JMBLOWNWS6

iTrader: (17)

I ve done this way and the newest way and they both work well!

JAvenger007

iTrader: (9)

What is a good size for the line running to the turbo...
1/4? 3/8? or bigger? Im considering running the outlet of my catch can to the turbo.

2002ws-6 do you have a breather on that summit can? and which direction does that bottom check valve flow? is it really needed?

JAvenger007

iTrader: (9)

I updated my setup. I basically copied 2002ws-6's pic with minor changes. The check valves are the mcmaster ones already mentioned. I also ran the outlet of the catch can to the inlet of the turbo.

Im still trying to figure out how to run my catch can. I currently have an IN and OUT with a paper fuel filter inbetween. What kind of filter works best for catch cans? Also, do I really need that 2nd check valve?

mondi2002

iTrader: (11)

I think it would work allot better if you put the line going to the intake and hook it to the catch can and the line going to the catch can now disconnect and route it to the ground this is a vent on pass side & cap off the intake.
Or leave as is but put the catch can on the intake line because oil is getting in. And disconnect the line going to the turbo inlet.

2002ws-6

iTrader: (5)

There is a breather on top of my catch can. I have a rear mount turbo and really can't run a line to the intake of the turbo. The lower check valve is needed to keep the stock pcv system working. Without it the pcv will draw air from the catch can instead of the crankcase under vacuum conditions.

JAvenger007

iTrader: (9)

So theres no downside to running that line all the way back to the turbo? (I have a rear mount also). I just followed the other lines running underneath the car and tapped the intake pipe for a 3/8" NPT hose barb fitting.

The car is idling pretty good and doesnt seem to be having issues. Would it be better to just run a breather on the catch can?

2002ws-6 do you have any pics of your catch can?

Is this what your referring to:

2002ws-6

iTrader: (5)

JAvenger007

iTrader: (9)

thanks. Looks simple...just one line running into a breather Catch can. Ill consider that if the vacuum from the turbo isn't giving me what I need.

JAvenger007

iTrader: (9)

Does your summit can have a filter?
(inside for filtering the oil is what I meant)

mondi2002 can you elaborate a little more about your recommendation?

koji777

iTrader: (3)

So is the above diagram the final working setup that will fit everyones needs?

mondi2002

iTrader: (11)

Basically you need to have vacuum plus a vent.
If you pull vacuum on all ports its like sucking on both ends of a straw.

mondi2002

iTrader: (11)

Yes, this is how I have it hooked up minus the line going to the Manifold.
I use that port to control my bypass valve on my procharger.

NemesisC5

Very simple looking setup. Inspector12(Jeff), is this how yours is setup ?

koji777

iTrader: (3)

I'm ready to jump now.... is this the diagram to follow for a fully funtioning system?

utryd2

iTrader: (2)

There is a ton of great info here. Wanted to say thanks as I had similar questions.

CHAMRA1

I've hooked up mine exactly like this ,
Works good , But I now have a whistling sound coming from the front port on the right valve cover that is venting to the atmosphere .

If I plug it the whistle stops , Would it be OK to plug it??

JAvenger007

iTrader: (9)

I think if its plugged then you'll have no way of venting.


So, Is a check valve still needed before the catch can with the above setup?

I think im going to run a 3/8" line from the pass front port to a filter using a barb fitting.

MTBDOC

iTrader: (1)

This all keeps going 'round & 'round...but I must ask: Are you SURE you want to introduce atmosphere INTO the crankcase? I thought that some vacuum was desirable to help ring seal?

In a related matter, is anyone using the Krank Vent system? It basically provides a check valve to keep from pressurizing the crankcase under booost, as well as venting to atmosphere WHEN under boost, but never allowing air to be drawn IN. They claim that the valves react quickly enough to actually allow brief pulses of positive pressure to be vented, and end up drawing a bit of a vacuum.

mondi2002

iTrader: (11)

I would use a long tube & run it to the ground around the K member.
You should not have a whiste. Are you blowing allot of oil out of it?
I would pop the oil cap when its running, rev it a little and see if it is blowing allot. If so you have other problems.

2002ws-6

iTrader: (5)

You need to let some atnosphere in the crankcase. The factory used filtered air off the line that is on the side of the throttle body. This is the line that is always plugged in FI, otherwise it would pressurise the crankcase while boosting.