Hi. I am currently prepping for my turbo install, but I want to make sure I know what all the holes are on my turbo and manifold. I am not exactly certain which ones are useless and need to be plugged, and which ones are actually needed. I am hoping you can can help me identify them. I have taken pictures of all the holes I need identified.
Btw, this is an IHI RHB5 VJ11 turbo. So on to the pictures.

Turbo:







Manifold:






Turbo:
1.
2.
3.
4.
5.

Manifold:
1.
2.
3.


Thanks for your time, and hopefully this will help out some one else as well.

 

Turbo:
1.o2 sensor
2.for heatshied. dont need it.
3.red x
4.red x
5.water lines, in and out and youdont need them

Manifold:
1.heat sheild dont need it
2.heatshield dont need it
3.for you egr ----. you dont needit unless you putting it back on the stock motor it came from(ford probe i assume?). maybe you can make an external wastegate fit on that but otherwise justplug it up you dont need it.

 

Turbo:
1. oxygen sensor
2. heat shield mount
3. oil drain
4. water
5. water

Manifold:
1. heat shield mount
2. heat shield mount
3. EGR

Your having a friend who has experience help you...i hope.

 

Thanks, but if 4 and 5 are the in and out for the water, and 3 is the oil drain well then where does the oil feed go?

 

oil feed in green

 

Thanks a lot guys . Does it matter which one is water in and which one is water out.

 

^^^ No it doesn't

Also for the water lines. It's better to have it on it's own isolated circuit.
Like with a small electric water pump and a front mount B&M cooler.
Keeps the center housing a LOT cooler than if it was hooked up to your Car's coolant system. Somme ppl report having the turbo water getting no warmer than 30*C (where your car's temp is over 100*C)