Secraft Suction Funnel for Walbro Carburetors, 20cc–80cc Engines
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Secraft Suction Funnel for Walbro Carburetors
The Secraft Suction Funnel, also commonly referred to as a carburetor velocity stack or intake funnel, is designed for Walbro carburetors used on 20cc to 80cc gasoline RC engines.
This lightweight anodized aluminum funnel helps create a cleaner intake opening at the carburetor while adding a finished, professional look to your gas engine installation. It is available in two striking finishes: Blue or Red.
🚀 Target Applications:
- 20cc to 80cc single and twin-cylinder gasoline RC aircraft engines
- Giant scale aerobatic airplanes, precision IMAC models, and scale warbirds
- Any performance model airplane power plant utilizing standard Walbro WT or WJ series carburetors
Key Features
- Velocity Stack Engineering: Smoothly profiles the carburetor intake mouth to optimize internal airflow tracking metrics directly into the venturi.
- Walbro Drop-In Integration: Tailored with standard multi-bolt pattern spacing to match the primary carburetor flanges used on 20cc–80cc gas engines.
- 6061-T6 Aluminum Core: CNC machine-milled from premium aerospace-grade alloy to guarantee flat sealing lines and zero risk of structural stripping.
- Featherweight Structural Build: Trims additional airframe mass down to a mere 8.0 grams to keep your model's target center of gravity perfectly locked.
- Anodized Finish Protection: Hard-anodized finish lines shield the aluminum alloy shell against continuous raw gasoline splashing and synthetic oil residues.
- Streamlined Engine Packaging: Delivers a highly professional appearance while helping stabilize air intake metrics behind crowded cowlings.
⚙️ Mechanical Aerodynamic Performance Benefits:
Inside a fast-moving aircraft cowl, turbulent cross-winds can swirl directly across a flat carburetor intake mouth, causing erratic air/fuel metering loops and mid-flight engine sputtering. The flared parabolic profile of the Secraft Suction Funnel forces incoming air into a smooth, clean stream straight into the throat. This actively ensures more consistent throttle line tracking, stable idles, and optimal top-end combustion performance.
View Technical Specifications
| Brand Manufacturer: | Secraft |
| Component Classification: | Carburetor Velocity Stack / Intake Suction Funnel |
| Carburetor Compatibility: | Standard Walbro WT & WJ Series Flange Footprints |
| Engine Displacement Range: | 20cc to 80cc Gasoline Power Plants |
| Available Colors: | Anodized Blue or Anodized Red (Select variant option above) |
| Retail Package Quantity: | 1 Suction Funnel |
| Physical Component Weight: | 8.0 g (0.28 oz) Ultra-Lightweight Mass |
📦 Package Includes:
- 1 × Secraft CNC Aluminum Carburetor Suction Funnel
💡 Modeler’s Tips
When bolting this velocity funnel to the face of your Walbro carburetor, ensure your long mounting screws do not clamp down tightly on any adjacent throttle or choke return spring loops. To maintain a completely airtight induction system and prevent lean-running engine locks, verify your fuel gasket orientation path is square and always use a single drop of medium-strength thread locker on the mounting fastener pins during final workbench tracking assembly.
The Gator-RC Advantage: We source a complete selection of matching high-quality hardware parts so you can stock your workspace from one reliable point. In stock and ready to ship out of our domestic warehouse.