[Dusten]

I would believe because it's getting sucked dry by the engine/vacuum.

How i had mine setup up before (couple days ago) i had the driver's side VC nipple to a catch can then vent to ATMO. That's why it was getting all that shit smoking under the hood. It would accumulate everything that is supposed to be burnt off by the engine.

Is your driver side valve cover plumbed to your intake elbow or plenum? Does it matter? That was one of my questions. I wouldn't think so?? (post or after throttle body)

It's plumbed to the elbow.

When I say dry I mean there is no sign of oil vapor

It's why very few people run a catch can on the driver's side.
I've got a few thousand miles and 3 years on the 2.9 making 24lbs and 700+. So it's not exactly a new setup.
It's plumbed like this.

 

[cbxer55]

Is that one of SVT Tim's hoses? I have them on mine as well. Never been a sign of oil in them or my C & L elbow. This is my separator. I used the brass fittings because I was unable to use regular hose without it kinking bad. Good old Mad Enterprises COP screws. Can has a petcock on the bottom. Typically has enough oil in it after 100 miles to half fill a rattle can paint lid.

 

[Dusten]

Is that one of SVT Tim's hoses? I have them on mine as well. Never been a sign of oil in them or my C & L elbow. This is my separator. I used the brass fittings because I was unable to use regular hose without it kinking bad. Good old Mad Enterprises COP screws. Can has a petcock on the bottom. Typically has enough oil in it after 100 miles to half fill a rattle can paint lid.


View attachment 550046

Ya. He didn't make them for the 2.9 so I sort of commissioned him to make a set.

 

[NMSVT]

I was told is does matter and needs to be before the throttle body, that way when the throttle blade is closed/partially closed at idle, the air can enter the drivers side valve cover and circulate/work as it should.

It's considered previously metered air, so it should re-enter between the tb & maf

Does it really matter tho? The TB is still letting air pass by. It’s not like it’s completely shut

 

[kirk]

Does it really matter tho? The TB is still letting air pass by. It’s not like it’s completely shut

That's probably debatable

 

[DebtLife Projects]

Does it really matter tho? The TB is still letting air pass by. It’s not like it’s completely shut

idk, just what I was told by people who know alot more than I do lol. I was told if I decide to run it, make sure it's connected before the throttle body so it functions properly.

 

[cbxer55]

Does it really matter tho? The TB is still letting air pass by. It’s not like it’s completely shut

It should be. The IAC controls the idle airflow. I believe my Accufab tb completely closes. It sticks just a very tiny amount when I depress the loud pedal. Idles where it should though, 700 in neutral or drive, around 550 in gear.

 

[Cobrakit]

So when all the dust settles, what's the best configuration? Currently I have both sides running to a vented can. Should I put a breather on drivers side? Biggest problem I have is smell and it getting into fresh air vent of truck.

 

[Dusten]

So when all the dust settles, what's the best configuration? Currently I have both sides running to a vented can. Should I put a breather on drivers side? Biggest problem I have is smell and it getting into fresh air vent of truck.

My driver's side it attached to the intake. Passenger runs to a catch can and then to the plenum

 

[cbxer55]

My driver's side it attached to the intake. Passenger runs to a catch can and then to the plenum

Same with mine. I just don't see the necessity of a catch can on the driver's side. Even after what CD said. Mine has always been dry.

 

[NMSVT]

You’re over thinking this…, keep it simple.
Put a breather in the drivers side valve cover.
Put a PCV valve in the passenger side valve cover > catch can > Plenum.
Larger the hose will slow the velocity and the oil will return to droplets.
You will need a tune for the unmetered air.
A stock system works good on a stock engine, you’re far from stock.

Marty

I will be routing the passenger side like you have mentioned and the driver side back into the plenum as well. Will need to weld another port on intake tube to run it before throttle body.

I know I'm highly modified but like I mentioned the smell and vapor is coming from driver side valve cover. It sucks and I'd like the engine to burn it instead.

 

[NMSVT]

It's plumbed to the elbow.

When I say dry I mean there is no sign of oil vapor

It's why very few people run a catch can on the driver's side.
I've got a few thousand miles and 3 years on the 2.9 making 24lbs and 700+. So it's not exactly a new setup.
It's plumbed like this.


View attachment 550045

Real nice and clean setup. I'm jealous. I could never have my engine bay look that clean. I live in the desert and have a dirt drive ways EVERYWHERE.

 

[NMSVT]

That's probably debatable

I'll leave it plumbed to the plenum for now. Then I'll weld a nipple to connect to on my intake tube for it.

 

[NMSVT]

It should be. The IAC controls the idle airflow. I believe my Accufab tb completely closes. It sticks just a very tiny amount when I depress the loud pedal. Idles where it should though, 700 in neutral or drive, around 550 in gear.

550 in gear? Damn that's super low to me. Mines right about 800-825. Of course I'm cammed tho and lower RPMS can possibly shut the engine down.

 

[Certified Drunk]

It's probably set to 800 in the tune like mine.

 

[cbxer55]

I will be routing the passenger side like you have mentioned and the driver side back into the plenum as well. Will need to weld another port on intake tube to run it before throttle body.

I know I'm highly modified but like I mentioned the smell and vapor is coming from driver side valve cover. It sucks and I'd like the engine to burn it instead.

Why would you route the driver's side to the plenum? The plenum is under vacuum because it is behind the throttle body. You can't have both sides routed to vacuum. It'll cause the block to be under vacuum full time. Driver's side needs to be routed to a source forward of the throttle body, yet behind the MAF.

 

[Slowpok04]

Silly question….would it solve things to run both
valve cover ports to a single catch can and then have a single outlet from the catch can to the original port on the plenum?

 

[Slowpok04]

I run the typical JLT 3.0 on the passenger side. After about 500-600 miles I might see a few drops in the can.

 

[cbxer55]

I run the typical JLT 3.0 on the passenger side. After about 500-600 miles I might see a few drops in the can.

Mine, it just depends on how I am driving it. If I am just putt-putting around town, hardly anything. If I am driving it like I stole it, it can half fill a rattle can lid in 1000 miles. Under boost, there is a lot of vacuum in the plenum. And that will suck oil out of the PCV valve, more than indicate excessive blow-by.