Mailing List flyrotary@lancaironline.net Message #48229
From: George Lendich <lendich@aanet.com.au>
Subject: Re: [FlyRotary] exhaust port design
Date: Sat, 19 Sep 2009 18:55:42 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
 Kevin,
I'm well behind in my e-mails but can't see a response to your question. If that is the stock standard exhaust manifold it appears to be of a poor design - as you probably guessed. Blending would be more appropriate IMHO.
George ( down under)
in my very limited understanding o
f engines, I thought that a lot of attention was spent on reducing turbulent flow in the intake and exhaust streams.  I am surprised to see what the center port of the stock renesis exhaust manifold looks like - kind of a rectangular hole matched to a round tube, with square edges everywhere.  I'm not planning on modifying this, but was interested in other's comments.    kevin


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