Fittings and adapters
Inline Intake Whistle Resonator
- Bounding box
- 55.0 × 55.0 × 70.0 mm
- Engine
- Precision B-rep
- Parameters
- 9
- Published
- September 11, 2026
Download
Free to download and use. See the terms.
The prompt
Create a **3D-printable automotive intake whistle/resonator** designed to fit inside a car's intake tube. It is NOT a real turbocharger and should have no moving parts. Design it as a compact cylindrical inline airflow insert: * Overall length: **70 mm** * Outer diameter: **55 mm** * Main airflow passage diameter: **45 mm** * Wall thickness: approximately **2.5–3 mm** * Both ends should have smooth, rounded transitions so airflow passes through easily. * The inside should contain a small **whistle chamber/nozzle** that uses the passing intake air to create a noticeable turbo-like whistle. * Keep the central airflow path mostly unobstructed so it does not significantly restrict the intake. * Add a small internal whistle opening angled toward the airflow. * Make the whistle chamber integrated into the outer wall rather than blocking the main passage. * The design should be **one-piece and printable without supports if possible**. * Use smooth surfaces and rounded edges. * Include a flat orientation suitable for FDM 3D printing. * Export as a **STL** suitable for an Ender 3 V2. * The model should be strong enough for automotive intake use. * Design it for **ABS/PETG**, not PLA. * Do not include logos, fake turbine blades, electronics, or decorative parts. * Provide exact dimensions and make all measurements in **millimeters**. The goal is a small insert that creates a **whistling/turbo-like intake sound from airflow**, not additional engine performance.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall Length | 70 mm | 40 – 120 |
| Outer Diameter | 55 mm | 40 – 80 |
| Main Airflow Passage Diameter | 45 mm | 25 – 75 |
| Whistle Chamber Radius | 1.25 mm | 0.5 – 2 |
| Whistle Chamber Length | 8 mm | 4 – 20 |
| Nozzle Width | 2 mm | 0.8 – 5 |
| Nozzle Height | 1.5 mm | 0.5 – 4 |
| Nozzle Angle | 35 deg | 15 – 60 |
| End Transition Radius | 2 mm | 0.25 – 4 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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