After the idle test I moved on to the 60 mph roll charge piping test. The probe was still in the same spot (approximately 14" from the turbo). I drove approximately 5 miles just like the last test and held the speed to as close to 60 mph as possible.

An immediate reduction in charge piping temp was noted, going from a peak idle temp of 132 degrees to 101 degrees at 60 mph. This showed a total reduction of 31 degrees. A reduction was shown across the board except for my oil temperatures that stayed about the same.



Now if you remember by under hood temps at 60 mph (after turbo blanket) was 59 degrees, this shows that the charge piping is hotter then the under hood temperature by 42 degrees. Now I know that the reflect a gold heat tape is supposed to radiate heat away from whatever it is wrapping, but it would also have some insulating properties about it as well. Now I'm not sure how much heat the charge piping is capable of radiating before the intercooler, but I would bet that it wouldn't radiate the heat enough to lower the temperature by 43 degrees to be lower then the under hood temps.

Conclusion: so far I'm not seeing a reason to wrap the charge piping coming from the turbo to the intercooler, as it will hold more heat in then it's radiating. It would be better to leave it unwrapped as the under hood temperatures are 42 degrees cooler then the charge piping between the turbo and intercooler.