normally there's a screw in fitting on the engine block that the pipe attaches to, normally you should drill them out to 2mm ,WARNING, don't go any bigger than that otherwise you'll over feed the turbo with oil and blow the seals in it,when i got my s12 some one had been playing with it under the bonnet but they didn't know what they were doing they drilled the restrictor out too much and blew the seals in the turbo , so while i had the engine out i priced up a nissan one but it was way too expensive (from memory it was about 80 quid, it was a long time ago tho) so i had a local engineering firm make one up for me it cost 15 quid , becareful tho because the bit that screws into the block has a tapered thread make sure they get this right, a bit of ptfe tape and it'll be fine:)

it should fit adz , i don't see any reason why it shouldn't , as far as i know the only difference between the t2 and the t25 is the compressor wheel and housing size and the way they are attached ie t2 big ass circlip and the t25 is bolt on , but i'm sure you know that anyway:)

T25 has a big ass circlip dude:confused: If you mean the circlip that holds the compressor housing on?

the t25 that i rebuilt was bolt on , it was off a 200 sx:confused:

turbo seals are not normally on start up.normally they are either on gearchange or at idle once hot. remove your oil filler cap and see if the engine idles properly still or if it drops significantly( a slight drop is not too bad). You could have lots of oil pushing through your rocker cover breather pipe and back through your afm to turbo inlet pipe.

There is 4 bolts that fix it to the exhaust housing then a large snap ring is used to hold the turbine itself onto the compressor housing.

ill check the breathers when i get a chance.

mine being a mk1 engine it doesnt have the supply from the side of the block like the mk2 engine, my feed comes from the oil pressure switch T adaptor on the other side.

**edit** i just started it up, it had a small puff on startup, i mean the instant the engine started, then was clear, but smells still of buring oil, what ever is going could still be in very early stages

that could well be it you know, like i said it was a long time ago , 10 years or so:o