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Anyone install catch cans? What did you use? I noticed a little oil when I installed my new intakes.
 

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Will this have any fitment issues with AMS intakes or HKS BOVs?
I can't speak to the HKS BOVs, but they installed it on car with AMS Intakes:

 

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Will this have any fitment issues with AMS intakes or HKS BOVs?
Mishimoto responded on the InfinitiQ50.org that the HKS BOVs would not cause any fitment issues with their OCC setup.
 

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Environmental issues aside, is it possible to simply delete the OEM gas recirculating system that makes the catch can necessary in the first place and vent the gas outside (avoiding carbon build up altogether)?
Pros?
Cons?
 

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Environmental issues aside, is it possible to simply delete the OEM gas recirculating system that makes the catch can necessary in the first place and vent the gas outside (avoiding carbon build up altogether)?
Pros?
Cons?
Ive been told you need to keep a closed system on a MAF car.

Letting the pressure escape naturally has always been my thing. IDK why one coulnt plug the fitting on the intake and just vent to atmosphere..? Any MAF specialists care to chime in on this?


Now, Lets take a look at this can.


Mishimoto doesnt show any filtering or the can open for that matter..

Whats to keep the vapor from just going in and right back out to the turbos..?

Just because that pic:



shows oil it *may or may not have caught* , doesnt mean it works properly.


I was already looking into this version my Subaru buddies use.

Universal Single Catch Can

As you can see it has media for the vapor to hit and then drop down.

Now these cans dont catch everything as it IS contaminated air, but they sure do help with stopping the induction of oil vapor into the fresh air stream.


Now the EPA requires the PCV system to vent back into the engine for EPA reasons.. Every car out there should be using a catch can. Its just worse for turbo'd cars as compression and blow-by are more extreme. Oil vapor lowers octane rating which means the computers pull timing. So that Premium 91-93 octane you pay for isnt getting used to its full potential.


I have used Mishimoto in the past.. some stuff was great, other stuff, not so much..

This might fall into the not so much category. If they had an engineer put so much work in the bracket, which engineer was on vacation for the media/filtering inside the can?


Cute write i must say, But remember, theyre in business to move products. Not telling you (or showing you) theres nothing inside to trap the oil as it passes by just means they're just using any old style can found on Ebay and engineered a bracket and kicked the price up to make money off unsuspecting and uninformed people. This has been like this in the aftermarket community for years. Especially in the Honda specific areas, but thats another conversation.

Any dipstick to check the oil level?
No media inside?





Guess you'll have to add your own steel wool which takes up valuable space inside, then unscrewing it, it may be full of oil and oil slides down your shock tower which will be a PITA to clean.

No thanks, Ill pass.
 

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I have used Mishimoto in the past.. some stuff was great, other stuff, not so much..

This might fall into the not so much category. If they had an engineer put so much work in the bracket, which engineer was on vacation for the media/filtering inside the can?
See video link - he shows the internals of the Mishimoto OCC. I presume the same brass filter and vapor plate are used in the VR30DDTT kit:

 

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According to the video above, the difference is that the oil air separation is more complete in the Oil-Air Separator. This is achieved with a better system of baffles and by cooling the mixture. These Oil-Air separators are HUGE though and I doubt there is room in the engine bay of a Q50 or Q60 for one of these.

The Mishimoto catch can looks interesting. I wish there was an install video. I agree that the HKS BOV's wouldn't be "in the way" per se, but I wonder if they placed it in the back of the engine bay because you have to tap into the vacuum line. If this is the case, I have already tapped into the vacuum line for the HKS BOV install. I guess you could tap into it again, but I would wonder if this would compromise the function of these components placed in series.
 

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The best AOS on any of my cars was the beautiful and well engineered AOS from R & R Racing for my 2015 Lexus RCF.







This thing was HUGE (for the big V8). And part of the install included relocating the window washer fluid.

I laughed about all the pundits on the Lexus forums who appeared on the forums saying that an AOS was pointless and a waste of $190? That the car already came designed and engineered to handle crankcase vapor ventilation. That's not the point. Cars coming of the assembly line are engineered for first cost, even a "racing" inspired car like the RCF made for track duty. Install a true, good (functional) AOS on your car and then head out to Willow Springs for a full day of tracking and then get back to me.



This thing was nice. It had a SIGHT glass on the side which was very convenient and you also it was very easy and convenient to empty, once full (which would happen after one full day of tracking the car).

You would not want that crap going back into your engine. When I put my Stillen air intakes in I noticed oil accumulation on my Q60's inlets.

I would love to find an AOS comparable to that AOS, as opposed to the "el cheapo" oil "catch cans" you find on eBay.


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I never knew there was a difference..

A catchcan is supposed to be a air-oil separator, thats its sole function.

I'm confused as well? (Wouldn't be the first time!)

The video doesn't make sense to me. The guy said a a catch can needs to be emptied periodically but an AOS doesn't? I've never seen any AOS that didn't eventually need to be emptied. What is he talking about?

I always thought that an AOS WAS a catch can, of sorts. Just a "better" (more advanced) version of a catch can. With some sort of filter (steel wool?), baffles, in order to pass "only" (assuming it worked perfectly) AIR back into the engine????





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I'm confused as well? (Wouldn't be the first time!)

The video doesn't make sense to me. The guy said a a catch can needs to be emptied periodically but an AOS doesn't? I've never seen any AOS that didn't eventually need to be emptied. What is he talking about?

I always thought that an AOS WAS a catch can, of sorts. Just a "better" (more advanced) version of a catch can. With some sort of filter (steel wool?), baffles, in order to pass "only" (assuming it worked perfectly) AIR back into the engine????





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He clearly states in the video that the AOS in the video has a separate oil return that dumps any liquid oil captured back into the engine, bypassing the air intake. A simple catch can does not do that.
 

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Yea.. Sounds good, but usually that drain going back to the engine is usually another path to vent the PCV. Then it shoots oil into the can.

Ask me how I know
 

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According to the video above, the difference is that the oil air separation is more complete in the Oil-Air Separator. This is achieved with a better system of baffles and by cooling the mixture. These Oil-Air separators are HUGE though and I doubt there is room in the engine bay of a Q50 or Q60 for one of these.

The Mishimoto catch can looks interesting. I wish there was an install video. I agree that the HKS BOV's wouldn't be "in the way" per se, but I wonder if they placed it in the back of the engine bay because you have to tap into the vacuum line. If this is the case, I have already tapped into the vacuum line for the HKS BOV install. I guess you could tap into it again, but I would wonder if this would compromise the function of these components placed in series.
The PCV line shouldnt be confused with a vac line. Last thing you want to use as a source of vac is the PCV line.
 

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IridiumRS400, these ship in March. Are you going to be the first to install? Please upload pics or a video of the install :p
I'm sure somebody will be "the 1st", but if it only requires 30 minutes to install, I'm all over it :)
 

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Still not convinced to hand over 200 bucks for a BS can with an engineered bracket. Hoses I can get on my own.


To all you people with cash burning a hole in your pockets, have at it
 

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Still not sold on which catch can to get.

There are certain features I want in the can I install such as a sight level so I can easily see the amount of oil in the can, and easy disassembly for cleaning out the inside of can and whatever filter media it uses. Some also have a drain? (Though I don't know about that "feature"?) And also recirc (not vented to atmosphere).

I also will upgrade the typically "el cheapo" lines that come with some cans unless they're heavy duty.



As I previously posted, loved the setup from RR Racing (another application)



I also saw this Mishmoto can on the Concept Z site, has the sight glass, but I haven't checked it out in greater detail.



***. EDIT. ***

Now THIS is more like it! $118




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