that some persistent oil, still getting thru the foam lol

 

My car only has oil breathing problems when pushing hard on the track (clockwise circuits).
Any street, drag or dyno use = zero oil in cans.

There is a 12AN line coming directly off the block too, with no filters or foam.

 

this is probably due to crank smashing trough lots of oil in right hand turns..

 

almost spit out my cereal !!!

 

I picked up one of these adapters last year. Bolts onto the front case where the rear balance shaft would live. Suppose I'll find out if too much oil gets pushed up the line.

 

can you actually get a hose to route to that fitting with the alternator/accessory belt routing?

 

I think it was CBRD that had a tube welded with a 90 that came straight up and out of the timing cover to the top to connect a hose to. But yeah, the water pump pulley looks to be right there.

 

 

Yes and No.
I think it was more to do with the valve cover breathers both being on the gearbox side of the engine. If these were in the middle of the cover, I think there would be less that comes out.
Yes - right hand turns will cover the crankshaft (#4 rods etc) and that will certainly flick lots of oil up the back of the block wall.
But with the new catch can setup (and block breather), the amount of oil in the catch can has reduced by 90%.

Beware about breathing off the rear of the block (balance shaft port included). With crankshaft rotation, there is a lot of oil on the back of the block wall and it will easily get pushed out of the lines. I'm happy with how the front block breather worked.

 

Any thoughts on if this will work with that front block vent?

Idea would be that if fluid accumulated it will pool at the bottom vent but upper vent will still pull mass flow. Once you lift or oil accumulation exceeds crankcase head then the accumulation will flow back. This would be specific to running with a front block side vent like Mike did.

 

I did think about adding an intermediate catch can in that block line.
With your idea - what if you put the drain back into the pan below the oil line?
This would allow the can to drain back at all times as the oil level in the pan would block the crankcase pressure. (assuming that's correct).

 

with stock pcv? that is very low-flow so IMO this can will just hold pressure
this is similar to the vent/pipe from my dipstick(maybe you should drain there). I add a fluid check valve on the drain-back line so flow is one direction and the oil get queued in the drain-hose not in the can

 

No, nothing to do with the PCV. It would just pull vacuum from the intake (which there are ways to get really high vacuum using a venturi) so under boost it would pull from a front fitting like Mike just installed then when off boost if the fluid head (a term for fluid pressure relating to height) exceed the vacuum created it will instead flow back with out any need or restriction of a 1way valve.

I also had a little brainstorming session with a few other senior engineers well versed in fluid dynamics and aero dynamics about the most effective way to create that venturi so I might be doing some playing with that soon.

 

my earlier 2-stage oil separator setup. you'll probably have lots more vertical/fatter hose so will definitely work better. mine, i think, didnt lower the pressure/velocity of the mix.





LATEST setup (fully vented, no oil in intercooler)

 

I wonder if @ayoustin could design a exhaust cam driven vac pump mount that utilises his rotated cam sensor housing. Kind of like what some companies do with mechanical fuel pumps.