The four rotor engine you speak of was also built by the same guy
that built your manifold. Here is a picture of that engine. It has the
same "Y" in the manifold runners.
PL

Nope; different guy.

But it was the same four rotor was it not?

Yes; it is the same four-rotor; tested on the same dyno.  Do you think
the Y in the runners negates the "tuning" in some way?
I was surprised that they didn't make a bit more power.  There may be
some differences in the aluminum side and intermediate housing that they
had made.  I'll check with Scott on that.

BTW; could you please send me the picture of the 4-rotor again.  I've
seen the engine many times but don't have a pic, and I already deleted
the one you sent yesterday.  Thanks.

Al

Yes I do. Any time you have a significant discontinuity in the runner you will get 
wave reflections and consequently interference. 

Did Linden Blue sponsor this engine?

Paul Lamar
 
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