1970 Chevelle Cowl Induction Wiring Diagram

The 1970 Chevelle is a classic car that gained popularity in the muscle car era. It featured a cowl induction system which was designed to provide additional air to the engine for improved performance. The cowl induction system became an optional feature for the 1970 Chevelle models. In this article, we will take a look at the wiring diagram for the cowl induction system in the 1970 Chevelle.

What is the cowl induction system?

The cowl induction system in the 1970 Chevelle was an optional feature that provided additional air to the engine for improved performance. The system worked by drawing air into the engine through a hood-mounted air induction system located at the base of the windshield. The cowl induction system was designed to improve the engine’s performance at high speeds by providing additional air to the engine.

The cowl induction system was available as an option for the 1970 Chevelle SS models. It was an expensive option but provided significant performance benefits. The cowl induction system was also a popular option among drag racers who wanted to improve the performance of their Chevelle.

Wiring diagram for the cowl induction system

The wiring diagram for the 1970 Chevelle cowl induction system is shown below:

Wire Color Function
Black Positive (+) battery cable
Light Green Engine compartment harness – cowl induction solenoid
Light Blue Engine compartment harness – cowl induction relay to solenoid switch circuit
Dark Green Engine compartment harness – cowl induction relay to cowl induction valve switch
Orange Engine compartment harness – cowl induction valve to ground
Pink Engine compartment harness – cowl induction relay to fuse block circuit
Yellow Engine compartment harness – cowl induction relay to ground circuit

How to install the cowl induction system wiring

The cowl induction system wiring can be installed by following the steps below:

Step 1: Disconnect the negative battery cable

Before starting the installation process, it is important to disconnect the negative battery cable.

Step 2: Install the cowl induction solenoid and relay

The cowl induction solenoid and relay should be installed in the engine compartment. The solenoid should be mounted on the firewall and the relay should be mounted on the inner fender.

Step 3: Install the cowl induction valve switch

The cowl induction valve switch should be mounted on the top of the air cleaner assembly.

Step 4: Connect the wiring

The wiring should be connected according to the wiring diagram shown above. The wires should be routed through the engine compartment and connected to their respective components.

Step 5: Reconnect the negative battery cable

After the wiring has been installed, the negative battery cable should be reconnected.

Frequently Asked Questions

What is the purpose of the cowl induction system in the 1970 Chevelle?

The cowl induction system in the 1970 Chevelle was designed to provide additional air to the engine for improved performance. The system worked by drawing air into the engine through a hood-mounted air induction system located at the base of the windshield.

Was the cowl induction system available as an option for all 1970 Chevelle models?

No, the cowl induction system was only available as an option for the 1970 Chevelle SS models.

What are the benefits of installing a cowl induction system in a 1970 Chevelle?

The cowl induction system provides significant performance benefits by providing additional air to the engine at high speeds. The system can improve acceleration and top speed and is especially popular among drag racers.

Is the cowl induction system difficult to install?

The cowl induction system wiring can be installed by following the steps shown above. The installation process is relatively straightforward and should not be difficult for experienced mechanics.

Can the cowl induction system be installed on other types of vehicles?

The cowl induction system was designed specifically for the 1970 Chevelle and may not be compatible with other types of vehicles.

In conclusion, the cowl induction system in the 1970 Chevelle was a popular optional feature that provided significant performance benefits. The wiring diagram for the cowl induction system is shown above, and the installation process can be completed by following the steps provided. By installing a cowl induction system, the performance of a 1970 Chevelle can be significantly improved.