Japan · September 1991 Japanese-market launch specification

Honda Civic SiR-II

Honda introduced this fifth-generation Civic in September 1991. This page follows one exact launch configuration: the Japanese SiR-II three-door, type E-EG6, with the 170 PS B16A and high-rpm-compatible five-speed manual.

Performance hatchbacks
Front-left three-quarter exterior · Photo shows Honda Civic EG6 three-door hatchback exterior. Commons identifies an EG6 in Singapore and categorizes it as a 1991-generation Civic hatchback. Neither the page nor pixels establish Japanese SiR-II trim, exact build year, transmission or stock condition.
Modified Honda Civic EG6 front three-quarter · Iorisrandombses5001 · CC0 1.0
Auction-based estimated value

Research pending

A matching completed auction sale has not been verified for this exact year, body, trim, engine, transmission and market.

Joyride shows this gap instead of substituting an asking price, unsold bid or mismatched special vehicle.

A place in vehicle history

More than a set of wheels.

Honda built the SiR-II around a compact hatchback body and a 1.6-litre DOHC VTEC engine that could breathe differently at low and high engine speeds. The manual and automatic were not the same specification: Honda listed different power, torque, gearing and economy for them, so this profile stays with the 170 PS five-speed rather than blending both versions into one car.

Look a little closer.

The cover shows a real EG6 in Singapore, but it is a visibly modified later survivor with a dark replacement bonnet, front lip, wheels and windscreen banner. It proves the EG6 hatchback shape—not a 1991 build date, Japanese SiR-II trim, five-speed gearbox or factory-stock condition.

Photos show an example of the model or generation. The pictured vehicle’s year, equipment, or modifications can differ from the specification described here.

One engine with two cam personalities

Honda explained that a single fixed cam profile forces a compromise: gentle timing helps low-speed stability, while aggressive timing helps high-rpm airflow. DOHC VTEC gives both intake and exhaust valves a low-speed and high-speed pattern, switching lift and timing so the same naturally aspirated 1.6-litre engine can be tractable and still make 170 PS at 7,800 rpm.

Source: Honda · 1991 Civic engine engineering ↗

Why the transmission belongs in the identity

Honda offered the SiR-II with a five-speed manual and a lock-up four-speed automatic, but their figures differ. The manual uses its own ratios and 4.400 final drive and is rated at 170 PS; the automatic is rated at 155 PS with different torque and economy. Naming the five-speed prevents the page from quietly borrowing the strongest number from one version and the convenience hardware from another.

Source: Honda · 1991 Civic three-door specifications ↗

Where these facts come from

Selected facts checked for this edition. Some source pages link to broader model families. Last reviewed 2026-10-06.

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