Hey guys, i'm doing a custom turbo swap and I've came across something that im a bit baffled on..



In the picture above it looks like theres a rad fluid port that goes into the intake manifold somewhere, where does it go? And where do I route it to after the turbo intake manifold is installed. Guys with the rd fabs intake or hahn intake should be able to answer this one.

 

pvc port prob. i have a block off plate welded on mine

 

only tubing you need is one for vacuum to t to bov and wastegate and brake booster hose

 

it is a pcv port. I'm curious myself however, especially since I'll be running a catch can.

 

Will I need this for emissions though? I notice a lot of people with the Hahn racecraft sheetmetal intake have a rubber hose going somewhere from this port.

 

don't need it

 

Block it off, the intake manifold flange can do this, on the new intake manifold. It is not needed.

 

If you block that off you are going to need another way to vent crankcase pressure. The tiny vent on the valve cover isnt enough if you are going to be running any higher levels of boost

 

what if I get the oil cap vent? will I be ok then?

 

we block the one off in my car burned oil like a ****. made a revision and welded a channel into my manifold so that it was there again...no more smoke. then again im an lnf

 

that's what i'm going to do, 15psi-20psi prob. if it's a problem then i'll just get a bigger bung welded on the back of the valve cover and do a catch can deal.

 

There are oil filler cap replacements. Im using this -10 Adapter to an electric vacuum pump

Valve Cover Adapter, AN Valve Cover Adapters: Metco Motorsports

 

I tapped the port on the head and installed a barb fitting and ran the hose to a catch can that I have mounted underneath the intake manifold.