crankcase ventilation idea.....
 

oil pan has a -10 fitting like this.

http://www.streettunedmotorsports.co...bo_fitting.htm

how about using a fitting like this and running a line to a catch can?

http://www.summitracing.com/parts/EA...0ERL/?rtype=10

Will the "pressure" coming out of the engine push the oil from the turbo into the catch can as it might not have a chance to make it to the sump?
Or did you want to use that "T" fitting as a drain from the bottom of the catch can?

I'm going to be building a catch can, and run 2x lines directly off the back of the block (where the stock balance shaft sits), as well as the 2x lines off the head.

i really doubt there would be that much pressure, if there was this would help and let the oil drain back easier. i dont intend to use it as a drain, i dont want and of that crap going back inthe oil. i guess i could carefully tape my block off and drill the block, but its already an assembled short block and i would rather not take the chance of any chips getting somewhere.

You can do this, but you need a one way valve on the bottom of the catch can. You want to avoid drawing up oil from the pan. I have run a similar setup several times in the past with no issue. BTW, this is for a sealed catch can.

ill be running a vta can so i shouldnt need a check valve. the only issue i was worried about was the drain from the turbo being affected.

^
What is a vta can?

BTW, if the can is not sealed you lose the ability to draw vacuum on the block via turbo inlet. This is also a reason for the one way valve.

vent to atmosphere, not sealed it will have a filter on top. like this.

http://www.summitracing.com/parts/MOR-85473/

i dont want any chance of the turbo sucking oil so i dont hook anything up to the intake.

BTW, on the setup shown below for the twinturbo ZR1, I measured 3in of vacuum at the can with 7psi of boost.

http://www.eng.fsu.edu/~jthagard/EVO...ns/f8large.JPG

With the proper can sucking into the turbo should not be an issue. I fabricated my own, but you can buy proper sealed catch cans. Otherwise, you will build block pressure.

http://www.saikoumichi.com/

i have never seen a catch can that actually caught all the oil, i even had an expensive mann hummel unit that everyone raves about that puked oil everywhere. i'd really rather just vent to atmosphere and not worry about it. thats what i did on my sti and it worked great.

Is that top line going to a venturi pipe in the exhaust to create vacuum in the catch can and the sump?

Cheers, Mike

^
Top line went to PCV and bottom was split to the two inlets of the GT3076r turbo's. However, I have seen the venturi ports on the exhaust and understand they are very effective at creating suction. There are a few internet articles on the topic and you can buy the weld on bungs from Summit Racing for cheap.