hey everyone, wander if you guys can help, a ford fiesta on an 03 plate came to me the other day needing an engine change due to blowing its rings, turns out the owner put waaaaayyyy to much oil in the engine and as you can expect it went bang.
i have changed the engine and im thinking the turbo has also had it,

heres the thing,

the engine starts and idles fine for about 30 seconds, pressure starts building up in both the head rocker and sump, smoke comes out of the breather and also the maf sensor!!!
at one point it got so much pressure it ejected its dipstick and spewed oil everywhere. im not running it anymore and dont want to risk running it without the turbo.

am i on the right track or is there anything else that could cause this?