Blown Headgasket or Blown Turbo?

[2plus4plus0eq6]

Sorry I don't mean to hijack your thread, but can someone explain why the oil catch can is needed in dumb terms for me?

Its just trying to understand because I tried starting up my SR20det after I swapped it and oil was coming out of the turbo into my intercooler piping and onto the floor. I consider that a lot when I see a puddle on the ground.

I was thinking I needed a new turbo or new seals for the turbo I have, but if this is possibly not the problem, then I'm all ears.

Thanks