colditz_II

iTrader: (2)

Please see the following video. The noise happens about four seconds into it.

https://photos.app.goo.gl/IK9l3vhO1teK0Ogg2

It starts being noticeable over 3psi. I don't believe this is knock, but I also have no clue where it's coming from. I also thought it might be boost controller related but it happens with the unit on or off (Greddy Profec). Exhaust leak? Any ideas would be appreciated.

Thanks!

misterstyx69

iTrader: (142)

maybe it's my age..(getting up there) but I can't hear anything.

colditz_II

iTrader: (2)

Thanks for looking! It's pretty faint.. right around the 4 second mark.

Banzai-Racing

iTrader: (11)

It is the boost control solenoid

colditz_II

iTrader: (2)

Phew, thanks. It reminded me a bit of the solenoid I had on my turbo Miata, but had to be sure. I assumed the clicking would stop when I had the boost controller off, or is this the OEM solenoid (is there an OEM one?)?

misterstyx69

iTrader: (142)

Grandpa said it was a grenade and went and hid under the table!

spooldr

Hard to hear it in the video but could be the turbo impeller touching the compressor housing due to a worn shaft bearing.

colditz_II

iTrader: (2)

Thanks but then it would vary in speed. No variance here and the car makes boost just fine.

Cheers