The MSD 7AL 2 is a popular ignition control system used in high-performance racing cars. It is designed to provide reliable and consistent spark to the engine, ensuring maximum power and performance. However, wiring the MSD 7AL 2 can be a daunting task for many car enthusiasts. In this article, we will discuss the MSD 7AL 2 wiring diagram 7220 and provide step-by-step instructions on how to install it in your car.
MSD 7AL 2 Overview
The MSD 7AL 2 is a digital ignition control box that features multiple spark discharge, rev limiter, and adjustable start retard. It can operate on 4, 6, or 8 cylinder engines and is ideal for street or strip use. The MSD 7AL 2 provides consistent and reliable spark, even at high RPMs, which is essential for high-performance racing cars.
MSD 7AL 2 Wiring Diagram 7220
The MSD 7AL 2 wiring diagram 7220 is a detailed schematic of the different components and wires that make up the ignition control system. It includes various wires, switches, and connectors that are required to connect the MSD 7AL 2 to your car’s electrical system. The wiring diagram also includes instructions on how to connect the system to your ignition coil, distributor, and battery.
How to Read the MSD 7AL 2 Wiring Diagram 7220
Reading the MSD 7AL 2 wiring diagram 7220 can be intimidating for many car enthusiasts. However, understanding the different symbols and wires is essential for successful installation. The wiring diagram is divided into different sections, each representing a different component or system. The wires are colored and labeled, making it easy to identify them and connect them to the correct components.
Components of the MSD 7AL 2 Wiring Diagram 7220
The MSD 7AL 2 wiring diagram 7220 includes the following components:- Ignition Control Box: This is the main component of the MSD 7AL 2 system. It is responsible for providing the spark to the engine and controlling the different functions of the system.- Distributor: The distributor is responsible for distributing the spark to the different cylinders in the engine.- Coil: The ignition coil converts the low voltage from the battery into high voltage needed to create a spark in the engine.- Battery: The battery provides the power to the MSD 7AL 2 system and the rest of the car’s electrical system.- RPM Activated Switch: This switch is used to activate the rev limiter and other features of the MSD 7AL 2 system.
MSD 7AL 2 Wiring Instructions
Now that you understand the different components and wires of the MSD 7AL 2 wiring diagram 7220, it’s time to install it in your car. Here are the step-by-step instructions on how to wire the MSD 7AL 2 ignition control system:1. Disconnect the negative terminal of the battery to prevent any accidental electrical charges.2. Mount the MSD 7AL 2 ignition control box in a secure location in your car. Make sure it is away from any heat sources, such as exhaust manifold or headers.3. Connect the red wire from the MSD 7AL 2 to the positive terminal of the battery using a 10-gauge wire.4. Connect the black wire from the MSD 7AL 2 to the negative terminal of the battery using a 10-gauge wire.5. Connect the white wire from the MSD 7AL 2 to the tach output on your distributor using a 20-gauge wire.6. Connect the green wire from the MSD 7AL 2 to the negative side of the ignition coil using a 20-gauge wire.7. Connect the orange wire from the MSD 7AL 2 to the positive side of the ignition coil using a 20-gauge wire.8. Connect the pink wire from the MSD 7AL 2 to the RPM Activated Switch using a 20-gauge wire.9. Connect the gray wire from the MSD 7AL 2 to the ground using a 20-gauge wire.10. Connect the violet wire from the MSD 7AL 2 to the start retard input on your distributor using a 20-gauge wire.11. Connect the blue wire from the MSD 7AL 2 to any switch or input that you want to use to activate the rev limiter using a 20-gauge wire.12. Once all the wires are connected, test the MSD 7AL 2 ignition control system by starting your engine and checking for spark.
FAQ
Here are the answers to some frequently asked questions about the MSD 7AL 2 wiring diagram 7220:
1. What size wires should I use to connect the MSD 7AL 2?
You should use 10-gauge wire for the power and ground wires and 20-gauge wires for the rest of the connections.
2. What is the RPM Activated Switch on the MSD 7AL 2?
The RPM Activated Switch is a switch that is used to activate the rev limiter and other features of the MSD 7AL 2 system. It is typically connected to the distributor or the tach output.
3. Can I install the MSD 7AL 2 myself or do I need professional help?
While it is possible to install the MSD 7AL 2 yourself, it is recommended that you seek professional help if you are not experienced with electrical wiring.
4. What are the benefits of using the MSD 7AL 2 ignition control system?
The MSD 7AL 2 provides reliable and consistent spark to the engine, resulting in maximum power and performance. It also features a rev limiter and adjustable start retard, which are essential for high-performance racing cars.
