I've noticed a few cars out at the local meets that have had bov's welded to the hotpipe and the cold pipe on SR swaps. I've asked a few of the owners why they choose to install the bov on thier choosen side and have heard a series of different reasons to which I know which is better. Is there a concrete reason to install the bov on the hotpipe vs the coldpipe or vise versus? I've also been told by one shop to do the hotpipe and the other shop to do the cold pipe. Im sure each person/shop has a legit reason, just wanted to know which would yeilds the better benefit...or if it even matters. Im looking for functionality(is that even a word)reasons.

 

honestly it doesnt matter, I guess in a very minute way its better to mount it closer to the TB for better response.

 

So the whole compressor surge/hotpipe reasoning isnt a real issue having the bov close to the tb install of the turbo? I believe I was told that you will always have some surge, but putting the bov next to the turbo would greatly reduce this.

 

ok the only reason to put the BOV as close to the throttle body as possible is to try to minimze the off throttle hestitaion and stumbling of having an open air BOV on a MAF motor. The car tends to not want to die after you come to a stop and try and let the car idel. With the Bov on the hot side you get more stumbling when you blow off and more chance of the car wanting to try and die when the engine comes down to idel after just blowing off. Having it closer to the throttle body doesn't elimiate any of this but greatly helps reduce drivability issues with having an open air BOV. the ECU tends to not be as pissed off with missing the extra air.