Jump to content
SAU Community

Custom Oil Catch Can

racegtst

By racegtst,
in Western Australia

 Share

Recommended Posts

racegtst Community Regular

racegtst

Posted
Posted

I thought i would would share a few pics of my custom oil catch can. It is 2.5L.

My mate knocked it up for me fairly quickly so it has not been polished yet.

Excuse the engine (it needs a degrease) as it has been in the garage for about 12 months not really going anywhere.

Happy for comments.

post-13913-1265029436_thumb.jpg post-13913-1265029503_thumb.jpg post-13913-1265029550_thumb.jpg post-13913-1265029603_thumb.jpg

Link to comment
https://www.sau.com.au/forums/topic/306457-custom-oil-catch-can/
Share on other sites
racegtst Community Regular

racegtst

Posted
  • Author
Posted (edited)
just letting you guys know but having the breather on it make it illegal. nice job by the way

this is true but I never said it was legal!

This car is orientated to track duties and very rarely sees street use, usually only going from home to tuner and back so not a real drama for me.

Edited by racegtst
Pal Veteran

Pal

Posted
Posted

is there a line from the front of the turbo to the catch can or am i seeing it right (pic 3) your still going from the turbo to the top of the rocker cover. i may be wrong but all i can see is two lines from the rocker cover to the catch can. The line going to rocker cover from the turbo needs to be plumbed into the catch can as well to get a vacuum in the catch can to pull the gasses from the rocker covers.

Rowdy Collaborator

Rowdy

Posted
Posted

yeah... i dont think its really doing much, in fact its doing nothing for your right rocker cover, and the vacuum from the turbo is probably sucking the fumes from the left cover through the catch can anyway. is there a reason you didnt block off the hose from your rocker cover to the turbs?

it looks the goods anyway (Y)

ahh 33 s2 Mentor

ahh 33 s2

Posted
Posted

looks the good mate, got a few questions tho

is ur mate interested in making more of a different design, spex would be supplied

is it baffled

r u running a drain back to sump

is there any reason its on the passenger side, most cars run in on drivers side (something to do with the crank pressure helping it drain back)

cheers

dan

bubba Grand Master

bubba

Posted
Posted (edited)

The way the OP has it set up would be a huge vaccum leak and also would be sucking oily fumes straight from the top of the head into the intake, rendering the catchcan useless.

You can run your catch can atmo. if you block the return in the intake pipe and also block the PCV from the plenum to head. Then you just run your two breathers to the catch can and vent to atmo.

If you want to plumb your catchcan inline, then T the two breathers into one and run it to one port on the can, run the other port to the intake. It's best to fill the can with steel wool as in this situation it's acting as an oil/air seperator (even better to have a baffle in there too so the fumes have to go through the steel wool before exiting).

The atmo. setup above, is acting as a "catch" can and is more for high hp track cars that might be prone to breathing, you also don't want oil fumes in your intake when you run a lot of boost and timing.

Edited by bubba
racegtst Community Regular

racegtst

Posted
  • Author
Posted

Just been to the mechanic to ask his opinion.

He said that it is working fine and is doing it's job as a catch can. He also said that if i block off the PVC pipe then i will have idle and running issues etc.

Rowdy - the reason is that the mechanic advised this was the way to set it up. It is there to catch oil if i have a big issue and to allow the engine to breath when at the track.

ahh 33 s2 - my mate will be happy to buiild to your specs. if you are interested you can PM me your details and i will pass onto him.

I am not a mechanic so have to trust what the workshop says as they do a fair bit of work for drift, track and road cars predominatley Jap imports.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      Potential MAP Reference Point

      By GTSBoy · Posted

      Getting a decent signal from all 6 throats is a challenge. I don't know for sure, but I suspect that the stock balance tube is not ideal for it. I have done it on an ALFA 4 cylinder (about 35 years ago, so don't ask for too many details). We drilled 4x holes in the manifold runners, put in some fittings and ran hoses to a decent sized (I think it was about 20mm diameter) pipe that ran the length of the inlet manifold. So, it was quite a decent volume. There is a "tuning" balance to be found between the volume of the common plenum on such a thing and the diameter of the pipes running from it to the runners. You need the volume to be large enough to damp out the sharp spikes in pressure signal you get as each runner gets sucked on by its cylinder, but not so large that it becomes too slow to respond to actual changes in MAP. And you need the hoses to be small enough to transmit the signal quickly, but not so small that they delay the signal. You might have to have more than one go at it, if there isn't any actual success based wisdom to be had here. Hopefully there is. Anyway, I would not do it on only a couple of cylinders. I would also not care about "permanently modifying a part". Just bloody drill holes and make stuff better. There is nothing sacred about any GTR unless it is a genuine museum piece that you shouldn't be modifying at all anyway.
    • MBS206
      NC MX5

      By MBS206 · Posted

      He's still joining you, he's just delayed it and won't have the fulleh sick ITBs...
    • Kinkstaah
      R34 GTT front hood lip

      By Kinkstaah · Posted

      The strange thing is this is a URAS front bumper (or clone of it). The bumper actually does not sit flush with the GTT hood - You need the addon to make the hood 'long' enough to reach the bumper. I have no idea why they didn't incorporate this piece into the bumper itself.. instead of sticking it to the hood instead.
    • AdiR34
      R34 GTT front hood lip

      By AdiR34 · Posted

      Another thought on this OLD topic: When you paint your bonnet lip, leave a small unpainted back lip/line along the back of the lip, where it rests on the bumper. That way, the line in the back is much more prominent than the gaps in the front/under the lip - and it breaks the hood-to-bumper connection at the "correct" place, when comparing to a GTR. I'm gonna do this with mine this week, so stay tuned for pics!
    • Radical_Goodspeed
      Potential MAP Reference Point

      By Radical_Goodspeed · Posted

      So I'm in the final stages of assembling my single turbo RB30/26 and had a question regarding MAP reference points.  I've seen several recommendations such as tapping the cylinder 2/3 ITB, tapping the intake manifold at cylinder 2/3, or using a point on IAC. First two are doable but require permanently modify part and the third is "out" as I plan to delete the IAC.  All that to say my question is can I used the "bleeder" in the center of the ballance tube as a MAP Reference? I'm running a catch can so I don't need it for the PCV system. My thought process is it "pulls" from all 6 cylinder, and it's between the ITB and the cylinders making it ideal for MAP reference according to what I can find. Thoughts?
×
×
  • Create New...