Mailing List lml@lancaironline.net Message #45146
From: Adam Molny <Adam@ValidationPartners.com>
Sender: <marv@lancaironline.net>
Subject: RE: [LML] Removing ram air duct - Legacy
Date: Sun, 02 Dec 2007 11:20:49 -0500
To: <lml@lancaironline.net>
With ram air open I would see a 1.5 inch increase in MP but
with it cut it still gets 1.3 inches.  - Art Jensen

What would MP be with nothing at all connected to the throttle body? The
IO-550N engine air intake is located in the high-pressure side of the intake
plenum. Common wisdom says that a ram air duct facing into the slipstream
boosts MP, but we already have two big scoops, namely the cooling inlets!
Pressure rise from a ram air duct should be nearly identical to the air
pressure inside the cowl. Anyone have any thoughts?

I'm seriously considering leaving off the ram air tube altogether. Now I
just need a way to keep birds and big rocks out of the engine. -Adam Molny, unfiltered
(me, not the plane)


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