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Old 11-18-2012, 05:43 PM   #1
ryblair
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Default Air/Oil separator

Hi all I'm currently running stage 2 set up on my 2011 wrx. Current power mods are
Turbo back turboxs exhaust
And Cobb sf intake

I am currently in the process of deciding what mods I want to add before protune. As of right now I want a
Dw65 265lph fuel pump
Pw TMIC
Grimmspeed ebcs

Now my question . . . Is an air/oil seperator worth getting. Also I anybody recommends another mod or replacing one of these mods with something else let me know. Thanks
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Last edited by ryblair; 11-18-2012 at 06:32 PM.
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Old 11-18-2012, 06:09 PM   #2
424wrx
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i think you mean an air oil seperator. i have a grimmspeed aos. it helped with oil in my intercooler issues.
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Old 11-18-2012, 06:11 PM   #3
ryblair
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Quote:
Originally Posted by 424wrx View Post
i think you mean an air oil seperator. i have a grimmspeed aos. it helped with oil in my intercooler issues.
That's exactly what I meant I was just about to change what I said lol. Thanks for the reply what issues were you having without it?
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Old 11-18-2012, 07:28 PM   #4
424wrx
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Quote:
Originally Posted by ryblair View Post
That's exactly what I meant I was just about to change what I said lol. Thanks for the reply what issues were you having without it?
i was getting blow by issues. my perrin tmic was geting alot of oil inside and making the lower tmic hose loose. it wasnt enough oil to need a top off between changes. its just not good to have too much oil in there cause it can lower the octane and cause detontation.
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Old 11-18-2012, 07:59 PM   #5
sense of nature
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Good stuff!
Our set ups whether stage 1 or 4 should have 1 installed IMO
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Old 11-18-2012, 08:14 PM   #6
ryblair
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Well thanks for the info guys looks like I will as it to my list. Any other mods I should possibly add? I don't think injectors are necessary until turbo upgrade am I right?
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Old 11-18-2012, 08:18 PM   #7
ERL2011wrx
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I've been debating on getting an air/oil separator myself. From what I've read the Crawford is the way to go but so far I haven't had any problems without one. I do drive the car pretty conservative.

Mods.. Invidia tbe, AEM intake, Forge bpv, Grimmspeed ebcs, Process West tmic, protune.
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Old 11-18-2012, 08:23 PM   #8
424wrx
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Quote:
Originally Posted by ERL2011wrx View Post
I've been debating on getting an air/oil separator myself. From what I've read the Crawford is the way to go but so far I haven't had any problems without one. I do drive the car pretty conservative.

Mods.. Invidia tbe, AEM intake, Forge bpv, Grimmspeed ebcs, Process West tmic, protune.
grimmspeed aos has been proven to be more than enough for most dd cars. tracked cars would be better with a crawford system.
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Old 11-18-2012, 08:23 PM   #9
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Quote:
Originally Posted by ryblair View Post
Well thanks for the info guys looks like I will as it to my list. Any other mods I should possibly add? I don't think injectors are necessary until turbo upgrade am I right?
It's all in what you want and your future plans. A fuel pump and injectors wouldn't be a bad idea but not "needed" if you never plan on running an E85 tune or upgrading the turbo. My IDC was at 95% with stock injectors on pump gas so it's pushing the limits. You could always do an EWG before the tune also.
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Old 11-18-2012, 08:47 PM   #10
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AOS's are fairly useless.
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Old 11-18-2012, 10:20 PM   #11
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Proof to said statement?
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Old 11-18-2012, 11:08 PM   #12
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Quote:
Originally Posted by HinshawWRX View Post
AOS's are fairly useless.
All catch cans?
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Old 11-19-2012, 12:05 AM   #13
ryblair
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Quote:
Originally Posted by ERL2011wrx View Post

It's all in what you want and your future plans. A fuel pump and injectors wouldn't be a bad idea but not "needed" if you never plan on running an E85 tune or upgrading the turbo. My IDC was at 95% with stock injectors on pump gas so it's pushing the limits. You could always do an EWG before the tune also.
Eventually I would like to upgrade the turbo but not now. Ewg seems like a great idea and I would like to do it but isn't it expensive? Last I check its like a 600 dollar mod and that's if you install it yourself. Correct me if I'm wrong. And also do you guys think m stock injectors would be fine until I do upgrade the turbo? I was planning on just the fuel pump for now as far as fuel mods go
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Old 11-19-2012, 06:48 AM   #14
424wrx
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Quote:
Originally Posted by HinshawWRX View Post
AOS's are fairly useless.
why are you a mod now? all you do is spurt out stuff like a mini unabomber. its getting old. proof about your statement??
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Old 11-19-2012, 08:20 AM   #15
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Proof is the MILLIONS of cars that have blow by (hint all of them in the past 40+ years) that not once needed an AOS or catch can. Blow by still happens. Blow by is not a horrible thing. Where is the evidence showing an AOS/Catch can has extended the life of a motor? I trust car engineers, if it was needed there would be one.
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Old 11-19-2012, 11:17 AM   #16
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Hinshaw, there is one built into your engine...it just isn't a very good one when you add power and mods. It's like saying you trust the engineers did a good job on the pistons and therefore will never have to worry about them.
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Old 11-19-2012, 11:36 AM   #17
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Quote:
Originally Posted by HinshawWRX View Post

AOS's are fairly useless.
This is what happens when WRX owners become Moderators...

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Old 11-19-2012, 01:55 PM   #18
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Quote:
Originally Posted by drewvdw
Hinshaw, there is one built into your engine...it just isn't a very good one when you add power and mods. It's like saying you trust the engineers did a good job on the pistons and therefore will never have to worry about them.
This^^^^^
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Old 11-19-2012, 02:17 PM   #19
HinshawWRX
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Originally Posted by drewvdw View Post
Hinshaw, there is one built into your engine...it just isn't a very good one when you add power and mods. It's like saying you trust the engineers did a good job on the pistons and therefore will never have to worry about them.
One can argue they used the "weaker" pistons for cost saving measures. But let's not go into ringland issues.

Quote:
Originally Posted by WRXLTD View Post
This is what happens when WRX owners become Moderators...

I've always been against AOS's. And as much as most people like to say it, my opinions have stayed the same since becoming a MOD, and being one has nothing to do with them.

Simple fact is, one can be MADE for cheaper then bought, and the money can be used for better needs.
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Old 11-19-2012, 05:35 PM   #20
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Quote:
Originally Posted by HinshawWRX View Post
Simple fact is, one can be MADE for cheaper then bought, and the money can be used for better needs.
well that sucks.. just bought the GS AOS.. how can i make one lol
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Old 11-19-2012, 08:51 PM   #21
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Originally Posted by pippen

well that sucks.. just bought the GS AOS.. how can i make one lol
Do a quick google search for the $20 catch can. May not be what your looking for but they work lol
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Old 11-19-2012, 11:22 PM   #22
ryblair
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Quote:
Originally Posted by ERL2011wrx View Post
I've been debating on getting an air/oil separator myself. From what I've read the Crawford is the way to go but so far I haven't had any problems without one. I do drive the car pretty conservative.

Mods.. Invidia tbe, AEM intake, Forge bpv, Grimmspeed ebcs, Process West tmic, protune.
You have almost the exact setup im working towards, how dramatic were the gaine from the tmic and grimmspeed ebcs with a protune, those are my next steps.

And as far as the aos goes i dont know what to do about it know. Im starting to think ill do that down the road. I had just read somewhere that it was a good safe mod when running 91 oct. Thats all i can get here in nevada it sucks. and no e85 here. My friends evo is now running on meth at 430whp its insane. The meth made a huge difference besides having to refill it all that time haha. Once again thanks for the replies guys much appreciated. I may just call a well known tuner i may go to. . . if i can find one in slc or reno and ask what he thinks.
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Old 11-20-2012, 01:03 PM   #23
ERL2011wrx
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Quote:
Originally Posted by ryblair View Post

You have almost the exact setup im working towards, how dramatic were the gaine from the tmic and grimmspeed ebcs with a protune, those are my next steps.
It was a nice gain in power. Not a lot on top end but huge gains in the midrange. The car is smooth and very fun to drive now. Every car and dyno is a bit different but I ended up with 315whp/342wtq @ 20.5psi on 93 octane. I can PM you the graph if you want to check it out.
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Old 11-20-2012, 01:12 PM   #24
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Originally Posted by guygettnby View Post

Do a quick google search for the $20 catch can. May not be what your looking for but they work lol
I running a GS AOS because I don't want to be emptying a catch can all the time.
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Old 11-20-2012, 01:14 PM   #25
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Quote:
Originally Posted by ryblair View Post
You have almost the exact setup im working towards, how dramatic were the gaine from the tmic and grimmspeed ebcs with a protune, those are my next steps.
The GS EBCS is my favorite mod so far.. the thing works magic. Definitely worth the $100 or whatever it is.
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