anyone selling a 4 port closed loop Calan Catch Can?

I hope you find the 4 port Calan Catch Can that you are looking for. I was in the same boat as you earlier looking for a Calan and I couldn't find one, but I think this alternate 4-port catch can solution from Radium Engineering might meet your needs if you don't have any luck finding one either:

It could easily configured to keep your PCV system if that is what you need.

I ended up going with this Radium 2-port system myself because the baffling and filtrating system looks very promising and the quality is absolutely top notch (I know it's a bit pricey though):


Good luck finding the Calan... if not, I hope this helps!

4 ports on 1 can is do able but it has to be a big can to hold the amount of capacity

I did make a 3 port in small batches a few times, I use 2 cans myself for a few reasons, 2 ports from the VC in and 1 out into the 2nd can and then 2 out. I can list reasons if you really wish.

the radium one will do you well but will be smaller then most others so depends how much you expect to collect vs size needed.

note that one of my cans were up for sale not long ago in the classifieds! maybe its still available to buy as that would be a good start maybe and should be big enough to start you off

ec17pse said:

4 ports on 1 can is do able but it has to be a big can to hold the amount of capacity

I did make a 3 port in small batches a few times, I use 2 cans myself for a few reasons, 2 ports from the VC in and 1 out into the 2nd can and then 2 out. I can list reasons if you really wish.

the radium one will do you well but will be smaller then most others so depends how much you expect to collect vs size needed.

note that one of my cans were up for sale not long ago in the classifieds! maybe its still available to buy as that would be a good start maybe and should be big enough to start you off

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How big is the can that you made/sold Bobby? For reference to the OP, the Radium dual can is 16 ounces total volume (two separate 8 ounce cans). I ran a quick calc before awhile back on the volume of the Calan and do recall it was quite a bit bigger than the Radium dual. FWIW, bigger volume is why I went with the Radium Competition Tall single can (1 quart = 32 ounces), but this can might not meet OP's needs, since he was asking about 4-port.

I'm pretty sure that guy you are talking about Bobby sold his can (the can you made), I remember talking to him back in August 2021; unless you are talking about someone else...

talon77 said:

How big is the can that you made/sold Bobby? For reference to the OP, the Radium dual can is 16 ounces total volume (two separate 8 ounce cans). I ran a quick calc before awhile back on the volume of the Calan and do recall it was quite a bit bigger than the Radium dual. FWIW, bigger volume is why I went with the Radium Competition Tall single can (1 quart = 32 ounces), but this can might not meet OP's needs, since he was asking about 4-port.

I'm pretty sure that guy you are talking about Bobby sold his can (the can you made), I remember talking to him back in August 2021; unless you are talking about someone else...

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At a push mine can catch 600ml before it starts to creep out the outlet. But it is also just under the in port also.

I made it somewhat compact but holds enough for my needs when using 2 cans.

I dont remember who it was but it was powder coated black vs my normal sold state. Which ever one the OP gets he needs to make sure its a proper baffles design! Im not a fan of the open ones as they do nothing really and only good for collection and thats why i run 2 cans and mine is the last can inline and dual filtered and its dual baffled to control the oil passageways better

Gotcha. I agree, the can definitely needs to have a good baffle/filter design to be worthwhile. FWIW, the Radium is nicely baffled and filtered (imo at least), but not sure one can call it "dual" filtered/baffled like yours... Radium forces the air through the stainless filter media, then through an air/oil separator plate, then forces the air to "turn" via the baffle, then forces it through the same air/oil separator plate a second time before it leaves the can.


I don't work for Radium and they don't sponsor me in any way, but I'm just trying provide OP with an option, that's all

talon77 said:

Gotcha. I agree, the can definitely needs to have a good baffle/filter design to be worthwhile. FWIW, the Radium is nicely baffled and filtered (imo at least), but not sure one can call it "dual" filtered/baffled like yours... Radium forces the air through the stainless filter media, then through an air/oil separator plate, then forces the air to "turn" via the baffle, then forces it through the same air/oil separator plate a second time before it leaves the can.

Blog Post Catch Cans 101

I don't work for Radium and they don't sponsor me in any way, but I'm just trying provide OP with an option, that's all

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I did mine a little differently. I use 2 materials for 2 reasons in the filtering process. It works differently for temps also. Radiums work well and many others do too. You dont always need very complex system (i do) my internal baffles are a way to block any oil or air flowing particles and then it collects into a bottom chamber where it sits and acts like a trap for the sludge / oil so helps stop it from coming back out thats about 300ml capable, anything more then its just inside the middle baffled/filtered section,

The outlet is enclosed also with the holes in the highest part so it gives a wide range of safe fill to not get sucked out if it goes get full up before someone dont drain it

Mishimoto is another thats basic but can work well, just one name off the top of my head but those same mishimoto cans are also sold on ebay for 1/4 the price from the same factory radiums i dont think can be found anywhere else similer like cans on ebay but with radium you pay for the brand and design with all of their parts. I use their Multiport FPR and its very nice.

Thanks for the info.

Huuum i wonder if the duel radium cans will be enough? I could get two tall signals but that would be pushing $500

I will eventually boost as much as I can out of this street car build. However, I have not bought the turbo yet.

All I know is that I previously shot oil out of my dipstick tube all over the motor, so I disassembled and re-honed and everything is good now (cylinder compression--long story). I am just taking precautions to prevent this fresh motor from damage. I really believe I I'll sleep better having a closed loop system.??

I do have the JMF 2 port vented catch can, but am hesitant to use it with a PCV valve going to the cover. I would imagine this would be huge vacuum leak at idle and cruise? I would like to maintain my PCV valve do to the fresh motor rebuild and integrity of the oil?

However, I am open to suggestions.

thank you

Anyone tried one of the vibrant closed 4 port cans?
Part #: 12697

Have one sitting in a pile of stuff on my to do list this weekend but still waiting for my VC to come back with fresh powder coat and some custom baffling.
Still looking for a non plastic pcv valve to put in line with the intake manifold to can.

USMCGSX said:

Anyone tried one of the vibrant closed 4 port cans?
Part #: 12697

Have one sitting in a pile of stuff on my to do list this weekend but still waiting for my VC to come back with fresh powder coat and some custom baffling.
Still looking for a non plastic pcv valve to put in line with the intake manifold toI

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I have not tried it, but have you ever opened that can before to verify that it has filters or baffles in it? I think I researched that can before I bought Radium and I didn't find anything on it, so I assumed it was just an empty can... which is not really good. Do you know if it has filters/baffles?

I thought I saw it in a diagram but I just opened it up to find out. Pics for the curious. Put it next to a 2L soda bottle for size reference.

USMCGSX said:

I thought I saw it in a diagram but I just opened it up to find out. Pics for the curious. Put it next to a 2L soda bottle for size reference.

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I bet that would work just fine because it is filtered and baffled. That is a pretty generously sized can, I would think the capacity stops where the little holes in the baffles stop though (ie: if all the little baffle holes are submerged, I don't see air flowing through them if the two can halves are sealed from one another). Still, that's a good sized can it looks like.

The OP can't use this 4-port can though if he maintains the PCV as planned.

talon77 said:

I bet that would work just fine because it is filtered and baffled. That is a pretty generously sized can, I would think the capacity stops where the little holes in the baffles stop though (ie: if all the little baffle holes are submerged, I don't see air flowing through them if the two can halves are sealed from one another). Still, that's a good sized can it looks like.

The OP can't use this 4-port can though if he maintains the PCV as planned.

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it is a closed loop 4 port can correct or am I missing something?

all black 4G63 said:

it is a closed loop 4 port can correct or am I missing something?

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That is a "closed loop" 4 port can, yep

all black 4G63 said:

Thanks for the info.

Huuum i wonder if the duel radium cans will be enough? I could get two tall signals but that would be pushing $500

I will eventually boost as much as I can out of this street car build. However, I have not bought the turbo yet.

All I know is that I previously shot oil out of my dipstick tube all over the motor, so I disassembled and re-honed and everything is good now (cylinder compression--long story). I am just taking precautions to prevent this fresh motor from damage. I really believe I I'll sleep better having a closed loop system.??

I do have the JMF 2 port vented catch can, but am hesitant to use it with a PCV valve going to the cover. I would imagine this would be huge vacuum leak at idle and cruise? I would like to maintain my PCV valve do to the fresh motor rebuild and integrity of the oil?

However, I am open to suggestions.

thank you

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I have no idea if the Dual Radium cans will be big enough for you; that would depend on how much blow by your motor makes and your threshold on tolerating emptying the cans. I really wish I had a better answer for you... if you are worried that the cans will be too small and you would have to empty them out too frequently, then you might want to look for bigger cans I guess.

I don't think the JMF (vented to atmosphere) can would work with PCV. The only way you could still use the vented JMF can with PCV is if the JMF can is only connected to the valve cover breather port (and I guess you would cap off the 2nd port), but then it wouldn't be a closed loop system like you are trying to achieve. No go for what you are trying to do.

all black 4G63 said:

it is a closed loop 4 port can correct or am I missing something?

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I've always been under the impression that for Calan's "Improved Stock PCV Setup" that you need 2 separate sealed cans. Come to think of it, I don't know if the PCV valve itself would work properly (the metering function, that is) if you you used a single 4 port can. In that scenario, I would think that under heavy load (but no boost) the intake manifold would pull more air out of the valve cover side port than the PCV valve since it would always be easier to pull air through the side port. I'm not sure that's a bad thing though? I just don't know anyone that's done it that way.

It may not be ideal or most efficient, but I started installing mine this way.
I would like to know if there's any issues with it before I finish. My only issue is the check valve, want one that isn't plastic that will crack open with low vacuum but keep shut with decent boost psi. Not exactly sure what the vacuum opening pressure values are acceptable.

Seems like you might end up with idle issues with an open port from pre-throttle plate to intake manifold.

yes using a vented catch can while maintaining your MAF will cause unmetered air to be pulled via PCV during vacuum conditions causing lean A/F and idle issues.

talon77 said:

That is a "closed loop" 4 port can, yep


I have no idea if the Dual Radium cans will be big enough for you; that would depend on how much blow by your motor makes and your threshold on tolerating emptying the cans. I really wish I had a better answer for you... if you are worried that the cans will be too small and you would have to empty them out too frequently, then you might want to look for bigger cans I guess.

I don't think the JMF (vented to atmosphere) can would work with PCV. The only way you could still use the vented JMF can with PCV is if the JMF can is only connected to the valve cover breather port (and I guess you would cap off the 2nd port), but then it wouldn't be a closed loop system like you are trying to achieve. No go for what you are trying to do.


I've always been under the impression that for Calan's "Improved Stock PCV Setup" that you need 2 separate sealed cans. Come to think of it, I don't know if the PCV valve itself would work properly (the metering function, that is) if you you used a single 4 port can. In that scenario, I would think that under heavy load (but no boost) the intake manifold would pull more air out of the valve cover side port than the PCV valve since it would always be easier to pull air through the side port. I'm not sure that's a bad thing though? I just don't know anyone that's done it that way.

https://www.dsmtuners.com/threads/the-4g63t-pcv-system.366890/

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you do not know anyone that has run a PCV valve with a 4 port closed loop can?

all black 4G63 said:

you do not know anyone that has run a PCV valve with a 4 port closed loop can?

Click to expand...

all black 4G63 said:

you do not know anyone that has run a PCV valve with a 4 port closed loop can?

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No, I do not. I’ve only heard of keeping the PCV if using a separate second catch can.

With that said though, if you are worried that the Radium Dual is too small, then maybe consider just get one large 2 port sealed catch can (ie: Radium competition tall or anything equivalent) for just the valve cover breather port and just have no can for the PCV? See link suggesting that the PCV side not really putting out that much oil (post 4 & 7).


Maybe run just one can and monitor your intercooler pipes once in awhile. If you see the piping start to oil up over time, then add a second can to the pcv side only as needed? Save a few bucks this way too

As a side note that might be “out there”, and not really even comparing apples to apples, I used to run 2 separate (2-port) sealed catch cans (both connected to the intake pipe) and my valve cover had 2 equal sized breather ports (no pcv). All factory valve cover baffles in place. The valve cover port facing the passenger side ALWAYS collected waaaay more liquid gunk than the port facing the firewall. My two cans weren’t exactly the same, so as an experiment, I swapped the hoses to see if the difference volumes collected was due to the different cans. Nope, the difference was solely because the passenger side port always discharged more for whatever reason. Based on personal experience, I am inclined to believe that the passenger side port just catches most of the liquid gunk.
Again, if it were me and if I were hesitant of the Radium Duals being too small, then I would just get one big sealed can for the passenger side valve cover breather port and see what happens. My two cents

USMCGSX said:

I thought I saw it in a diagram but I just opened it up to find out. Pics for the curious. Put it next to a 2L soda bottle for size reference.

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so I bought this same can and I can see that there is no filter inside like you show in yours. I wonder what's going on here???

I also bought the same can about a year ago. Mine did not come with that screen, just the separator plate. I had both valve cover breathers going to two ports and the other two going to the intake pre turbo. At least for me the can seemed to catch nothing. Just pulled the oil right through. I ended up putting two breathers on the can and just running it vented. Havent run it yet to see how it goes.

I called Vibrant and they said that the drop in filter will be available in the new year Part# 12699. However, they said that this was designed to address oil leaking from the can seal at the top. I did too go with this catch can as well and just installed it.

Really like your valve cover breather setup. Was going to do the exact same thing. Little pricey but def looks great. With just the seperator plate my can did not catch much. Most of the oil would end up getting pulled all the way to the intake, maybe that screen would help.

USMCGSX said:

I thought I saw it in a diagram but I just opened it up to find out. Pics for the curious. Put it next to a 2L soda bottle for size reference.

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Is this a two port vented can with a 4 port top on it?

I ordered part number 12697. If I received some sort of oddball or the other guys got pinched, I can't say.
Got mine from amazon though.
Vibrant Performanc 12697 Fuel Air Separator 4 inch