How to Intsall a Oil Catch Can on a RB20DET??

[davidl]

Hey Guys,

I am sure someone must have done this before. Is there any intsructions flying around on how to install a catch can on a RB20??

[DCIEVE]

just plumb up the two cam breathers to a can of some description, use rubber/braid/silicone hose. Where the original hoses went into the plenum and inlet pipe are one way valves but i covered them up with rubber grommets regardless

[dangerous_daveo]

just plumb up the two cam breathers to a can of some description, use rubber/braid/silicone hose.  Where the original hoses went into the plenum and inlet pipe are one way valves but i covered them up with rubber grommets regardless

When you did this did you have any problems with your idle dropping? Say about 2-300rmp. Because we just blocked the hoses, didnt use grommets because we were after a more 'stock (less attractive to the cops)' look. And now the barstard is idleing lower. Im just worried Im doing damage, and then more damage by turning up the idle to compensate.

Anyone have any thoughts on this?

[BHDave]

Make sure you have some kind of vent on the can if you are plumbing up both hoses. If the system is sealed then you will pressuise the sump (which isn't good). You are better having the catch can venting back into the intake pipe as it is less likely to be defected and the car wont stick of oil when you are on boost.

dunno about the idle issue though

[Remix-]

Can anyone provide some pictures of their installations?

[MerlinTheHapyPig]

well, if you wanna go ultra-dodge:

that's a CA18DET, but the same principle applies. The garden hose + softdrink can is not legal btw (incase u hadn't guessed)

[MerlinTheHapyPig]

here is a guide to install a proper oil catch can it on an RB20DET

http://www.rb20det.com/fitting_an_oil_catch_tank.html

[NA_R33]

why can u not just plumb the catch can inbetween the breather and the intake pipe, and you dont need to block the PCV valve.

[yogi000]

cant you just put it between the two arrows in the picture and all would be sweet???

PS. Dont mind the garden hose.

Cheers

[Nozila]

can this be applied to rb25's?

[loz]

does the this apply to the rb26dett as well

[loz]

does the this apply to the rb26dett as well

[Jolinator]

here is a really shitty phone camera pic i took, of catch can installed on my rb20det, still using pcv valve, and its hooked in between the right hand cam cover and the inlet pipe for the turbo

[yogi000]

jolinator,

thats one shiney engine bay. Just out of curiosity does it catch much oil???? Do u drain it???

Cheers

George

[Mr R32 M-Spec]

For the GTR you can get a pretty cool one from autosport at kirrawee

It sits ontop of the engine and connects using all of the stock hoses to plumb back through making it Legal. I bought one for mine thats here next week. link below

http://www.autosport.net.au/oilcatch.htm

polishes up nicely with some autosol

[Jolinator]

ive only had the catch can for a few weeks, but i havnt drained it ever, you dont have to drain if often from what i hear, it has a little level gauge on the side so i can see how much is in there,. i wasnt impressed with the Jap catch cans ,because there hollow, so i got this made for my car in perth,

[yogi000]

what are they suppose to be inside????

[Jolinator]

the greddy and cusco ones are hollow milo cans with nipples on them, from what i understand mine has baffles and stainlesss steal wool

[Remix-]

cant you just put it between the two arrows in the picture and all would be sweet???

PS. Dont mind the garden hose.

Cheers

Is this correct? So the oil catch can does not need to vent to atmos?