I plan on doing this as well. Mishimoto makes a kit for the Jeeps with the hurricane engine which is similar to ours. I was thinking about getting that and modifying it for our engine.

 

We don’t have the same accessory drive system as the Hurricane motor. The Mishimoto can for the Jeep 2.0 includes a mount that won’t fit because of this. It might be cheaper to get a generic one, though the Mishimoto one might have connectors that match up with the Alfa.

 

I know that earlier cars often benefited with Oil Vapor Catch cans, but with the known concern with DI valve deposits, and it seems just about every modern car is DI, I would suspect a manufacture would not skimp on a minor adaptation to their power plants if they thought it helped or actually worked. So adding one to a modern DI motor may not accomplish more than what the designer did. Just my opinion, of course. NV

 

I thought ours has 3 of them stock

 

I gave them a call a while back and they didn’t think it would fit, but I wondered if that was just the mounting hardware. Let me know if the kit works if you get around to trying it.

 

Here is the Jeep install video.

 

I'll have one this weekend that Damond Motorsports is going to install. The plan is to have a Giulia 2.0 kit for us by Saturday!

 

I'm not sure a 2.0 really needs this. I've had a couple of heads off of high mileage Giulias and found no real oil build up on the intake valves. These motors have a pretty stout oil vapor separator built in the side of the motor.

 

What would you call "high mileage"?

 

Guess I'll be a guinea pig and find out. If there's no oil in the can after a couple thousand miles I'll save you all the time, money and troubles.

 

We definitely have a decent amount of oil going through the PCV system.

 

Let the testing begin!

 

Let the testing begin!

View attachment 110938

just started a mock up. Really simple.
Amazon makes it easy🥴🤣
I’m attacking both circuits. Vent/turbo drivers side inlet will always get 100% filtered air. I closed off the intake manifold and now both vc will flow out and drivers side will vent and feed as need be. It’s a single circuit using check valves to control flow.
I Will verify flow and pressures results on test drive w vacuum/ pressure gauge attached. Better than factory bc the pcv side doesn’t vent under boost at all. PCV can leak boost. Also all us di turbo guys need motor oil api approved sn plus and resource conservation (RC) approved as it’s designed to fight carbon build up!!!!

 

I would be pretty surprised if you dont trip an engine light

 

I'm not sure if that's directed at Callisto or me but I've already put 150 miles on the car and no cel on this end.

 

My two cents... I put a Eurocompulsion catch can in my Abarth 124. I rarely if ever got anything out of it. I recently installed hood lifts, so I needed to relocate the catch can. After taking it apart, I found that the inlet and outlet hoses were coated with oil, but the catch can was empty. It really wasn't doing anything at all. I removed it completely and put the 124 back to stock. I will not be installing a catch can on the Giulia.

 

If you had long feed tubes of the cc then that’s a good thing because as the hot vapors cool and in doing so, the oil looses its suspension then attaches to the tubes. These are not catch cans. The ides is to separate. If the engine is healthy, then one shouldn’t have any real accumulation of oil or moistures..The oil has been mitigated allowing fresher air to enter intake and not facilitate the build up of carbon.

 

This is a 2021 Jeep 2.0 valve cover...The two orange dots in the picture are the umbrella valves, or check valves if you will.
This is where the fresh air enters the engine and seals when under pressure to keep it from escaping.

This was in for an unrelated repair but I figured I would snap a pic while I had if off.

 

Ok, Thanks for sharing crosshairs. Nice to see!!
I want to say this best and nice as possible and not cross paths.
If those are the check / pcv valves then their sole capability is to VENT cc vapors only. They are only open when there is vacuum supplied by the intake manifold. The second turbo builds boost, these valve are shut down 100% hopefully so they don’t leak boost. They never draw in fresh air ever!! They cannot as they are a 1 way valve.
It’s either suction closed throttle or idles, no boost venting into intake or completely closed under boost. It never ever draws in air!! Period!!
Go ahead and bend over and suck and blow on the inlet. It never allow inlet
Did u suck and blow? I rest my case!!
The inlet is (100%) carried out by the the other side either under boost or idle and light throttle. It’s always open and can either draw in air or vent air out
When humming along under boost, its venting hard and being vacuumed off by the inlet on the intake tube...thus the introduction of oil separator. All harmful gasses are now sucked to the cans before going into the intake tube before the turbo. Stock system has those raw unfiltered cc gasses going directly into the intake before turbo..This is bad. Oily air on hot turbo impeller can coat turbo and the sensor that follow, IAT MAP.
I hope everyone had a great day!!

oh BTW
Heres my modified ccv system in place and running albeit 1 day and missing a critical check valve on order.
so far so good as I went out and hammered it for 30 miles

 

They are 1 way and supply fresh air into the motor. They are part of the oil separator inside the valve cover which is fed by the MUA hose( make up air) or fresh air hose on the top of the valve cover ..it draws filtered air from the intake tube directly into the crankcase. You are looking at the underside of the cover and that is part of the oil separator(s). The PCV valve is on the other side of the valve cover ( dirty air side) and is connected to the intake so it has vacuum. As you know, if you suck air out of an engine (PCV) you must put it back (MUA )
when the vehicle is under boost, the PCV closes,they seal and the air is pushed through the oil separator back into the intake tube through the same MUA hose where it is then introduced back into the engine and re burned.

This is why I made the comment about an engine light, if this is not done perfectly and pressure gets out of range, you get a light....

here is a PDF that may help you understand how this system works. Those valves are part of #4

Again this is a Jeep 2.0 ,the Alfa is similar .

 

You dont understand what u wrote. Pcv does NOT breath in at all. Cannot take air in!! You are confused and talking in circles like a lost hiker walking in circles w no compass. How can they b one way and supply air to motor???
Total contradiction. 100% false.
Further, PCV has nothing to to do with oil separation. That happens in the baffles in the vc. Although it’s mislabeled even by manufacturer, it separates nothing. It runs one way. That’s it!!!! Why can’t this b understood?What u showed was a pcv valve and spoke that it allowed fresh air in??? 200% wrong. Sorry, fact, not gonna change. Go blow on it and tell what happens!!! Nothing happens if working!!! It’s blocks and shuts off!!! That’s it’s job!!

The other side let’s air in and out. Not one way. This side is NOT PCV. PCV can only allow vapors to b sucked out I’ve known this for 40 years now. I’ve built custom ccv systems for aftermarket turbo cars for decades. I just put together a pcv system for Giulia. Please stop. You send a pdf on how it works? Really!! Read it please.
ive had enough now. Ridiculous. No wonder cars come out more fed up than when they went in!! These forums are a bad joke w misinformation fed buy....., ???? Good Bye, no more...Good luck readers. Some folks like a pcv...they only go one way...transmit yet cannot receive!!!

 

You dont understand what u wrote. Pcv does NOT breath in at all. Cannot take air in!! You are confused and talking in circles like a lost hiker w no compass.
PCV has nothing to to do with oil separation. That happens in the baffles in the vc. Although it’s mislabeled even by manufacturer, it separates nothing. It runs one way. Why can’t this b understood?What u showed was a pcv valve and spoke that it allowed fresh air in??? 200% wrong. Sorry, fact, not gonna change. Go blow on it and tell what happens!!! Nothing happens if working!!! It’s blocked off!!! That’s it’s job!! The other side let’s air in. This side is NOT PCV. PCV can only allow vapors to b sucked out I’ve known this for 40 years now. I’ve built custom ccv systems for aftermarket turbo cars for decades. Please stop.
ive had enough now. Rid
iculous. No wonder cars come out more fed up than when they went in!!

What I showed and what I said is that those valves allow fresh air into the engine and that is exactly what they do. I dont know any other way to explain this to you so please do yourself a favor and read the attached information, I did not say that was the PCV valve, you did.

If those are the check / pcv valves then their sole capability is to VENT cc vapors only. They are only open when there is vacuum supplied by the intake manifold.

in fact I clearly stated that the PCV was on the other side of the valve cover

The PCV valve is on the other side of the valve cover ( dirty air side) and is connected to the intake so it has vacuum.

PCV has nothing to to do with oil separation. That happens in the baffles in the vc.

The PCV works in conjunction with the oil separator as the system is all interconnected

The other side let’s air in. This side is NOT PCV. PCV can only allow vapors to b sucked out I’ve known this for 40 years now. I’ve built custom ccv systems for aftermarket turbo cars for decades. Please stop.

They are connected, that is what you seem to be missing....40 years ago no one cared if you released crank vapors into the atmosphere..that is no longer the case.

Although it’s mislabeled even by manufacturer, it separates nothing. It runs one way

I have a direct number for engineering Ill share if you want to straighten them out. But if you speak to them the way you speak to me, I would expect they will hang up on you.

 

diagnostic info...explains the airflow pretty clearly

 

The train has come off the tracks and tumbled to a fiery death.

 

Well, minus all the bullshit, I'm into making this system. LOL

 

 

this

 

So I've had the catch can installed for just over 4k miles and before leaving for a 1k mile trip I decided to check the can to be safe.

So as you can see we do get some blow by feeding into the intake manifold. The stock pcv seems to do a good job at catching most of it but the can will stay for peace of mind and cleaner valves.

I will reach out to Matt @DM so we can start testing the intake side and see when I can get up to Chicago for that install.

 

So I've had the catch can installed for just over 4k miles and before leaving for a 1k mile trip I decided to check the can to be safe.









So as you can see we do get some blow by feeding into the intake manifold. The stock pcv seems to do a good job at catching most of it but the can will stay for peace of mind and cleaner valves.

I will reach out to Matt @DM so we can start testing the intake side and see when I can get up to Chicago for that install.

Thats a pretty significant amount of oil so it looks like this is a worthwhile mod for sure ...

 

Its interesting that not many more people have at least experimented with adding on here. Guess people are too busy adding intakes and 380HP tunes...

Following for my own sake. My Giulia isnt my daily driver my 97 Volvo is but I like to keep my stuff in as good of condition as possible. I know when I still had my T6 Volvo they werent very common since the PCV system on those cars is beefy and designed to be replaced once clogged.

 

I decided to check the CC after 7k miles this time. Overall the kit is doing it's job.

7k vs 4k

 

I decided to check the CC after 7k miles this time. Overall the kit is doing it's job.

Thats pretty amazing that you got this much blow-by from the just "PCV dirty side". This is interesting because on the Mishimoto dev blog for the jeep catch can with the same-ish engine, they the claim that they got nothing from their dirty side can but a lot of oil from their clean side can.

I'm thinking of doing something similar but trying to determine the best configuration. This thread has been exceedingly informative.

Does anyone know what the heck is going on with the setup that Callisto posted above ? I'm very curious about this and he seems very knowledgable but I have some trouble following his descriptions (Unfortunately he is also banned ). The last picture he posted doesn't look like anything I have seen before. Neither does it look like the schematic he posted in the beginning.

Based on what I can parse from this,

• The red hose connects the PCV (dirty) side to catch can on top. But, there's also a connection from it going to the right. Where does that end up? does it snake around the bottom around to the intake manifold? (if so, doesn't this just bypass the can?)
• The blue hose is where the clean side CCV is. but it doesn't route this to the catch, its a direct connection to the post-airfilter. Doesn't this bypass the can during boost? since the dirty air can travel directly along the path of the blue tube into the airstream (top to bottom in his picture).
• There's also the red hose branching off from the blue to the left, off to the second can do. What does this even accomplish?
• Somehow, the 2 cans are also daisy chained together.

I'm very confused, could someone who is more knowledgable enlighten me on what is going on here?