RSMike

iTrader: (1)

Results - i've changed a few things, but this definitely worked.
I used to fill up my catch can in around 3 laps. Now I can do 3 laps and there is Zero (completely zero) in the catch can.
I need to work out exactly what caused the biggest impact.

Things I changed:
1) New EFR7670 setup. EMAP went from ~400kpa to around ~300kpa (15psi reduction) over a stock frame turbo - Intense 5353.
2) New Athena/Vulcan ring headgasket. My old Tomei headgasket failed @ 500ftlb torque at low-ish rpm (3500rpm), leakage around #4 cylinder into the coolant system.
3) Blocked the lifter bleed holes at the end of the gallery. No negative effect, no ticking etc.
4) New baffle system for my Hypertune rocker cover

I dont know if points 1) and 2) will have an impact on blowby at all. Maybe?

Pics of the new baffles I made are below. They have 3x breathing ports per plate with side shrouds that extend down and over the camshafts like OE.
This was the stop the oil flicked off the camshaft lobes to get above the baffles.
Also there is "hurdles" on top of the baffle plate, so the oil needs to climb over multiple hurdles to get to the catch can.
Some of the hurdles have holes at the base of them to promote any liquid oil above the baffle plate to drop back down into the head.


New baffle plates showing the half moons to shroud the camshaft lobes, and the hurdles to stop liquid oil coming out the breather lines.

ViciousLSD

iTrader: (2)

I think it all helps a little bit in their own way. I think the main goal of the OE baffles it to reduce the oil crawling on the ceiling of the VC, also give the air current a few sharp turns. looking at the stains on my baffle plate it looked like oil pools in some areas

Construct

iTrader: (4)

That's a clever solution.

Though I have to ask: Did you have anything equally clean in mind for removing the bearing if it doesn't work out?

LetsGetThisDone

iTrader: (1)

Changing the turbo would have no effect. Reducing Emap doesn't change cylinder pressure. You just allowed more fresh air in.

RSMike

iTrader: (1)

No sir I do not! haha
I was fairly certain it would work, so I just went for it.

kyoo

iTrader: (29)

do we want more oil limiting than what the kiggly hla is already providing?

Ayoustin

iTrader: (2)

My gut says no, at some point the lifters won't be able to stay pumped up if even less oil makes it into the head.

RSMike

iTrader: (1)

blocking the end of the lifter gallery's does not change the oil pressure to the lifters or the camshafts.
The oil pressure at the lifters is regulated by the Kiggly HLA.
Blocking those 2x holes is just reducing how much oil is being "wasted" in the head.