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What K20 is in the RSX type S?

The RSX Type S is powered by Honda’s 2.0-liter K-series engine, specifically the K20A2 variant. In everyday terms, this is the performance-oriented K-series mill that gave the RSX its high-revving character and VTEC-driven punch.


Engine code and place in the K-series family


The RSX Type S uses the K20A2 engine, a member of Honda’s K-series family. The K20A2 is a 2.0-liter inline-4 with double overhead camshafts and i-VTEC, designed to deliver a robust top-end punch while remaining responsive in the midrange. This variant was widely paired with the RSX Type S in the early-to-mid 2000s, contributing to the model’s reputation for high-revving performance.


Technical profile at a glance


In the RSX Type S, the K20A2 is a 2.0-liter DOHC engine featuring Honda’s i-VTEC system on the intake side. Power is commonly cited around 210 horsepower, with peak torque near 142 lb-ft. The engine typically revs to about 8,000 rpm, with a compression ratio close to 11:1. These figures can vary slightly by market and model year, but the K20A2 in the RSX Type S is consistently viewed as the high-performance 2.0-liter variant of the K-series used in this chassis.


Context within the K-series lineup


The K-series family launched in the early 2000s as Honda’s modern replacement for the B-series. The K20A2, as found in the RSX Type S, distinguished itself from other K20 variants through its tuning for higher-rev performance and refined intake-side VTEC operation. While there were several other K20 configurations across different models (Civic, Integra, RSX, TSX, etc.), the RSX Type S relied on the K20A2’s balance of high-end horsepower and spirited response, helping the car stand out in its segment.


What to know if you’re shopping for or maintaining an RSX Type S


If you’re evaluating an RSX Type S or planning maintenance, remember that the K20A2 is a high-revving, timing-chain-driven engine that rewards regular care. Key considerations include ensuring proper oil changes with high-quality oil, monitoring for typical K-series wear (timing-chain tensioners, valve train components, and cooling system health), and verifying the engine’s ignition and VTEC system operate smoothly at the expected RPM range. While the basic architecture remains consistent across years, market-specific tuning and emissions requirements can cause small variations in output figures.


Summary


In short, the RSX Type S runs Honda’s K20A2 2.0-liter engine, a high-revving, i-VTEC-powered unit that defined the car’s performance character with roughly 210 horsepower and a strong top end. This engine choice positioned the RSX Type S as a standout in its class during its production years, underscoring Honda’s focus on rev-happy, engaging small-performance cars.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.