REFLECTOR: Engine air intake

[Kathy Cook]

Kerry, a good intake system is indeed much more complicated than would first appear.  I have a standard elite retract with an IO360 and I am seeing between a half a psi and .8 psi boost or positive pressure on the down side of the filter between the fuel servo  and the filter using a very sensitive gauge.  There are a couple of given facts to consider: first, take your intake air from the high pressure area preferably under the wing, versus under the belly, to prevent debris from the nose tire being thrown into the intake. second: the size of the opening is variable depending on speed, bigger for slow speeds, and smaller as the speed increases.  Therefore, any fixed opening is a compromise. third: it is very important that the volume of the intake chamber increase after the opening by 3 or 4 times the size of the opening so that the pressure inside the intake system will rise and be smoothly directed through an efficient air filter.  I am using a
 K&N filter and 3" scatt tubing.  If you have any questions, let me know and we can talk on the phone and I can send a couple of pictures and possibly some measurements.  Lynn Cook
 
--- On Mon, 9/19/11, Kerry Woods <kwoods241 at att.net> wrote:


From: Kerry Woods <kwoods241 at att.net>
Subject: REFLECTOR: Engine air intake
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Date: Monday, September 19, 2011, 6:17 AM



There has not been any mention of what works best for intake air. If someone has found a good way to pressurize the intake would they share what they have done.
Thank You
Kerry 
_______________________________________________
To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector

Visit the gallery!  www.tvbf.org/gallery
user:pw = tvbf:jamaicangoose
Check new archives: www.tvbf.org/pipermail
Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20110919/b6a6775b/attachment-0001.htm>