drill/tapping S1 block, need to know ASAP!!!

[VL Berlina 5speed]

.......need to know by tommorow.......the sump will be off
ive searched though JC and CT and i cant find a straight awnser, just the crap of get a S2 block etc.

i need to know how big do i drill and tap, how deep (ive heard no more then 3mm)
and which ones, heres a few pics to point on

PINK- has thread and looks like its been drilled as it goes all the way into the block
GREEN- has thread but is blocked
YELLOW- has thread but is blocked
BLUE- not sure
and what is each one used for, ie oil drain, oil feed etc


inside the pink ring

[vnv8driver]

what exactly are you drilling them for?

[Bax]

Oil feed/return and Water feed.

I'll have a search for a pic. Oil return is actually that massive plug to the left on the bottom, looks like you have a plate over it.

Oil feed is above that plate. that I mentioned above. Water feed I believe is blue. But I need to find the picture to confirm.

[VL_5SPEED]

what exactly are you drilling them for?

So he can turbo charge the series 1 rb30. Series 2 rb30 motor had the holes tapped and plugged with bolts from factory.

[VL Berlina 5speed]

well ive got it figgered out now, with a little help from a mate and r31skylineclub, its sused

PINK is oil feed
bellow the pink is a flat area which is the oil drain. that needs drilling and tapping
BLUE is water feed.
water return is near the throttle


good help over here with pics too
Turbocharging - R31info

[Bax]

Sorted. Yeah water return you just plug into one of the heater pipes. T-piece it in.