02-19-2021, 03:39 PM
(02-18-2021, 09:41 AM)Tev62_imp Wrote: The best article I have ever read about the motorcycle airbox is from California Scientific, super interesting and if you want to go full Engineer mode its all there. This is why I leave all my bikes pretty stock and why I am happy that a Honda filter and airbox will be just fine for me.
https://motorcycleinfo.calsci.com/Airboxes.html
Thanks for the link to the article, it reminds me of the Toyota famous "T-VIS" (Toyota Variable Intake System).
What the T-VIS does is varying the air intake runner length in order to get more torque at certain rpm. It uses a butterfly plate to close one set of intake runner and opens them when more torque is required at certain rpm (air resonance).
By the way, this system was designed by Yamaha (their musical department).
Regards
Alain
