The "Catch Can" Explained - By Elite Engineering

flyingfool · January 26, 2019

On 1/24/2019 at 8:35 AM, SS502 said:

These are pressure regulators/oil separators designed for the BMW/AUDI and I see no way to empty them even if hooked up correctly. What are you accomplishing (other than valve cover vent pressures) with these? So do you hook them up to the valve cover vents and then straight to the air box or how is it you have them routed? I must be missing something, the UPR, RXP and Elite all bridge the valve covers (if a CSS is used) and the main flow of things is from the dirty side out either on the valve cover valley on the 5.3 or just to the lower side of the TB on the 6.2 routed through the can and back to the clean side in near the top of the TB. Oil and other nasty stuff is caught in the can (which can be emptied and needs to be BTW) before it can be ingested down the TB, into the intake manifold and then into the cylinders. At best, I can see these replacing the CSS but it would look pretty funny. Pictures please??

they are very easy to drain, you can install a vacuum plug at the drain port, or a clear hose on the drain port so you can see it fill with oil.

see my trucks picture for hook up to the valve cover.

I would like to try the triple cyclone off the vw/audi shoot it's only $35 on amazon.

SS502 · January 26, 2019

12 minutes ago, flyingfool said:

they are very easy to drain, you can install a vacuum plug at the drain port, or a clear hose on the drain port so you can see it fill with oil.

see my trucks picture for hook up to the valve cover.

I would like to try the triple cyclone off the vw/audi shoot it's only $35 on amazon.

I did see your pictures, thank you! I get where you’re going but (and don’t take this as an attack please) your set-up is doing the same thing a CSS does albeit for a little less money and a LOT more plumbing. Still with that said I’m sure it is functional. My concern on your set up is you in no way address the “PCV” port to intake port where most of the nasty stuff is coming from. I may be WAY WAY WAY off base here and if so I apologize now.

flyingfool · January 26, 2019

the PCV gasses are separated from heavy oils, cleaned and fed back to the intake to be reburned. the heay oil I've collected sit in the drain tube , i managed a table spoon of oil in 400 miles

i will inspect the intake valves when i swap the intake manifold to high flow intake

Elite Engineering · January 26, 2019

56 minutes ago, flyingfool said:

Ok here's my BMW cyclone oil separator hooked up to the vavle covers, feeding to the cyclone, then routed back to the air intake ...

total cost was $25.00

The only thing I would suggestion, just make sure it's doing a good job. There are a lot of Catch Cans on the market, but some have no internal baffling, and are nothing more than empty cans with some fittings on the side. We have done years of testing, and have testing tons of Catch Cans against our own. Again, just be sure your catch can is working properly.

SS502 · January 26, 2019

19 minutes ago, Elite Engineering said:

The only thing I would suggestion, just make sure it's doing a good job. There are a lot of Catch Cans on the market, but some have no internal baffling, and are nothing more than empty cans with some fittings on the side. We have done years of testing, and have testing tons of Catch Cans against our own. Again, just be sure your catch can is working properly.

Please advise...do you see on his set-up where the dirty side out to clean side in is even being addressed? From what I can see, it is basically functioning as the CSS used by the better catch can systems? I can see is he is bridging the valve covers, tee fitting off to the filter he is using and then directly to the air plenum on drivers side with the passenger side capped.

Joe@UPRproducts · January 26, 2019

2 hours ago, SS502 said:

Please advise...do you see on his set-up where the dirty side out to clean side in is even being addressed? From what I can see, it is basically functioning as the CSS used by the better catch can systems? I can see is he is bridging the valve covers, tee fitting off to the filter he is using and then directly to the air plenum on drivers side with the passenger side capped.

Exactly, where is the dirty line protection? The way the system is routed it's only protecting the air box from ingesting oil. It's missing 90% or more of the possible oil ingestion.

SS502 · January 26, 2019

26 minutes ago, Joe@UPRproducts said:

Exactly, where is the dirty line protection? The way the system is routed it's only protecting the air box from ingesting oil. It's missing 90% or more of the possible oil ingestion.

Yep, there is no dirty side out protection. Thank you for addressing the question I posed.

Elite Engineering · January 26, 2019

5 hours ago, SS502 said:

Please advise...do you see on his set-up where the dirty side out to clean side in is even being addressed? From what I can see, it is basically functioning as the CSS used by the better catch can systems? I can see is he is bridging the valve covers, tee fitting off to the filter he is using and then directly to the air plenum on drivers side with the passenger side capped.

No, you're correct. I don't see anything addressing the "dirty-side" of the engine. The way it's shown, is only protecting the clean-side.

flyingfool · January 27, 2019

yes your right i will have to tap into the pcv next, I am amaized at how much oil vapor i'm condensing off the valve cover ports. all this oil vapor has got to be causing issues with the air flow sensor behind the air filter, on top of disrupting airflow over the intake valves

found another cyclone oil trap from a C70 Honda Passport $8 from ebay , uses smaller hose fittings , should fit right into the pcv line

Joe@UPRproducts · January 28, 2019

It's extremely critical to keep the vacuum stong and airspeed up so be sure to have the least restrictive setup possible on the dirty line of the PCV system. This is where the vacuum is utilized to help the rings seal and evacuate crankcase pressure which is very similar to a vacuum pump. So basically, you will be introducing a reduced flow/small line system where you should have something that flows the same as factory or better. I would really be looking for a much higher flow unit to go in the PCV line so you do not lose the benefits of the strong vacuum signal from the intake manifold.

This is the reason we build UPR Plug n Play™ Catch Cans with OEM and larger UPR braided hoses and UPR plug n play™ fittings so they always flow the same or more than the existing line/setup. It's very important to keep your PCV system flowing smooth and maintain vacuum at all times as any snake down in line is detrimental to the efficiency of the PCV and the overall performance and mpg of your vehicle. The benefits of the oil you catch will be negated by the lack of vacuum and any restriction smaller lines and traps can cause.

You have the right idea, just need to get some serious flow parts to accomplish oil control while maintaining the same or better vacuum.

Hope this helps.

Joe

SS502 · January 28, 2019

17 minutes ago, Joe@UPRproducts said:

It's extremely critical to keep the vacuum stong and airspeed up so be sure to have the least restrictive setup possible on the dirty line of the PCV system. This is where the vacuum is utilized to help the rings seal and evacuate crankcase pressure which is very similar to a vacuum pump. So basically, you will be introducing a reduced flow/small line system where you should have something that flows the same as factory or better. I would really be looking for a much higher flow unit to go in the PCV line so you do not lose the benefits of the strong vacuum signal from the intake manifold.

This is the reason we build UPR Plug n Play™ Catch Cans with OEM and larger UPR braided hoses and UPR plug n play™ fittings so they always flow the same or more than the existing line/setup. It's very important to keep your PCV system flowing smooth and maintain vacuum at all times as any snake down in line is detrimental to the efficiency of the PCV and the overall performance and mpg of your vehicle. The benefits of the oil you catch will be negated by the lack of vacuum and any restriction smaller lines and traps can cause.

You have the right idea, just need to get some serious flow parts to accomplish oil control while maintaining the same or better vacuum.

Hope this helps.

Joe

...and you will probably end up with a CEL if the flow is diminished.

Elite Engineering · January 28, 2019

6 minutes ago, SS502 said:

...and you will probably end up with a CEL if the flow is diminished.

This shouldn't be an issue, if it is, please let us know.

SS502 · January 28, 2019

23 hours ago, flyingfool said:

yes your right i will have to tap into the pcv next, I am amaized at how much oil vapor i'm condensing off the valve cover ports. all this oil vapor has got to be causing issues with the air flow sensor behind the air filter, on top of disrupting airflow over the intake valves

found another cyclone oil trap from a C70 Honda Passport $8 from ebay , uses smaller hose fittings , should fit right into the pcv line

3 minutes ago, Elite Engineering said:

This shouldn't be an issue, if it is, please let us know.

Diminished flow SHOULD cause a CEL...he is planning on using the item pictured. If your stock line gets clogged it's gonna kick a CEL.

Elite Engineering · January 28, 2019

4 minutes ago, SS502 said:

Diminished flow SHOULD cause a CEL...he is planning on using the item pictured. If your stock line gets clogged it's gonna kick a CEL.

You're correct, but with a properly flowing Catch Can set-up, there should not be any issues