B-Series engine

B-Series engine
Name	B-Series engine
Manufacturer	Honda Motor Co., Ltd.
Production	1985–2001
Configuration	Inline-four
Displacement	1.5–1.8 L
Valvetrain	DOHC / SOHC VTEC (in some)
Fuel system	Electronic fuel injection
Block	Aluminum alloy
Head	Aluminum alloy
Power	92–190 hp

B-Series engine The B-Series engine is a family of inline-four automobile engines produced by Honda Motor Co., Ltd. from the mid-1980s through the early 2000s. It powered many models in the Honda Civic, Honda Integra, Honda CRX, and Acura Integra lineups and influenced aftermarket tuning communities including JDM enthusiasts and professional teams in events such as the Pikes Peak International Hill Climb and various SCCA championships. Engineers from Honda R&D Co., Ltd. developed the series to balance efficiency, reliability, and performance during an era shaped by regulations like the Corporate Average Fuel Economy standards and market shifts after the 1973 oil crisis.

Overview and Development

Honda began B-Series development at facilities including Hamamatsu R&D Center and Yokohama Plant to succeed earlier families like the Honda D-series engine and Honda F-series engine. Programs were influenced by collaborations with suppliers such as Keihin Corporation and Bosch for fuel injection and ignition systems, and by competition with engines from Toyota Motor Corporation and Nissan. The series debuted amid rising interest in DOHC designs popularized by engines like the Toyota 4A-GE and the Mitsubishi 4G63, with Honda leveraging technologies originating in projects tied to the Formula Two and Formula 3 motorsport ladder.

Design and Technical Specifications

B-Series architecture features an aluminum alloy block and head, a timing belt-driven dual overhead camshaft layout, and hemispherical combustion chambers developed with input from Honda R&D Americas, Inc. and suppliers such as NGK for spark plugs. Variants included SOHC and DOHC cylinder heads, with VTEC implementations designed by engineers who had worked on earlier Honda CVCC and Honda VTEC projects. Fuel delivery relied on electronic fuel injection systems from vendors like Keihin and Denso, while engine management was handled by ECUs produced by groups including Mugen and Nippon Seiki in OEM and motorsport forms. Typical bore and stroke combinations ranged according to displacement classes used in markets regulated by tax and licensing regimes in Japan and the European Union.

Variants and Model Codes

B-Series model codes such as B16A, B18C, B17A, and B20B denote displacement and head configurations; these codes were assigned by Honda Motor Co., Ltd. and appear on service manuals distributed through networks like American Honda Motor Co., Inc. and Honda UK. Specific sub-variants, including high-compression and Type R versions, were engineered at performance centers like Honda R&D Co., Ltd. Tochigi and prepared by divisions including Honda Performance Development and Mugen Motorsports. Market-specific versions appeared in vehicles sold through regional distributors such as Honda Canada Inc., Acura (marque), and Honda Australia Pty Ltd..

Performance, Tuning, and Applications

The B-Series became a favorite for tuners in communities linked to publications like Super Street, Import Tuner, and events organized by groups such as Formula Drift and Time Attack Series. Stock power outputs spanned modest economy ratings to high-revving Type R outputs used in Japan Domestic Market performance models. Aftermarket support from firms like Skunk2, HKS, Greddy, and BRIDE allowed upgrades to camshafts, intake manifolds, cylinder head porting, and forced induction kits used in competitions including the 24 Hours of Nurburgring and club-level SCCA Pro Racing events. Engine swaps placed B-Series blocks into chassis from Mazda MX-5, Toyota Corolla AE86, and even classic Mini builds, aided by wiring harnesses from companies like Painless Performance Products and standalone ECUs from Hondata.

Production History and Global Use

Manufacturing occurred at Honda plants in Japan, United States, and Thailand for various market allocations; assemblies were distributed through global dealer networks encompassing Honda Motor Europe and Honda Motor (China) Investment Co., Ltd.. The series saw heavy use in markets with performance trims such as the Acura Integra Type R sold in North America and performance-oriented Honda Civic Si trims in Europe and Asia. Regulatory environments, including emissions standards set by agencies like the United States Environmental Protection Agency and homologation requirements for series such as the FIA championships, shaped available configurations and catalyzed the development of successor families like the Honda K-series engine.

Common Issues and Maintenance

Common service concerns include timing belt wear, valvetrain inspection needs, and coolant system upkeep; routine procedures are documented in factory service manuals distributed by Honda Motor Co., Ltd. and aftermarket guides from publishers such as Haynes Manuals and Chilton. Enthusiast forums and technical resources run by organizations like Honda-Tech.com and Club Integra catalog issues like valve stem seal wear, head gasket longevity affected by cooling system failures, and oil consumption patterns noted in long-term tests by outlets including Consumer Reports and Car and Driver. OEM replacement parts are sourced through suppliers such as Genuine Parts Company and aftermarket vendors like Denso for ignition components and K&N Engineering for intake filtration.

Category:Honda engines