The Honda J37A5 engine is a 3.7-liter V6 engine that was produced by Honda between 2010 and 2013. It was primarily used in the Acura ZDX luxury crossover vehicle.
The J37A5 engine was known for its high performance, reliability, and efficiency, making it an important component of Honda’s lineup of vehicles.
In this post, we will take a closer look at the Honda J37A5 engine, its key specs, and its performance details.
We will also explore its applications, as well as its benefits and drawbacks. Whether you’re a Honda enthusiast or just curious about this engine, this post will provide a comprehensive overview of the Honda J37A5 engine and its specs.
Honda J37A5 Engine Overview
The Honda J37A5 engine is a 3.7-liter V6 engine that was used in the 2010-2013 Acura ZDX luxury crossover vehicle.
It features a bore and stroke of 90 mm x 96 mm, a compression ratio of 11.2:1, and is equipped with a 24-valve SOHC VTEC (intake and exhaust) valvetrain. The engine produces 300 horsepower at 6300 rpm and 270 lb-ft of torque at 4500 rpm.
Fuel control is managed by a multi-point fuel injection system with PGM-FI technology.
The J37A5 engine is notable for its high performance and efficiency, making it a popular choice for those seeking a powerful and reliable engine for their vehicle.
The engine’s combination of high horsepower and torque, along with its fuel-saving technology, provides a balanced and impressive driving experience.
The J37A5 engine is designed with durability in mind and is known for its reliability and low maintenance requirements.
This engine also has good towing capacity and acceleration, making it a great choice for those who plan to use their vehicle for towing or for other demanding tasks.
The Honda J37A5 engine is a well-rounded and reliable engine that offers impressive performance, fuel efficiency, and durability.
While it was only used in a limited number of vehicles, its reputation for excellence has made it a popular choice among Honda enthusiasts.
Specification Table for J37A5 Engine
| Specification | Details |
|---|---|
| Displacement | 3.7 L; 223.6 cu in (3,664 cc) |
| Bore and Stroke | 90 mm × 96 mm (3.5 in × 3.8 in) |
| Compression Ratio | 11.2:1 |
| Power | 300 hp (224 kW) at 6300 rpm |
| Torque | 270 lb⋅ft (366 N⋅m) at 4500 rpm |
| Valvetrain | 24-valve SOHC VTEC (intake and exhaust) |
| Fuel Control | Multi-point fuel injection; PGM-FI |
Note: This table only provides a general overview of the Honda J37A5 engine specifications. For detailed information and specifications, it is recommended to consult the manufacturer’s manual or a professional mechanic.
Source: Wikipedia
Comparison With Other J37 Family Engine Like J37A1and J37A2
The J37A5 engine is part of the J37 engine family and is compared with other J37 engines, such as the J37A1 and J37A2, in terms of performance and specifications. The key differences between these engines are as follows
| Specification | J37A5 | J37A1 | J37A2 |
|---|---|---|---|
| Displacement | 3.7 L | 3.7 L | 3.7 L |
| Power | 300 hp (224 kW) at 6300 rpm | 310 hp (231 kW) at 6300 rpm | 300 hp (224 kW) at 6300 rpm |
| Torque | 270 lb⋅ft (366 N⋅m) at 4500 rpm | 275 lb⋅ft (373 N⋅m) at 5000 rpm | 271 lb⋅ft (369 N⋅m) at 5000 rpm |
| Valvetrain | 24-valve SOHC VTEC (intake and exhaust) | 24-valve SOHC VTEC (intake) | 24-valve DOHC VTEC (intake and exhaust) |
| Fuel Control | Multi-point fuel injection; PGM-FI | Direct fuel injection; DFI | Direct fuel injection; DFI |
The J37A5 engine has a slightly lower horsepower output compared to the J37A1, but produces more torque at lower RPMs.
The J37A5 engine has a SOHC valvetrain, while the J37A1 has a DOHC valvetrain, which can provide better high-revving performance.
The J37A5 also uses PGM-FI technology for fuel control, while the J37A1 uses DFI technology, which provides more precise fuel delivery and can improve fuel efficiency.
The J37A2 engine has similar horsepower and torque outputs to the J37A5, but has a DOHC valvetrain and uses DFI technology for fuel control.
This engine is designed to provide a balance of performance and efficiency and is a good choice for those seeking a high-performance engine that is also fuel efficient.
In conclusion, while all three engines are part of the J37 engine family, each engine has its own unique specifications and performance characteristics, making it important to choose the engine that best meets your needs.
Head and Valvetrain Specs J37A5
The Honda J37A5 engine is equipped with a 24-valve SOHC (Single Overhead Cam) VTEC (Variable Valve Timing and Lift Electronic Control) valvetrain.
The valvetrain consists of an intake and exhaust camshaft, and each camshaft operates its own set of valves. This allows for improved engine breathing and more efficient engine operation.
The VTEC system varies the lift and duration of the intake valves to improve engine performance and efficiency. At lower RPMs, the engine operates with a low-lift, short-duration cam profile for improved fuel efficiency.
At higher RPMs, the VTEC system switches to a high-lift, long-duration cam profile for improved performance.
The SOHC design provides a simpler and lighter engine design compared to a DOHC (Double Overhead Cam) design.
However, the DOHC design provides more precise control of the intake and exhaust valves, which can lead to improved high-revving performance.
Overall, the J37A5 engine’s SOHC VTEC valvetrain provides a good balance of performance and efficiency, making it a suitable choice for a wide range of driving conditions.
The Technologies Used in
The Honda J37A5 engine utilizes several technologies to improve performance and efficiency
1. Vtec (Variable Valve Timing and Lift Electronic Control)
This system varies the lift and duration of the intake valves to improve engine performance and efficiency.
2. Pgm-fi (Programmed Fuel Injection)
This multi-point fuel injection system provides precise fuel delivery to the engine, which can improve fuel efficiency and performance.
3. Sohc (Single Overhead Cam) Valvetrain
The J37A5 engine features a SOHC valvetrain design, which provides a simpler and lighter engine design compared to a DOHC design.
4. High-compression Piston Design
The J37A5 engine features a high-compression piston design, with a compression ratio of 11.2:1, which allows the engine to produce more power from each combustion cycle.
5. Dual-stage Intake Manifold
The engine is equipped with a dual-stage intake manifold, which helps to improve engine breathing and increase power output.
By utilizing these advanced technologies, the J37A5 engine provides excellent performance and efficiency, making it a popular choice for Honda vehicles.
Performance Review
The Honda J37A5 engine provides a good balance of performance and efficiency. With a displacement of 3.7 liters, this engine produces 300 horsepower at 6,300 RPM and 270 lb-ft of torque at 4,500 RPM.
These numbers are impressive, especially when compared to other engines in its class. The J37A5’s VTEC system, high-compression piston design, and dual-stage intake manifold all contribute to its high performance.
In terms of acceleration, the J37A5 engine provides brisk acceleration and a strong, linear power delivery. The engine’s torque output is also impressive, providing plenty of low-end grunt for everyday driving.
At higher RPMs, the VTEC system provides additional horsepower and torque, which makes the engine feel even more lively.
In terms of efficiency, the J37A5 engine does a good job of balancing performance and fuel efficiency.
The engine’s multi-point fuel injection system, VTEC system, and high-compression piston design all help to improve efficiency, making this engine a good choice for those who value performance and fuel efficiency.
Overall, the Honda J37A5 engine provides a solid balance of performance and efficiency, making it an excellent choice for those looking for a high-performance engine for their Honda vehicle.
Whether you’re looking for quick acceleration or impressive fuel efficiency, the J37A5 engine is a great choice.
What Car Did the J37A5 come in?
The Honda J37A5 engine was primarily found in the 2010-2013 Acura ZDX luxury crossover SUV. This engine provided the ZDX with a smooth and powerful driving experience, delivering excellent performance and efficiency.
With 300 horsepower and 270 lb-ft of torque, the J37A5 engine provides strong acceleration and plenty of low-end grunt, making it a popular choice among Acura enthusiasts.
The J37A5 engine’s combination of advanced technologies and solid engineering make it a reliable and high-performing engine, making it an excellent choice for the Acura ZDX.
Other J Series Engines-
| J37A4 | 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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