Custom Airbox and Pressure Differential Sensor Integration
At 2:05 in
Dale Earnhardt Inc's Secret Weapon of Restrictor Plate Domination: The "Wind Tunnel Engine"
What happens here
The speaker details his role in fabricating the "hard parts" of the system. This involved creating an airbox assembly that could sit within a race car's hood space. The goal was to move air through a cowl, down to the carburetor, and out through the tailpipes. Gino was responsible for the electronics, designing a "pressure differential" system using small brass tubing with tiny holes. These tubes were connected to a system that measured pressure differences, translated into data using a MathLab program. The airbox also featured adjustable panels (Slugger's Insert) to fine-tune airflow, and the inner shapes of the airbox were extensively modified to optimize flow characteristics.
Goal: Fabricate the physical airbox structure and integrate sophisticated pressure sensors to measure airflow dynamics through the cowl and to the carburetor.
Tools and materials
- Adjustable panels — Modifying airflow within the airbox for testing
- Aluminum sheet metal — Constructing the custom airbox
- Brass Tubing — Creating the pressure differential sensors
- Computer — Interpreting sensor data
- Drill — Drilling tiny holes in brass tubing for sensors
- Fabrication tools — General construction of the airbox
- Soldering Iron/Torch — Soldering brass tubes together
- Standard air cleaner — Basis for some airflow testing
- Transducers/Sensors — Converting pressure differentials into electrical signals
- Wiring/Cables — Connecting sensors to the data acquisition system
What they say
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What they say
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