Im currently looking in to doing this so would be very interested to see what people have done too as the catch tank i have has NO instructions at all
Damn.... Rob that engine is pure sex...great taste...I would deffo be interested in a catch tank as well. Anodized red for me
Rob just wondering where did you get the black engine cooler luiquid holder and the braided hoses as they look simply fantastic
You can get braided hoses from a fittings store carrying Goodridge. Or from Demon Tweeks etc.
I believe the cooler tank is a black painted Forge piece.
Thanks for that, it was useful...sorry that biza boy batterd on u m8.
Anyway I think that removing the PCV is probably not a good Idea might as well keep it and connect the vac end to the tip so that everything has a 'natural flow' if you get what I mean. I personally would T the two to one hole and then the other to the TIP.
I can't see why AUDI would put a PCV there if it wasn't neccessary that way u have the oil catch and the PCV even if it removes less as one of the biza boys pointed out.
Anyway I think that removing the PCV is probably not a good Idea might as well keep it and connect the vac end to the tip so that everything has a 'natural flow' if you get what I mean. I personally would T the two to one hole and then the other to the TIP.
I can't see why AUDI would put a PCV there if it wasn't neccessary that way u have the oil catch and the PCV even if it removes less as one of the biza boys pointed out.
My dear V-G think I found our holy grail, easy and it makes sense too!
http://forums.vwvortex.com/zerothread?id=3248273
http://forums.vwvortex.com/zerothread?id=3248273
Thanks for the sympathy, mate.
This has been my way of thinking too. I've asked around a lot regarding this and the PCV system. There's a couple of theories. I like the one with keeping the PCV and use a baffled catch tank. I'm un-fitting my Helix can and trying to get my hands on a baffled one, preferably a Saikou Michi.
Are baffled ones better? I've seen the one that Robdon has and it seems good but not exactly pretty...hmm anyway as I said I have researched this and it seems that the PCV can be placed on the vac hole and from there to the TIP as it was originally...Downloaded a subaru WRX installation guide and it too has three hoses and the PCV they do re-use this by the way.
Yeah, I've seen that thread and a lot of other treads on 1.8T forums. Problem is, you don't know if that's the right way to do it, even if it says so. I would like to know everything before I start removing things, like the PCV.
I've a couple more threads.
This and this. In the last one, scroll down to here. Clear pics of routing. Two wrong and two right.
You would be more sure of the oil staying in the can with a baffled one. I think it's pretty enough.
Here I go again. What part do you call PCV? The PCV is a system, consisting of, among others, a valve, I often see it called PCV valve.
By the way, I've problems understanding the trustworthiness of this pic.
What IS that? Mine sure don't look like that!
What IS that? Mine sure don't look like that!
Sorry, that wasn't a question, I know what I see. My point is, what's wrong, he can't seriously have that stuff lying around in that hose if everything is right?
And there you used the PCV acronym again. (See my post before that last one.)
Well no and yes from what I read in many companies websites that crap you see in those pipes is from years of use. With an Oil catch tank you can help maintain your engine longer by a)No oil in combustion chamber
b)No crap in the oil going to the combustion chamber
c) No crap in your intercooler(s)
b)No crap in the oil going to the combustion chamber
c) No crap in your intercooler(s)
here you are:
"PCV System (cruise and idle)
Lets start with this one first as this is the most confused part of the engine venting systems. PCV stands for Positive Crankcase Ventilation. 100% of new cars have this type of system, and is used for keeping the EPA happy, by recycling the crank case blow-by (oil and combustion gases) back into the combustion chamber.
The PCV is a one-way valve that under intake manifold vacuum (during idle and cruise) opens, and allows air to flow through the valve. One end is connected to the intake manifold and the other is connected to the crankcase, (or valve covers on some cars). When the valve opens the manifold is sucking out the crank case blow-by. Many people think there is a lot of vacuum being applied to the block. This is not the case! This isn’t true because of the other vents on the engine. Think of the PCV as creating airflow.
There is information out there about how the PCV vacuum helps seal the rings for more/better compression. This is also not true. The PCV valve creates air flow through the block to help evacuate the blow-by. If you put a gauge on the block you will see nothing! NO VACUUM! This is a huge myth people continue to believe in. Hopefully this article can clear this up.
On the Subaru, the older WRX’s have the PCV valve screwed into the intake manifold. A hose connects this to the crank case vent junction connector. The newer cars like the STI have the PCV as part of this crank case vent junction connector. This crankcase vent junction connector joins the PCV (on either car) to the crankcase, and to another vent hose going to the turbo intake. This is another are of confusion with the WRX.
This vent hose going from the crank case junction connector to the inlet hose is another path the PCV sucks air in from. Because this is connected to the turbo inlet hose, this allows the PCV (under idle and cruise conditions) suck in fresh air, along with the crank case blow by. Under these cruise and idle conditions, the PCV sucks air from this hose, and the block through the valve cover vent hoses.
These valve cover vent hoses on both sides of the engine serve another purpose under idle and cruise conditions. Since the PCV is sucking in air from the inlet hose and the block, the air in the block is being sucked through the valve cover vents. The valve cover vents are again attached to the turbo inlet hose. So both the valve cover vents, and crank case vent are sucking in fresh air from the turbo inlet hose, of course behind the MAF sensor.
Since there are 2 pathways for the PCV to suck from on the crankcase junction connector, it will suck from the path of least resistance. At times this might be the block side, when the engine is at high RPM and no boost, when there is more blow by coming from the block. Other times it might be the shorter crankcase vent hose going to the inlet hose, when there is not much blow by.
This re-burning of the blow-by (oil and combustion gases) isn’t bad, except that it can build up carbon and deposits on the intake valves, pistons, and exhaust valves. This build up can lead to poor valve seal, compression loss, valve seat damage…… Nothing good except that you are recycling something that shouldn’t be emitted to the atmosphere.
So to recap, under idle and cruise the PCV, is sucking on the crankcase junction connector. Form the junction connector; air is being sucked through 2 things. One is the crankcase vent hose, which is attached to the turbo inlet. Two is the block, which is sucking in air from the valve cover vents, which are attached to the turbo inlet hose. The 3 main vents are getting air sucked in through them. All the system is doing is sucking in fresh air through the block and evacuating the blow-by (oil and combustion gases) into the intake manifold. Which in turn gets re-burned for cleaner emissions. You can see evidence of this if you open the throttle body and look in the manifold. You will find the oily mess. You will also find this oily mess in the intercooler, but this is from another function of the system…"
"PCV System (cruise and idle)
Lets start with this one first as this is the most confused part of the engine venting systems. PCV stands for Positive Crankcase Ventilation. 100% of new cars have this type of system, and is used for keeping the EPA happy, by recycling the crank case blow-by (oil and combustion gases) back into the combustion chamber.
The PCV is a one-way valve that under intake manifold vacuum (during idle and cruise) opens, and allows air to flow through the valve. One end is connected to the intake manifold and the other is connected to the crankcase, (or valve covers on some cars). When the valve opens the manifold is sucking out the crank case blow-by. Many people think there is a lot of vacuum being applied to the block. This is not the case! This isn’t true because of the other vents on the engine. Think of the PCV as creating airflow.
There is information out there about how the PCV vacuum helps seal the rings for more/better compression. This is also not true. The PCV valve creates air flow through the block to help evacuate the blow-by. If you put a gauge on the block you will see nothing! NO VACUUM! This is a huge myth people continue to believe in. Hopefully this article can clear this up.
On the Subaru, the older WRX’s have the PCV valve screwed into the intake manifold. A hose connects this to the crank case vent junction connector. The newer cars like the STI have the PCV as part of this crank case vent junction connector. This crankcase vent junction connector joins the PCV (on either car) to the crankcase, and to another vent hose going to the turbo intake. This is another are of confusion with the WRX.
This vent hose going from the crank case junction connector to the inlet hose is another path the PCV sucks air in from. Because this is connected to the turbo inlet hose, this allows the PCV (under idle and cruise conditions) suck in fresh air, along with the crank case blow by. Under these cruise and idle conditions, the PCV sucks air from this hose, and the block through the valve cover vent hoses.
These valve cover vent hoses on both sides of the engine serve another purpose under idle and cruise conditions. Since the PCV is sucking in air from the inlet hose and the block, the air in the block is being sucked through the valve cover vents. The valve cover vents are again attached to the turbo inlet hose. So both the valve cover vents, and crank case vent are sucking in fresh air from the turbo inlet hose, of course behind the MAF sensor.
Since there are 2 pathways for the PCV to suck from on the crankcase junction connector, it will suck from the path of least resistance. At times this might be the block side, when the engine is at high RPM and no boost, when there is more blow by coming from the block. Other times it might be the shorter crankcase vent hose going to the inlet hose, when there is not much blow by.
This re-burning of the blow-by (oil and combustion gases) isn’t bad, except that it can build up carbon and deposits on the intake valves, pistons, and exhaust valves. This build up can lead to poor valve seal, compression loss, valve seat damage…… Nothing good except that you are recycling something that shouldn’t be emitted to the atmosphere.
So to recap, under idle and cruise the PCV, is sucking on the crankcase junction connector. Form the junction connector; air is being sucked through 2 things. One is the crankcase vent hose, which is attached to the turbo inlet. Two is the block, which is sucking in air from the valve cover vents, which are attached to the turbo inlet hose. The 3 main vents are getting air sucked in through them. All the system is doing is sucking in fresh air through the block and evacuating the blow-by (oil and combustion gases) into the intake manifold. Which in turn gets re-burned for cleaner emissions. You can see evidence of this if you open the throttle body and look in the manifold. You will find the oily mess. You will also find this oily mess in the intercooler, but this is from another function of the system…"
You're talking about this PRV. That's not what they call the PCV valve in the previous mentioned Ibiza thread.
This is:
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