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Old 07-01-2010, 06:35 PM   #1
The G.O.A.T.
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Default does anyone make a Air Oil Separator for na???

Just wondering if anyone make's a Air Oil Separator for na
and what to expect as right now I go through about 1.5 liters every 5000 km in my 07
Is it worth it, will a turbo one work and how much and where do I get one?
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Old 07-01-2010, 06:41 PM   #2
prometheum
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there's really nothing special about the grimmspeed one that makes it for turbos only. you just need to figure out how to route the hoses. any oil catch can would work and would probably be easier to install.
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Old 07-01-2010, 08:06 PM   #3
Henry H
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Quote:
Originally Posted by prometheum View Post
there's really nothing special about the grimmspeed one that makes it for turbos only. you just need to figure out how to route the hoses. any oil catch can would work and would probably be easier to install.
Agreed.

Any simple catch can will do. I have an 08 and I have some oil in the can, but the build-up is very slow. I've never had to empty it yet after 20k or so and it has not even gotten full enough to wind up on the indicator yet. It'll definitely keep your intake valves cleaner in the loooong run.
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Old 07-01-2010, 09:08 PM   #4
chazly413
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Actually, the turbo ones do not work properly for the NAs. I cannot remember the specific reason, but williaty should be here soon to explain it.

Just do a catch can.
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Old 07-02-2010, 01:51 AM   #5
The G.O.A.T.
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^this is what I remember as well but I can't remember why for the life of me???
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Old 07-02-2010, 09:11 AM   #6
Patrick Olsen
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Perhaps reading the ginormous N/A AOS thread would help you remember. I found it by searching for "catch can".
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Old 07-03-2010, 01:39 AM   #7
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1) The GrimmSpeed one doesn't work for the NA. They finally quit saying it would after I explained exactly why it wouldn't.

2) Some of the others (Crawford, Ixiz, etc) can be made to work for the NA if you think carefully and plug up some of their ports.

3) I am 99% sure the product in the linked thread isn't going to happen. Since I'm not at TiC anymore, there's no one to push for NA products.

4) Read the Why do NA Cars Even Have PCV Valves? thread and there's every bit of info in there you need to figure out why the Grimmspeed one doesn't work and how to make one that does.
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Old 07-03-2010, 02:12 AM   #8
mean_gene
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oh nice info.. new things learned today..

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Old 07-03-2010, 08:30 AM   #9
stidoc
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Quote:
Originally Posted by The G.O.A.T. View Post
Just wondering if anyone make's a Air Oil Separator for na
and what to expect as right now I go through about 1.5 liters every 5000 km in my 07
Is it worth it, will a turbo one work and how much and where do I get one?
Leave the PCV in place and install a catch can between the PCV and intake manifold. Saikou Michi makes a very effective can for a good price though it obviously requires emptying from time to time. If you don't have much blowby, emptying intervals will be quite long, like check it with oil changes. If you're cheap I have a couple of used ones that work fine and I'll let you have one inexpensively.
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Old 04-29-2012, 04:18 PM   #10
steven765
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Back from the dead. I'm looking at a catch can for my 2.5NA. I was just looking inside my hoses off the valve covers and noticed a nice oil sheen coating on the inside.
I thought for an NA engine you only needed the catch can on the PCV line?

After further reading, given the crankcase reverses direction. I guess that means I need two cans one for the crank cases and one for the PCV? Tying them together I think would be bad; no?

Given I'm in the cold climate I think my only option would be the crawford with the engine heat connection?
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