The Honda J37A1 engine is a 3.7L V6 engine manufactured by Honda Motor Company. It was first introduced in 2007 and was used in the Acura MDX until 2013.
The purpose of this article is to provide a comprehensive overview of the Honda J37A1 engine, including its specs and performance, and to give readers a better understanding of what makes this engine unique.
The article will cover the key aspects of the engine, including its displacement, bore and stroke, compression ratios, valvetrain, and fuel control system, as well as its power and torque outputs.
Additionally, the article will discuss the importance of the J37A1 engine in the Acura MDX and how it enhances the driving experience.
Whether you’re an engine enthusiast, a car owner, or just someone who wants to learn more about the Honda J37A1 engine, this article will provide you with valuable information.
Honda J37A1 Engine Overview
1. Engine Specs
The Honda J37A1 engine has a displacement of 3.7L or 223.6 cubic inches. The bore and stroke of the engine are 90mm x 96mm or 3.54 inches x 3.78 inches.
The compression ratios of the engine vary between 11.0:1 and 11.2:1 depending on the model year, with the earlier models having a compression ratio of 11.0:1 and the later models having a compression ratio of 11.2:1.
The engine features a 24-valve SOHC VTEC valvetrain and uses a multi-point fuel injection system with PGM-FI for fuel control.
2. Engine Performance
In terms of power and torque, the Honda J37A1 engine was designed to deliver high performance. The engine produces 300 horsepower at 6000 rpm and 275 lb-ft of torque at 5000 rpm for the 2007-2009 models.
For the 2010-2013 models, the engine produces 300 horsepower at 6300 rpm and 270 lb-ft of torque at 4500 rpm.
These outputs place the J37A1 engine among the top performers in its class and make it a great choice for those looking for a high-performance engine.
3. Use in Acura Mdx
The Honda J37A1 engine was used in the Acura MDX, a luxury crossover SUV. The engine played a crucial role in the performance of the Acura MDX, providing the power and torque necessary to deliver an enjoyable driving experience.
The combination of the J37A1 engine and the Acura MDX’s other performance-oriented features made the vehicle a great choice for those looking for a high-performance SUV.
Specification Table for J37A1 Engine
| Specification | J37A1 Engine |
|---|---|
| Displacement | 3.7L (223.6 cu in) |
| Bore and Stroke | 90 mm x 96 mm (3.54 in x 3.78 in) |
| Compression Ratio | 11.0:1 (2007-2009), 11.2:1 (2010-2013) |
| Valvetrain | 24v SOHC VTEC |
| Fuel Control | Multi-point fuel injection; PGM-FI |
| Power (2007-2009) | 300 hp (224 kW) at 6000 rpm |
| Torque (2007-2009) | 275 lb⋅ft (373 N⋅m) at 5000 rpm |
| Power (2010-2013) | 300 hp (224 kW) at 6300 rpm |
| Torque (2010-2013) | 270 lb⋅ft (366 N⋅m) at 4500 rpm |
Source: Wikipedia
Comparison With Other J37 Family Engine Like J37A2and J37A4
| Specification | J37A1 Engine | J37A2 Engine | J37A4 Engine |
|---|---|---|---|
| Displacement | 3.7L (223.6 cu in) | 3.7L (223.6 cu in) | 3.7L (223.6 cu in) |
| Bore and Stroke | 90 mm x 96 mm (3.54 in x 3.78 in) | 90 mm x 96 mm (3.54 in x 3.78 in) | 90 mm x 96 mm (3.54 in x 3.78 in) |
| Compression Ratio | 11.0:1 (2007-2009), 11.2:1 (2010-2013) | N/A | N/A |
| Valvetrain | 24v SOHC VTEC | N/A | DOHC VTEC |
| Fuel Control | Multi-point fuel injection; PGM-FI | N/A | Direct Injection |
| Power (2007-2009) | 300 hp (224 kW) at 6000 rpm | N/A | N/A |
| Torque (2007-2009) | 275 lb⋅ft (373 N⋅m) at 5000 rpm | N/A | N/A |
| Power (2010-2013) | 300 hp (224 kW) at 6300 rpm | N/A | N/A |
| Torque (2010-2013) | 270 lb⋅ft (366 N⋅m) at 4500 rpm | N/A | N/A |
Head and Valvetrain Specs J37A1
| Specification | J37A1 Engine |
|---|---|
| Valve Configuration | SOHC (Single Overhead Camshaft) |
| Valvetrain | VTEC (Variable Valve Timing and Lift Electronic Control) |
| Number of Valves | 24 |
The J37A1 engine features a Single Overhead Camshaft (SOHC) valve configuration and Honda’s VTEC technology, which allows for optimal valve lift and duration based on engine RPM, resulting in improved performance and fuel efficiency. The engine has 24 valves.
The Technologies Used in
The Honda J37A1 engine features several advanced technologies, including
1. Vtec (Variable Valve Timing and Lift Electronic Control)
allows for optimal valve lift and duration based on engine RPM, resulting in improved performance and fuel efficiency.
2. Multi-point Fuel Injection
a fuel delivery system that injects fuel into multiple points within the engine, providing better fuel efficiency and performance.
3. Pgm-fi (Programmed Fuel Injection)
an electronic fuel injection system that uses sensors to monitor various engine parameters and adjust fuel delivery accordingly.
4. Direct Injection (in J37A4 Only)
a fuel delivery system that injects fuel directly into the engine’s combustion chamber, resulting in improved fuel efficiency and performance.
5. Dohc (Double Overhead Camshaft) Valve Configuration (in J37A4 Only)
allows for improved valve control and efficiency, leading to increased performance and fuel efficiency.
Performance Review
The Honda J37A1 engine offers excellent performance, thanks to its advanced technologies and optimized design.
The engine produces 300 horsepower and 275 lb-ft of torque (2007-2009), or 300 horsepower and 270 lb-ft of torque (2010-2013), delivering strong acceleration and power.
The VTEC technology also provides improved fuel efficiency, making the J37A1 a great choice for drivers looking for both performance and efficiency.
The multi-point fuel injection and PGM-FI system work together to ensure that the engine runs smoothly and efficiently, providing consistent power delivery.
The DOHC valve configuration in the J37A4 engine further enhances performance, providing improved valve control and efficiency.
The Honda J37A1 engine offers a great balance of performance and efficiency, making it a popular choice for drivers looking for a powerful and reliable engine.
Whether you are driving in the city or on the highway, the J37A1 engine delivers strong acceleration and power, while also providing excellent fuel efficiency.
What Car Did the J37A1come in?
The Honda J37A1 engine was found in the 2007-2013 Acura MDX. It was a 3.7L engine that was designed to provide excellent performance and fuel efficiency.
The J37A1 featured VTEC technology, multi-point fuel injection, and PGM-FI, as well as a SOHC valve configuration.
With 300 horsepower and 270-275 lb-ft of torque, the J37A1 engine delivered strong acceleration and power, making it a popular choice for drivers looking for a powerful and reliable engine.
Other J Series Engines-
| J37A5 | J37A4 | J37A2 | 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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