Honda A20A4 Engine
This page lists the A20A4 specifications for the engine built by Honda.
| Fuel Type | Petrol |
|---|---|
| Configuration |
I4 Cast iron block and aluminum SOHC head |
| Combustion Type | Naturally Aspirated |
| Displacement (cc) | 1,955 cc |
| Cylinders | 4 |
| Cylinder Bore (mm) | 82.7 mm |
| Cylinder Stroke (mm) | 91 mm |
| Valves | 12 |
| Valves Per Cylinder | 3 |
| Valvetrain | SOHC |
| Compression Ratio | 9.4:1 |
| Power (kW) | 90 kW @ 5,500 RPM |
| Torque (N⋅m) | 166 N⋅m @ 4,000 RPM |
| Redline (RPM) | |
| Weight (kg) | |
| Production | 1984 - 1989 |
Where listed, power output figures are based on the most powerful production variant of that engine, because some manufacturers use different engine maps to tune the same engine for better fuel economy, performance or to differentiate models in the range.
The A20A3 and A20A4 were the fuel injected versions of the A20A engines. They were run by Honda's PGM-FI system on a partial OBD-0 computer. The A20A4 gives a slightly higher power output because of not having emissions components. The A20A3 was offered in the 1984-1987 Honda Prelude 2.0Si, the 1986-1989 Honda Accord LX-i as well as the 1989 Honda Accord SE-i.
In 1988, the A20A3 injection system in the US and Canada was upgraded with a new two-stage intake manifold (Dual-Stage Intake Manifold) and 4-2-1 exhaust manifold and the compression ratio was increased from 8.8:1 to 9.3:1, producing an extra 7.5 kW and 11 N⋅m of torque.
The Accord KS model had a compression ratio of 8.9:1 and the Accord KX & KG models had a compression ratio of 8.8:1 (using a catalytic converter).
Last Updated: 31st January 2021 at 13:55:32