Catch Can Confusion

[ramm440]

Ok, I agree they are beneficial to the 2.0 but haven’t been able to decide if a single clean side VENTED can will be as beneficial as a dual NON-VENTED (one clean side and pcv side) can set up is better. I planned on buying a plug and play. I wont mention the two manufacturers I am considering. Can someone please give me their experience?

Sponsored

 

[jewc75]

I run a dirty side only on my EB and my 5.0 Mustang.

 

[Superg0]

Dual cans, protect valves and turbo. Only have 800 miles on mine but removed some from both cans already

 

[mluckey]

Since you're asking for experience, here's mine.

I've been running high boost cars for decades (I also tend to keep cars an average of 15-20 years). I've found that non-vented catch-cans generally result in better performance.

As far as clean versus dirty-side? In GDI cars, the clean side is generally more important than dirty. That being said, it may be different if you tend drive shorter distances, where the engine doesn't get a chance to fully heat up. In these cases, the dirty-side is as important (maybe more important) as clean-side since the oil temp may not get hot enough (or stay hot long enough) to vaporize fuel-vapors.

Mark

 

[ramm440]

Thanks, This helps in deciding which route to go. I am still unsure if the amount of blow by being vented by a vented can might increase efficiency or not.

 

[Rwills]

Ok, I agree they are beneficial to the 2.0 but haven’t been able to decide if a single clean side VENTED can will be as beneficial as a dual NON-VENTED (one clean side and pcv side) can set up is better. I planned on buying a plug and play. I wont mention the two manufacturers I am considering. Can someone please give me their experience?

Which side carbons up the valves? Dirty or clean side?

 

[ramm440]

Tried to do a dry run on removing the Orange upper CCV tube connectors with a pic but stopped before I broke them. I guess Fiord is making bank on these as they are used on other models. The video from theUPR guy seems to have done it with a pic but I'm pretty sure he had done the video with one he was extremely persistent with.

 

[ramm440]

Rwills
Which side carbons up the valves? Dirty or clean side?


Most Ive read its the clean side but I am no expert. I am probably going to do both but wondering why Fiord has done this. Is this really them trying to please the EPA or sell parts and use that as an excuse?

 

[mluckey]

@Ram440 said: "Most Ive read its the clean side but I am no expert. I am probably going to do both but wondering why Fiord has done this. Is this really them trying to please the EPA or sell parts and use that as an excuse?
Sponsored"

@Ram440, I'd agree, but .....

I'd add the fact that Ford has had deals with multiple manufacturers (Volvo/Mitsubishi/Mazda etc) where this sort of vapor recovery was common (Volvo in particular). The Volvo S40 (Ford/Mitsu/Volvo venture) had a similar "dirty-side" trap/condenser for the block/cold vapors. It captured and resent them through a capture-system, then that vapor entered the intake.

That system, although fussy, didn't affect the longevity of Volvo engines, though it was a P.I.T.A. to change out. Ford may have simply shamelessly stole from their own ideas with this setup. Easy to rethink the already existing solution.

Money sometimes talks where product development is concerned.

Mark

 

[RLmesc]

Which side carbons up the valves? Dirty or clean side?

Clean side

 

[RLmesc]

I bought two occ and only installed the clean side. I learned that the dirty side only bypasses the Ford factory oil separator which defeats the OEM equipment purpose.

 

[mluckey]

I bought two occ and only installed the clean side. I learned that the dirty side only bypasses the Ford factory oil separator which defeats the OEM equipment purpose.

Agreed! The OEM setup on the dirty side works well enough that I plan to skip messing with it, and put in the same kind of modded Chinese catch can/oil-air separator that I used on my Dodge turbo-car for the last 20 years...on the "clean side".

On another note to anyone pondering this is.....I'm wondering if these "dirty" side catch cans are even as efficient as the stock, baffled separator? Is there any proof that the stocker isn't catching the same amount?

Mark

 

[FHFR3Maverick]

I have both sides installed and have just a few hundred miles so far. Definitely getting some drop out on the dirty side. I would be very careful on using a "vented" can. The fuel system calibration is for the intake system to be "sealed" from the air box to the exhaust. The crankcase is part of that through the 2 breather hoses. Any air not accounted for will change the mixture and have the ECU adjust for that until it can't go far enough to compensate.

 

[jb_cb900]

Just to clarify of few things about clean and dirty side catch cans on the 2.0 Ecoboost.
The clean side catch can (in-line from valve cover breather port) accumulates very little blow-by, period. In 15k miles I've emptied about an ounce out of that can.
The dirty side catch can does NOT replace, or by-pass, the oil seperator mounted to the engine block. It is in series and attaches to the intake after the turbo charger. This can catches a lot. During the summer there will be several ounces of a thick oily mess in the about every 2k miles. In the winter, it will fill much quicker with a thin oily mess resulting from colder temps and condensation. This is the nasty stuff that's coating the valve stems.
If you're buying 1 catch can, I'd put it on the dirty side.

 

[Tbone289]

Just to clarify of few things about clean and dirty side catch cans on the 2.0 Ecoboost.
The clean side catch can (in-line with PVC) accumulates very little blow-by, period. In 15k miles I've emptied about an ounce out of that can.
The dirty side catch can does NOT replace, or by-pass, the oil seperator mounted to the engine block. It is in series and attaches to the intake after the turbo charger.

The clean side can is in the breather line, not the PCV line as you stated, and outputs into the intake upstream of the turbo. The dirty side can is on the PCV line after the oil separator and PCV valve and outputs directly to the intake manifold.

The dirty (PCV) can collects more crankcase vapor than the clean side for most drivers, depending on driving style. Under frequent non-boost vacuum conditions, the PCV valve opens and vapors are routed through the dirty side can and directly into the intake manifold.

The clean side catch can collects vapors less frequently, only when the intake manifold is pressurized under boost conditions, when the dirty side of the circuit is closed by the PCV valve. Due to outputting into the intake upstream of the turbo, it keeps vapors from collecting in the turbo and intercooler. Drivers who spend more time under boost conditions will need to empty the clean side can more often than those who don't.

Sponsored