Hi Paul,

  Is the volume of the plenum chamber on a throttle body/plenum setup
 critical in any way ?

                                  Cheers Chris in NZ

 It has something to do with it. Technically it is called a
 Helmholtz resonator.


 Paul Lamar



 Hi Paul,
     Thanks for all that, very helpful, I don't know
 what I'd do without all this help and
 info from your newsletter, I might have been reduced to
  (dare I say it) putting in a
 piston engine !
         Cheers Chris in NZ.



 Chris,
 This explains it pretty well.
 Paul Lennemann

         Hi!: attached please find a chart about the different results
of different ducts and openings, that would
        apply also to Wankel RCEs' Ports, it's taken from the 2005
edition of the 'BOSCH -Manual of Automobile Technologies',
       so, it's possible that a bigger version exists, sorry, legends
are in Spanish, but Google translate is quite
       good in changing Spanish into English, with just a copy and paste
of text.

            Regards.  Salut


          Jose Gros-Aymerich
Madrid, Spain



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