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Old 01-26-2013, 11:13 PM   #1
m1r4g3
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Default Perrin Air Oil Seperator Install/Review

I have been fortunate enough to acquire a new Perrin Air Oil Seperator. Install was a breeze. This install is for a 2006 STi. Keep in mind that this is how i have routed and there are different ways to do it based on taste. I also installed it when i swapped tgv's so it was a bit easier to reach some things.


Here it is




First thing you do is assemble it according to the above diagram. the only difference is that I swapped the crankcase vent and the right valve cover vent. One thing to note is that the two coolant fittings are the ones that are closest together.






If you need to adjust the location of the fittings, there is a allen bolt on the bottom. just loosen it and rotate the lower assembly.






Next, find a mounting solution that is right for you. I picked the passenger strut tower. If you have a fmic, the pitch stop bolt is a good spot too.




Remove the intercooler and metal pipes. This gives you all the room you need to route the lines and reach the crankcase vent.Now you remove the current crankcase vent hose and leave the small 2 inch hose at the port. Assemble and attatch the crankcase fitting and oil return fitting to this hose. Be sure to have the oil return fitting turned in the direction of the picture.



Measure and cut appropiate lengths of hose and route them how you want.



Follow one of the hoses(one of the hoses that came off of the metal tubes that were attatched to your intercooler) to the valve cover. Remove and replace with appropiate length hose that will reach your aos.

Passenger Side





Drivers side, i have found that ziptieing the line to the firewall was the best way to route it.




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Old 01-26-2013, 11:14 PM   #2
m1r4g3
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Remove the throttle body and locate the pcv hose. Remove it and install enough hose to reach the intake. Install the one way valve that connects the pcv hose to the aos outlet hose. (mine doesnt have it because it is in the mail)




Reinstall throttle body.

On the throttle body is two coolant lines (in/out) It doesnt matter which one but unhook one, connect the straight connection and run it to one of the coolant fittings.




Run a hose from the other coolant fitting to the nipple where you unhooked the oem coolant line. Now everything is installed.




Reinstall intercooler and enjoy.




REVIEW:

Awesome quality that is expected of Perrin. There isnt a set price so stay tuned Install wasn't difficult. I would suggest a turbo heat shield with this because where I mounted it, would get really hot/maybe melt some hose. I will be back in a month or so to see if it actually worked. i have installed everything new after the turbo so i will be able to see any oil resudue.

Last edited by m1r4g3; 01-26-2013 at 11:50 PM.
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Old 01-27-2013, 02:09 AM   #3
murrdogg24
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are you sponsored by Perrrin???
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Old 01-27-2013, 03:48 AM   #4
m1r4g3
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Nope, i know a guy named Jeff.turns out he is really nice
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Old 01-28-2013, 12:35 PM   #5
knoxville1
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somebody loves perrin :/
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Old 01-28-2013, 04:11 PM   #6
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looks great! Can't wait for some real world reviews buy actual customers (not saying your review doesn't count!) perrin +1
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Old 01-28-2013, 07:35 PM   #7
m1r4g3
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^^^^ even though it doesn't look it, i am not biased and will be the first one to let people know if something is wrong with it

also I plan on running the 1/4 mile a couple of times and hopefully do a local auto x
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Old 01-29-2013, 11:03 AM   #8
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How much fall does the drain return line have? it looks like it sits way low.
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Old 01-29-2013, 12:34 PM   #9
m1r4g3
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We will see how much of an affect it has on drain. If it just pools in the line i will shift stiff around
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Old 02-11-2013, 11:51 AM   #10
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Any updates? I'm very ready to buy this thing.
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Old 02-17-2013, 06:24 PM   #11
m1r4g3
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small update, i revieved the valve for the pcv hose. here is how it installs. green is the valve and yellow is the y fitting.
and no oil in the inlet return hose



the only downside is that i wish the pieces were a neater install.
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Old 02-18-2013, 07:06 PM   #12
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awesome. I would say I cannot wait for this to come out but I doubt it is soon. they cant seem to even stock their shelves currently. been waiting over a month for a reverse lockout lever.
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Old 03-21-2013, 05:21 AM   #13
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Any updates with in last month?
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Old 05-03-2013, 10:27 AM   #14
henria86
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Bump Any Word??
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Old 05-03-2013, 06:14 PM   #15
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The air oil separator is ready for sale! They're not on our website yet, but you can order them over the phone. MSRP is $469.99.
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Old 05-03-2013, 09:10 PM   #16
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Are you going to have an initial group buy?
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Old 05-04-2013, 10:47 AM   #17
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Quote:
Originally Posted by PERRIN_Chris View Post
The air oil separator is ready for sale! They're not on our website yet, but you can order them over the phone. MSRP is $469.99.
Ouch.. gonna have to see this thing in action before I drop that kind of cash. On another note. Almost everything on my car is perrin. You guys should just give me one to review :P
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Old 05-06-2013, 11:10 AM   #18
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Quote:
Originally Posted by Purdue22 View Post
Are you going to have an initial group buy?
We probably aren't going to have a group buy on it, but if you give us a call to order it, we can give a discount for NASIOC members!
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Old 05-06-2013, 11:25 AM   #19
kenliu84
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Was the level of the drain outlet taken into account compared to reviews of the crawford aos when this was in development? I think this is key for TMIC equipped cars.
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Old 05-06-2013, 07:45 PM   #20
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Yes it was, it will have to be mounted above the crankcase vent, and not have any kinks in the lines to allow oil to be drained back into the engine. There's plenty of room in the engine compartment on the pass side even with the TMIC installed to mount this part.
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Old 05-07-2013, 08:44 PM   #21
Scuby04STi
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Ok so where to start, Its an AWESOME product.

First, would suggest the "pitch stop" mounting location.
Second, the genneral routing to the lines is good. I like the method not involving "Ting" the vents together.
Third, it's made by Perrin . . . What have they ever made that didn't work well?
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Old 06-16-2013, 06:39 PM   #22
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Quote:
Originally Posted by m1r4g3 View Post
small update, i revieved the valve for the pcv hose. here is how it installs. green is the valve and yellow is the y fitting.
and no oil in the inlet return hose , the only downside is that i wish the pieces were a neater install.
m1r4g3 , Can you tell me if you are using the PCV valve and where was this line connected to? I think your yellow line one goes to the top of the AOS but just confused on where the other one goes to. Thanks!

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Old 06-21-2013, 11:46 PM   #23
m1r4g3
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you install enough hose on the circled area to reach the intake which is also the green hose in the previous pic
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Old 07-01-2013, 07:55 PM   #24
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Thanks for the reply. Sorry to ask such newbie questions. Looks like you retain your PCV valve (line extended to intake) but then there is a one-way check valve in the system also?
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Old 07-04-2013, 11:06 PM   #25
m1r4g3
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redundancy, i just did what jeff told me to do with it.
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