REFLECTOR: Engine cooling NACA scoops

[Dave Philipsen]

I have been struggling with marginal cooling on my STD FG equipped with 
armpit scoops.  The only way I can keep cool enough during cruise is to 
fly above 6000 feet and run LOP.  I have been somewhat successful at 
bringing the temps down by repairing/reworking the baffling and seals as 
well as doing a little rework on the scoops themselves but I'm still not 
happy with it.  I'm seriously thinking about retrofitting it with the 
overhead NACA  vents and downdraft cooling.  My question is:  Does 
anyone have templates that I could borrow/acquire so I don't have to 
guess about the size and positioning?  Also, should I expect to see a 
small improvement in cruise speed with the NACAs after removing the 
armpit scoops?

-- 
Dave Philipsen
Velocity STD-FG
IO-360
N83DP