Mailing List flyrotary@lancaironline.net Message #49294
From: Rino <lacombr@nbnet.nb.ca>
Subject: Intake manifold runners
Date: Sat, 5 Dec 2009 10:35:28 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
What would be the prefered runner length to get the maximum power at about 6200 rpm on the Renesis (6 intake ports).  Is this a trick question.  Well, it is not a trick question , I want to build yet another intake manifold.  This is becoming a full time hobby for me.
 
I will go for Ed's suggestion for 1 1/4" id for the two primaries and 1 1/2" id for the two secondaries.  Now tor the length?
 
The present secondary runners are too large.
 
Rino Lacombe
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