Must read!! oil catch cans and AOS's!!!! - Subaru WRX Forum
 
LinkBack Thread Tools Display Modes
post #1 of 8 Old 05-27-2010, 12:15 AM Thread Starter
WRXtuners Member
 
synolimit's Avatar
 
Join Date: Aug 2009
Location: Ohio
Posts: 1,415
synolimit is a helpful contributing member
Must read!! oil catch cans and AOS's!!!!

So I have 13k miles on my car. I had my crank case catch can on for almost a month and look what I got! Now 90% of this is water and the rest is oil gunk, but itís a lot and my motor is thanking me for not letting it get down into the motor!! My advice is no matter what parts your running, a catch can for the crank case and valve cover vents I believe is a must!! If all this is just from the CC, imagine double is coming from both of your valve covers getting into your motor!

Well tonight I pulled all the VC hoses off and there was oil and stuff in them too. So I got more hose and now venting the CC and VC together to my catch can. Like I said before I only have 13k miles on my car, I DO NOT drive in boost all the time or drive hard on the street. I just get up and go from point A to point B like a normal person. Sometimes on the highway here and there, but the point is if im getting this much, then you are probably getting worse!! Your motor isnít gonna like you with so much oil and water getting down into it.

On a side note!!!! You may not get as much if you do a catch can from your CC. WHY? I have a blow though set up so I took off my PCV valve. Your stock system runs a hose from your CC to a T. The T then runs to your PCV, then to your intake manifold. The other side of the T runs to your inlet. My set up is running 100% CC crap to my catch can while other people are only running 50% (the other 50% is going to their PCV valve where it is then running to their intake manifold and into there motor=bad!!). I think everyone should look into a catch can or AOS separator no matter what your set up may be!!




Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
synolimit is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 05-27-2010, 12:30 AM
WRXtuners Member
 
Join Date: Sep 2009
Location: Michigan
Posts: 2,158
RcrsWetDream is known to be trustworthy and helpful RcrsWetDream is known to be trustworthy and helpful
Agreed..... Low priority on my list but still something I need to do... Probably go with the grimmspeed aos since I'll need to run 2 or 3 catch cans for the same result... I just want to do my research on the aos to make sure it's not dropping water into the oil before I go that route.

-Chris
RcrsWetDream is offline  
post #3 of 8 Old 05-27-2010, 06:54 AM
WRXtuners Member
 
Join Date: Jun 2007
Location: Texas
Posts: 4,979
pzr2874 is known to be trustworthy and helpful pzr2874 is known to be trustworthy and helpful
Chris, look at IXIZ Concept's AOS.... Ming did a great job on his.

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
pzr2874 is offline  
post #4 of 8 Old 05-27-2010, 02:22 PM
WRXtuners Member
 
Join Date: May 2006
Location: California
Posts: 996
WReXd is known to be trustworthy and helpful WReXd is known to be trustworthy and helpful WReXd is known to be trustworthy and helpful
Take a look at the SGMotorsports AOS, same style as Grimmspeed and Prova. There's a group buy going on for it right now.
WReXd is offline  
post #5 of 8 Old 05-27-2010, 02:47 PM
WRXtuners Member
 
fuapiti's Avatar
 
Join Date: Jul 2004
Location: Florida
Posts: 462
Images: 3
fuapiti is more helpful than not
Can you post a picture of your engine bay to see where you t-ed off to install your OCC?
fuapiti is offline  
post #6 of 8 Old 10-17-2012, 08:31 PM
WRXtuners Member
 
Join Date: Oct 2011
Location: Wisconsin
Posts: 65
Zaridar is an unknown
letting ambient air get into your crankcase (via crank vents) will probably increase the amount of moisture in there...
Zaridar is offline  
post #7 of 8 Old 10-17-2012, 09:19 PM Thread Starter
WRXtuners Member
 
synolimit's Avatar
 
Join Date: Aug 2009
Location: Ohio
Posts: 1,415
synolimit is a helpful contributing member
with the engine running the pressure should be positive if only slightly (at idle) so air getting in isnt a problem. this is confirmed by oil analysis showing perfect numbers (no high water levels, in fact showing 0.0 h2o).

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
synolimit is offline  
post #8 of 8 Old 04-17-2013, 09:29 AM
WRXtuners Member
 
Join Date: Apr 2013
Location: Wisconsin
Posts: 4
thelastleg05 is an unknown
^^^^^^
Hey I just want to say thanks for your great catch can post and info. It has helped me greatly with deciding what to do. I already have bought most of the parts to make my own (copyed yours). Just need stainless steel wool, and did you reduce the 3/4 CC nipple to 1/2 before it entered your can?? I just could not find that info but read the whole 16ish pages. (I was glued to that thread, the GF was not pleased with me haha)
Good Info!!
thelastleg05 is offline  
Sponsored Links
Advertisement
 
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome