the Coates Spherical Rotary Valve System creates "a quieter engine with higher specific power output and longer life than conventional poppet valve engines due to better 'breathing' capability and higher speed capability. Is this the real deal or has it succumbed to reliability problem.
By: Tech Planet
Title: STRANGEST Engine PART Ever MADE
Sourced From: www.youtube.com/watch?v=U4WHSPt142o
Did you miss our previous article...
https://virallyfe.com/future-tech-now/shokz-openfit-review-all-the-ambient-sound