Cold Weather=better boost experience right? Somewhere I read that you should let your car warm up before boosting happily,right? I can't remember why do

Anyways nowadays my BOV will not sound off since it's been colder why? also it's a type s the other day i took the the vacuum hose off it and put it back on. It goes on top port right? I can't remember how it goes

 

Every car should be at its normal warm operating temperature before you get on it, but especially turbo cars. When cold, the pistons virtually rattle around inside of the block, so if you put high cylinder pressures into there, you're going to blow your piston rings. The engine oil also needs to be at the warm temperature before it starts lubricating well.