Oil Catch Can

[Adz2332]

Aftermarket oil catch cans, are they legal??

http://www.ebay.com.au/itm/Oil-Catch-Can-R32-R33-R34-S13-S14-S15-EVO-WRX-STI-RX7-XR6-BA-BF-Commodore-VT-VZ-/290630168434?pt=AU_Car_Parts_Accessories&hash=item43aae86f72

[zebra]

If plumbed back into the intake yes.

PS those cans are rubbish...might as well not have one

[Adz2332]

not i wasnt saying that one exactly, just that style.

[TiTAN]

as long as it does not vent to atmosphere it is legal.

[Adz2332]

Ok thanks guys!

And as far as good and bad catch cans, there just cans! as long as they dont leak how is one better then another?

[zebra]

they need baffles and all sorts of witch craft to actually do a decent job

[Hanaldo]

Ok thanks guys!

And as far as good and bad catch cans, there just cans! as long as they dont leak how is one better then another?

There's a difference between a simple 'catch can' and a proper oil/air separator.

[KiwiRS4T]

Ok thanks guys!

And as far as good and bad catch cans, there just cans! as long as they dont leak how is one better then another?

Size need to be at least 2Litres (or to suit regs if you're racing)

and some kind of baffle system to encourage oil and water to precipitate into the can and just let the gas go out (to atmosphere for track car or inlet for street car).

[The Bogan]

The can must not be a restriction either, the return hose/filter must be as big if not bigger than the inlet side of the can.

[luvpsi]

From what I have heard the d1 spec cans do a decent job

[Hanaldo]

From what I have heard the d1 spec cans do a decent job

Nope. I have one currently. Utter rubbish.

Will be getting a proper oil/air separator custom made in the near future.

[luvpsi]

So what is custom the way to go?

[Hanaldo]

There is probably a viable off-the-shelf item, but I want mine to sit in a specific spot so custom is the way to go for me.

That said, I'm yet to actually find a decent looking off the shelf one... Anyone had much luck with that? I know RIPZ makes them, but I believe only on request?

[bigkevracer]

I've got a Greddy, but it doesn't seem to be a proper oil/air separator.

You've got me looking for a replacement now...

[luvpsi]

Rips ones vent to atmo so they illegal would a normal average catch can with steel wool separate correctly

[SargeRX8]

What does a good can look like internally? All I've seen is cans with that steel wool like shit inside them...

[luvpsi]

im not to sure im trying to work it all out myself now but as i mentioned before would steel wool do the trick

the only way i can think it would work is say you have the inlet and outlet next to each other and have a partition/baffle in between made from fine steel wool so its like divided into 2 tanks inside by the steel wool so air and oil go in one side and just air comes out the other because the steel wool has caught the oil on the way through

Edited November 22, 2011 by luvpsi

[KiwiRS4T]

If you had a square tank you could easily make baffles out of square pieces of metal which left a gap and alternate the gap left and right so that the stuff that comes in has maximum contact with the plates and the liquids drip down to the bottom of the tank .

[The Bogan]

Baffles, volume and flow.

[BMYHOE]

this is what i am going to run..