question about 1JZ's turbo
 

Hi guys
I had bought the Soarer JZZ30 about 2 months ago. So excited as it is my first turbo car. Please excuse for my lack of turbo tech.

The question that i want to ask is that is it normal to have whistling noise everytime the turbo kicked in or spooled up. I am pretty sure it was not cause by the BOV. As I did a bit of search and people advice to check hoses around the turbo's area,since there may be leaks somewhere. I did performed the inspection, however they presented no signs of leaking. Please advice, what should i do? Thanks in advance

post a video with good sound.

do you have a boost gauge? How much boost is it making currently? Stock intercooler? Could be boost leaking out of poorly connected I/C piping, a leaking BOV, or leaking wastegate hoses. It's either that or you're just hearing normal spool up. a vid would be helpful though

Thanks for the advice guys. Currently my car is completely stock. I will try to record a video either today or tomorrow.

Cheers

I have a feeling what your hearing is the turbo's spooling, which as Stick said, is normal. Had people tell me they could hear my turbo from several blocks away.

http://www.youtube.com/watch?v=H5riFiyYqos

Hi guys
Above is the link to my video. Sound is not that great as i recorded from my iphone. Hopefully it is just a normal sound when turbo spools up( lack of experiences:(). One of other thing that i had noticed was that at idle, i revved the car pass the kick-in rpm (~3000 rpm or so), that whistling noise did not exist. Sorry guys, as i am still learning more about turbo engine, please excuse for my newbie. Thank you :)

whistling most commonly signals boost leak.

check hoses throughly.

check the plastic boost pipe that runs from the intercooler to the engine

Did you mean that i have boost leak somewhere ???