pic 1 certainly looks like a journal bearing from a turbo. Is the head still on the car? These things love to eat pistons, and with that bearing in the pan this car must have lost a ton of oil FAST

 

It does look like that but how would it get into the pan?
is part of it brass? it looks like it was to connect into something and avoid a dielectric connection? with the brass?
And Welcome to the site!

 

x2 on the journal bearing having just replaced mine.

 

yup it was just hard to imagine none of them getting stuck..

 

Update: took the turbo apart, and those chunks of metal are not from inside.

Any other ideas?

 

Any chance this engine has an appetite for turbos? Possible that pieces are from a previous unit.

 

That could be possible, but the more I look at these parts, the less I believe they're from the turbo. When fitted together, they appear to have slots for a tab of some sort. Imagine the seat where the main or rod bearings go, with notches on opposite sides, only much smaller. The inner surface diameter when put together measures approximately 1/2 inch, or 10mm. I added better close-ups so you can see them better.

(Again, I have already inspected the bearings and replaced them, so there is 100% no way that's where they came from, they just remind me of them)

 

See if you can fit your pieces to the pics here
http://www.3sgto.org/f2/cutaway-td04-turbo-pics-iniside-6879.html

or maybe when Olaf was fitting the oil pan on the assembly line, he tossed in a handful of scrap from an old snowmobile engine...."let 'em figure that one out!"