In stock form, horsepower varies across the Honda K-series 2.4-liter engines. The K24 family generally produces between about 160 and 210 horsepower, depending on variant, year, and market. There isn’t a single horsepower figure for the entire K24 lineup.
Understanding the K24 family
The K24 is a 2.4L inline-four engine used in a range of Honda and Acura models since the early 2000s. Variants differ in tuning, intake/exhaust configurations, valve timing, and emissions controls, all of which influence the factory horsepower rating. Because of this variety, exact figures must be checked for the specific engine code and model year.
Stock horsepower ranges by variant (approximate)
Below is a snapshot of typical, stock horsepower for several widely found configurations. Numbers are approximate and can vary by year, market, and equipment.
- K24A1/A2 family (early 2.4L variants): approximately 160–170 horsepower.
- Higher-output 2.4L variants used in performance-oriented models (e.g., TSX-era configurations): approximately 200 horsepower.
- Later 2.4L K-series variants used in mainstream Accords/CR-Vs: approximately 180–190 horsepower, with some markets rating close to 190–205 horsepower.
For precise figures, verify the exact engine code (for example, K24A8, K24Z series, etc.) and the official factory rating for the vehicle in question.
With forced induction or tuning
Horsepower can dramatically increase when the engine is turbocharged or otherwise modified. A stock K24 may reach well over 300 horsepower with proper tuning and supporting modifications, though reliability and engine longevity depend on build quality and care.
Why the numbers vary across the K24 family
Different emissions requirements, intake/exhaust paths, cam profiles, and ECU calibrations create a spectrum of horsepower within the same displacement. The K24 also includes variants tailored for different markets, so ratings can differ by country and model year.
Summary
The Honda K24 engine family does not have a single horsepower figure. Stock horsepower typically ranges from about 160 to 210 horsepower depending on the exact variant and market, with higher-output versions around 200 horsepower. Modifications such as turbocharging can push numbers much higher. Always identify the exact engine code to determine the precise factory horsepower for a given car.
Is a K24 or K20 better?
The K20's smaller displacement allows the engine to rev higher, resulting in higher horsepower. While the K24 offers higher lower-end torque if you have a K20 installed in a lightweight chassis, the lower displacement of the K20 should not be a significant concern.
How many HP can a K24 handle?
400-500 hp
Even with its stock internals intact, the K24 can support a turbo or supercharger without any serious work to the bottom. In factory-stock form, a turbocharged K24 can make upwards of 400-500 hp.
How much is the 400 hp K24?
From the mad scientists at 4Piston Racing, this 2.5-liter race-spec Honda K24 has a 15:1 compression ratio, dry-sump oiling, and 400 hp for $39,915.
What K24 has real VTEC?
The 9.6 and 9.7 CR K24As (RAA stamp on the head) are the 'eco' versions with VTEC only on the intake cam. Typically around 160-170hp. The 10.5 CR K24As (RBB stamp on the head) are the performance versions with real VTEC 3-lobe cams and make around 190-200hp stock.