The AEM Smart Coil is a high-performance ignition coil that delivers increased spark energy for improved combustion and increased horsepower. The Smart Coil is designed to work with AEM engine management systems and is a popular choice for high-performance and racing applications. Proper wiring of the Smart Coil is crucial for optimal performance and reliability. In this article, we will discuss the AEM Smart Coil wiring diagram in detail, including common wiring configurations, important wiring considerations, and frequently asked questions.
Understanding the AEM Smart Coil Wiring Diagram
The AEM Smart Coil wiring diagram consists of several components that work together to provide optimal spark energy to the engine. These components include the Smart Coil, ignition module, trigger input, and power supply. The Smart Coil is the primary component responsible for producing the high-voltage spark required for ignition. The ignition module controls the timing and duration of the spark, while the trigger input signals the module to fire the spark. The power supply provides the necessary voltage to power the system.
Proper wiring of the Smart Coil is essential for optimal performance and reliability. The wiring diagram includes several important components, such as the power connector, trigger connector, and grounding wire. These components must be wired correctly to ensure that the Smart Coil delivers maximum spark energy to the engine. The wiring diagram can vary depending on the specific application and engine management system used.
Wiring Configurations
There are several common wiring configurations for the AEM Smart Coil, including the single-coil, multiple-coil, and wasted-spark configurations. Each configuration has its own specific wiring diagram and considerations.
Single-Coil Configuration
The single-coil configuration is the simplest configuration and is typically used for four-cylinder engines. In this configuration, a single Smart Coil is connected directly to the ignition module and trigger input. The power supply is connected to the Smart Coil separately. The wiring diagram for the single-coil configuration is shown in Table 1.
| Wire | Color | Description |
|---|---|---|
| 1 | Black | Ground |
| 2 | Red | Power Supply |
| 3 | Gray | Trigger Input |
| 4 | Green | Smart Coil Output |
Table 1: AEM Smart Coil Wiring Diagram for Single-Coil Configuration
Important considerations for the single-coil configuration include ensuring that the trigger input is connected to the correct cylinder and that the power supply is adequate for the Smart Coil.
Multiple-Coil Configuration
The multiple-coil configuration is typically used for engines with more than four cylinders. In this configuration, multiple Smart Coils are used, with each coil connected to its own trigger input and ignition module. The power supply is connected to all of the Smart Coils in parallel. The wiring diagram for the multiple-coil configuration is shown in Table 2.
| Wire | Color | Description |
|---|---|---|
| 1 | Black | Ground |
| 2 | Red | Power Supply |
| 3 | Gray | Trigger Input #1 |
| 4 | Green | Smart Coil #1 Output |
| 5 | Gray/Red | Trigger Input #2 |
| 6 | Green/Red | Smart Coil #2 Output |
| 7 | Gray/White | Trigger Input #3 |
| 8 | Green/White | Smart Coil #3 Output |
Table 2: AEM Smart Coil Wiring Diagram for Multiple-Coil Configuration
Important considerations for the multiple-coil configuration include ensuring that the trigger inputs are connected to the correct cylinders and that the power supply is adequate for all of the Smart Coils.
Wasted-Spark Configuration
The wasted-spark configuration is typically used for engines with odd numbers of cylinders, such as five or seven. In this configuration, two Smart Coils are used, with each coil connected to two cylinders. The ignition module fires one Smart Coil for one cylinder on the compression stroke and the other Smart Coil for the adjacent cylinder on the exhaust stroke. The power supply is connected to both Smart Coils in parallel. The wiring diagram for the wasted-spark configuration is shown in Table 3.
| Wire | Color | Description |
|---|---|---|
| 1 | Black | Ground |
| 2 | Red | Power Supply |
| 3 | Gray | Trigger Input #1 |
| 4 | Green | Smart Coil #1 Output |
| 5 | Gray/Red | Trigger Input #2 |
| 6 | Green/Red | Smart Coil #2 Output |
Table 3: AEM Smart Coil Wiring Diagram for Wasted-Spark Configuration
Important considerations for the wasted-spark configuration include ensuring that the trigger inputs are connected to the correct cylinders and that the power supply is adequate for both Smart Coils.
Grounding the Smart Coil
Grounding the Smart Coil is an essential part of the wiring process. The Smart Coil must be grounded to the engine block or chassis to ensure optimal performance and reliability. It is crucial to use a high-quality ground wire with a sufficient gauge to handle the current load. A poor ground connection can result in reduced spark energy and misfires. It is also essential to ensure that the ground connection is clean and free of rust or corrosion.
Frequently Asked Questions
What is the maximum voltage output of the AEM Smart Coil?
The AEM Smart Coil is capable of producing up to 100mJ of spark energy and a maximum voltage output of 60,000 volts.
Can the AEM Smart Coil be used with non-AEM engine management systems?
The AEM Smart Coil is designed to work with AEM engine management systems but can be used with other aftermarket engine management systems that support a similar ignition output signal.
What is the warranty on the AEM Smart Coil?
The AEM Smart Coil comes with a one-year limited warranty from the date of purchase.
What is the recommended gap for spark plugs used with the AEM Smart Coil?
The recommended spark plug gap for use with the AEM Smart Coil is 0.024-0.028 inches.
Can the AEM Smart Coil be used with boost?
Yes, the AEM Smart Coil can be used with boost levels up to 40psi.
Conclusion
The AEM Smart Coil is a high-performance ignition coil that delivers increased spark energy for improved combustion and increased horsepower. Proper wiring of the Smart Coil is crucial for optimal performance and reliability. The Smart Coil can be wired in several configurations, including the single-coil, multiple-coil, and wasted-spark configurations. Each configuration has its own specific wiring diagram and considerations. Grounding the Smart Coil is an essential part of the wiring process and can impact performance and reliability. By following the wiring diagram and important wiring considerations discussed in this article, you can ensure that your AEM Smart Coil delivers maximum spark energy to your engine.
