The Honda EL is a 1,590 cc, inline‑four petrol engine produced between 1985 and 1988. It features a single overhead camshaft (SOHC) with 12 valves (3 valves per cylinder) and Honda's PGM-FI (Programmed Fuel Injection) system. This design offered a balance of efficiency and performance for its era, delivering 85 kW (116 PS) and 137 Nm of torque.
Fitted primarily to the third-generation Honda Prelude (BA4/BA8) and the Honda Vigor (AA), the EL was engineered for smooth, refined performance in mid-size coupes and sedans. Emissions compliance for its production period was met through electronic fuel injection and a catalytic converter, allowing it to meet contemporary Japanese and European standards.
One documented engineering characteristic is its unique 3-valve-per-cylinder head design, which was highlighted in Honda Service Bulletin 85-012. This layout aimed to optimize airflow for both low-end torque and high-RPM power, though it was later superseded by more conventional 4-valve designs.
Production years 1985–1988 meet applicable Japanese and European emissions standards for passenger vehicles of that era (Honda Internal Emissions Certification Docs).
The Honda EL is a 1,590 cc inline‑four naturally aspirated petrol engine engineered for mid-size coupes and sedans (1985-1988). It combines SOHC 12-valve architecture with PGM-FI fuel injection to deliver smooth, linear power and refined cruising. Designed to meet 1980s emissions standards, it prioritizes drivability and mechanical simplicity.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,590 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 12‑valve (3 per cylinder) | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 78.0 mm × 83.6 mm | |
| Power output | 85 kW (116 PS) @ 6,200 rpm | |
| Torque | 137 Nm @ 4,500 rpm | |
| Fuel system | PGM-FI (Programmed Fuel Injection) | |
| Emissions standard | Contemporary Japanese/European Standards | |
| Compression ratio | 9.4:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | 10W-40 (API SF) | |
| Dry weight | 125 kg |
The 3-valve head provides a smooth, broad powerband suitable for comfortable cruising but lacks the peak power of contemporary 4-valve designs. Strict adherence to 60,000 km timing belt replacement intervals is critical to prevent catastrophic failure. The PGM-FI system requires clean fuel filters and properly functioning sensors for optimal performance. The distributor-based ignition system should be inspected for wear. Regular oil changes with the correct viscosity protect the valvetrain and hydraulic lifters.
Oil Specs: Requires 10W-40 meeting API SF specification (Honda Owner's Manual 1986 Prelude).
Emissions: Certification applies to 1985-1988 models for their respective markets (Honda Internal Emissions Certification Docs).
Power Ratings: Measured under JIS D 1001 standards (Honda Group PT-1987).
Honda Technical Information System (TIS): Workshop Manual 1986 Prelude, SIB 85-012
Honda Electronic Parts Catalogue (EPC): Doc. H-EL-85
Honda Owner's Manual: 1986 Prelude
The Honda EL was used across Honda's BA and AA platforms with transverse mounting. This engine received minor ECU and accessory bracket variations between coupe and sedan body styles, creating minor part number differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the timing belt cover (Honda Workshop Manual 1986 Prelude). Visually, it can be identified by its SOHC valve cover and the distinctive 3-valve-per-cylinder head design. Critical differentiation from the A20A: The EL has a 12-valve head and PGM-FI, while the A20A is a 8-valve carbureted engine. The distributor is mounted at the rear of the cylinder head.
The EL is generally robust, with the primary long-term concern being timing belt failure if replacement intervals are neglected. Honda service data indicates that failure to replace the belt at 60,000 km can lead to catastrophic engine damage due to its interference design. The distributor and fuel injection sensors are also common wear items after 150,000 km.
Analysis derived from Honda technical bulletins (1985-1988) and aggregated workshop repair data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA EL.
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