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-   -   venting crankcase (https://www.performancetrucks.net/forums/forced-induction-159/venting-crankcase-526601/)

02_Orange_D1SC Feb 14, 2014 12:44 PM


Originally Posted by Ferocity02 (Post 5192308)
I use the stock PCV system with a check valve and catch can inline. The check valve prevents the boost in the intake from going through the PCV lines into the crankcase.

And then I run a single 3/8" line from the passenger side valve cover to the turbo inlet pipe.

I was worried that the single 3/8" line wouldn't be enough to vent the crankcase while in boost, but it seems to be working fine. I've never pushed out the dipstick. I may upsize the line anyways and plumb it from the oil filler cap to the turbo inlet.

im gonna do the same setup as this looks easy and cheap

BlackGMC Feb 14, 2014 12:59 PM

2 Attachment(s)

Originally Posted by Ferocity02 (Post 5192308)
I use the stock PCV system with a check valve and catch can inline. The check valve prevents the boost in the intake from going through the PCV lines into the crankcase.

And then I run a single 3/8" line from the passenger side valve cover to the turbo inlet pipe.

I was worried that the single 3/8" line wouldn't be enough to vent the crankcase while in boost, but it seems to be working fine. I've never pushed out the dipstick. I may upsize the line anyways and plumb it from the oil filler cap to the turbo inlet.

I did the same thing. Works great for me.

Here is the check vale i used
Check Valves


Catch can

Attachment 105761




Fresh air side hooked in pre turbo I had another check vale there originally but i removed it after being told it was bad idea. Which it was a bad idea.

Attachment 105762

timmay208 Feb 14, 2014 01:22 PM

hard to see but does the line off the turbo go to the bottom fitting of the catch can? then top fitting goes to motor?

AKlowriderZ71 Feb 14, 2014 01:26 PM

Corey, why no AN fittings on the check valve?? Looks a little out of place.... :P

BlackGMC Feb 14, 2014 01:36 PM


Originally Posted by timmay208 (Post 5192330)
hard to see but does the line off the turbo go to the bottom fitting of the catch can? then top fitting goes to motor?

It goes to the passenger side valve cover. Just like stock.

Originally Posted by AKlowriderZ71 (Post 5192332)
Corey, why no AN fittings on the check valve?? Looks a little out of place.... :P

The check valve only came in barb style fitting :(. Yeah it is depressing.

Mangled03gmc Feb 14, 2014 05:29 PM

All I did was remove the oil fill cap, add a baffled filter in place, no more oil.

Vortec350ss Feb 14, 2014 05:30 PM

I assume you also plugged the stock vent location?

02_Orange_D1SC Feb 15, 2014 10:19 PM


Originally Posted by Mangled03gmc (Post 5192380)
All I did was remove the oil fill cap, add a baffled filter in place, no more oil.

do you get any oil smell

Chevy_King1500 Feb 15, 2014 10:33 PM

I'm running an upgrade PVC valve from a ford tbird turbo.


TB is capped and pass valve cover has a breather


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