NoMeGusta

So recently I had some boost leak amoung with some other problems that provoked me to get a new BPV, so I picked up a TurboXS H25 and installed it 2 days ago, I started off with 4 washers in it, but still heard the hissing as accelerated even more so than the stock, especailly when at low rpm in a higher gear. I tried 3 washers, same thing... so now the question...
Is the hiss I'm hearing cause by the BPV? If so what can I try to fix it? more washers? less washers? or do I just have a small leaking hose?

TIA
Greg

paul_858

build one of those system pressure testing caps and test to see where the leak is if there is one.

NoMeGusta

any info on how to build one anywhere?

paul_858

it's in the tech section I believe, sorry. it's been a recent topic hehe

Skene @ PES Tuning

and check the small vacuum hose that connects from bpv to intake manifold. Those are usually prone to drying out and cracking.

Audi2ptzero

Are you still using the stock airbox?

NoMeGusta

nope, lltek

Audi2ptzero

the spool up and bpv return line you hear out of the new intake tube. The intake tube will make the turbo noise twice as loud then the stock air box.

BTW do you have a boost gauge to see if your are getting the set boost you should be running.