hayden

Hey, I've been searching everywhere on the internet trying to figure out the best way to do my PCV system. I know a lot will argue that when you have forced induction, you shouldnt use a PCV valve and you should just run breathers on the valve covers which I understand. But, I found a way that I would like to do mine, would just like a little input from you guys as to whether you think its a safe way to do it!

This is what I found..

http://www.junkyardturbos.com/junkya...argerGuide.pdf

On page 49 it explains how it works, and on page 50 it has diagrams showing the factory PVC routing and the new routing for the turbo.

My main question is, where it talks about re-routing the hose on the oil filler neck to a port between the air filter and turbo inlet. Do I actually have to do that, or can I just vent it to atmosphere? But again, I've heard that with a pcv valve and breathers on the valve covers it creates a vacuum leak. I wouldnt be putting breathers on my valve covers, but would the hose on the oil fill neck vented to atmosphere create a problem as far as a vacuum leak? Any input is appreciated, Thanks!!

Tony71502

From what I've read, without having the PCV attached to the intake, like if you jus ran a breather, unmetered air would get into the system and cause an improper a/f ratio.

luckythirteen13

that would work if the place where the vac line coming off the valve cover is after the maf. this would require you to run a draw through maf. besides that, the other down side is that your turbo will be sucking up the oil that comes through the vac line. and if you run a draw through maf, you will have to run a bypass valve, you wont be able to run a blow off.

you have 3 options, other then what that link says to do, and they are;
1. run 2 breathers
2. run a vacuum pump
3. run a header evac kit.......this is what i have.

header evac kits uses exhaust gasses to create a vacuum that will pull air out of the crankcase

hayden

Thanks for the reply guys. I'm running a blow-through mass air. I just dont know what to do with the line coming from the oil fill neck. By the way the diagram shows it, it needs to go on a port between the filter and turbo inlet, but my filter is directly on the turbo so thats why I was curious as to whether or not I could just leave it vented to atmosphere without creating a vacuum leak. Do you guys think it will in fact create a leak? Thanks again!