I just stupidly bumped a thread in another section, 944 or something by accident to ask this question. I'm too tired from the week to search coherently and there are too many threads referencing catch cans to choose from so I'm just starting a new thread. Mod can merge if they want.

What's the best solution for a guy that's not DIY? I just want to give my Indy an easy to install and easy to drain, check each oil change kinda thing. What's the easy peasy bestest option in 2018? Thanks in advance.

 

There is a great write-up here: Cayenne 957 - Catch Can Install Doc V4
I'll leave the choice of brand up to others. There are many to choose from, at all different price points.

Cheers,
TomF

 

Wonder if the 957 process is similar enough to 955.

 

99.99% the same

 

I'm going to install a Mishimoto brand one in my 957 Turbo S. Already have it in the garage - just need the car back from the widebody conversion.

 

^^+1^^ the Mishimoto can seems like a really well-engineered piece.

Cheers,
TomF

 

I did the 034 motorsports can as it was reasonably priced and had the 1" inlet/outlets you want. I did stuff some stainless steel brillo pad material into the can to give the oil something more to condense on.

 

 

Bosty - which can collects the most oil?

 

No way the one-way check valve be replaced with a small CC?

 

On a non-turbo 957 with the 4.8l DFI V8, could one simply install a catch can inline on the top hose that links the passenger air/oil separator to the intake manifold?
It seems like a fairly easy install (compared to the turbo plumbing).
Here is the line i am referring to:

(I found this pic on youtube, my engine is not that dirty:-)

 

Yes.

I have edited this post because I did not take the time to read properly. Captain was clear that his was not a turbo. I am not particularly familiar with the non-turbo plumbing but if this is the only location that the non-turbo ingests CC gasses, this would be correct.

 

Hi, Can someone clarify the connections for me in Bosty's photographs?
I believe the catch can connections are "in" on top and "out" on the side.
I understand the piping of the front catch can - vapour comes out of AOS, moves through the check valve and down the vent pipe toward the intercooler and turbo piping.
In that case catch can "in" would connect to the check valve lower connection and catch can "out" further down on the vent line pipe.

The back catch can (the one closer to the bulkhead) is the one I need clarification on.
Is the vapour moving from the AOS through the check valve and back into the intake manifold to be burnt in the engine? This seems to be the case based on the plumbing I see in the pictures.

In that case catch can "in" would connect to the check valve and catch can "out" to the inlet manifold. - This seems to be what I see in the photos.

Can someone confirm that this is correct - I have 2 mishimoto cans I want to connect - but I don't want to put them in back to front.
Can anyone point to an article on how the check valve works so I can get this clear in my head?

Thanks in advance.

 

The check valve is actually two check valves opposing each other. When the intake manifold, post throttle body, is under pressure the check valve(s) permit gasses from the AOS to go to the drivers intake turbo only. When the intake manifold is in vacuum, The check valve(s) permit the gasses from the AOS to go to the Intake manifold post throttle body only. There is somewhat of a changeover phase in there but you shouldn't worry about that. Most CC's work in one direction only. This may be specific to your particular can. On my Radium can, the top is in and the side is out. I do not have a second can for the case of Vacuum as the majority of blow by will be while in boost.

 

Very curious as to how much oil the post throttle body can collects as well Bosty.