REFLECTOR: Uneven Cylinder Cooling

[Andrew Judge]

Try two vortilons in front of each naca. I had the same problem. 

Andy

----- Original Message -----
From: Richard J. Gentil [mailto:richard at naples-air-center.com]
Sent: Sunday, March 11, 2012 01:02 PM
To: reflector at tvbf.org <reflector at tvbf.org>
Subject: REFLECTOR: Uneven Cylinder Cooling

I'm about 20 hours into the flight testing of my SERG with the dual overhead  NACA cooling plenum on a Lycoming IX-390-X and three bladed MT Prop. 

I have added aluminum deflectors in the runners of the plenum to direct more air to the number 3 & 4 cylinders and made sure that the plenum does not have any air escaping around the outer edges of the cylinders but no luck so far. 

Here are the numbers  getting on the engine: