hey guys i kind of a newb to turboing a de. i have a u12 in my sentra but im boosting my lil bro p10. the problem im runing into is the oil/water feed lines. can someone tell the the size thread on the turbo for the oil and water fittings. also does anyone know the size thread on the oil pressure switch to find a t for? and finally. anyone that has tapped the block can you tell the the size tap and drill bit you used and where you found the fitting for that. thx guys all the help is appreciated and i did search but cant find what i need..

Try harder then. Its all there just gotta look closer.

Heres a start...
http://www.sr20forum.com/turbo-guides/89944-long-lost-t25-t28-parts-list-thread.html

and this...
http://www.sr20forum.com/search.php?searchid=3692940

so i drilld and tapd the block but i kind of ran into a problem i think. when i drilld the block i drill through (what looks like an oil jounal) on the block itself. is this a real bad thing?

it looks like it would be pretty hard to avoid drilling into it.. so im sure this has happend to someone

what were you drilling for? oil or water fittings? the oil return is almost impossible to screw up, the feed comes from the oil pressure sender. The coolant feed and return I drilled and tapped into the inlet and thermostat housings.

the only thing i drilled was for oil return. i teed into the intake for water feed/return..