The reason why the PCV valve fails is the high temperatures and the oil being stuck in it and being cooked. So what if the PCV valve is far away from the heat and oil, but still in the system

Found the picture here on the forum, so I redid it.



And all that in my engine bay

Just a fitting there instead of the PCV valve



Going to the catch can





The PCV valve after the catch can, far from heat and oil, just sucking on filtered vapors



The check valve after the PCV valve



The whole thing

Thats a nice setup. Spent some money on those fittings but looks good.

Running the check valve and PCV valve is redundant. A good, quality check valve inline would have sufficed.

But nice. Similar to what I'd like to do.

Looks good, but like what knochgoon said having the pcv and check valve is redundant. I was trying to figure out a new pcv set up as well today. What size fitting is in the VC? Did you have to drill and tap to fit?

The only issue with that setup is that the PCV valve has a snorkel on it which cuts down on the liquid splash that enters the system from the VC. With just a fitting there, you run the risk of a bit more liquid being drawn into the lines. Liquid oil leaving the VC = bad.

I agree that if you only run one or the other, a check valve like the 3/8" Kynar valve from US Plastics would be better than the stock PCV valve (even a new one).

BTW - Unless that catch can has a good filter in it which can remove sub-micron particles (which very, very few do), you're still going to have oil accumulating in the valve and your IM.

It is true, it sucks a bit more fluids, but from what i can see it's mostly moisture and some oil. I've had the setup since january and it fills 1/2 of the can in month most of which is water/moisture.

Yes it was drilled and tapped with 1/8 npt

why have two catch cans, and two inlets into the intake tract? It is missing an oil air separator as mentioned above. Should crankcase ventilation also be metered?

The second catch can is for the breather form the valve cover to the intake pipe

Are you asking why I have two inlets on the side of the intake manifold?

The 4an fitting and the teflon line are for the BOV and the stock BOV nipple is used for the EGR as I have modified it to suck fresh air from the turbo pipes and still be functional.

Yes the crankcase air is already metered, but since i have it set as a blow-through, there isnt much to be done.

okm12346 said:

It is true, it sucks a bit more fluids, but from what i can see it's mostly moisture and some oil. I've had the setup since january and it fills 1/2 of the can in month most of which is water/moisture.

Yes it was drilled and tapped with 1/8 npt

Click to expand...

I would personally just run the PCV in the original location (I actually experimented with incorporating one into my catch can design at one point)...but if you want to cut down on some of the oil entering the lines, you may be able to modify the fitting that connects to the VC.

Something like the way I modify my PCV valves may work: http://www.dsmtuners.com/forums/articles-miscellaneous/345125-how-make-90-degree-pcv-valve.html