(Ignore all the zip ties and other things wrong lol it's just temporary as I figure this out. It's on a MAFT pro so boost leaks wont really affect the noise)
I've recently put together this 7m after it sat for about a year. The head was off of it to replace a head gasket that had not blown (preventative maintainance). I picked it up from my friend who owned it before and hes the one that took the head off.
Before the head was removed it ran fine with no noise.
Oil pressure is around 6 at idle
The strangest thing about the noise is that it does not start happening until the car warms up. After about 3 minutes of running at idle, the noise starts. The oil was changed twice before I ran it just to ensure it was clean. There was never water in it.
I'm currently doing a valve adjustment as several were loose and some were tight. That could be the cause of the noise but I'm skeptical.
Let me know what you think gang!