Oil catch tank
Hey guy's 🤙
Just wondering what you guys have done for a catch tank system, I don't fancy paying 400 odd pound for a tank and hoses lol I'm going to make my own catch can kit, blank off the two smaller breather hoses on the rocker cover, use just the one big breather outlet on the rocker covers and use a 3 port catch can. I know these engines have negative crank case pressure so will require vacuum from the turbo intake pipe. Is there anything you guys recommend or am I missing something? https://cimg1.ibsrv.net/gimg/www.sco...2e32a5768f.jpg Pic for attention Thanks 😊 |
Don't use the large 16mm breathers on the cam covers a they are not baffled internally, they are just a balancing system only, just use the small 12mm ones they are baffled, & use a baffled catch can, otherwise your wasting your time.
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Originally Posted by MOTORS S GT
(Post 12094882)
Don't use the large 16mm breathers on the cam covers a they are not baffled internally, they are just a balancing system only, just use the small 12mm ones they are baffled, & use a baffled catch can, otherwise your wasting your time.
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Have you considered an air/ oil seperator?
I've fitted one to my road tune 08 STI and it works perfectly. No maintenance or emptying needed. Mine sits on the oil filler so any oil goes back to the sump. |
Just buy a cheapish ebay oil catch can and aos and run both, a catch can is a catch can tbh, no need to pay 400 quid for one. Also don't return to sump imo, the oil gets whipped up in the cans and you don't want that mayo like ish in your engine
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Originally Posted by MrRtm
(Post 12094928)
Just buy a cheapish ebay oil catch can and aos and run both, a catch can is a catch can tbh, no need to pay 400 quid for one. Also don't return to sump imo, the oil gets whipped up in the cans and you don't want that mayo like ish in your engine
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I don't know if there's a better setup as it came like this but I have an aos/catch can setup that goes:
Crank Case Breathers > T piece > AOS > Catch Can > Turbo Inlet My pcv goes into the turbo inlet and is not "caught" but would probably be better if it was |
I run an aos into catch can and vent
https://cimg1.ibsrv.net/gimg/www.sco...6d2d919bde.jpg https://cimg5.ibsrv.net/gimg/www.sco...8164e39ad7.jpg PCV runs direct to aos then head breathers vent into oe hard pipe then into aos. Return for aos goes into catch can and just vents. No return into inlet |
I bought a catch can on ebay for around 14£ delivered , i did buy some stronger pipe but that was not much , i just do a single catch can off the pcv valve to intake pipe , i cut up a new sponge and put in the in the can as a baffle , it works very well , if you wanted it would be very easy to do it off the rocker breathing system but i’ve never needed to , i was getting a slight puff occasionally on start up , i’m on quite a slope so any oil that got into the ic was running over night into the throttle body , but most ebay catch cans are fine and around 20 £ or so , i did think of a dual port one but for me i don’t really felt i needed it , easy to fit too, pipe was 13x20mm
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IMO you want to run it off both the head vents (these can be tee'd into one) AND the crank case vent on two of the three ports on a three port catch can, and then use the third as the outlet back to the intake.
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the single port catch cans are cheaper so you could buy two and do things that way , or as above use a dual port one and plumb them into that
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