What is the main benefit of using a cam-ground piston?

The main benefit of using a cam-ground piston is optimized clearance. Cam-ground pistons are designed with an oval shape that changes to a round shape at operating temperature. This design allows for a tighter fit within the cylinder when the engine is at its coldest, helping to eliminate the slapping noise that can occur when the piston heats up and expands. The optimized clearance minimizes wear, improves engine efficiency, and enhances performance by ensuring a better seal with the cylinder walls as the piston expands during operation. This structural innovation allows for smoother operation and reduces the risk of engine knock associated with increased clearance.

In this context, while improved durability, reduced weight, and higher compression are important factors in engine design and performance, they are not the primary focus of what cam-ground piston technology aims to achieve. Instead, the unique shape and fit of the piston contribute significantly to optimal performance and longevity of the engine by managing clearance effectively.