[Land-speed] Insulation on Charge Air duct plumbing. (from mayf, hit delete now, lol)

[drmayf]

Since walling in the motor in the Sunbeam, I find that the engine room 
gets quite hot. I will soon be using an ice water-air intercooler and 
that exposes a lot of duct work to the heat. And since it is aluminum it 
will reheat the chilled air to some degree. Anyone out there using 
insulation on their air ducting?  If so, may I ask what it is and where 
to get it and your experience with it?

mayf