Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat

Post Reply
 
LinkBack Thread Tools Display Modes
Old 04-14-2016, 06:26 AM   #1
Registered User
 
kk2002s's Avatar
 
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
Garage
AOS Catch Can

Watched MotorWeek this week and there was a segment on installing AOS catch cans.
I see Moroso has a Universal version.
I'm wondering if this could be installed on a 986 between AOS and TB?
Would there be any real benefits?
Could it help if an AOS goes bad preventing the Intake from getting flooded with oil?
I know there are some DIYs on here related

Catch Can/Oil Separator | MotorWeek

They also did a review of the Cayman GT4

__________________
2002 S - old school third pedal
Seal Grey
kk2002s is offline   Reply With Quote
Old 04-14-2016, 06:56 AM   #2
Registered User
 
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,453
Did you understand how an AOS works?

Regards, Markus
Smallblock454 is offline   Reply With Quote
Old 04-14-2016, 07:06 AM   #3
Registered User
 
kk2002s's Avatar
 
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
Garage
Quote:
Originally Posted by Smallblock454 View Post
Did you understand how an AOS works?
I have a general understanding.
My thought was rather then just directly feeding the AOS into the TB, the catch can adds another layer to keeping oil mist out of the intake

I would be concerned this intermediate devise might hurt the operation of the AOS in general
__________________
2002 S - old school third pedal
Seal Grey

Last edited by kk2002s; 04-14-2016 at 07:10 AM.
kk2002s is offline   Reply With Quote
Old 04-14-2016, 09:00 AM   #4
Rennzenn
 
j.fro's Avatar
 
Join Date: Feb 2005
Location: Virginia
Posts: 1,369
Garage
This is exactly what I've been running on my car for 40K & 5 years and it does work. I know, I know, the purists are shaking their heads and calling me a blasphemer. I wouldn't do this to any car that mattered (including my 996). But my 986 is a racecar & test mule, and no one else ever will ever have to work on this car until I'm dead. If you are in the same boat, go for it. Otherwise, stick with the factory stuff.

__________________
Rennzenn
Jfro@rennzenn.com
j.fro is offline   Reply With Quote
Old 04-14-2016, 12:21 PM   #5
Registered User
 
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,453
Quote:
Originally Posted by kk2002s View Post
I have a general understanding.
My thought was rather then just directly feeding the AOS into the TB, the catch can adds another layer to keeping oil mist out of the intake

I would be concerned this intermediate devise might hurt the operation of the AOS in general
Hi,

the catch can showed in the video is a kind of an AOS, but it works different.

The 986 doesn't have DFI nor does it have low friction piston rings.

If you track the car, you can think of a smart solution like j.fro did. But if you don't track the car and if your AOS is working properly, i think there is no need for an additional catch can.

Also please consider that the line between the TB and the AOS is a negative pressure line. So the solution has to be 100% leakproof. Also the catch can system is not allowed to influence the negative pressure value. That will lead to engine problems.

And the catch can should be servicable easy - which isn't that easy to implement, because of the available space.

As a summary: check you AOS regularly and clean the TB maybe every 60 K miles and everything will be fine.

Regards, Markus
Smallblock454 is offline   Reply With Quote
Old 04-14-2016, 02:13 PM   #6
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,261
Quote:
Originally Posted by Smallblock454 View Post
The 986 doesn't have DFI nor does it have low friction piston rings.
Both the M96 and M97 engines run extremely low tension piston rings.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 04-14-2016, 07:47 PM   #7
Registered User
 
Join Date: May 2014
Location: S.California
Posts: 2,027
KK
A fellow contributor, "Stelan" has fitted an alternative to the AOS to his car. You might invite him to comment?

Gelbster is offline   Reply With Quote
Post Reply


Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 01:05 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page