REFLECTOR: Cooling the engine

[Ron Velocity XLFG]

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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