The Honda J30A5 engine is a 3.0-liter V6 engine produced by Honda. It was first introduced in 2005 and was used in several Honda vehicles, including the 2005-2007 Honda Accord.
This engine is known for its impressive power output, smooth and responsive acceleration, and overall reliability.
In this article, we will delve into the history, specifications, and performance of the Honda J30A5 engine, providing an in-depth review of what makes it one of the best engines Honda has ever produced.
Whether you’re a Honda enthusiast or simply looking to understand more about this engine, read on to learn more about the J30A5.
Honda J30A5 Engine Overview
The Honda J30A5 engine is a 3.0-liter V6 engine that was produced by Honda from 2005 to 2007. This engine was designed for the 2005-2007 Honda Accord and was known for its impressive power output and smooth operation.
The J30A5 features a displacement of 3.0 liters, with a bore and stroke of 86 mm x 86 mm. This engine produces 244 horsepower at 6,244 RPM and 211 lb-ft of torque at 5,000 RPM, with a redline of 6,800 RPM.
The J30A5 also features a compression ratio of 10.0:1 and a 24-valve SOHC i-VTEC valve train.
One of the defining features of the J30A5 engine is its i-VTEC technology, which provides improved performance and fuel efficiency. This system adjusts valve timing and lift based on engine speed, providing more power at high RPM and improved fuel efficiency at low RPM.
The J30A5 also features a high-revving design, with a redline of 6,800 RPM, making it one of the highest-revving V6 engines produced by Honda.
In terms of performance, the J30A5 engine is known for its smooth and responsive acceleration. The engine delivers a strong and linear power delivery, with a linear increase in power as the RPMs increase.
This engine is also known for its fuel efficiency, with some drivers reporting an average of 22 miles per gallon in combined city and highway driving.
The J30A5 is also known for its reliability and low maintenance requirements, making it an excellent choice for drivers looking for a dependable and well-performing engine.
Overall, the Honda J30A5 engine is a well-rounded and impressive engine that delivers impressive performance, fuel efficiency, and reliability.
Whether you’re a Honda enthusiast or simply looking for a powerful and reliable engine for your vehicle, the J30A5 is definitely worth considering.
Specification Table for J30A5 Engine
|Displacement||3.0 liters (182.9 cu in)|
|Bore x Stroke||86 mm x 86 mm (3.39 in x 3.39 in)|
|Power||244 horsepower at 6,244 RPM|
|Torque||211 lb-ft at 5,000 RPM|
|Valve Train||24-Valve SOHC i-VTEC|
|Fuel System||Multipoint Fuel Injection|
|Recommended Fuel Type||Unleaded Regular|
|Oil Capacity||4.7 quarts|
|Emission Rating||ULEV II|
|Vehicles Used In||2005-2007 Honda Accord|
Comparison With Other J30A Family Engine Like J30A1 and J30A3
The Honda J30A5 engine is part of the J30 engine family, which includes other engines such as the J30A1 and J30A3. Let’s compare the specs of the J30A5 with those two engines
|Displacement||3.0 liters (182.9 cu in)||3.0 liters (182.9 cu in)||3.0 liters (182.9 cu in)|
|Bore x Stroke||86 mm x 86 mm (3.39 in x 3.39 in)||86 mm x 86 mm (3.39 in x 3.39 in)||86 mm x 86 mm (3.39 in x 3.39 in)|
|Power||244 horsepower at 6,244 RPM||240 horsepower at 6,000 RPM||220 horsepower at 6,200 RPM|
|Torque||211 lb-ft at 5,000 RPM||212 lb-ft at 4,500 RPM||219 lb-ft at 4,500 RPM|
|Redline||6,800 RPM||6,800 RPM||6,800 RPM|
|Valve Train||24-Valve SOHC i-VTEC||24-Valve SOHC VTEC||24-Valve SOHC VTEC|
|Fuel System||Multipoint Fuel Injection||Multipoint Fuel Injection||Multipoint Fuel Injection|
|Emission Rating||ULEV II||ULEV||SULEV|
As we can see, all three engines have similar displacement and bore x stroke measurements, indicating that they share a similar design. However, the J30A5 produces the most power and torque compared to the J30A1 and J30A3, with the J30A1 producing the second-most power and torque.
Additionally, the J30A5 features the i-VTEC technology, which provides improved performance and fuel efficiency compared to the VTEC technology used in the J30A1 and J30A3.
Finally, the J30A5 has a slightly higher compression ratio compared to the J30A1 and J30A3, which can contribute to improved performance and efficiency.
In conclusion, while all three engines share a similar design, the J30A5 stands out as the most powerful and efficient engine in the J30 engine family, thanks to its i-VTEC technology and high compression ratio.
Head and Valvetrain Specs J30A5
The Honda J30A5 engine features a 24-valve SOHC (Single Overhead Camshaft) i-VTEC valvetrain. This advanced technology enhances the engine’s performance and fuel efficiency by controlling the valve timing and lift on the intake and exhaust valves.
The i-VTEC system consists of two cam profiles: a high-lift cam for high-RPM performance and a low-lift cam for improved low-RPM torque.
The VTEC system switches between the two cam profiles based on engine speed and load, allowing the engine to produce optimal power and efficiency across a wide range of operating conditions.
The 24-valve configuration of the J30A5 provides improved airflow and combustion efficiency, which contributes to higher power and torque outputs compared to 16-valve engines.
Additionally, the SOHC design keeps the engine compact and lightweight, improving its overall performance and efficiency.
Overall, the head and valvetrain specs of the J30A5 engine demonstrate Honda’s commitment to providing advanced and efficient technology in their engines, delivering high performance and fuel efficiency to the driver.
The Technologies Used in
The Honda J30A5 engine features several advanced technologies that enhance its performance and fuel efficiency, including:
This innovative technology uses two cam profiles to control valve timing and lift on the intake and exhaust valves, improving engine performance and efficiency across a wide range of operating conditions.
2. Multipoint Fuel Injection
The J30A5 uses a multipoint fuel injection system to deliver precise amounts of fuel to each cylinder, improving combustion efficiency and reducing emissions.
3. High Compression Ratio
With a compression ratio of 10.0:1, the J30A5 engine is able to extract more energy from each combustion cycle, improving power and efficiency.
4. Sohc Design
The single overhead camshaft design of the J30A5 engine keeps it compact and lightweight, contributing to its overall performance and efficiency.
5. Ulev Ii Emission Rating
The J30A5 engine meets the Ultra-Low Emissions Vehicle (ULEV) II emissions standard, demonstrating Honda’s commitment to reducing harmful emissions and promoting a cleaner environment.
These technologies work together to provide a smooth and powerful driving experience while also delivering fuel efficiency and low emissions.
The Honda J30A5 engine is a testament to the company’s focus on innovation and their commitment to providing advanced technology in their vehicles.
The Honda J30A5 engine is widely recognized for its impressive performance and efficiency. With a displacement of 3.0 liters and a bore and stroke of 86 mm x 86 mm, the J30A5 engine is capable of delivering a powerful 244 horsepower at 6,244 RPM and 211 lb-ft of torque at 5,000 RPM.
The engine’s high redline of 6,800 RPM allows for a sporty and exciting driving experience, while its advanced i-VTEC valvetrain enhances performance and fuel efficiency across a wide range of operating conditions.
In real-world driving, the J30A5 engine provides smooth and responsive acceleration, making it a great choice for drivers who value a fun and engaging driving experience.
The engine’s high compression ratio and efficient fuel injection system contribute to its impressive fuel economy, allowing drivers to enjoy its performance without sacrificing efficiency.
Overall, the Honda J30A5 engine is a well-rounded powerplant that delivers a perfect balance of power, efficiency, and reliability.
Its advanced technologies and impressive performance make it a popular choice among drivers who value a high-performance engine in their vehicles.
What Car Did the J30A5 Come in?
The Honda J30A5 engine was originally used in the 2005-2007 Honda Accord V6, which was sold in North America.
Additionally, the J30A5 engine was also available in the 2013-2016 Honda Accord sold in China, with VCM (Variable Cylinder Management) technology and a maximum output of 261 PS.
Other J Series Engines-
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