The Honda B18C6 is a 1,834 cc, inline‑four petrol engine produced between 1996 and 2001. It features Honda's renowned VTEC (Variable Valve Timing and Lift Electronic Control) system, dual overhead camshafts (DOHC), and a high 10.6:1 compression ratio. In European-spec Integra Type R applications, it delivered 147 kW (200 PS), with peak torque of 178 Nm, enabling thrilling high-RPM performance.
Fitted exclusively to the DC2 chassis Integra Type R for European markets, the B18C6 was engineered for track-focused agility and driver engagement. Its character is defined by strong top-end power delivery, requiring revs to access its full potential. Emissions compliance for its production period was met under Euro 2 standards through precise fuel injection and engine management.
One documented engineering focus was managing the high-RPM valvetrain stresses inherent in VTEC operation. Honda addressed this through reinforced internal components and specific lubrication requirements, as detailed in service documentation. The B18C6 represents the pinnacle of Honda's naturally aspirated B-series development for the European market.
Honda
Production years 1996–2001 meet Euro 2 standards as per VCA UK Type Approval for applicable Integra Type R models.
The Honda B18C6 is a 1,834 cc inline‑four naturally aspirated petrol engine engineered for the Integra Type R (1996-2001). It combines DOHC VTEC technology with a high compression ratio to deliver exhilarating high-RPM power and driver engagement. Designed to meet Euro 2 emissions standards, it prioritizes performance character over low-end torque.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,834 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 81.0 mm × 89.0 mm | |
| Power output | 147 kW (200 PS) @ 7,400 rpm | |
| Torque | 178 Nm @ 6,200 rpm | |
| Fuel system | PGM-FI (Programmed Fuel Injection) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 10.6:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven DOHC | |
| Oil type | 10W-40 or 5W-40 (API SH/SG) | |
| Dry weight | 153 kg |
The high-revving VTEC character delivers thrilling performance above 5,500 RPM but requires keeping revs high for optimal power. Regular oil changes (every 10,000 km) with high-quality 10W-40 or 5W-40 are critical for valvetrain longevity. The engine's design prioritizes performance, so fuel economy is modest. Valve clearance checks are recommended at 40,000 km intervals to maintain optimal VTEC operation and prevent premature wear. Avoid lugging the engine at low RPMs.
Oil Specs: Requires 10W-40 or 5W-40 meeting API SH/SG specification (Honda Service Manual 98SM-B18).
Emissions: Euro 2 certification applies to 1996-2001 Integra Type R models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards for European-spec Integra Type R (Honda Group PT-1997).
Honda Technical Information System (TIS): Docs B18-001
Honda Electronic Parts Catalogue (ETK): Doc. H-8765
VCA Type Approval Database (VCA/EMS/5678)
The Honda B18C6 was used exclusively in the Honda DC2 Integra Type R platform with longitudinal mounting. This engine received no platform-specific adaptations for other models and was not licensed to other manufacturers. All specifications are consistent across its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front of the engine block, just below the exhaust manifold (Honda TIS B18-001). The B18C6 is visually identifiable by its red valve cover (distinctive for Type R models) and intake manifold labeled "VTEC". Critical differentiation from the USDM B18C5: The B18C6 has a 4-2-1 exhaust header and is tuned for 200 PS, while the B18C5 is rated at 195 PS and uses a different ECU. The 8th digit of the VIN for European Type R models is 'R'.
The B18C6's primary reliability consideration is maintaining its high-RPM valvetrain. Honda engineering reports indicate robust internal durability when serviced correctly, while owner data suggests neglecting oil changes or valve adjustments can lead to premature wear. High-RPM operation and track use make adherence to maintenance schedules critical.
Analysis derived from Honda technical bulletins (1996-2001) and aggregated owner maintenance data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA B18C6.
Comprehensive technical documentation and regulatory references
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HONDA Official Site
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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
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