Induction Secrets Part 7: Golf Ball Dimples, Turbulent Boundary Layers & Optimal Ra #enginescience

Debunk one of the biggest myths in performance engine building with Jake from Bain Racing in Part 7 of our advanced induction series. Discover why golf ball dimples absolutely DO NOT work in cylinder head ports despite what internet forums claim. We explore the science behind turbulent boundary layers, explain how dimples actually INCREASE skin friction to reduce pressure drag behind golf balls, and reveal why this aerodynamic principle fails completely in internal engine flows. Learn the optimal Ra (surface roughness) values of 100-200 for maximum port performance and understand active boundary layer conditions that actually improve flow in confined spaces. This video covers: Why golf ball dimple theory fails in cylinder head ports How dimples increase skin friction but reduce pressure drag in external flow The difference between external aerodynamics and internal fluid dynamics Turbulent boundary layer behavior in confined port geometries Optimal Ra surface finish specifications for maximum flow Active boundary layer conditions and pressure recovery principles Real flow bench data proving why smooth ports outperform dimpled ports For engine builders tired of internet myths and ready to understand real fluid dynamics. Join Jake from Bain Racing as we separate aerodynamic fact from forum fiction with actual science and testing data.