Stoooopid question time. Engage bigdavie mode. I'm joking mate, learning is what makes life fun []
So why would you want to wrap a turbo?
Now I understand why you wrap headers and exhuast componentary - keep the heat in as hot gas flows more freely. Now I also understand that better gasflow in the turbo would be good. BUT, if you wrapped a whole turbo then surely you'd also be heating up the intake side more than normal too? And as we know upping the intake temps is about as useful as replacing the pistons with ice lollies.
So what have I missed?