newsnose

sub'd

Tuner Boost

As the temperatures change the amount caught will as well. Far less water is present in the warmer months than the colder ones, so this is a fairly straight forward test, and done independently with no bias. You can also perform the test with the cans swapped as well. We do this with every can that we see come on the market and that allows a pretty close estimate in what ones are truly effective, and by what percentage. You can also do this test with a small air compressor separator behind any can, but they allow a good deal of pull-through so although it shows if a can is effective or not, it wont give an accurate measurement like this does. As the OP describes, he is starting with both cans cleaned and as long as at the intervals both are drained and measured, this is a very accurate test that can be performed with any can.

This will be a good thread to watch the outcome of, and has been done by several over the years that wanted to see for themselves as we all claim the "best".

jgiddy

Subbd. TunerBoost, does the RX can use the same size hoses as the UPR can?

FoX2012

I think this thread definitely has merit. After this test is completed, I would recommend doing it the other way...place the UPR can after the RX one to see if it is indeed the "end all be all" of catch cans.

FoX2012

Just my experience, after 1000 miles, my UPR catch can (dirty side) caught all of about 1/2 teaspoon of water driving in the city/mountains of CO this winter. It had a strong fuel smell (as did the oil), but that is about it.

Ford850

Thanks for the feedback so far. Like I said, this will take some time for me to accumulate enough miles to have valuable results.
To answer some questions...
- Yes I plan to do the reverse test, with RX first and UPR in line after it. I'll see how this first round goes, and then decide if I still want to do that.
- The hose sizes are what come standard with each can. The UPR comes with 1/2 or 5/8" (not sure), and the RX is 3/8". I like the way I could route the 3/8" hose from RX without it collapsing the way the bigger hoses do. The OEM hose is an odd material. It looks to be assembled and then heat shrunk into a fixed, hard, shape. It's smaller than 1/2" and the bend portion is even narrower.
- My UPR can collection rates varied a LOT over the past months. I think December caught mostly water, and it was collecting at many times the rate as any other month, which seems to be normal.
- I'm happy with the UPR can has done for me. I also thought Tuner Boost was full of it when he claimed most cans allowed flow though. I figured they would somewhat, but I was surprised to see how wet that outlet hose was when I removed it from the UPR can before cleaning. Maybe the RX will do the same after the test though. Time will tell, and I'm as curious as anyone to see how they compare.

Shaggy1970

Sub'ed

cartmanea

You definitely should reverse the cans after a while for an accurate test, since the second can will see cooler flow through it which will condense more. One concern I have is the added restriction of the second can in your PCV system will reduce your evacuation flow significantly.

Tuner Boost

I agree (we have done it many times over the past 12 years)

Is yours a 5.0" Or a EcoBoost? The fuel should not be present in a 5.0 or 6.2 as they have a correctly designed PCV system unlike the EB that allows all of this to accumulate in the crankcase.

Absolutely. Only fair as we have stated all along. We have done these same tests with dozens of cans over the years as we purchase every can we see on the market and do the tests then we dissect (some cut apart lengthwise to show in detail the inside designs) them and add to the photo gallery with test results. Anyone that has visited has seen these in person. There is no restriction in the RX can when flow is measured form inlet to outlet due to the internal design and the coalescing media used (a stainless mesh).

Always like to see the outcome of these tests, both ways as well (again, we do this with every can we see on the market or would be horrified that someone was doing a test like this in public) and that is also why we list the ones that tested effective and the test will only show a small amount gets past them even though it is an endorsement of sorts for a competitors product...not very good marketing were told! This challenge has been out there for years, yet very few ever do it themselves to see.

FoX2012

Not to get off topic, but it is an ecoboost. However, I have had the same fuel smell in oil on my previous cars...Subaru Forester (turbo), Honda Accord (n/a v6) and mildly in my Z28 (n/a LS1). No problems in any of the vehicles, though I ran catch cans in the Forester and Z28 which also only caught spoonfuls of oil/water between oil changes.