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Model ID: DY68-B
The DY68-B showcases Feiya’s advanced CNC Contouring capabilities, a process that transforms a standard casting into a high-performance component. While casting provides the general shape, it often leaves behind rough surface textures and geometric inconsistencies. We utilize state-of-the-art 5-Axis CNC Machining Centers to fully contour critical areas like the combustion chamber and port runners. By driving a ball-nose end mill along a complex 3D toolpath, we remove the "skin" of the casting to reveal the theoretically perfect geometry designed in CAD.
The primary application of this technology is Combustion Chamber CNC Machining. In a multi-cylinder engine, slight variations in cast chamber volume lead to uneven compression ratios and vibration. Our CNC contouring ensures that every combustion chamber is mechanically identical in volume (to within 0.1cc), guaranteeing perfectly balanced engine firing. Furthermore, we apply this contouring to the intake and exhaust ports. This automated "porting" process removes casting flash and smooths the airflow path, eliminating turbulence and significantly increasing the engine's volumetric efficiency (VE) and horsepower potential beyond what a standard cast head can achieve.
