Wiring Diagram Big 3 Upgrade Diagram

Are you looking to upgrade your car’s electrical system for better performance? The Big 3 upgrade is a popular method to achieve this, which involves upgrading three essential electrical connections in your car: the alternator positive, battery negative, and engine ground. In this article, we will discuss the wiring diagram for the Big 3 upgrade and how it can improve your car’s electrical performance.

What is the Big 3 Upgrade?

The Big 3 upgrade is a modification that aims to improve the power delivery of your car’s electrical system. By upgrading the three main electrical connections, you can reduce the resistance and voltage drop in your car’s electrical circuit, providing a more reliable and efficient power supply to your car’s components.

The three connections that should be upgraded are the following:

  1. The alternator positive: This connection provides power from the alternator to the battery.
  2. The battery negative: This connection provides a ground for the battery.
  3. The engine ground: This connection grounds the engine to the car’s chassis.

Wiring Diagram for the Big 3 Upgrade

The wiring diagram for the Big 3 upgrade is relatively simple, involving only three wires that need to be upgraded. Here is a diagram showing the Big 3 upgrade wiring:

Connection Wire Gauge
Alternator Positive 2/0 AWG
Battery Negative 2/0 AWG
Engine Ground 2/0 AWG

As you can see from the table, all three connections should be upgraded to 2/0 AWG wire gauge. This size of wire is needed to handle the increased electrical load and ensure a reliable connection.

FAQ

What are the benefits of the Big 3 upgrade?

The primary benefit of the Big 3 upgrade is improved electrical performance. By reducing the resistance and voltage drop in the electrical circuit, your car’s components will receive a more reliable and efficient power supply. This can result in better performance, improved fuel efficiency, and a longer lifespan for your car’s electrical components.

How much does the Big 3 upgrade cost?

The cost of the Big 3 upgrade will depend on several factors, such as the type of wire and connectors used, the size of your car’s engine, and the complexity of the installation. However, on average, you can expect to pay between $50 and $200 for this upgrade.

Do I need to be an expert to install the Big 3 upgrade?

While it is recommended that you have some basic electrical knowledge and experience before attempting the Big 3 upgrade, this modification is relatively simple and can be completed by most DIY enthusiasts. However, if you are unsure about any aspect of the installation, it is always best to seek advice from a qualified professional.

What tools do I need to install the Big 3 upgrade?

Most of the tools you will need for this upgrade are common household tools. Here is a list of tools you will need:

  • Wire cutters and strippers
  • Crimping tool
  • Socket wrench set
  • Allen wrench set
  • Terminal cleaner

Can I install the Big 3 upgrade on any car?

Yes, the Big 3 upgrade can be installed on any car that has a traditional alternator, battery, and chassis ground system.

Conclusion

The Big 3 upgrade is a simple and effective modification that can greatly improve your car’s electrical performance. By upgrading the three main electrical connections, you can reduce the resistance and voltage drop in your car’s electrical circuit, providing a more reliable and efficient power supply to your car’s components. With the information provided in this article, you should now have a better understanding of the wiring diagram for the Big 3 upgrade and how it can benefit your car’s electrical system.