Ken Powell wrote:

Tracy,
Please re-educate me.

BIG SNIP---------

Tracy Crook wrote:

Poop!  Why do I get sucked into these debates!

ANOTHER BIG SNIP--------
Tracy,
And I thought that I understood this stuff.  I have studied your newsletter for hours!  

Actually, what I didn't understand was what a plenum was for.  

Thanks to Paul and Tracy for the 'rest of the story'.

Ken Powell

As you can see from the 4 rotor pictures Ken you don't need a plenum
as your throttles are right up by the rotor housing in each of the two runners.
The plenum is used when you want to use only one throttle body 
or a mass airflow sensor as Mazda needs to do on street cars 
for various reasons.

Here is a picture of the slide throttle for the 4 rotor.

I expect great things from your peripheral port engine when you get it
running. Did you cut those rotor housings yet?

Paul Lamar
 
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