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Old 02-25-2013, 02:31 AM   #101
SubieEngineer
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^ Do you not have the AOS plumbed back into the inlet? Or is this temporary to monitor blow-by...?

I, too have the ETS TMIC and the Crawford, but with a custom bracket made by the shop that built my motor. No clearance issues, but no FSTB, either.
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Old 02-25-2013, 09:31 AM   #102
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Quote:
Originally Posted by SubieEngineer View Post
^ Do you not have the AOS plumbed back into the inlet? Or is this temporary to monitor blow-by...?

I, too have the ETS TMIC and the Crawford, but with a custom bracket made by the shop that built my motor. No clearance issues, but no FSTB, either.
Good catch. This pic was of my old motor, and I was simply monitoring blow-by that got past the AOS temporarily. Driving this kind of configuration on the street would be impossible for me as it absolutely smells awful. (Very strong oil vapor fumes)

I'm also ruining an AMR Inlet now too.
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Old 02-25-2013, 01:37 PM   #103
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Quote:
Originally Posted by Acejam2k View Post
Good catch. This pic was of my old motor, and I was simply monitoring blow-by that got past the AOS temporarily. Driving this kind of configuration on the street would be impossible for me as it absolutely smells awful. (Very strong oil vapor fumes)
i have an 08 wrx with the crawford v2 FMIC version installed at the dog-bone, with the cusco front bar and the vent line to the right fender with air filter. no fitment issues or rubbing. there's definitely ways to get it done with just a bit of effort.

i also never have the "very strong oil vapor fumes". this is on a high-hp setup but perhaps adding that filter at the end would help you if you have a desire for that design setup/eliminating the opportunity for blow-by to enter the intact tract.
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Old 02-25-2013, 01:45 PM   #104
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Originally Posted by monkiboy View Post

i have an 08 wrx with the crawford v2 FMIC version installed at the dog-bone, with the cusco front bar and the vent line to the right fender with air filter. no fitment issues or rubbing. there's definitely ways to get it done with just a bit of effort.

i also never have the "very strong oil vapor fumes". this is on a high-hp setup but perhaps adding that filter at the end would help you if you have a desire for that design setup/eliminating the opportunity for blow-by to enter the intact tract.
Stick that hose in your engine bay like I did with no filter and I guarantee you'll smell it at idle. The fender liners will vent the air reasonably well to the sides of the car, hence the lack of smell. I only ran this temporarily because I wanted to see if anything was getting past the AOS. Nothing did - my bottle was clear with just a tiny bit of water vapor. (It was cold out)
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Old 02-25-2013, 01:54 PM   #105
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Originally Posted by Acejam2k View Post
Stick that hose in your engine bay like I did with no filter and I guarantee you'll smell it at idle. The fender liners will vent the air reasonably well to the sides of the car, hence the lack of smell. I only ran this temporarily because I wanted to see if anything was getting past the AOS. Nothing did - my bottle was clear with just a tiny bit of water vapor. (It was cold out)
Yea, the smell of the crankcase when at a stop is nasty! Glad to hear the results from your test were good

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Old 02-25-2013, 03:36 PM   #106
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Mine finally showed up in the mail today and will be getting installed in a few weeks when I am ripping into my engine bay again. I bought the tmic aplication for 02-07 sti's and am looking forward to installing it along side of my rotated 3076 and spearco top mount. I will update with photo's.

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Old 02-25-2013, 03:41 PM   #107
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Originally Posted by Acejam2k View Post
Stick that hose in your engine bay like I did with no filter and I guarantee you'll smell it at idle. The fender liners will vent the air reasonably well to the sides of the car, hence the lack of smell. I only ran this temporarily because I wanted to see if anything was getting past the AOS. Nothing did - my bottle was clear with just a tiny bit of water vapor. (It was cold out)
i think you misunderstood because i did not specify clear enough. it does not sit IN the fender rather ON the fender in the engine bay. really mounted to the strut tower. i guess from your comments, the small filter at the end of my setup, really does allow me to avoid those noxious fumes. here's a photo of its location to further describe what i'm talking about.

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Old 02-25-2013, 05:40 PM   #108
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Quote:
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i think you misunderstood because i did not specify clear enough. it does not sit IN the fender rather ON the fender in the engine bay. really mounted to the strut tower. i guess from your comments, the small filter at the end of my setup, really does allow me to avoid those noxious fumes. here's a photo of its location to further describe what i'm talking about.

Maybe I'm not understanding the working of this completely, but wouldn't you need to have that top hose connected to the intake duct still and not just a filter? Is there enough crankcase pressure to move the air through this thing fast enough to separate the oil without the extra suction from the intake? Since it's suppose to use centrifugal force and all to separate the oil from the air. Also I was wondering if you keep the PCV valve or if the AOS causes any codes to be thrown?
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Old 02-26-2013, 07:45 PM   #109
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Quote:
Originally Posted by Acejam2k View Post
Good catch. This pic was of my old motor, and I was simply monitoring blow-by that got past the AOS temporarily. Driving this kind of configuration on the street would be impossible for me as it absolutely smells awful. (Very strong oil vapor fumes)

I'm also ruining an AMR Inlet now too.
Gotcha. I haven't logged into IWSTI much in the last month, been making some changes, non-car-related.

Quote:
Originally Posted by Acejam2k View Post
Stick that hose in your engine bay like I did with no filter and I guarantee you'll smell it at idle. The fender liners will vent the air reasonably well to the sides of the car, hence the lack of smell. I only ran this temporarily because I wanted to see if anything was getting past the AOS. Nothing did - my bottle was clear with just a tiny bit of water vapor. (It was cold out)
I get the oil vapor smell even with the clean air return plumbed back into the inlet. I can smell it if I'm standing behind the car at idle. After having the AOS installed for a few thousand miles, I took my ETS TMIC off to wire some gauges, and while it was 95% dry (save the slightest of shinyness at the bottom of the TB coupler area), it absolutely reeked of oil when I put my head within 1' of the outlet.
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Old 02-26-2013, 07:57 PM   #110
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Gotcha. I haven't logged into IWSTI much in the last month, been making some changes, non-car-related.

I get the oil vapor smell even with the clean air return plumbed back into the inlet. I can smell it if I'm standing behind the car at idle. After having the AOS installed for a few thousand miles, I took my ETS TMIC off to wire some gauges, and while it was 95% dry (save the slightest of shinyness at the bottom of the TB coupler area), it absolutely reeked of oil when I put my head within 1' of the outlet.
That makes sense - oil "vapor/air that smells like oil still makes its way through the motor and back into the inlet. If there's a strong smell though when the car is running, then you might have a leak.
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Old 02-26-2013, 08:06 PM   #111
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That makes sense - oil "vapor/air that smells like oil still makes its way through the motor and back into the inlet. If there's a strong smell though when the car is running, then you might have a leak.
Oil level is consistent when not pushing the car hard (like at a track day), so not sure where I'd have a leak. Can't smell anything under the hood while running, it's out the exhaust. I think I've read of others experiencing the oil vapor smell, I just need to read up on it a bit.
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Old 02-26-2013, 08:20 PM   #112
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If you are smelling it in the exhaust then you are burning oil in the combustion chamber which is exiting out the back of your car. This is common for a high mileage motor or one that is very loose for what ever reason. If the oil is going into your turbo faster than its draining out the bottom then that could cause the smell as well, this usually happens with rotated turbos that do not have a proper restrictor in the oil feed line.
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Old 02-27-2013, 01:08 AM   #113
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If you are smelling it in the exhaust then you are burning oil in the combustion chamber which is exiting out the back of your car. This is common for a high mileage motor or one that is very loose for what ever reason. If the oil is going into your turbo faster than its draining out the bottom then that could cause the smell as well, this usually happens with rotated turbos that do not have a proper restrictor in the oil feed line.
Gotcha. Yeah, I figure I'm burning some off slightly. It's a TopSpeed RR.5 motor with looser tolerances than stock, and they told me to expect some light consumption. I have yet to do a full interval without some type of autocross/track driving, so I haven't been able to get a good idea as to use. Turbo is a Blouch 1.5 XTR with a TMIC.
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Old 02-27-2013, 01:16 AM   #114
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Oil level is consistent when not pushing the car hard (like at a track day), so not sure where I'd have a leak. Can't smell anything under the hood while running, it's out the exhaust. I think I've read of others experiencing the oil vapor smell, I just need to read up on it a bit.
I didn't realize the leak you mentioned was from behind the car. By "leak" I meant one of the AOS lines in the engine bay being loose, causing a funky smell to seep into the cabin. (such as venting the top hose to atmosphere in my picture)

I also recently pulled my TMIC - it definitely smelled, but it was bone dry.
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Old 02-27-2013, 01:23 PM   #115
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Gotcha. Yeah, I figure I'm burning some off slightly. It's a TopSpeed RR.5 motor with looser tolerances than stock, and they told me to expect some light consumption. I have yet to do a full interval without some type of autocross/track driving, so I haven't been able to get a good idea as to use. Turbo is a Blouch 1.5 XTR with a TMIC.
There's your answer then... Rock on!

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Old 02-27-2013, 01:25 PM   #116
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Originally Posted by Acejam2k View Post
I didn't realize the leak you mentioned was from behind the car. By "leak" I meant one of the AOS lines in the engine bay being loose, causing a funky smell to seep into the cabin. (such as venting the top hose to atmosphere in my picture)

I also recently pulled my TMIC - it definitely smelled, but it was bone dry.
It's good to hear that our AOS is doing it's job! Thanks for the positive feedback.

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Old 02-27-2013, 10:27 PM   #117
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Quote:
Originally Posted by Acejam2k View Post
I didn't realize the leak you mentioned was from behind the car. By "leak" I meant one of the AOS lines in the engine bay being loose, causing a funky smell to seep into the cabin. (such as venting the top hose to atmosphere in my picture)

I also recently pulled my TMIC - it definitely smelled, but it was bone dry.
Yeah, coming out the exhaust. No leaks under the hood (that I'm aware of...).

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There's your answer then... Rock on!

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That's why I never worried about it. I expect some consumption with the looser tolerances, but just no idea how much since I haven't been able to really measure it. Just wasn't expecting the oil vapor odor out the back end. Thanks for the feedback!
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Old 02-28-2013, 12:04 AM   #118
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Yeah, coming out the exhaust. No leaks under the hood (that I'm aware of...).



That's why I never worried about it. I expect some consumption with the looser tolerances, but just no idea how much since I haven't been able to really measure it. Just wasn't expecting the oil vapor odor out the back end. Thanks for the feedback!
I hate to say it, but in my opinion if you can smell oil coming out of the tailpipe, something isn't right.
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Old 02-28-2013, 02:07 AM   #119
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I hate to say it, but in my opinion if you can smell oil coming out of the tailpipe, something isn't right.
Normally I'd agree with you, but I'm not burning any really noticeable amount of oil, and I've done 7 track days with this motor, using roughly 1/2-1 qt per day. Unless it starts creeping up to something excessive, I think I'm good. *crosses fingers and does a little dance*
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Old 03-21-2013, 09:13 AM   #120
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I am so glad I did not buy the grimspeed AOS for my new 18Gxt sti build. I think I will do catch can(s) instead.

Which is the very best catch can system people? or is there an AOS that actually works. Should I just get the crawford and call it good?
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Old 03-21-2013, 10:44 AM   #121
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I am so glad I did not buy the grimspeed AOS for my new 18Gxt sti build. I think I will do catch can(s) instead.

Which is the very best catch can system people? or is there an AOS that actually works. Should I just get the crawford and call it good?
It may be pricey, but the Crawford V2 AOS does work. I chose the Crawford on my setup so I don't have to worry about emptying catch cans.
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Old 03-21-2013, 11:07 AM   #122
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It may be pricey, but the Crawford V2 AOS does work. I chose the Crawford on my setup so I don't have to worry about emptying catch cans.
Thanks for the support Acejam2k... it's customers like you that have made us who we are today!

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Old 11-10-2013, 02:01 PM   #123
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Great write up! Thanks for your pics and reviews. I've been debating between exactly these two (along with the new Perrin AOS) as I too DD the car, but am leaning towards tracking a lot more.

This thread was super helpful.
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