Originally Posted by 92eg6
his question was pretty clear in the beginning people just been giving him stupid respones, my opinion is that it depends on the BOV, some will make the same sound any psi some will make a louder sound based on a higher psi. higher psi usally is a longer pssssst then a louder one. its the BOV, the 8psi is tha max a honda engine can take stock, no more, you have to build up to take more, but if i were you unless you get your bottom end built dont go above 5psi or you will run into trouble.
Saying a stock engine can only take 8psi and no more is stupid. You need to do some reading, my friend! There are pleanty of D sereis motors running 10psi or more for at least a year with no problems.
Originally Posted by Kai
Too many variables are involved, mostly dependant on what BOV you are using.
One thing you guys are forgetting is that if you're just putting along, and going easy on it, you may not even be making boost when you shift. But if you are flooring it and making 2psi, it will still make the bov release. Absolutely right that it depends on the bov, as to how loud it will be. If you're making 10-15 psi, it will obviously be louder, or have a longer release... But again, having a car that can make that kind of boost doesn't mean you are making that boost when you shift...