This is very similar to our wrapped tuned muffler concept.
Probably a better name is spiral tuned intake manifold.
I am not sure who makes this. Could be Volkswagen.
Does anybody recognize this engine?
 
Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.