Air Oil Separator VS Catch Can Explained. Is One Better?
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3 роки томуThis is a very frequent question that I see asked a lot. "Should I get an AOS or will catch cans work okay?" So in this video we are breaking it down and taking a look at both an IAG AOS and a set of Radium Engineering Duel catch cans.
First off both of these systems are very beneficial to have especially for any High compression engine or turbo charged application. And you can only imagine the benefits that these systems will have when you have a turbo high compression car.
For me i have no preference for which system is better than the other however there will be clear indicators of which system you should used based off of your application, but you'll just have to watch the video to find out.
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Parts Used:
2015+ STI:
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@davidvuong3234 3 роки тому
Crazy I've been looking at a catch can and here you come out with a video on it. Awesome content for any wrx sti owners out there looking to mod their cars. Keep up the great work man
@Smeedia 3 роки тому
Thanks my man🙏🔥😁
@mrpithon Рік тому
I came from the 2004 STI series, seeing the engine bay in this car is insane. Really nice work, hope to get my '04 WRX looking this good.
@cycle2bhappy 3 роки тому
Great vid and post as usual. Just had the install of the IAG AOS done, so nice, looks fabulous in the car and functions so well. However, I did consider the catch can approach but ultimately went the "set it and forget it" route it with the AOS. Cheers.
@justinshute5726 6 місяців тому
Living in a cold climate and not wanting the hassle of having to keep catch can empty and hope for not freezing I went with aos. Was planning catch cans for a long time but ultimately was convinced to go with IAG and glad I did
@jamescolquhoun9636 2 роки тому
As a new Subaru owner, dude your channel is like the best thing ever. I had so many questions and you’ve answered like all of them in your vids already🤣appreciate it man, you a real one
@Smeedia 2 роки тому
Eyyyy, glad the videos have helped!
@Sooobwuu 2 роки тому
Just picked up my 21’ sti and your videos are godsend. Love the work, keep it up ! ✌️
@Smeedia 2 роки тому
Eyyyyy congrats on the car 🔥😁
@tommyboy049 3 роки тому
installed a catch can to my 2019 v6 challenger. kept reading, "oh you really don't need it for the v6's". Well, after 6k miles I poured out 3oz of oil
@Smeedia 3 роки тому
All engines will have blow by, turbo, supercharged and high compression will have it worse but any engine will benefit from a catch can 🔥
@lowlifeangler 3 роки тому
Is Challenger made by Dodge ?
@blankfaceman9694 2 роки тому
@@lowlifeangler yes
@FADWC 3 роки тому
I just want to say thank you for the education! I appreciate your videos my dude 🙏
@Smeedia 3 роки тому
Anytime!!!
@SICMADE7 Рік тому
This was the 1st vid I watched to learn about this and feel like I know a heck of a lot more now, thank you for being detailed! At the end of the day, I think I'll save up and go the AOS route
@Smeedia Рік тому
Glad to hear the videos helped and an AOS is well worth it 🥳
@Qazxswer68 3 роки тому
Speak of the devil 👹 I was just explaining this to my son yesterday. This will be a great visual for him. Another one🔥
@Smeedia 3 роки тому
Eyyyyyy! Perfect timing 😁
@scottdman 2 роки тому
Interesting video and well done. Not sure I 100% agree with all of your statements/philosophy but the video is well done and I appreciated the intro to some new brands.
@lucienlalachance 3 роки тому
been waiting for this one! Good stuff err bud
@Smeedia 3 роки тому
🔥😁🔥😁🔥😁🔥
@DylanMorehouse 2 роки тому
Nice. I like how the oil is put back into the system with the AOS. Convenient. Never knew the difference and now I do! Thx bro 😎
@Smeedia 2 роки тому
Anytime 🔥
@user-pwfus 3 роки тому
The main thing is the pvc system has to be a closed system with no air filter and the valve cover system has to be vented to allow air to escape when you have high pressure like rpms.
@rdsii64 3 роки тому
I recently purchased an F150 with a twin turbo motor. I have been educated. Thank you.
@subie3138 3 роки тому
Nice!!! Perfect before buying!! Just My brother and I we're talking about this last week. He got the twin turbo Stinger Kia, and me My subie. AOS is the perfect fit for me 😝 Thanks for the info 👍🏽
@Smeedia 3 роки тому
Definitely will help keep things healthy! Glaf the video helped 😁😁😁
@codyhendrickson7735 3 роки тому
IAG AOS is one of my favorite things I've installed on my car. Highly recommend their AOS, great product.
@Smeedia 3 роки тому
They make a killer AOS 🔥🙏
@cycle2bhappy 3 роки тому
Agreed .... the IAG is highly functional and a reasonably easy install. If I would have only removed (deleted) the sound generator tube beforehand, things would have been so much easier. Cheers.
@Flatbushfonz 3 роки тому
@@Smeedia what about cobb
@Smeedia 3 роки тому
Cobb is good. Just a re-branded IAG with diffrent baffling
@ryanarch7366 3 роки тому
Great video as always! What was your reasoning for going AOS on the blubaru and dual catch cans on the BRZ and not both AOS or both catch cans? Wanted to try each out?
@Smeedia 3 роки тому
Wanted to be able to compare the two as both cars are driven. Personally I have no prefrence on either option. Theyrr both good to have but catch cans will typically always be cheaper
@azntuanboy 3 роки тому
IAG just announced couple days ago that they're releasing their V3 AOS in the fall, I'm excited can't wait great video bro!!!
@jdmking4776 3 роки тому
Bruhhh. I just bought mine wtf lol
@Smeedia 3 роки тому
I sae that, they will have a conversion from the V2 to the V3 avaliable also 🙏
@Kakeyoro Рік тому
The reason why the "oil" in the catch can seems thinner is because it's not just oil, being separated. It's mixed with other vapors, including water and fuel. I would go with the Dual Catch Can system because I wouldn't want to pump anything but 100% oil back into my engine. This would prompt you to perform oil changes more frequently.
@HandMadeWrath Рік тому
But doesnt the aos seperate water oil and air
@weduhpeople8504 6 місяців тому
Yes and since catch cans are not being recirculated with filtered oil you really have to keep an eye out on the oil level in your engine. Depending on your motor’s health or piston to wall clearance if it was done to tight tolerances or loose tolerances will dictate how much blowby you have. I noticed the oil level can drop quickly where if you weren’t checking your oil level you may find your oil level on the dip stick isn’t even meeting the minimum level required. Running e85 definitely thins the oil in your engine. On oil changes you can see how watery the oil your draining is and can smell fuel mixing in your oil which lowers the viscosity of your oil.
@cumshot247 5 місяців тому
Yup, on my GDI, I get this black, runny, foul smelling, fluid in my can. I surely wouldn't want this to recirculate onto the backs of my valves. 💀
@Vermonstered 5 місяців тому
@@HandMadeWrathNope, I honestly don't understand the point of the AOS in this configuration over a catch can. As the only tangible difference is the AOS dumps its contents back into the oil system. Adding in the complication of running coolant lines to heat up the AOS system. The coolant will be whatever your thermostat opens up the system at or generally around 180f which isn't hot enough to vaporize oil or water but will for fuel but only if given time. Being it's immediately dumped back into the oil system and you see how little actual fluid these collect (tablespoons in thousands of miles) it makes no tangible benefit to the additional plumbing and risk of extra oil and coolant lines to possibly reuse a few tablespoons of not great oil anyway.
@spidding 3 місяці тому
@@Vermonstered my view on this is that both catch-cans (or non-return-to-saump air-oil separators) and what are marketed as "AOS" (or return to sump air-oil separators) both have their use cases. For street/light-track applications for lazy owners - return-to-sump AOS. street/light-track applications for fastidious owners - catch can For heavy track applications with lots of blowby or if you are in a setting where you do many continuous hot laps (endurance racing etc.) - AOS. Polluting your oil mix in your sump is a lesser evil compared to running low on oil.
@aggnal2892 3 роки тому
What do you think of this particular AOS system?: ukposts.info/have/v-deo/qaGki6ufoX6qlqc.html
@xxraverxxonxtacy 3 роки тому
Had a Cusco on my sti and got mostly vapor, difference was running Motul 5W-40 Xcess which also helps with less blowby instead of regular 5W-30
@Smeedia 3 роки тому
Interesting to know, but makes sense a higher viscosity could reduce the amount of blow by
@s208richard8 Рік тому
Motul also make STI performance oil - 5W-40 - recommended for the S207, S208 models
@mijikle 3 роки тому
The idea of having an additional coolant/oil return line to rout, on top of having potential contaminated oil feed back into my oil pan is why i wont do an air/oil separator. Catch can it is. Great video.
@Smeedia 3 роки тому
Loved the catch cans on this car, kept a lot of the nasty out of the motor 🔥
@MyNameJason 3 роки тому
I was literally thinking about this last night since your catch can post on instagram lol
@Smeedia 3 роки тому
Had to get some interest in it before posting 😉 lol
@zokusharuuku1091 3 роки тому
Aos also is a bit harder to install which will cost more. I don’t like the idea of dirty nasty watery oil going back into the engine so I prefer catch cans but my tuner was adamant that I switch to an aos with the high boost I’m running. I declined as I honestly love changing my catch can frequently so I can easily look at what’s going through my engine.
@Smeedia 3 роки тому
Catch cans work great, just need to remember to drain them and they're solid 🔥😁
@TheWestysworld 8 місяців тому
How often do you empty it with the turbo?
@zokusharuuku1091 8 місяців тому
@@TheWestysworld every month or so I’ll pour out about half an inch of oil out of the can
@kwbalance108 2 роки тому
Though I own Mazdas, I find joy watching all of your videos!
@Smeedia 2 роки тому
Ryyy appreciate the support my friend 😁🔥
@kwbalance108 2 роки тому
@@Smeedia Yessir!
@AntonioHernandez-bp3mx 11 місяців тому
I'm putting dual cath can on the 22 wrx would it be fine if I put em on or would there be problems I've seen someone say that the catch cans cause the blowoff valve not to work correctly
@Bigjawnnn117 Рік тому
Hey I have a question is there a difference between a single and dual catch can set up? I’d like to get one for my wrx but price is kind of important to me as of now thanks if you respond !
@ZephyrusRomerG 3 роки тому
Salute! Detailed review!! 💯
@Smeedia 3 роки тому
Thank you 🙌🙏
@853rudedogs2 2 роки тому
the catch can look handy for monitoring blow by. would be good if air/oil separator could monitor too,
@17.06.Copper Рік тому
Hi Smeedia, I have 2016 Forester 2.5i FB25 block and decided to run a catch can as I had my original block after 200,000km, succumbed to an internal head gasket leak. Rather to repair it, I opted for a low KM 2017 FB25 block and had it recently installed. I'm trying to get as much longevity as possibly and thought the oil catch can would help. I have heard that it also increases crankcase pressure and acts as a restrictor to the PCV system. Have you heard of this and do you have any insight for me?
@kroviken 3 роки тому
Great explanation friend! Thank you! - from Subaru driver Malaysia
@Smeedia 3 роки тому
❤❤❤
@giovlone742 3 роки тому
Finally a video on this topic, I was thinking of running the boomba cans but probably will go the iag aos
@Smeedia 3 роки тому
Both are good options IMO, I'm starting to lean towards cans a little mkre over AOS after seeing the inside of that IAG.
@giovlone742 3 роки тому
Smeedia if only install one catch can which one do you recommend will catch more oil on the FA20 motor?
@Smeedia 3 роки тому
Thr passenger side off of thr PCV valve 🙏
@onairamzelarom1536 2 роки тому
Hey man I have a 20FA-20 lol it’s my first subie she’s all stock haven’t done nothing at all but seeing your video has me thinking the obvious better choice would be an (AOS) but seeing your set up on your BRZ running dual catch cans seems like that kind of set up is more than enough to keep the engine healthy and happy as long as it’s not being pushed too far beyond reasonable HP it’s tuned to handle and what’s the price difference between the two setups you showed on this episode ? Huge fan of the channel too man very well organized material and subie 😎🤟🏽
@Smeedia 2 роки тому
Eyyyy honestly a single catch can would be more than sufficient. Radium makes some pretty affordable options. I know Crawford was working on an AOS for that engine but nkt sure in price point of it yet 🙏
@ericmitman9675 3 роки тому
Great video again, love your stuff. Any recommendations for catch cans on a 2020 STI? I really don’t see the value in AOSs as pricy as they are. Also wouldn’t find it inconvenient to empty the can every oil change.
@Smeedia 3 роки тому
Radium makes some really good ones 🙏🔥
@okthen8445 3 роки тому
Radium dusk catch can ftw
@stephenmargetjak6989 2 роки тому
@@Smeedia part numbers?
@Mike-cu6gk День тому
Great video. These work great (a o s) I have seen these on diesel engines catch on fire because they were not maintained meaning cleaned and filters replaced during every oil change.
@jasonjones2871 3 роки тому
I opted to go with the ADD W1 catch can and only installed the CCV side (passenger side) as I've seen so many videos regarding duel cans that have the same results, dry PCV (driver side) can. The product is comparable to many others but at a lower cost, $170. Haven't seen too many WRX/STI's with this brand, have you heard anything about them?
@Smeedia 3 роки тому
Can't say I have, but I do agree a single catch can is really all that is needed
@57250tr 3 роки тому
I’ve been looking for a catch can for my VW 2.0 TSI engine (factory spec) and my biggest concern is freezing oil lines in winter, what should I consider to avoid that?
@Smeedia 3 роки тому
For a catch can you don't need to worry about it because it will not be returning the oil. But in super cold areas an AOS can have the return line freeze if they're not using coolant to hear the AOS
@peterorigenes4358 2 роки тому
I am installing a dual catch can in my turbo direct injected Alfa 4C. I had Mazdaspeed 3, oil catch cans were really useful that engine blew a lot of through. Like an old Porsche turbo, it you accelerated hard and closed the throttle, then nailed the throttle it was like a smoke generator. Totally normal on MS3. So was carbon build up. Some engines are prone than others. The Alfa 2.0 in the guilia has very little blow by. The 2.9 now has port and direct injection, like Fords and many new engines. Helps not only with managing combustion but also keeping valves clean.
@Smeedia 2 роки тому
Duel injection is 🔥 the FRS/BRZ platforms use Toyota D4S system to prevent carbon on the valves as well 🔥
@chadm6805 2 роки тому
It’s crazy watching this video after watching your current ones. The amount of progress and change in the sti and your channel is awesome.
@Smeedia 2 роки тому
Def come a long way 🥳😁
@alexudolkin2146 Рік тому
The heated AOS is good at evaporating some moisture but I suspect the return oil still brings blow by fuel & water vapor back into your oil pan. 3k oil changes are crucial
@Vermonstered 5 місяців тому
Your coolant is only 180f, the vapor entering the can will likely be in the same range of temperature so not much benefit. The purpose of heating the AOS is to allow the water and fuel vapor to pass through because the temps are closer to their vaporization temp while oil will hopefully condense. You want the small amounts of excess water and fuel to pass back into the combustion cycle and exit the system. But for any daily driven not heavily modified car, I question why anyone would want to add an additional oil line, tap to the pan, t off a coolant line all because they're too lazy to check a catch every time they do an oil change. Or in this case it looks like he could get away with 3+ oil changes and still have few problems.
@MisguidedAng3L 3 місяці тому
I just installed a oil catch can on my 2019 wrx and the turbo is noticeably way quieter, it also makes me feel like my car isn't getting the power it was before. I'm not sure if i did anything wrong or if all this is normal with a catch can. Any insight would be very appreciated! Thanks! Great content as always man keep up the good work
@HavokStrifeX 3 роки тому
You finally sold me on the catch can here, seeing that emptying it at oil change intervals would be fine. But hey, imagine that, 4000 miles without checking a catch can on a Subaru engine and it didn't completely overflow! Must be some pretty good engines after all! 😉
@Smeedia 3 роки тому
The catch cans will definitely help 🔥🙏 and oh yes 😁
@geriatricginger Рік тому
4000mi, and they barely had any in it? Must be nice. I put one on my 2.0T VW, and it fills up 300ml catch can in about 70 miles.. Yet compression and leak-down tests are in spec.. WTAF lol
@clutchboi4038 Рік тому
@@geriatricginger probably just means his can isn't catching as much lol
@paulmarsdensr1095 2 роки тому
I would definitely get the IAG AOS.
@retiredperson4054 7 місяців тому
What filtering internal setup works the best? I have been looking hard and long for several days on end trying to discover which brand of catch can has what filter set-up on the inside and MOST IMPORTANTLY which filtering mechanism is the ULTIMATE at not only allowing oil and water vapor into the catch device but also the prevention of the oil and vapor to get pulled back into the intake. And to add to that, which device(s) may cause “restrictions” to the crankcase ventilation system - and what about the factory PVC devices do they get removed?
@tdro98 10 місяців тому
On a ej205 Will you get more oil from crank/pcv or from the heads?
@spidding 3 роки тому
A few points to add. 1) not your fault, but I think there is a lot of misuse around catch can and AOS terms. The way I see it, a catch can is a type of Air Oil Separator. It's function is to...wait for it...to seperate the oily residue from the returned air. You can classify these generic Air Oil Separators into various types: a) a very simple non baffled non-returning unit. Still attempts to seperate air and oil but probably doesn't do a great job without baffling. (E.g. el-cheapo eBay units) b) a baffled non-returning type (like the radium units in your video) c) a baffled returning type (like the IAG/Cobb unit) 2. It really should be noted that blowby is not just air+oil. It also carries a filthy mixture of burnt and unburnt fuel. So, whilst the IAG AOS may do a good job of keeping water condensation out of the caught blowby fluid, the IAG unit is still dumping this polluted content back into your sump. This is more severe on E85 applications. Recommended to decrease oil change frequencies if they are not already frequent. This is the main reason why I have a bit of a preference towards non-draining air oil separators (aka catch cans). 3. the amount of blowby that you get (or that is caught in a catch can) is not only due to the condition of your engine. It's also influenced by how you drive the vehicle. Case in point, the catch can I run on my STi runs bone dry 99% of the time. However, out on track where oil temps can breach 120degC, this can thin the oil (I use 5w40) out to such a degree that you now see alot of blowby. I caught approx 300mL from 30min (2 sessions) of circuit driving in 30degC ambient temps. That triggered me to install an external oil cooler - now the catch can runs dry again even at track duty.
@Vtecyo81 Рік тому
I run a oil catch can already on my EVO8 MR, would I need to change to a AOS? What benefits would the AOS make over the catch can? Luv ur vlogs on JDM cars bro!!!
@XBexGone 3 роки тому
Does the AOS you linked for the Subaru wrx 16 in the description come with all the necessary parts or I gotta buy it separately?
@Smeedia 3 роки тому
It should come with everything 🙏
@Jordan-ql6tm 2 роки тому
Appreciate the well explained video. What are your thoughts (any pls chime in) of the AOS possibly returning water and unburned fuel back into the engine with the oil? I notice my Subaru buds tend to gravitate towards AOS far more often then my Chevy buds who all swear by Catch cans? I daily an STI and just fixed up my ole '98 z28 which has been mothballed for years now and being old AF I wanna keep her healthy lol.
@Smeedia 2 роки тому
Personally inuse the competition series now so I'm not pushing potential dirty air back into the system. General rule of thumb I follow is of its an external cold area than a catch can is preferred due to the potential of moisture freezing in the oil return line, if its a dedicated power car/track car I'd use a catch can over an AOS. The standard AOS is fine for a normal street car though
@Jordan-ql6tm 2 роки тому
Right on appreciate the response, it's a trip now against aos the camaro groups are vs my subi groups. Maybe those v8's are just more prone to dumpin water & unspent fuel back into the system than our subarus are complete polar opposite in popular choice between the two products lol. I don't care to acrew around with emissions in the CaliKremlin lol so the only legal choice would be the Crawford v2 aos for the STI daily but haven't yet since those Blackstone analysis have shown almost zero contaminates & normal material wear for a car I'm the 80k range when I'm almost at 120k .. The z28 will be the abused car again like it was as a broke youngster before she was mothballed lol. Haven't had any increase in bearing material on the STI since installing a Fluidmpr balancer show up on analysis that number is exactly the same from 75k - 119k now will be putting one on every car from now on.
@K03sport 10 місяців тому
love Radium stuff...thinking of their aos as I have their bmc brace and their aos mounts to their bmc brace. this should leave room for the AEM strut bar I'm eyeing for the near future...still curious is to why Subaru didn't engineer an AOS into their engine design from the get go on the FA/FB series engines.. 🤔
@bradgreen987 3 роки тому
The IAG aos is great. I used to smell oil after a hard pull, but now nothing. Love the no maintenance. Wish I could see how much blowby is collected
@Smeedia 3 роки тому
Can always swap it out for a can set up if you wanted to see how much you were getting 😁
@ajw828 3 роки тому
Great video! I have the IAG AOS in the garage, soon to be installed :) Did you see their new AOS? I think it comes out relatively soon. Wondering what the difference is between that one and the current.
@Smeedia 3 роки тому
I saw they were releasing a new one but don't know whats diffrent yet 😅
@mikekillion4731 Рік тому
A little late to the party but they say it gets more of the water out and some other improvements.
@ThatWasherNerd 2 роки тому
Just finished installing an AOS on a 2016 WRX (Crawford. I’m sorry, but I should’ve done more research). Anyways, the car won’t start. AP gives P0606 which is an ECU fault. Could it be the battery? A pinched wire? I’m kind of panicking here. Any advice is appreciated. Thanks.
@Smeedia 2 роки тому
Double check all wires are plugged back into the ECU had that happen once and the ground strap was off
@billychi6961 Рік тому
I have a catch can with a drain port. So I teed it into the crank breather with a check valve so pressure does not blow through the drain. I basically have an AOS for cheap it works good and drains back into the crank without the can filling up. I also capped the PCV valve and the breather into turbo inlet by the throttle body. So VC breathers from the cross pipe and crank breather feed into the inlet and the outlet goes into the turbo inlet by the power steering pump. Way simpler, way more effective and used nice fluorinated silicone stretchy vacuum hose for good seal without ever becoming brittle
@sergiikalinichenko7442 Рік тому
Did anyone try installing a catch can on the 2005-2010 Honda Odyssey? Mine has an unusual PCV shape. Please let me know if installing the catch can on the 2010 Odyssey is possible. Thank you
@jamiesharretto4579 2 роки тому
I get no oil accumulating in my oil catch can...is that bad or good...2009 bmw twin turbo e89 n54
@JohnNorris411 10 місяців тому
Also, I throw a stainless steel scrub brush you use for doing dishes, into the catch can. It provides a lot of extra surface area for oil vapors to come in contact with, stick to and condensate on to drip down to the bottom of the can rather than making their way through the air stream up the exit tube to the air intake.
@psions555 8 місяців тому
Could you use not very densely packed steel wool like a giant crack pipe for your engine
@BurmaJ 2 місяці тому
@@psions555Before track days I add the steel wool and roughly an 8 ball of crack to my catch can. YMMV.
@psions555 2 місяці тому
@@BurmaJ Try heroin instead. It will make the motor run so we'll. Be sure to add it frequently and not let it run out or the motor will run rough
@jcreno253 2 роки тому
Thank you for this! The Discord is 🔥
@Smeedia 2 роки тому
Anytime! 😁
@Plus_Frames 3 роки тому
I have a Cobb AOS on my STi. Is there a relevant difference between Cobb and the IAG AOS, or is it just personal preference? I heard they collaborated on making them and there isn’t too much of a difference other than price.
@Smeedia 3 роки тому
Cobb is just IAG, they partnered with them to make their own. The only noticeable difference is the baffling inside the can. Both are great options to get 🙏🔥
@Plus_Frames 3 роки тому
@@Smeedia Thanks for the reply! I just got my STi coming from a Miata and your videos are invaluable!
@Smeedia 3 роки тому
Glad they're helping and hope your enjoying the car! 🙌🔥
@EthyBear 3 роки тому
If there's moisture going back into the catch can then isn't it better to have that system than a AOS? I don't have either system yet but I'd personally want to get a catch can to make sure moisture isn't mixed back in the oil. I had my block reamed out to 2.7L so I probably need one of these systems more than stock builds. Awesome vid!
@Smeedia 3 роки тому
I would go with a catch can, you can at least tramp the moisture without any worry of it going back through the system. And hot damn did you go with a stroker kit?
@janbakker9866 Рік тому
What about the 100's of posts on reddit saying bad things about the aos. I have a iag aos sitting on my bench contemplating on not installing after all my research....just about to watch this video, hope it changes my mind! Love the content tho keep the solid work! 👌
@ObiWanStromboli 2 роки тому
Got washed away watching the differences between an AOS and catch cans and was nice to see the ol’ EJ-25 in the Bluebaru
@Smeedia 2 роки тому
I low key miss the EJ 😅
@Hanibul_Lecktor 3 роки тому
I like the Cobb/IAG for the lazer engraving. The IAG sticker kinda discolors and comes off due to the heat. Think it's just a couple of bucks more for the rebranding. Worth it !!
@Smeedia 3 роки тому
True, it does look 🔥🔥🔥
@AlejandroPerez-cb9ub 4 дні тому
Tengo 3 preguntas. un oil catch can puede generar mas presion dentro del motor ?? importa el tamaño del occ con un motor L4, v6, v8 ?? y por ultimo es mejor 1 o 2 occ en un motor v6 ya que esos motores tiene 2 salidas de pcv una por el banco 1 y la otra en el banco 2 ??. Tengo un impala 2019 V6 motor es LFX y cuando le instale el occ me empezo a silbar y cuando le quitaba la varilla de aceite se le quitaba el sonido al final se lo quite todo por miedo que se me rompa el motor
@dannyboy3591 2 роки тому
I noticed you saying you were going to dedicate a video strictly for that while going through the build process and I haven't been able to find it, or one that shows what hose/ports to plug or connect too. Can you make a video on your AOS Set up on your 2005 Impreza WRX STI? I wanted to know how to mount it to the car and the way you ran your lines. Unfortunately, my car will not have a front mount intercooler so it might be slightly different but that's okay because everything else is the same. I'll just have to tuck things really good
@JustinTheProCF 3 роки тому
I live in -30 Degrees celsius winters in Alberta and was told AOS can freeze the lines and potentially blow up. ANy suggestions for catch cans?
@Smeedia 3 роки тому
Radoum catch cans would be my suggestion 🙏
@ronaldpenasollet4184 3 роки тому
Smeedia, I have my flexfuel kit installed and all the parts suggested by you for a E85 swap, I already did a protune but I having some issues when I cold start the car, I saw your video about it and you said that is normal in cold wheaters because of the nature of E85, but I’m in Miami and right now is like 90 degrees every day, the car starts fine and it never turns off, but is does like is gonna or if you push the throttle it doesn’t respond well, I just want to know if that is still normal because of the E85 or I need to contact my tuner again. Thanks for all your help and the great content man
@Smeedia 3 роки тому
Its worth sending some logs to your tuner to see what he says, ive never had issued like that with mine 🙏
@ronaldpenasollet4184 3 роки тому
Smeedia I’m gonna do that, thanks for the help, I hope is nothing serious also because one the car is hot there is no issue
@jarrodblaesing9079 2 роки тому
Great video! Any recommendations for local Seattle area shops to install the iag AOS?
@Smeedia 2 роки тому
The mod garage is a popular one people go to as well as drive auto sports 🙏
@HugoHardinge 3 роки тому
Awesome video. I’m about to put a catch can on my Crosstrek. I haven’t installed it yet
@Smeedia 3 роки тому
Super easy and well worth it 😁
@HugoHardinge 3 роки тому
@@Smeedia getting hoses tomorrow then gonna mount mine up
@BrooklynKidd 3 роки тому
Heck yea needed to know this
@Smeedia 3 роки тому
🙏😁🔥
@gdtbsr3370 3 роки тому
i just bought the v3 aos for my 2017 sti 💕
@Smeedia 3 роки тому
Crawford or IAG? 😁
@gdtbsr3370 3 роки тому
@@Smeedia oh iag sorry hahaha cant wait for it to arrive
@huntersidey8611 3 роки тому
Completely missed this video but if I am doing one of these especially the AOS should I upgrade the hosing while I’m at it or are stock hoses fine?
@Smeedia 3 роки тому
Which hoses? 👀
@huntersidey8611 3 роки тому
@@Smeedia the ancillary hoses
@Smeedia 3 роки тому
No need to swap them 🙏
@RicondaRacing 2 роки тому
I never knew about the denaturing of the fuel. Getting an AOS today!
@Smeedia 2 роки тому
Well worth it my friend! 🔥
@Hyunw22 3 роки тому
Remember installing a IAG AOS on my sti. Absolute nightmare. Installed a catch can on my friends 86. Sooooo easy
@Smeedia 3 роки тому
The 86 is so much easier to do 😅
@okthen8445 3 роки тому
Great video. For me If it’s something like a daily a catch can is more than sufficient and actually to me better than a “AOS” because not only does a catch can not only desperate air and oils. It completely traps it in the can. That’s good because oil can potentially be contaminated by fuel and other stuff which isn’t beneficial to longevity. So yes a catch can actually is a “AOS” but it keeps that oil. On the down side you will lose oil but it’s marginal and not a concern. However if you have a catch can on a race car then that’s a different story. A race car gets wayyy more blow bye. And during a track session the last thing you need is to trap the oil in the catch can because then you’ll get oil starvation and that’s the last thing you need. So what an AOS does compared to a catch can is drain that oil back into the oil pan. Now the oil could be potentially contaminated but that’s a zero concern in a race car because the oil would be changed frequently anyways. So why not slap a AOS on a daily? Well longevity. A daily isn’t getting as much blow by as a track car and really doesn’t need to send the potentially contaminated oil back into the car. Most of the time people get an AOS because of the “set it and forget it” feature. And avoid the catch cans because they fear having to do more work to drain the cans. But you can find catch cans with drains ports that you can run under the car. That will allow you to drain the oil while you charge your oil if you will. Why not slap a catch can on a race car? Well you can but then it wouldn’t be a “catch can” it would instead be a breather tank. It’s like a catch can but with a much bigger body to hold more oil and vents the air atmosphere. So all that crap is never returning to the engine. But what about oil starvation. Well that’s where larger and baffled oil pans come into play. But that’s another story. In the end To me: catch’s cans for daily’s or even street cars (low end near stock power levels) AOS for track car/race car (high end power levels)
@Smeedia 3 роки тому
I think it comes down to how you drive the car, some people drive their daily pretty aggresivly. I know toh my STI getting kn the freeway and backroads i dig into the car. Both systems function very well. And either one is better than nothing
@okthen8445 3 роки тому
Smeedia your right. Driving habits are also a thing to consider as well. I always forget that because I kind of baby my sti lol and yea both are better than nothing. To be honest I got dual catch cans because it’s cheaper and it’s better than nothing even for my stock sti lol I figured out the rest after doing research AFTER installation lol
@alexpeguero38 3 роки тому
Sum Guy have you noticed any oil in your catch cans given that your stock?
@okthen8445 3 роки тому
Alex Peguero absolutely. There was a decent little puddle sitting in the manifold when I had the throttle body off well. There was also oil in the intercooler. I flushed it with acetone and when I drained it out the acetone was a gold color almost like brake fluid
@alexpeguero38 3 роки тому
Sum Guy wow
@kristinamartinez3327 3 роки тому
I have a question for people with catch can setups on the “PVC” side. Do you run a dual check valve setup so you are not pushing boost into the catch can from the intake manifold.
@Smeedia 3 роки тому
That was my concern with my cans, but I do believe there is a secondary check valve with most kits
@kristinamartinez3327 3 роки тому
Ok, I had a Mazdaspeed3 before I got my 2020 WRX. In the Mazda I had a secondary check valve because there was boost going into the tank and the hoses would leak under the pressure. So I may do the same for the WRX.
@roninlaw9824 Рік тому
Appreciate the video. Just saw it, sold on both setups for reliability. So is an air oil separator, worthless without the coolant connections?
@Smeedia Рік тому
Not worthless but thr coolant connections help to keep moisture from building up by keeping the AOS the same temp as the engine
@TURMYTE 3 роки тому
My car has neither. I’ve had the TMIC off numerous times, and luckily not a smudge of oil in the IC or throttle body. Guess I’ve been very lucky with that so far. I can’t believe the previous owner never installed one based on everything else they did when they built the motor. But I do plan on getting one of the Grimmspeed AOS if they ever become available again. Not many other options for 03..
@Smeedia 3 роки тому
I would advise any, literally any other AOS
@clutchboi4038 Рік тому
could be that your pcv is plugged and you're simply living with crank case pressure.
@ty_nichols 3 роки тому
So I bought my 2017 wrx used (52k miles) is it still worthwhile to install one now? Previous owner never ran one.0
@Smeedia 3 роки тому
Yes still worth it 🙏
@tarandeiniol3092 2 роки тому
Thank you for explaining good video
@Smeedia 2 роки тому
Anytime 🥳
@aaronmcilwaine3537 5 місяців тому
Which one is better for colder weather.
@rupertjones917 2 роки тому
Do you have experience with the grimmspeed aos. It looks totally different from the iag and few hundred less. Does it do the job?
@Smeedia 2 роки тому
It's honestly awful, I like grimmspeed but that's one product I wouldent suggest to anyone
@pw85___ 2 роки тому
OCTurboJoe had some interesting videos and looked into it and here you are with the same info, 💪🏾
@Smeedia 2 роки тому
Joe's awesome! 🙌🔥
@th3savagerandy403 2 роки тому
I’ve been slightly modifying my fiancé’s fb20 Impreza hatch. Is either of there recommend for a NA engine?
@Smeedia 2 роки тому
For that I wouldent worry about snagging one. We've got a 17 impreza as well and don't use an AOS ON IT
@consentofthegoverned5145 8 місяців тому
The coolant connection COOLS the vapor so it will condense out the water and volatile organics, leaving cleaner, drier air to go the to the manifold.. The gases coming out of the crank case are much hotter than the coolants system. You either want the catch can or OAS out in front of the radiator for cool airflow, or cooled by the cold output of the radiator.
@arod7130 3 роки тому
Do you run the IAG AOS competition? If so, I get mixed answers when it come to tuning with an AOS that dumps crank pressure to the atmosphere. Any feedback?
@Smeedia 3 роки тому
I do not, my car did not meet the criteria fr thr comp series. IAG has a chart on their website for when to use what AOSZ
@arod7130 3 роки тому
@@Smeedia thanks! Yeah I've seen that chart, and it recommends a tune but many local shops/pro tuners near me dont think it is necessary specially if staying relatively stock as I am with my '14 hatch STI
@jdmking4776 3 роки тому
Ooooo EG33. Love that engine.
@Smeedia 3 роки тому
Yesssss 😁😁😁
@jeffgrantIS350 2 роки тому
When Adding a catch can to my 007 IS350 Lexus that's both DI and port injection will I be removing the EGR Valve? I do believe that the system is under pressure and need to use a higher quality air tight can system.
@Smeedia 2 роки тому
No you shouldn't need to tie into the EGR, just the PCV
@thomaswahahauw560 11 місяців тому
What do you think about grimmspeed aos ??
@vinny.senpai 3 роки тому
Hey Tanner! Since this is a longevity mod, do either of these systems void Subaru's warranty? I have a bone stock '18 WRX.
@Smeedia 3 роки тому
Yes unfortunately they both will 😖
@McRaesadventures 3 роки тому
Depends on your dealership, the subaru dealership near me recommends them, and they keep warranties on stage 2 cars.
@19000000ify 3 роки тому
So i have been tossing around the idea of getting a AOS but I've heard it voids your warranty? Do you know if that is true?
@Smeedia 3 роки тому
That is true. Altering the PCV system will void the warranty
@Ravenlion13 3 роки тому
So when is it worth getting one of these in the first place? I have an 09 wrx but with a ej20x, not modded yet. Should I get one?
@Smeedia 3 роки тому
At any point, does not matter the milage or engine but the sooner the better IMO
@3obardThawn3 Рік тому
Thanks for the video...
@Smeedia Рік тому
🙏🙏🙏🙏
@lrblouie Рік тому
Thought - since the "oil" in the catch can was "liquid-y" and possibly having more than just oil, having that go back into the system doesn't sound as good of an idea in case it contaminates the engine oil (making the catch can a better option?)?
@LightningFast240 7 місяців тому
I just want to know if the air oil separator 100% takes the oil out of anything going to the intake. If not so i can just keep venting to atmosphere and forget about it
@boostedbuddah7784 3 роки тому
Looking into catch cat vs aos for my 2020wrx. My friend said everything is garbage compared to iag v3 street series but really don't wann spend 439$ for an aos. Would like to just go with catch can as long as it grabs the residual oil. I don't mind servicing. And then should I be going with single or dual? Thoughts?
@Smeedia 3 роки тому
I'd suggest the Radium duel can set up, works very well/looks good and easy to service 🙏
@5W1M 3 роки тому
+1 for radium dual catch cans. They’re pricey but are great. The iag aos is probably the best aos on the market. I have an iag aos v3 on my 2018 wrx rn and I’m thinking of switching to the radium dual setup since they are better than an iag aos for keeping contaminants out of the engine. On phatbotti’s website he ranks the efficiency of each and he said from best to worst at keeping contaminants out of the engine is radium catch cans, iag comp aos, then iag street aos. Only benefit to having an aos over catch cans is that they’re maintenance free. Also if you live in a cold climate, definitely get the catch cans because all aos’s suffer from sludge buildup.
@carlnewstrand9408 3 місяці тому
Great information. But what about diesel engines. I have not heard of catch cans with diesels. They have much higher compression than gasoline engines. Thanks.
@Deathbylove420 3 роки тому
Hey I was wondering if I were to do this on a 2004 WRX and install 1 catch can for now on the driver side it would connect to the piece mounted to the intercooler and then the crankcase vent?
@Smeedia 3 роки тому
For the cross over tube?
@Deathbylove420 3 роки тому
@@Smeedia I guess I should be asking how would you install the 1 can that BRZ had on the driver side but on a EJ motor. I should've said from the metal pipe mounted on the Intercooler to the drive side valve cover vent?
@loganramos6900 2 роки тому
I kinda like the idea of catch cans since from what ive seen from other research on catch cans they catch water and other junk that isnt oil and make sure its not going back in the oil, which in turn might help keep oil cleaner? Idk about that maybe not noticeable but in theory it should. Idk thats just my thoughts
@Smeedia 2 роки тому
Your spot on, I just put a set of catch cans into my BRZ today
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