2G Catch can setup

[DiamonDSM98]

I’m having crank case issues and I’m trying to solve it!

I have -10an fittings coming off my valve cover
-10an fittings coming off the oil cap as well and only 3 fittings welded to my can.

My question is should I add a Y adapter for my valve cover lines or add a Y adapter for my oil cap?
The spot where I have the filter on the catch can is actually a threaded fitting as well (-16an) that goes out to my exhaust. Which I plan on switching up

Please let me know what’s the best way to route this, I can modify it however.
Also is this over kill? Should I just add the two valve cover lines and maybe a line coming from the balance shaft inspection hole?

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[jdxnc]

2x -10 off the valve cover should be more than enough, if it's still building pressure I'd look at the cause rather than trying to put a band aid on it.

 

[DiamonDSM98]

2x -10 off the valve cover should be more than enough, if it's still building pressure I'd look at the cause rather than trying to put a band aid on it.

Okay thanks! The fittings on my catch can are actually -8an. Would it be ideal to just cut those out and weld in -10an instead of trying to put adapters on them ?

 

[Boomdeeze]

I feel like you have other issues going on if you’re still building pressure with a -10an and two -8an. That is far more than stock and should t be an issue even with higher boost. I run one -12AN line as my breather and stock pvc setup at 38psi without blowing out the dipstick.

 

[diambo4life]

8AN is sufficient. Mine is having lots of crankcase issues when I turned it up to 30psi (with two -10ANs) but I plan to rebuild it this winter so it's getting sent in the meanwhile. My old Galant VR4 had two -8AN from the valve cover and it saw 50psi a few times with no crankcase issues whatsoever. So, plan on reringing it or doing something in the near future. How big is the outlet to that can?