Orma wrote: > would work to keep the cowling cool. No one has suggested any thing else > that seems practical and simple.
I'd buy some 1/8" Fiberfrax and the thinnest stainless you can find (it's terrible at conducting heat) and epoxy the stuff to the cowling in the vicinity of the turbo. You'll probably have to run some screws or rivets through at the four corners in case the epoxy loosens up at high temp, but probably not. The trap door that somebody mentioned is usually put in the top part of the cowling, hinged at the forward edge and hanging down, so when you switch the engine off the door falls open, and when you start it the door is blown shut. Pretty neat idea. If I didn't have plenums I'd be doing that. I may do it anyway, between the plenums. Then I could use it to check and add oil too, with no door to worry about! Might need a magnet to set on top in case of rain when parking outside though... Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
