Precision Shaping and Quality Control
At 8:59 in
How Racing Engine Parts Are Made! CP Carrillo Factory Tour & Behind The Scenes (Rods & Pistons)
What happens here
Every piston produced is meticulously designed to be oval and to possess a 'barrel shape' (smaller under the oil ring and larger at the bottom). This precise shaping accounts for thermal expansion during engine operation, ensuring optimal fit and function when the piston reaches operating temperature within the cylinder bore. These complex geometries are critical for durability and performance, allowing the piston to expand into a perfectly round shape at high temperatures and pressures. Extensive measurement and quality checks are conducted at every stage to ensure these exact specifications are met.
Goal: Achieve precise oval and barrel shapes for pistons, ensuring optimal thermal expansion and fit.
Tools and materials
- CMM — Verifying the accuracy of hone gauges and ensuring precise dimensional quality
- Hone Gauge N/A — Measuring the precise dimensions of honed parts
- Starrett Surface Plates Starrett — Providing a stable and flat reference surface for precise measurements
- Finished Pistons N/A — Pistons ready for final dimensional checks and quality assurance
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