All Crankcase Venting Options, Balance Shaft Vent Hole?

[Anfurnyy]

Would also like to know this. What is the size/thread pitch of the bolt and what size line is used. Going to a can? Sealed or vented?

M10 x 1.25 20mm

 

[Car Cannibal]

I suspect the port screw block size, only from looking at the STM fitting, it's ....

M10 x 1.25

STM pic is for Evo 4-9, they only say 6an but looking at online fittings I'd say m10 x 1.25 x 6an is this fitting.


EDIT = I posted at the same time as Anfurnyy, his post confirms this.

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[CrackedDSM]

I think I’ll probably end up going with the antilag racing fitting instead. It’s -10AN and goes in place of the freeze plug when you do a balance shaft elimination.

 

[Car Cannibal]

Shop informed me that trying to install the fitting for the BS inspection would be easier from the top, intake off so that option is out.

Option 1, add 2nd 8an on valve cover near oil cap towards firewall or CAS.

Option 2, Star Machine, EVP1, 12v vacuum pump, draws 8" and will most likely make 1-2% more power from crankcase relief. Haltech will turn it on around 8psi and I'll install a check valve into the original catch can out line since it runs to the inlet pipe and I don't want it sucking out compressor air. Vibrant piston check valve might not work so I'm looking into lower vacuum cracking pressure options.