Quote:
Originally Posted by Mr.98GSX
Well I just re-read this thread twice and I don't think I've learned so much at one time before! I vote this most informative thread on style for quite a while. I would like to clear a few things up for other newbs including myself in this situation.
The first pic is of somebody with just a filter on their vc. This is bad because it allows air to get sucked back into the vc.
The second pic is a setup with a simple catchcan/filter that goes on the line from the vc to the intake.
My understanding of the Krank Vents is that one goes on by your pcv valve and acts as a backup making sure no air gets into the vc, and the other goes on a line from the vc to the intake sucking some air out but again not letting air back in. You would also want to use a catchcan/filter on the line going from your vc to your intake.
I'd appreciate it if somebody could edit my post and correct anything that's incorrect. It may be a little late for this post, but I'd like to think I'm helping out some future newbs we might direct to this thread.
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You are correct about the KV by the PCV more or less acting as a "backup" for the stock PCV valve. It does the same thing, only better. On the valve cover breather port the KV doesn't suck any air/gas/fumes out of the crankcase, it just prevents air from entering thus helping to create a vacuum (when one KV is open and letting air out, the other is closed and not letting air in). This system works best with a vacuum source hooked up to both; intake manifold to PCV side and intake pipe to breather side.
Right now I have a little K&N filter on my KV coming off the breather (as pictured above), but in time when my setup is complete it will be going to a catch-can then routed back to my intake. This will be done as soon as I get my mini-battery kit allowing me room to mount my catch-can.