Sr20det Turbo spooling noise, is it supposed to be loud?

[sepulchral]

Today i took off the stock rubber intake tubing and i cut off the extension on it that would go to a recirculatory BOV, then i sealed it shut pretty good, put it back on.. Now when my turbo spools its really loud.. could it be a leak or something? car seems to pull hard still

[Dutchmalmiss]

does it make a sort of whistling sound? are you sure you hear only the turbo spooling?

[sepulchral]

ya its like a whistle

[khoadogg]

Won't you surge if there's not BOV?

[sepulchral]

i have a bov

[driftstyre]

Sounds like there might be a leak. Do you have any way of pressure testing the post-compressor pipes? If not just seal the compressor inlet with a few layers of thick plastic and a hose clamp. Hook up an air compressor (something like a blower attachment) to one of your vacuum lines anywhere before the throttle body and pump the compressed pipes to 2 bar. If there is a leak you will hear it.