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Found a bit of oil in my passenger side inlet (not much) and was wondering if anyone knows if we have a built in catch can of some sort? If so location and how is it changed out?
I have a 2017 991.2
TKS
There are two oil separation devices on the 991.2 Carrera. They work well most of the time, but not perfectly all of the time. We have extensive experience with designing performance turbo Air Oil Separation systems and have a unit in testing. We have ~6 months of testing so far in various conditions, applications and temperatures. We are on the cusp of sending out units to beta testers, as our alpha testing is complete. More info coming, soon, but based on our testing so far it will eliminate oil accumulations in the turbo inlet tubes, as well as eliminate all the other downsides with oil vapor in the intake tract: reduced fuel octane, reduced intercooler efficiency, liquid accumulation in the intake tract, etc..
Awesome news, I actually purchased your headers for my upgraded turbo 991.2 that have worked Great so far. At this time I'm trying to determine if one of my turbos is possibly going bad or maybe pushing 27psi may be causing more than normal oil accumulation than the separator can handle..
Blow-by is a natural byproduct of combustion. You're GOING to have it to some extent. If it's excessive then there is an engine health issue. These engines are pretty robust, so hopefully that is not the issue. With normal levels of blow-by you will find some oil accumulation in the intake tract. If you're discovering puddles in the intake tract and light blue tinted smoke then it's excessive and likely to be an engine health related. It could also be an improperly functioning factory AOS as well, but those will generally have a mechanical failure that manifests itself as an engine leak typically.
What our product does is further separate the oil vapors from the blow-by gasses to a level where it will not accumulate in the intake tract and turbo inlet tubes.
Let me know if you have anymore questions, and thanks for the kind words and using our headers
There are two oil separation devices on the 991.2 Carrera. They work well most of the time, but not perfectly all of the time. We have extensive experience with designing performance turbo Air Oil Separation systems and have a unit in testing. We have ~6 months of testing so far in various conditions, applications and temperatures. We are on the cusp of sending out units to beta testers, as our alpha testing is complete. More info coming, soon, but based on our testing so far it will eliminate oil accumulations in the turbo inlet tubes, as well as eliminate all the other downsides with oil vapor in the intake tract: reduced fuel octane, reduced intercooler efficiency, liquid accumulation in the intake tract, etc..
@VektorPerformance 991.2 Carrera with GTS turbos / ecu upgrade / sport cats 200 / headers - not really driving on track: would it be enough to install only 1 of your new AOS on the passenger side turbo inlet? It is the one usually more affected.
Was released a while back. There are a couple threads floating around with product info and reviews. Here's a pic showing how it installs on the passenger side turbo inlet if you haven't seen in already...
Originally Posted by Lucas1
@VektorPerformance 991.2 Carrera with GTS turbos / ecu upgrade / sport cats 200 / headers - not really driving on track: would it be enough to install only 1 of your new AOS on the passenger side turbo inlet? It is the one usually more affected.
The driver side turbo inlet does not have crankcase venting provisions, only the passenger side. So if you pull the driver side inlet, it's clean. It's the passenger side that pollutes the intake tract
If you look at the top pic I posted you can see how the AOS connects to the turbo inlet. The other port connects to the PCV line that used to go directly to the turbo inlet.
Yes, we typically recommend at each oil change or after track days. The interval will depend on the type of vehicle usage. You can see some pictures of how much oil has been collected by numerous users in this thread: https://rennlist.com/forums/991/1222...separator.html
10-13-2019, 06:04 PM
991.2 Built in Catch Can?
