Velocity Stacks - What they do and how to make them... a.k.a. Air horns, ram pipes, air trumpets....

I need to make some new velocity stacks for my individual throttle bodies as I had to break the last ones.... I walk through each step I take to research, design and manufacture some velocity stacks for my motorcycle individual throttle bodies.... If you'd like to support the channel please check out the Patreon... https://www.patreon.com/Makingformotorsport 00:00 Introduction 01:09 What do they do? 03:12 What is pule tuning? 05:02 Taper or Parallel 06:28 Design and Making 09:13 Fitting and Testing 11:30 Summary Link to the research paper shown in the video... https://www.researchgate.net/publication/296662381_The_Effects_of_Intake_Geometry_on_SI_Engine_Performance Link a great piece of practical testing by the legendary Dave Walker of Emerald showing maybe taper isn't all that.... https://www.emeraldm3d.com/articles/emr-adj-length-intake/