Grinding noise rb25det

[KLA33E]

Hello.

I have a strange noise that's coming from my R33. It can be heard well when the car is idling. you don't hear it when reving or when your inside the car, only when you stand outside by the engine compartment.

It sounds to me like a metallic grinding noise, coming from the podfilter. 

This didn't occur recently though I've driven the car for 8 months since this started. It haven't gotten worse or better, what could it be?

I will post video of the sound so you guys can hear it.

2nd video is me recording just next to the podfilter.

IMG_8199.MOV

IMG_8820.MOV

[NEO25T]

Sounds like a pulley or ac tensioner bearing.

Easiest way to rule those out is by taking the fan belts off one at a time.

I would still take the intake off the turbo just to have a look anyway