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Message-ID: <42A39675.3040506@earthlink.net>
Date: Sun, 05 Jun 2005 19:19:01 -0500
From: David Staten <Dastaten@earthlink.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>, 
 ACRE <rotaryeng@earthlink.net>
Subject: Intake Runner Length - Suggestions
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Polling the group:

What is the recommended or optimum runner length for the primary and 
secondary intake paths, optimized for 6000 rpm (2.17 redrive and 2700 
prop rpm is the plan, with boost).
 
The plan is to use a cut-off portion of the stock lower intake from a 
2nd gen (mates to the block and changes the intake path 90 degrees). 
Attached to this will be intake tubing  (approx 1.5" dia for the 
primaries, 1.75" for the secondaries) that will run to a stock throttle 
body. The primaries will merge into one just before the stock TB, just 
as in the stock manifold. The secondaries will each remain single (again 
as in stock).

Dave