How Carburetors are Made (Basically Magic) - Holley Factory Tour | Smarter Every Day 261

Summary by Krater

Destin from Smarter Every Day visits the Holley manufacturing plant in Bowling Green, Kentucky to see how a high-performance carburetor is built from the ground up, following the machining, assembly and flow-testing of components like the base plate, main body, fuel bowl and choke housing.

From the video

Answers: How is a carburetor manufactured?

• carburetor manufacturing
• CNC machining of aluminum blocks
• carburetor circuits
• idle, transition, and main jet circuits
• choke housing assembly
• fuel bowl and float assembly
• carburetor flow testing

What it concludes

• Carburetors atomize fuel within internal channels rather than injecting liquid fuel directly into the motor.
• Carburetors are manufactured from solid blocks of aluminum machined by robotic CNC mills to create precise internal passages and fuel paths.
• Carburetors require three distinct circuits (idle, transition/intermediate, and main jet) to feed fuel properly across varying throttle positions.
• Brass is used for carburetor components because it does not corrode and can be broached very accurately.
• Every Holley carburetor is 100% flow-tested using mineral spirits and gasoline equivalent gravity before packaging.