This is what I like about this forum. The input is great and it makes me work my brain,,, ouch!.
So wrapping the exhaust from the turbo out (maybe even to the end of the exhaust?) will help stabilize the heat in the engine compartment (not too hot) Wrapping the cold side of the intercooler tubing may hurt the actual design of the intercooler system. My question is "was there ever a design process that went into the intercooler system on these old Roadmaster Chassis? or did they do what ever worked out best? Seems the more I work on it the latter holds more truth. In fact I only got into this because I couldn't believe my eyes when I took a factory heat shield from the exhaust pipe near the turbo off to replace the rotted exhaust system. I will get a picture today and lend it with everyone. The piece looks like a grade one student made it. Again,,, it makes me believe the latter holds more truth,,?