No Oil in the catch can.

NoGuru

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Jan 9, 2018
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I added an ebay catch can this past fall just before new turbos went on. I only started driving the car a little recently and noticed I am not getting any oil in the catch can.
The route is from the valve cover or PCV location to the can, and then to the intake tube. Is there a way this could be wrong or something?

I ask because I just took off my intake manifold and seemed like there was oil, around the intake near the valve ports.
 

F87Source

Sergeant
Oct 14, 2019
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What kind of Ebay catch can? Because I've noticed some of these cheapo ebay cans have poor to insufficient baffling meaning little to no oil will be removed from the air stream, basically just a can with two holes for an inlet and outlet and a tiny bit of grating on the inside of each hole. If your can is like this that would explain it.

Also how long did you have the can on for? Because it takes time for oil to accumulate.
 

F87Source

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Heyfred

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Sep 26, 2018
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The catch can system you added, is for Highside PCV which is good you are not seeing any oil. Have you upgraded your Lowside? The 2 work together, if you are going to add a catch can, do both because they compliment each other. I suggest, an external PCV valve upgrade on the Lowside. The oil you are seeing in the intake is from the Lowside PCV system.
 
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Torgus

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Nov 6, 2016
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The catch can system you added, is for Highside PCV which is good you are not seeing any oil. Have you upgraded your Lowside? The 2 work together, if you are going to add a catch can, do both because they compliment each other. I suggest, an external PCV valve upgrade on the Lowside. The oil you are seeing in the intake is from the Lowside PCV system.

This.

Plug the head, do a high side and low side catch cans and report back.

I would get the RB kit: https://www.rbturbo.com/products/accessories/rb-n54-external-pcv-kit with what ever catch cans you prefer.
 
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NoGuru

Captain
Jan 9, 2018
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I think the baffle was on the wrong side. The hose from the PCV to the in had the baffle and the out or hose to me inlet has no baffle. I reversed it so I will test as soon as I put my port injection back in and will give an update.
 

matreyia

Major
Apr 19, 2017
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I added an ebay catch can this past fall just before new turbos went on. I only started driving the car a little recently and noticed I am not getting any oil in the catch can.
The route is from the valve cover or PCV location to the can, and then to the intake tube. Is there a way this could be wrong or something?

I ask because I just took off my intake manifold and seemed like there was oil, around the intake near the valve ports.

That's because:
 
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ansch

Lurker
Sep 23, 2018
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As others have said, the high side catches next to nothing, the low side empty every 1000km/mile. Can't comment on the BMS style eBay catch cans, but I've been using the eBay mishimoto style baffled cans on the low side (RB kit w/ plugged head port) with no problems.