PCV Valve / Rocker Cover Breather

[Gee]

And that you have a PCV valve in place where by I don't? So what difference will that be making?

 

[Gee]

No. This is what 99% of people do and is wrong.

Do this:
PCV -> catch can inlet
catch can outlet -> inlet manifold

The catch can should be the sealed type (no air filter on it).

Only issue I have with this setup is oil going all over my rocker cover, making a mess, increasing temperatures and the filter getting clogged anyway. Anywhere else if could be plumbed?

 

[Rory]

Gee, my PVC is gutted to let it breathe as normal.

 

[Gee]

Gee, my PVC is gutted to let it breathe as normal.

Oh OK.

Well, some are saying our setup's are wrong!

 

[Rory]

Everybody has diffirent opinions, but the the setup isnt wrong.
Thers just diffirent ways to do it.

I know mines works a treat, its been on there for months, and the can does fill with gunk.

 

[GTnomez]

so what it the 'ideal' way to do it?

 

[Gee]

so what it the 'ideal' way to do it?

You read any of the 3 pages?

 

[Dub-Se7en]

when i do mine i'm gonna run my breater to the catch can, then another pipe from the can back to the intake side of the turbo, and leave the pcv as is.

 

[GTnomez]

You read any of the 3 pages?

yeah i did actually and im still baffeld, rory and weejohn sound like they know what they are doing but still.......

 

[WallaceGlanza]

That is basiclly saying that, if you run the breather onto the intake, without the PCV than it will contaminate it.

You will be fine, as you have the PCV in place.
Mine will be fine as it doent breathe into the intake.

So what about the stock setup where the breather feeds into the intake before the turbo, does it make a difference that its before the intercooler so the oil gets caught there?

 

[Gee]

yeah i did actually and im still baffeld, rory and weejohn sound like they know what they are doing but still.......

Only messing mate.

Yeah, WeeJohn seems to have the correct setup going by some people comments.

Only thing I am not happy with is having a crap filter on the breather from the rocker cover.

 

[munday]

yeah i did actually and im still baffeld, rory and weejohn sound like they know what they are doing but still.......

Oh cheers :slap:

If i was doing it to mine i would just run PCV - catch can - atmosphere

Will still collect the oil plus you have absolutely no chance of contaminants getting back into be inlet.

But all of these setups are totally fine.

 

[Gee]

Stop moaning Munday.

I left feedback to everyone including you!

 

[munday]

Stop moaning Munday.

I left feedback to everyone including you!

I jest

Lets all go to the e-bar :beer:

 

[Rory]

So what about the stock setup where the breather feeds into the intake before the turbo, does it make a difference that its before the intercooler so the oil gets caught there?

It would still be the same, if i understand you right.
There will still be the oil vapour/contaminents before the inlet, and would cause gunge to get caught in the TMIC (standard setup)

 

[WallaceGlanza]

It would still be the same, if i understand you right.
There will still be the oil vapour/contaminents before the inlet, and would cause gunge to get caught in the TMIC (standard setup)

Well I'm just meaning is that bad the way the stock setup is or is it ok because the intercooler will trap any oil?

Also does more oil come out of one breather compared to the other due to the baffle plate in the rocker cover that weeJohn mentioned?

I'd think this would be the case as I only have a small rubber pipe on the middle breather at the moment and there is oil traces at the end of the pipe and previously when I had a filter there it was very oily. Whereas the pcv pipe seemed pretty clean when I had it off and the inlet manifold was spotless inside too.

@ Gee, I didn't get any feedback.

 

[munday]

Just a quick note...having oil residue inside your intercooler will be doing nothing for its heat exchange capabilities

 

[Red Hot]

Gee, your setup is like it should. There are to ways to make a catch tank setup. One which vents to the athmospere and one closed system (for those living in country's where a vented system is illegal). Reason to use a catch tank system is that you don't get octane dilution and cool the hot crankcase fumes or completely dismiss them from the intake mani.

With a closed system you put the catch can between the pipe that goes from your rocket cover to your inlet mani. The negative pressure from the inlet mani will suck the fumes from your engine.

When you've got a vented system you connect it like you have it now (all pipes from the rocket cover to the catch can). You want to vent as much as possible to make sure there is no pressure buildup. Standard holes are prob. to small as these are meant to be used with forced suction from the mani. So that's the reason you want to use a bit larger diameter hose/connections or more than 2:

 

[Gee]

@ Gee, I didn't get any feedback.

 

[dan_ep82]

another way to do this, what gee is best doing is removing your filter from the catch can, and running a pipefrom it into the intake pipe just after your airfilter

this works in the same way as weejohns, as the turbo is sucking in air it will also create vacume in the catch can sucking the vapour out of the rocker cover.

see my scetch below.

dan