FX Engines Composite Carburetor Venturi - 7.0mm

The FX Engines Composite Carburetor Venturi - 7.0mm (part FX658970) is designed to let you fine-tune airflow through the carburettor, helping balance power delivery and runtime on your nitro engine. This 7.0mm insert provides a targeted way to refine performance without changing other engine components.

Tuning Effects

• Increased top-end power potential with larger venturi sizes.
• Smaller venturi sizes enhance bottom-end throttle response and can improve runtime.
• 7.0mm sizing offers a precise adjustment point for varied track conditions.

How It Works

The venturi controls the volume of air entering the engine. By selecting a specific diameter, you regulate mixture characteristics, which in turn affects throttle feel, fuel efficiency, and power across the rev range.

Suggested Compatibility

• FX engines (7.0mm venturi size as appropriate)

Constructed as a composite venturi for the FX platform, FX658970 is a practical tuning option for racers and enthusiasts seeking consistent, repeatable setup changes.