REFLECTOR: Cooling the engine

[Doug Kanczuzewski]

I had been struggling for awhile with high temps, tried all things myself. Exhaust wrap, ceramic coating exhaust, scoop on naca, lower cowling opening (around turbo, which helped with melting control cables), electric fan in cowling,  but how I finally got mine worked out on the IO-540 was bite the bullet and get the fuel servo output increased. More fuel flow.

Doug

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Ron Velocity XLFG
Sent: Monday, March 26, 2012 8:57 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Cooling the engine

Well I have to high engine temps and I am working on reducing them.

Exhaust wrap I have read that they are  good at keeps the heat out of the cowling
             Bad may cause a crack in the pipes any one tried this method
with success of failure?

I have a two in to one exhaust that goes next to the oil pan .
First I was going to wrap the exhaust pipes but now I may consider
making two straight pipes out of the engine instead of the two in to one.
My hope would be cooler engine. any thoughts. I did the two in to one
with the idea of reducing engine noise but if it is adding heat it must go.

Tried a few mods to the nacas. None helped most made it worse for
cooling.  I had fans to help in cooling on the ground I removed them
and it helped in the air but now I must get in the air  a little more quickly now.

I was going to add a cowling flap I have heard this would help any thoughts?


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