Which component is made of plastic, aluminum, or carbon fiber?

Which component is made of plastic, aluminum, or carbon fiber?

• A. Throttle body
• B. High performance intake manifold
• C. Ductwork
• D. MAF sensor

Answer: (C)

Air-path components in an engine’s intake system are designed to be lightweight, heat resistant, and easy to manufacture into smooth shapes. Ductwork—the network of tubes and hoses that carries air from the intake to the throttle body or manifold—is commonly made from plastic, aluminum, or carbon fiber for these reasons. Plastics keep cost and weight low and can be molded into the complex curves air needs to travel through; aluminum provides durability and good heat performance with light weight; carbon fiber adds maximum stiffness and the lowest thermal mass for top-end setups. These material options are standard for ductwork because they balance performance, manufacturability, and cost. In contrast, throttle bodies are typically metal or plastic, and intake manifolds, while occasionally made of plastic, aluminum, or carbon fiber, are not the primary air-path conduits themselves. The MAF sensor housing is usually plastic, not carbon fiber. So ductwork best aligns with being made of plastic, aluminum, or carbon fiber.

Air-path components in an engine’s intake system are designed to be lightweight, heat resistant, and easy to manufacture into smooth shapes. Ductwork—the network of tubes and hoses that carries air from the intake to the throttle body or manifold—is commonly made from plastic, aluminum, or carbon fiber for these reasons. Plastics keep cost and weight low and can be molded into the complex curves air needs to travel through; aluminum provides durability and good heat performance with light weight; carbon fiber adds maximum stiffness and the lowest thermal mass for top-end setups. These material options are standard for ductwork because they balance performance, manufacturability, and cost. In contrast, throttle bodies are typically metal or plastic, and intake manifolds, while occasionally made of plastic, aluminum, or carbon fiber, are not the primary air-path conduits themselves. The MAF sensor housing is usually plastic, not carbon fiber. So ductwork best aligns with being made of plastic, aluminum, or carbon fiber.