The Honda J37A4 engine is a powerful and efficient V6 engine that was first introduced in 2008. With its advanced features and impressive performance, it quickly became a popular choice among Honda and Acura drivers.
The purpose of this blog post is to provide an in-depth review of the J37A4 engine, including its specs and performance.
This post is intended for car enthusiasts and those who are in the market for a new vehicle with a reliable and high-performing engine.
Whether you’re a Honda fan or simply interested in the latest automotive technology, this post will provide valuable information on the J37A4 engine.
Honda J37A4 Engine Overview
Engine Overview
The Honda J37A4 engine is a 3.7-liter V6 engine that was introduced in 2008 and used in a variety of Honda and Acura vehicles.
With a bore and stroke of 90 mm x 96 mm and a compression ratio of 11.2:1, the J37A4 delivers impressive power and torque output of 305 horsepower at 6300 RPM and 273 lb-ft of torque at 5000 RPM.
This engine features a 24-valve SOHC VTEC system that provides both intake and exhaust variable valve timing, allowing for optimized performance and fuel efficiency.
The J37A4 also uses a multi-point fuel injection system (PGM-FI) to ensure precise fuel delivery and engine control.
One of the key features of the J37A4 engine is its advanced valvetrain design, which provides improved engine breathing and allows for a high level of performance.
This engine is capable of producing smooth, responsive power delivery, with strong acceleration and a high level of refinement.
Additionally, the J37A4 engine is known for its excellent fuel efficiency, making it a great choice for those who want a high-performance engine that won’t break the bank at the pump.
The J37A4 engine was used in several popular Honda and Acura vehicles, including the 2008-2012 Honda Legend and the 2009-2014 Acura TL SH-AWD. In these vehicles, the J37A4 engine provides a balance of performance, reliability, and efficiency that is hard to match.
Whether you’re looking for a high-performance sedan, a luxurious family vehicle, or a sports car with plenty of power, the J37A4 engine is a great choice.
Overall, the Honda J37A4 engine is a well-rounded and highly capable engine that provides impressive performance and fuel efficiency.
Whether you’re a Honda fan or simply looking for a reliable and high-performing engine, the J37A4 is definitely worth considering.
Specification Table for J37A4 Engine
Honda J37A4 Engine Specifications
| Specification | Value |
|---|---|
| Displacement | 3.7 L; 223.6 cu in (3,664 cc) |
| Bore and Stroke | 90 mm × 96 mm (3.54 in × 3.78 in) |
| Compression | 11.2:1 |
| Power | 305 hp (227 kW) at 6300 RPM |
| Torque | 273 lb-ft (370 N⋅m) at 5000 RPM |
| Valvetrain | 24-valve SOHC VTEC (intake and exhaust) |
| Fuel control | Multi-point fuel injection; PGM-FI |
| Used in | 2008-2012 Honda Legend, 2009-2014 Acura TL SH-AWD |
Source: Wikipedia
Comparison With Other J37 Family Engine Like J37A1and J37A2
Comparison with other J37 Family Engines
The Honda J37A4 engine is part of the J37 family of engines, which includes other popular models such as the J37A1 and J37A2. Here is a comparison of the key specifications between these engines
| Specification | J37A4 | J37A1 | J37A2 |
|---|---|---|---|
| Displacement | 3.7 L; 223.6 cu in (3,664 cc) | 3.7 L; 223.6 cu in (3,664 cc) | 3.7 L; 223.6 cu in (3,664 cc) |
| Bore and Stroke | 90 mm × 96 mm (3.54 in × 3.78 in) | 90 mm × 96 mm (3.54 in × 3.78 in) | 90 mm × 96 mm (3.54 in × 3.78 in) |
| Compression | 11.2:1 | 11.0:1 | 11.0:1 |
| Power | 305 hp (227 kW) at 6300 RPM | 305 hp (227 kW) at 6300 RPM | 280 hp (209 kW) at 6300 RPM |
| Torque | 273 lb-ft (370 N⋅m) at 5000 RPM | 273 lb-ft (370 N⋅m) at 5000 RPM | 252 lb-ft (340 N⋅m) at 5000 RPM |
| Valvetrain | 24-valve SOHC VTEC (intake and exhaust) | 24-valve SOHC VTEC (intake and exhaust) | 24-valve SOHC VTEC (intake and exhaust) |
| Fuel control | Multi-point fuel injection; PGM-FI | Multi-point fuel injection; PGM-FI | Multi-point fuel injection; PGM-FI |
| Used in | 2008-2012 Honda Legend, 2009-2014 Acura TL SH-AWD | 2006-2007 Honda Legend | 2008-2013 Acura RL |
As seen in the table, the main differences between the J37A4 and other J37 engines are the power and torque output, which are slightly higher in the J37A4.
Additionally, the J37A4 was used in different Honda and Acura vehicles than the other J37 engines.
In terms of performance, the J37A4 provides a strong balance of power, efficiency, and refinement, making it a great choice for those who want a high-performing engine.
The J37A1 and J37A2 are also high-performing engines, but with slightly lower power and torque output. Ultimately, the best engine for you will depend on your specific needs and the type of vehicle you’re looking for.
Head and Valvetrain Specs J37A4
The Honda J37A4 engine features a 24-valve SOHC VTEC (Variable Valve Timing and Lift Electronic Control) valvetrain.
This system allows the engine to switch between low and high lift cam profiles for improved performance and fuel efficiency.
Here are the head and valvetrain specifications of the J37A4 engine
| Specification | Value |
|---|---|
| Valve Configuration | SOHC |
| Number of Valves | 24 |
| Valve Lift Control | VTEC |
| Valve Timing Control | VTEC |
The VTEC system in the J37A4 engine allows for improved breathing and performance at high RPMs, while the SOHC design helps to keep the engine compact and lightweight.
These advanced technologies combine to create a high-performing engine with improved fuel efficiency and reduced emissions.
The Technologies Used in
Technologies Used in Honda J37A4 Engine
The Honda J37A4 engine is a high-performance engine that incorporates several advanced technologies for improved performance, efficiency, and reduced emissions. Some of the key technologies used in the J37A4 engine include:
1. Vtec (Variable Valve Timing and Lift Electronic Control)
This system allows the engine to switch between low and high lift cam profiles for improved performance and fuel efficiency.
2. Multi-point Fuel Injection
The J37A4 engine uses a multi-point fuel injection system, also known as PGM-FI, to precisely control fuel delivery and improve fuel efficiency.
3. High Compression Ratio
The J37A4 engine features a high compression ratio of 11.2:1, which increases engine efficiency and power.
4. Lightweight and Compact Design
The SOHC valvetrain and compact design of the J37A4 engine help to keep the engine lightweight and compact, while still providing excellent performance.
5. Precision Machining
The engine components are machined with high precision for improved reliability and performance.
6. Advanced Materials
The J37A4 engine uses advanced materials, such as aluminum for the engine block and high-strength steel for the crankshaft, to improve durability and reduce weight.
These technologies work together to create a high-performing engine that is efficient, reliable, and environmentally friendly.
The J37A4 engine is a great choice for those who want a high-performing engine with a balance of power, efficiency, and refinement.
Performance Review
Performance Review of Honda J37A4 Engine
The Honda J37A4 engine is a powerful and high-performing engine that is designed for luxury and high-performance vehicles.
This engine provides excellent power and torque, while still maintaining excellent fuel efficiency and low emissions.
Here are some of the key performance aspects of the J37A4 engine
1. Power and Torque
The J37A4 engine produces 305 horsepower at 6300 RPM and 273 lb-ft of torque at 5000 RPM. This provides excellent acceleration and power for high-performance driving.
2. Fuel Efficiency
Despite its high performance, the J37A4 engine is also very fuel efficient. This is due to the combination of the VTEC system, multi-point fuel injection, and high compression ratio, which all help to improve engine efficiency.
3. Low Emissions
The J37A4 engine is designed to meet strict emissions standards, making it an environmentally friendly choice for those who want a high-performing engine.
4. Refinement
The J37A4 engine is a refined engine that provides a smooth and quiet driving experience. The engine is well-balanced and free of vibrations, making it a pleasure to drive.
Overall, the Honda J37A4 engine is a high-performing engine that provides excellent power and torque, while still maintaining excellent fuel efficiency and low emissions.
This engine is a great choice for those who want a balance of power, efficiency, and refinement in a high-performance engine.
What Car Did the J37A4 Come in?
The Honda J37A4 engine was used in several luxury and high-performance vehicles from 2008 to 2014, including the 2008-2012 Honda Legend and the 2009-2014 Acura TL SH-AWD.
This engine was designed for high-performance driving, delivering 305 horsepower and 273 lb-ft of torque, while still maintaining excellent fuel efficiency and low emissions.
The J37A4 engine was known for its refined and smooth driving experience, making it a popular choice for drivers who want a balance of power, efficiency, and refinement in a high-performance engine.
Other J Series Engines-
| J37A5 | J37A2 | J37A1 | J35Z8 | J35Z6 |
| J35Z3 | J35Z2 | J35Z1 | J35Y6 | J35Y4 |
| J35Y2 | J35Y1 | J35A9 | J35A8 | J35A7 |
| J35A6 | J35A5 | J35A4 | J35A3 | J32A3 |
| J32A2 | J32A1 | J30AC | J30A5 | J30A4 |
| J30A3 | J30A1 | J35S1 |
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