First turbo setup. What are these spots on the turbo for?
 

I know one if for oil feed, and one is for oil return. What are the other two for?

https://i6.photobucket.com/albums/y2...g684/spot4.jpg
https://i6.photobucket.com/albums/y2...g684/spot3.jpg
https://i6.photobucket.com/albums/y2...g684/spot2.jpg
https://i6.photobucket.com/albums/y2...g684/spot1.jpg

Re: First turbo setup. What are these spots on the turbo for?
 

1. water line
2. oil in
3. oil out
4. water line.

Re: First turbo setup. What are these spots on the turbo for?
 

"Oil in" should be positioned at the top of the turbo... "Oil out" is gravity fed back to the pan.

Re: First turbo setup. What are these spots on the turbo for?
 

So I can hook up water lines to help cool it also? Does this work well or does the oil work good enough?

Re: First turbo setup. What are these spots on the turbo for?
 

Oil CAN do the trick on it's own, but you have to allow for longer cool down times than with both. Also depends on how much hot air you shove through the turbo as well. The higher the psi, the hotter the air usually becomes. Nuthin for nuthin though, if ya got it, use it. Never hurts to have additional cooling.

Re: First turbo setup. What are these spots on the turbo for?
 

running the water helps the turbo run a little cooler and last a little longer, but i wouldnt hesitate to just not use the water lines, its just another thing to break/fail in a high heat area around the turbo. Also most high performance turbos dont use water cooling either. Its a personal choice, you can do it either way

Re: First turbo setup. What are these spots on the turbo for?
 

Well I'm running 10.5:1 c/r, so boost will only be about 5-8psi.