Turbo sounds

[blkkouki]

What's up guys? I was driving my car the other dat and everything wuz great with no unusual sounds. The next morning, I cranked the car and let it warm up before leaving to go to the store. When I started driving, the turbo sounded like a freakin jet engine when it started to spool. I'm like WTF?!?!?!?!?!?!?! It's super loud on the inside of the car. I popped the hood and checked the intercooler piping to make sure it was secure and I couldn't find anything out of place. The car still boosts fine, but it misfires sometimes. Any suggestions or help guys? I don't know if this noise is harmless or if means the turbo is on its way out. BTW...the motor is a blacktop S14 SR20det.

[S14DB]

Check for vac leaks.

[blkkouki]

Thanx bro. I'll check that as well

[Shawn240]

yeah sounds like some kind of boost leak to me. i dunno though XD

[DemonTello]

open waste gate?

[blkkouki]

No, I'm running the stock wastegate with a Turbonetics mbc.

[DGTRIALS513]

on my last s13 the old turbo outlet studs stretched and started breaking and nuts started backing out which still held boost but lost power. check the downpipe elbow. mine sounded like a big diesel turbo truck but at first started as a loud jet engine noise from the outlet gap. check there too. good luck!
Also my downpipe elbow had two cracks in it which didn't help either.