Agent_D

iTrader: (2)

Was going to get one of these since I removed the stock setup with all the rats nest under the intake on my car.

Question I have is, does it matter which brand I get? Will and ebay cheapy work just as well as any other I could get? It doesn't seem there is anything special to them so I would rather spend 10-15$ on one than 100$ on a Cusco/Greddy that doesn't offer anything better than the cheap one.

Thanks for info.

Trots*88TII-AE*

iTrader: (11)

I believe the only differences are obviously build quality, and since it vents to the atmosphere, there's no need for absolute quality welds or anything, it just collects oil. I've seen it done with beer cans before.

Agent_D

iTrader: (2)

Yea I've seen some DIY articles doing it with PVC piping and what not, just wanted ot know if there was anything special that the more expensive ones did that made them worth buying. Thanks.

TitaniumTT

No, that's completely wrong. There is generally a huge difference between they way they work. Some vent to atmosphere, others recycle the fumage

The more expensive ones generally have a filter media to catch the oil "mist" and then allow the fumage to be pulled back into the intake.

The cheaper ones generally just catch everything and have a filter on top to keep the crankcase as close to atmoshphere as possible.

I've never found one that I liked the look of or how it mounted so I built my own after stealing a few bits from the Jaz can that I bought



https://www.rx7club.com/fabrication-250/how-make-home-made-catch-can-784948/

Agent_D

iTrader: (2)

I just found a bunch more articles outlining what a proper catch can is supposed to do. And TTT is right.

Also, TTT I wish I had access to, and the ability to use properly, all the tools you have. I would make a bunch of little things I have idea's for for my car lol.

FC3S Murray

iTrader: (7)

I have the bay one. Cheap and effective. I just mounted it to the PS bolt holes after I removed the factory studs.

Agent_D

iTrader: (2)

I'll probably end up picking up one of the ebay 20$ ones and mount it similar to yours murray. Right now it doesn't have anything hooked to it so the area behind and below the outlet on the oil pour tube is dirty.

Trots*88TII-AE*

iTrader: (11)

Well, all I claimed that there is no difference between a Cusco can, and a cheap e-bay can. Can you tell me the direct functional differences between this and this?


I agree, there are many different types of crankcase venting, some aftermarket ones vent to the atmosphere, some the intake, whereas all modern Positive Crankcase Ventilation systems vent to the intake (for emissions). In terms of performance, there is no advantage to venting back to the intake as opposed to venting to the atmosphere, in fact venting to the atmosphere would be better, to avoid having any contaminants re-enter the intake.

Regardless of design, the purpose is the same, and the two that I mentioned do the same thing, they vent the crankcase and trap excess oil.

I like the one that you made, simple and functional. Did you use any baffling/filtering in the body of your catch can, or does it just catch everything and have a filter on top?

Agent_D

iTrader: (2)

I was just about to ask something similar to what you posted. If it vents to the atmosphere with a filter like TTT has on top, it only needs 1 tube going from the outlet into the oil catch can right?

Oh ok, I looked at your picutre more closely on the ebay one you bought, ran the line to one side and hooked a filter on the other. Looks pretty simple and about what I wanted to do.

FC3S Murray

iTrader: (7)

Your best bet to catch all crank case residue is to "T" the line i have from the oil filler neck to the nipple right behind the intermediate iron. It would catch more debris. I plan on doing this once it gets above -25 F!

Agent_D

iTrader: (2)

The nipple that sit's on the motor and faces upwards? If so, good to know, and I'll do that.

TitaniumTT

***** yourself out It's worth it in the end

Without actually holding both in my hand, no. But niether can anyone else. I'm willing to bet that the elcheapo e-bizzle one doesn't have any filter media inside the can to catch cantaminents where as I seem to remember reading somewhere that the cusco one does. That's a pretty large difference in my eyes.

You were also talking about the ebizzle one venting to atmosphere where the Cusco one doesn't. Those are two large functional differences.

They don't really vent it. To me venting is just that, venting and making it go away. Those two sorta purge the crankcase fumes into the intake. On a turbo car connecting the output to the vac side of the turbo could under most circumstances put your crankcase unde a little bit of vacuum which wouldn't be a bad thing if it was properly baffled

Thanks, no baffleing, no filtering inside, just a simple catch tank. If I have issues with oil draining from the turbo's I'm going to make a second that has no vent on the top but instead plumbs into the vac side of the turbo to, as I said above, put the pan under a slight vac.

How would that catch more debris?

87 t-66

iTrader: (133)

i have a shitty ebay one...seems to work fine

w0ppe

I like my Jegs kit. It is one of the more expensive ones but hay; no problems here!

Agent_D

iTrader: (2)

Well I went and bought stuff today and put one together, just a simple PVC pipe one with an atmosphere vent. I'll probably just run it to the nipple on the oil fill tube for now, don't really want to take apart the intake to T off to the other nipple under the intake. Bad thing about S5 intakes, no openings to reach in there like the S4 intake lol.