Grimmspeed AOS, your thoughts? - Subaru WRX Forum
 
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post #1 of 5 Old 01-28-2010, 12:12 PM Thread Starter
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Grimmspeed AOS, your thoughts?

i just seen this product from grimmspeed. it sounds to good to be true!! i hate oil in my intercooler and on my race bikes i always do stuff about the crank case vent so im not sucking down oil. the price is really high! $250 is lowest ive seen so far. BUT 2 Perrin catch cans will run you almost that and you have to always maintain them. what do you guys think? grimmspeed is a good company No??

Most COMPLETE and COMPACT Air/Oil Separator on the market!

An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake system.



...The GrimmSpeed AOS is unique as it allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Our AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil in your system, the result is 1) reduced fuel octane 2) higher chance of engine knock(detonation) 3) worse emissions 4) higher oil consumption. Our AOS will solve all of these problems.

In GrimmSpeed fashion, we have made a very compact unit that packs a powerful punch(and looks good while doing it)!

No more having to check/empty your catch can and refilling your oil. The GrimmSpeed AOS coalesces oil without using a mesh media. Mesh medias can cause contaminates to collect and build up resulting in possible sludge. Our AOS is self maintained so you can just sit back, stop worrying, and enjoy driving your car!


Air/Oil Separator FAQ:
Q: Is this beneficial on a street car?
A: Yes. Even in stock form, you will experience oil going through your intake system. If you have ever looked in your intercooler piping you will notice a bunch of oil build up on the inside, our AOS takes care of this problem.

Q: I've heard about the milky oil substance in cold climates when using an AOS, is that relevant?
A: During our testing here in the frozen tundra of Minnesota we have only noticed very minimal milky substance from the AOS(no more than what is found under oem oil caps). We have found that because our AOS lets you keep your PCV Valve, the GrimmSpeed AOS will have less of the milky substance than our competitors. Its design also virtually eliminates an ice up condition.

Q: Why the GrimmSpeed AOS over other AOS products?
A: The GrimmSpeed AOS allows you to separate the vapors from both the heads and the crankcase. Others on the market only allow you to separate the vapors from the head. Also, our AOS allows you to retain the OEM PCV Valve. Being that it allows you to do both of these things at the same time makes it the most complete AOS on the market.

Q: How will this AOS increase my octane?
A: When the oil vapors are mixed into the intake system, it effectively lowers the octane which can cause detonation. Installing our AOS will eliminate the oil vapors in your intake system thus eliminating the loss of octane. On modified cars this let's you get more aggressive with your timing/boost maps and will allow you to make more power!

Q: Do I need to carry around a 19mm socket to open it?
A: No, we have sized the cap nut to be the same size as a lug nut. So as long as you have a tool to take your lug nuts off(which you should always have in your car), you will have a tool to open the AOS. On a proper running system you shouldn't need to open the AOS very often.

Q: How big is the unit compared to the oem oil cap? I'm running a FMIC and need to make sure it will fit
A: We created it so it will work perfectly with a FMIC as well. The body of our AOS as the same diameter as the oem oil cap.

Q: What models will this fit?
A: Our AOS will fit ALL Subaru models.
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post #2 of 5 Old 01-28-2010, 02:49 PM
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I've had my eye on that since they released it a couple weeks ago... It's essentially a catch can that goes where the oil cap is (replaces the oil cap) so it just drains right back into the oil pan. Only thing I wonder about that is since it drains right back into the oil, does it throw a bunch of other crap in there too? I would worry about water and other grime getting in my oil.

-Chris
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post #3 of 5 Old 01-28-2010, 09:45 PM Thread Starter
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Quote:
Originally Posted by RcrsWetDream View Post
I've had my eye on that since they released it a couple weeks ago... It's essentially a catch can that goes where the oil cap is (replaces the oil cap) so it just drains right back into the oil pan. Only thing I wonder about that is since it drains right back into the oil, does it throw a bunch of other crap in there too? I would worry about water and other grime getting in my oil.
you sure about that? i mean i read its the same size as the oil cap but i didnt see anywhere in that that it says it replaces

nvm i think your right, looking at the pics on Grimmspeeds website
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post #4 of 5 Old 01-28-2010, 10:58 PM
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Its almost the same as the Prova one ($429 or so), but cheaper. I think its a great thing, but thats just me.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX
Cobbtuning.com"
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post #5 of 5 Old 01-30-2010, 09:35 PM Thread Starter
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for $250, maintance free, easyer install then 2 catch cans...i say great thing
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