The Honda C32B2 is a 3,179 cc, 90 — degree V6 naturally aspirated petrol engine produced between 1996 and 2000. It features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder and Honda's PGM — FI fuel injection system. This engine was engineered for smooth, high — revving power delivery, characteristic of Honda's performance V6 engines of the era.
Fitted exclusively to the second — generation NSX (NA2), the C32B2 was designed to deliver a refined yet ex…
Production years 1996–2000 meet applicable Japanese and European emissions standards for their respective model years and markets .
The Honda C32B2 is a 3,179 cc 90-degree V6 naturally aspirated petrol engine engineered for the flagship NSX supercar (1996-2000). It combines DOHC with PGM-FI fuel injection to deliver a broad, linear powerband and a high-revving character. Designed to meet contemporary emissions standards, it balances exotic performance with Honda's renowned reliability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,179 cc | |
Fuel type | Petrol | |
Configuration | 90° V6, DOHC, 24-valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 90.0 mm × 84.0 mm | |
Power output | 280–290 PS (206–213 kW) @ 7,100 rpm | |
Torque | 305–315 Nm @ 5,500 rpm | |
Fuel system | PGM-FI Multi-point fuel injection | |
Emissions standard | Japanese 1996/1998 standards; EU equivalent | |
Compression ratio | 10.2:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven (DOHC) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 195 kg |
The Honda C32B2 was used exclusively in Honda's NA2 platform for the second-generation NSX. This engine received specific adaptations for the NSX, including a unique intake manifold, exhaust system, and ECU mapping, making it distinct from other C-series engines. All adaptations are documented in OEM technical bulletins.
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The C32B2's primary reliability risk is timing belt failure due to its interference design, with elevated incidence in high-mileage engines where maintenance is deferred. Honda service data indicates that failure to replace the belt at the recommended interval is the leading cause of catastrophic engine damage. The V6 design also makes valve adjustments more complex and costly, making adherence to the maintenance schedule critical.
Analysis derived from Honda technical bulletins (1996-2001) and specialist NSX owner surveys. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the C32B2 is exceptionally reliable long-term when properly maintained. Its all-aluminum construction and robust design are hallmarks of Honda engineering. The absolute key to longevity is replacing the timing belt at the 90,000 km interval to prevent catastrophic engine failure, as it is an interference engine.
The most common issues are timing belt failure (if not replaced on schedule), the need for periodic valve clearance adjustments, oil leaks from the valve cover gaskets, and occasional ignition coil failure. These are well-documented in Honda service manuals and NSX owner communities.
The C32B2 was used exclusively in the second-generation Honda NSX (chassis code NA2) from 1996 to 2000. It was not used in any other Honda production vehicle.
Aftermarket ECU tuning is common on the C32B2 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Fuel economy is typical for a high-performance V6 of its era. Expect around 12.0-14.0 L/100km (24-20 mpg UK) in mixed driving. Economy is significantly worse if driven aggressively to take advantage of its powerband, but is reasonable during gentle cruising.
Yes. The Honda C32B2 is an interference engine. If the timing belt fails, the pistons will collide with the open valves, causing severe internal engine damage. Replacing the timing belt at the recommended 90,000 km interval is non-negotiable.
Honda recommends using 5W-30 or 10W-30 synthetic or semi-synthetic engine oil meeting API SH/SJ or equivalent standards. Regular oil changes (every 5,000-10,000 km) are crucial for maintaining the health of the engine, especially given its performance nature.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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