every 5,000 miles
- Tire rotation every 7,500 miles
- Brake fluid change every 30,000 miles
- Spark plug replacement every 60,000 miles
- Timing belt replacement at 90,000 miles
- Maintenance-Notes
- Regular maintenance recommended by certified Acura technicians. Use genuine Acura parts for replacements.
Warranty
- Basic-Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Bumper-to-bumper
- Powertrain-Warranty
- Miles: 60,000 milesYears: 5 yearsCoverage: Drivetrain components
- Corrosion-Warranty
- Miles: 60,000 milesYears: 5 yearsCoverage: Perforation of body panels
- Accessories-Warranty
- Miles: 36,000 milesYears: 3 yearsCoverage: Dealer-installed accessories
Production Details
- Manufacturer
- Honda Motor Co., Ltd.
- Manufacturing-Process
-
- CNC machining
- Forging
- Casting
- Heat treatment
- Precision assembly
- Quality-Control
- inspection: Final assembly line inspectionTesting: Dyno testing for power outputCertification: Compliance with emissions standards
- Sustainability
- Recyclable materials used in engine components. Compliant with CARB emissions standards.
- Production-Metrics
- Production-Years: 1990-2005Units-Produced: Over 18,000 unitsAssembly-Line: Takahashi Plant, Tochigi, Japan
Service Information for 3.2l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Tire pressure check and adjustment
- Brake pad inspection
- Belts and hoses inspection
- Battery terminals cleaning
Recommended service interval for normal driving conditions.
- Air filter replacement
- Spark plug gap inspection
- Cabin air filter replacement
- Suspension system inspection
- Steering system inspection
Intermediate service interval for moderate driving conditions.
- Timing belt inspection
- Water pump inspection
- Drive belts replacement
- Fuel system cleaning
- Exhaust system inspection
Major service interval. Special tools required for timing belt inspection.
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower and torque output of the 3.2L engine in the Acura NSX?
What is the horsepower and torque output of the 3.2L engine in the Acura NSX?
The 3.2L C32B V6 engine in the Acura NSX produces 290 horsepower at 7,100 rpm and 224 lb-ft of torque at 5,500 rpm. This engine features a DOHC design with VTEC (Variable Valve Timing and Lift Electronic Control) for optimized performance.
Q2 What is the recommended oil type and capacity for the 3.2L engine?
What is the recommended oil type and capacity for the 3.2L engine?
The 3.2L engine requires 5.5 quarts (5.2 liters) of 10W-30 synthetic oil. Always use high-quality synthetic oil that meets or exceeds API SN or ILSAC GF-5 standards for optimal engine performance and longevity.
Q3 What is the compression ratio of the 3.2L engine?
What is the compression ratio of the 3.2L engine?
The 3.2L C32B engine has a compression ratio of 10.2:1. This high compression ratio contributes to the engine's efficiency and power output.
Q4 What is the recommended service interval for the timing belt on the 3.2L engine?
What is the recommended service interval for the timing belt on the 3.2L engine?
The timing belt on the 3.2L engine should be replaced every 90,000 miles or 7 years, whichever comes first. Failure to replace the timing belt can result in severe engine damage.
Q5 What type of fuel should be used in the 3.2L engine?
What type of fuel should be used in the 3.2L engine?
The 3.2L engine is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel can result in reduced performance and potential engine knocking.
Q6 What is the firing order for the 3.2L engine?
What is the firing order for the 3.2L engine?
The firing order for the 3.2L C32B engine is 1-4-2-5-3-6. This sequence ensures smooth engine operation and balanced power delivery.
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 3.2L Engine Service Manual
Coming SoonOfficial service manual for the 3.2L C32B engine, covering maintenance, repair, and troubleshooting procedures.
Timing Belt Replacement Guide for 3.2L Engine
Coming SoonStep-by-step guide for replacing the timing belt on the 3.2L engine, including torque specifications and safety precautions.
Acura NSX 3.2L Engine Performance Tuning
Coming SoonTechnical guide on performance tuning options for the 3.2L engine, including ECU remapping and aftermarket parts.
Oil Change and Maintenance Schedule for 3.2L Engine
Coming SoonDetailed maintenance schedule and oil change procedure for the 3.2L engine, ensuring optimal performance and longevity.
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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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