The Honda K24A3 engine is a 4-cylinder, 2.4-liter engine that was produced by Honda from 2003 to 2007. It was used in the Honda Accord and Accord Euro models, and was known for its high power output and reliability.
In this post, we will provide an in-depth look at the engine specifications and performance of the Honda K24A3, so that you can get a better understanding of what this engine has to offer.
Whether you’re a potential buyer, a car enthusiast, or just someone who wants to know more about this engine, you’ll find the information you need in this post.
Honda K24A3 Engine Overview
The Honda K24A3 engine is a 2.4-liter, 4-cylinder engine that was produced by Honda Motor Company from 2003 to 2007. It was designed for use in the Honda Accord and Accord Euro models, and was known for its high power output and reliability.
This engine was part of Honda’s K-series engine family, which was known for its high performance and efficient design.
The K24A3 engine has a compression ratio of 10.5:1, which is relatively high compared to other engines in its class.
This high compression ratio contributes to the engine’s high power output, which is rated at 190 horsepower at 6800 RPM and 171 lb-ft of torque at 4500 RPM. The engine also has a relatively high RPM limit, with a redline of 7300 RPM.
In terms of engine code, the K24A3 was designated with the code RBB. This code is used by Honda to identify the engine specifications, such as its displacement, compression ratio, and other features.
The code is also used to help technicians diagnose and repair the engine if needed.
Overall, the Honda K24A3 engine was a popular choice for car enthusiasts and performance enthusiasts due to its high power output, reliability, and efficient design.
It was also well-regarded by Honda Accord owners who were looking for a high-performance engine option. In comparison to other Honda Accord models, the K24A3 engine offered a significant improvement in terms of power and performance.
Specification Table for K24A3 Engine
| Specification | K24A3 |
|---|---|
| Displacement | 2.4L |
| Compression ratio | 10.5:1 |
| Power output | 190 PS (140 kW; 190 hp) @ 6800 RPM |
| Torque output | 171 lb⋅ft (232 N⋅m) @ 4500 RPM |
| RPM limit (redline) | 7300 RPM |
| Engine code | RBB |
| Years produced | 2003 – 2007 |
| Models used in | Honda Accord, Accord Euro |
Source: Wikipedia
Comparison With Other K24 Family Engine Like K24A1 and K24A2
| Specification | K24A3 | K24A1 | K24A2 |
|---|---|---|---|
| Displacement | 2.4L | 2.4L | 2.4L |
| Compression ratio | 10.5:1 | 9.6:1 | 9.6:1 |
| Power output | 190 PS (140 kW; 190 hp) @ 6800 RPM | 160 PS (118 kW; 158 hp) @ 6200 RPM | 200 PS (147 kW; 197 hp) @ 7800 RPM |
| Torque output | 171 lb⋅ft (232 N⋅m) @ 4500 RPM | 161 lb⋅ft (218 N⋅m) @ 4000 RPM | 142 lb⋅ft (193 N⋅m) @ 6200 RPM |
| RPM limit (redline) | 7300 RPM | 7100 RPM | 7800 RPM |
| Engine code | RBB | RAA | RBB |
| Years produced | 2003 – 2007 | 2002 – 2006 | 2002 – 2006 |
| Models used in | Honda Accord, Accord Euro | Honda CR-V, Honda Element | Honda Accord (Japan, Europe) |
The Honda K24A3 engine is similar in many ways to other engines in the K24 engine family, such as the K24A1 and K24A2. All three engines have a displacement of 2.4 liters, and are 4-cylinder engines.
However, there are some key differences in terms of performance and power output between the three engines.
The K24A3 engine has a higher compression ratio (10.5:1) than the K24A1 and K24A2 (9.6:1), which contributes to its higher power output of 190 PS (140 kW; 190 hp) @ 6800 RPM.
The K24A1 and K24A2 have lower power outputs of 160 PS (118 kW; 158 hp) @ 6200 RPM and 200 PS (147 kW; 197 hp) @ 7800 RPM, respectively. The K24A3 also has a slightly higher RPM limit (7300 RPM) than the K24A1 (7100 RPM), but a lower RPM limit than the K24A2 (7800 RPM).
In terms of torque output, the K24A3 has a slightly higher torque output of 171 lb-ft (232 N⋅m) @ 4500 RPM compared to the K24A1 (161 lb-ft (218 N⋅m) @ 4000 RPM), but a lower torque output compared to the K24A2 (142 lb-ft (193 N⋅m) @ 6200 RPM).
Overall, the K24A3 engine offers a good balance of power and performance, making it a popular choice for car enthusiasts and performance enthusiasts.
The K24A1 and K24A2 engines also offer good performance, but with slightly different power output and torque characteristics.
Head and Valvetrain Specs K24A3
The Honda K24A3 engine features a DOHC (Double Overhead Camshaft) head design, with four valves per cylinder.
The valvetrain is equipped with VTEC (Variable Valve Timing and Lift Electronic Control) technology, which allows for improved performance and fuel efficiency by varying the valve timing and lift based on engine load and RPM.
In terms of valve specs, the K24A3 has an intake valve diameter of 34 mm and an exhaust valve diameter of 29 mm. The camshafts are driven by a timing chain, which provides more durability and longevity compared to a timing belt.
Overall, the DOHC head design and VTEC technology in the K24A3 engine contribute to its high-revving capability and improved engine performance. The advanced valvetrain design and reliable timing chain also help ensure a long lifespan for the engine.
The Technologies Used in
The Honda K24A3 engine features several advanced technologies that contribute to its performance and efficiency:
1. Dohc (Double Overhead Camshaft) Head Design
This design features two camshafts that operate the intake and exhaust valves, providing improved breathing and valve control for optimized performance.
2. Vtec (Variable Valve Timing and Lift Electronic Control)
This technology allows for improved performance and fuel efficiency by varying the valve timing and lift based on engine load and RPM.
3. I-vtec (Intelligent Vtec)
This is an advanced version of VTEC technology that combines VTEC with VTC (Variable Timing Control) to optimize performance and efficiency.
4. Timing Chain
The K24A3 engine uses a timing chain instead of a timing belt, which provides more durability and longevity compared to a timing belt.
5. Drive-by-wire (Dbw) Throttle System
Thi electronic throttle control system eliminates the physical connection between the accelerator pedal and throttle, allowing for improved throttle response and fuel efficiency.
6. Direct Ignition System (Dis)
This system uses individual ignition coils for each spark plug, providing improved combustion efficiency and reduced emissions.
These advanced technologies help ensure the Honda K24A3 engine provides excellent performance and reliability, making it a popular choice for Honda vehicles.
Performance Review
The Honda K24A3 engine is known for its high-revving capability and impressive performance.
With a maximum power output of 190 PS (140 kW; 190 hp) at 6,800 RPM and a torque of 171 lb⋅ft (232 N⋅m) at 4,500 RPM, the K24A3 engine provides plenty of power for daily driving and performance applications.
One of the standout features of the K24A3 engine is its VTEC technology, which provides improved engine performance by optimizing the valve timing and lift based on engine load and RPM.
This results in improved throttle response and acceleration, making the K24A3 engine a great choice for sporty driving.
In terms of fuel efficiency, the K24A3 engine is known for its relatively low consumption, thanks to its i-VTEC technology and other fuel-saving features.
The Drive-by-Wire throttle system, Direct Ignition System, and other technologies also contribute to the engine’s overall efficiency and reliability.
The K24A3 engine is known for its high-revving capability, with a redline of 7,300 RPM. This makes the engine well-suited for high-performance applications and provides a thrilling driving experience.
Overall, the Honda K24A3 engine is a well-rounded engine that provides a balance of performance, efficiency, and reliability. Whether you’re looking for a daily driver or a performance vehicle, the K24A3 engine is an excellent choice.
What Car Did the K24A3 Come in?
The Honda K24A3 engine was primarily used in the 2003-2007 Honda Accord for the European and Asian markets. The K24A3 was the top-of-the-line engine option for the Honda Accord during this time, providing a balance of performance and efficiency for drivers.
The K24A3 engine is well-regarded for its high-revving capability, strong power output, and advanced technologies such as VTEC and i-VTEC. Whether you’re looking for a daily driver or a performance vehicle, the K24A3 engine is a great choice.
Other K Series Engines–
| K24Z7 | K24Z6 | K24Z5 | K24Z4 | K24Z3 |
| K24Z1 | K24A8 | K24A4 | K24A2 | K24A1 |
| K24V7 | K24W1 | K20Z5 | K20Z4 | K20Z3 |
| K20Z2 | K20Z1 | K20C6 | K20C4 | K20C3 |
| K20C2 | K20C1 | K20A9 | K20A7 | K20A6 |
| K20A4 | K20A3 | K20A2 | K20A1 |
Is K24A2 And K24A3 The Same?
Designed for European and Australian markets, the K24A3 is the same engine as the K24A2. Between 2003 and 2007, this 2.4-liter four-cylinder was available in Honda Accords and Accord Euros.
Is The K24A3 A Good Engine?
If you choose your parts carefully, the K24 is a very capable engine.
Is The K24A 3 Lobe?
K24A tags are applied to all JDM imported K24s. There is, however, a K24 imported from Japan in the accord. As a result, the 200hp has 3 lobe cams instead of 2.
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