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Old 17 April 2009, 05:35 PM
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classicwrx
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Default oil catch can

Hello all just got a oil catch can from the group buy has anybody got any pics of were and how to fit it please?
Old 17 April 2009, 05:55 PM
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the red thing at the front, with the green wires attached
Old 17 April 2009, 06:08 PM
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classicwrx
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tight fit there mate were did you plumb it into?
Old 17 April 2009, 06:16 PM
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http://www.scoobymods.com/forums/hel...tch-t2769.html
Old 17 April 2009, 06:16 PM
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Old 17 April 2009, 07:54 PM
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wrighty338
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That drawings helpful, but my japspeed cans only got 2 vents!
Old 17 April 2009, 08:16 PM
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JonMc
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Originally Posted by wrighty338
That drawings helpful, but my japspeed cans only got 2 vents!
Ditto
Old 17 April 2009, 08:20 PM
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dunx
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Default Huh ?

The whole idea behind fitting a catch-can is to avoid the oil fumes getting into the intake

HTH

dunx
Old 17 April 2009, 08:23 PM
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Originally Posted by dunx
The whole idea behind fitting a catch-can is to avoid the oil fumes getting into the intake

HTH

dunx
So what you're saying is that route back to the intake should be completely bolocked off and the crank and rockers should be connected to allow them to vent to the catch-can

If so that makes more sense to me and also makes it easier to fit
Old 17 April 2009, 08:37 PM
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Yeah, basically! only thing is there are 2 breathers and youve gotta get them into 1 tube to your car (using japspeed) so im gonna try get some more pipe + a T piece from a pond shop or something lol!
Old 17 April 2009, 08:53 PM
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But the 2 rocker cover breathers are already paired through the pipe on the front of the intercooler so connect that to one inlet, the PCV to the other, block off both inlet breathers and bob's you uncle
Old 19 April 2009, 12:10 PM
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Do you have to vent off the can's? As where would the excess pressure go from the breathers?

Also, I've read a lot to just plug the PCV outlet. Andy Forrest recommends this as well.
Old 19 April 2009, 12:13 PM
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That would enable you to vent from the other catch can outlet if you blocked all of the inlet hose connections. I recall on my cavalier just blocking the inlet and venting that hose to atmosphere via a small K&N or similar
Old 19 April 2009, 12:20 PM
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Is that all there is to breath.......the PCV (which I'm going to block), then the rocker breathers?

So then I can tee the rocker sides together, and use one port on the Catch Can....and vent the other like you said.
I'm going to have a FMIC on, so won't have the OE rails on the TMIC.
Old 19 April 2009, 04:24 PM
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Originally Posted by JonMc
But the 2 rocker cover breathers are already paired through the pipe on the front of the intercooler
are they

pics?
Old 19 April 2009, 04:58 PM
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Is that not what this pipe on the front of the intercooler is doing. Taking a breather feed from each rocker and running it down into the inlet hose

Old 19 April 2009, 07:28 PM
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mine aint like that, thats why im confused
Old 19 April 2009, 08:21 PM
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Grant74
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Shoot me down here, but fitted one of these on my old MR2 tubby, and a lot of similar debate on there.

I had mine plumbed in so that it took the PCv feed into the can, which then just had a breather on the outlet. Then blocked up the pipe into the intake, so no oily mess got in there.
Old 19 April 2009, 08:35 PM
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Just to add more confusion, I looked at how Slowboy had fitted Wiley's, and it looked like they had the plumbed the turbo side rocker to one outlet and the hose coming from the other outlet ran across the engine and somewhere under the nearside of the engine - I didn't have a light so I could see where it terminated

I hear what you're saying Grant, but the way I understand it there's 2 independant feeds to the inlet, both of which have the potential to feed gunk back into the inlet system; the rocker breathers and the PCV. As I see it both of these need to be diverted from the inlet and the obvious place is the can.

As I said previously, I just vented the whole system to atmosphere on my V6 Cav. I also vented to atmosphere on my old crossflow fiesta. If the can is collecting the vapours, I'm not sure of the need to vent

This is why mine is still mounted in the garage
Old 19 April 2009, 08:45 PM
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got my new oil catch tank this weekend
just need to make a bracket
and find a hole to fit it
btw, it had to be large due to my oil requirements
know what i mean jon

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Old 19 April 2009, 08:50 PM
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lol how much was that can, must be a big saving over the 5 litre containers ??
Old 20 April 2009, 12:03 AM
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How To: Oil catch can install (cheap & nice) - IWSTI.com: Subaru WRX STI Forums
Old 20 April 2009, 04:30 AM
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im gonna stick some sponge in mine, and figure how to vent it myself i think lol
Old 20 April 2009, 05:16 AM
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Hi, I have been using this can for a while on my GC8 (track only) it was a great kit and came with all hoses, fittings, battery braket etc, the new model has 4 fitting, I vented mine to atmosphere (little K&N filter)
DIY Hyperflow Catch Can Install - Rexnet Subaru Forums I bought mine from TUSPEED over here in OZ.
Old 20 April 2009, 11:01 AM
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My friend has just fitted the Hyperflow one. Quality bit of kit, but not cheap. His has 4 fittings on. You can't really use the bottom two can you other than to vent, as there isn't any sponge filter, where as there is on the top two.
Old 21 April 2009, 02:53 PM
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Originally Posted by JonMc
But the 2 rocker cover breathers are already paired through the pipe on the front of the intercooler so connect that to one inlet, the PCV to the other, block off both inlet breathers and bob's you uncle
Right iv had a look and yes your right, these are paired and the outlet is under the RHS of the manifold, so thats gonna go to my catch can

Can i just block the PCV or whatever it is? or does my crankcase need to breathe? if it needs to breathe i can just VTA right? and also VTA my catch can.
Old 21 April 2009, 03:01 PM
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I did mine by....
Pluging off the PCV, then using a tpiece put the rocker breathers (already paired) into the T piece along with the crank breather. Then that pipe into the catch tank and on the other side of the tank have a hose with a little filter.
Old 22 April 2009, 06:09 PM
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Thanks guys for your help all fitted now and been to see Paul at Zen and got the thumbs up will post pic on here asap
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