Advanced Parametric Intake Funnel

Boost your classic engine's intake with this 100% parametric intake funnel (velocity stack)! Initially designed for the standard 40 mm (65 mm center distance) of legendary carburetors like Weber DCOE, Dell'Orto DHLA, or Solex ADDHE (e.g., BX Sport, Alfa Romeo, etc.), this model is fully customizable via the MakerLab personalization tool to adapt to any project.

Whether you're looking for a simple straight funnel for your airbox or an experimental design to optimize airflow, everything is just a click away.

✨ Unique and Customizable Features

Thanks to the parametric generator, you can adjust absolutely all dimensions of the part without complex CAD software:

• 📏 Custom Dimensions: Modify the total height, the inlet diameter (flare), the inner diameter of the base, and the wall thickness.
• 🔧 Adaptable Base Plate: Adjust the stud spacing, hole diameter, and plate thickness to match your carburetors or throttle bodies (ITB).
• 🌪️ "Vortex" Option (TMAX Style): Check a simple box to generate twisted internal fins! The generator sculpts blades perfectly flush with the curved wall of the trumpet to create a swirling airflow. You can adjust the number of fins, their thickness, their depth, and their twist angle.
• ⛳ "Dimples" Option (Golf Ball Effect): Activate this option to engrave a staggered pattern of small spheres across the entire inner surface. This aerodynamic effect is designed to disrupt the boundary layer and improve gas velocity (like on a golf ball!).

⚙️ Recommended Print Settings

For use in the engine bay, material and parameter selection is crucial to resist heat and hydrocarbons.

• Material: ASA, ABS, PETG, or Nylon-Carbon (PA-CF). Absolutely avoid PLA, which would quickly deform with engine heat.
• Orientation: Print the part flat on its mounting plate (engine side down).
• Layer Height: 0.12 mm or 0.16 mm maximum to ensure the smoothest possible inner surface (crucial for airflow).
• Supports: Normally unnecessary if the flare (curvature) is not too extreme. If you activate the "Dimples" option, adequate ventilation is recommended.
• Infill: 100% or a significant number of walls (Wall loops: 4 to 6) to ensure strength at the mounting point.

🛠️ Assembly

This model (in its default 40mm dimensions) uses the standard M6 hardware of the relevant carburetors. Feel free to share your creations, your Vortex/Dimples settings, and the vehicles on which you've mounted these funnels in the comments!

Warning: Part intended for track use, competition, or experimental prototyping. Modifying the intake may require a new carburetor adjustment (jets) or ECU mapping.