Catch cans....are they really worth it.

[mrshoulders]

Hey guys have a question, does having a catch can actually add any power via tune? Does it make the engine life last longer? I am at 90k, been tuned by Justin Brasil on e25 since around 25k miles. What would have been different had I got a catch can then.

[Jonb82]

Sent while probably pooping

[distortion]

No power, should keep intake and such cleaner. Seems like an odd question...?

[mrshoulders]

My friebds and I have a discussion if it's worth getting one. So I am just curious on the facts of its purpose

[Jega]

https://youtu.be/PWz6vCnJ4CA

[Cataphract_40]

It's speculated that catching the oil vapor instead of allowing it to enter the cylinders prevents it from lowering the effective octane of the fuel/air mixture. The rationale is this: oil vapor, if allowed to burn in the cylinder, will ignite sooner than the fuel/air mix, which can lead to knock.

No idea if this is true or not. However, catch cans absolutely DO have a benefit for DI engines like ours: preventing the oily crud from building up on intake valves over time.

[g00s3y]

Originally Posted by mrshoulders My friebds and I have a discussion if it's worth getting one. So I am just curious on the facts of its purpose

Seems like you need to get new friends.

And with all the threads on OCC's, you had to make a new one to ask for info that has been posted many times before?

[eliwwjd]

Originally Posted by mrshoulders Hey guys have a question, does having a catch can actually add any power via tune? Does it make the engine life last longer? I am at 90k, been tuned by Justin Brasil on e25 since around 25k miles. What would have been different had I got a catch can then.

My recommendation is instruct yourself of what is really a oil catch can and its purpose before you post here because you are going to get groaned. It is not a power tuning mod.
It is to filter blow by oil mist and other gunk that could reach your engine intake and affects you from having a clean combustion or cleaner gases into your engine.
Here i a link with some info
Oil Catch Cans | Everything you need to know and more!

All i did was search on google and bam! this link came up. Just trying to help you so next time you don't get groaned

[Jonb82]

Sent while probably pooping

[NCspecV81]

I just ran a hose straight to ground. I didn't run a catch can for the longest time. I'll also be going back to this method as well.

[mrshoulders]

I guess I am looking for quantifiable proof in performance like better gas miliage, hp, or anything. All I see is "emptied a ton of oil from my catch can posts"

[Jonb82]

Originally Posted by mrshoulders I guess I am looking for quantifiable proof in performance like better gas miliage, hp, or anything. All I see is "emptied a ton of oil from my catch can posts"

So you are beating a dead horse. I started out making jokes. Now I'm going to be a dick. You have had your car tuned for how long? So either you are a fucking premenstrual-blood-quiff that tunes and upgrades your car with out reading and researching on the what's and whys. Or you are a fucking backwards-incest-having-butt-fucking-ignorant-jenkum-huffing-person. The fact that you just wrote that a "catch can emptied a ton of shit" tells you of what they are catching and not letting back into the engine. I apologize for what you just read. But your wanting to be spoon fed after so long of owning the car has pissed me the fuck off for some reason. Actually I'm not sorry. Use google


Sent while probably pooping

[mrshoulders]

Lol yet you still can't show me numbers that backs anything up

[Cataphract_40]

Originally Posted by mrshoulders Lol yet you still can't show me numbers that backs anything up

Your tone indicates that you already had your mind made up before you even started this thread.

So why did you?

[mrshoulders]

Because if it actually shows concrete evidence then I'll get one. Kind of like a tune, you clearly see a difference. Catch can I have yet to see any performance evidence

[eliwwjd]

Dude some people here are letting it pass but you are still here are arguing about proof of performance. Plain and simple! don't buy one and call it a day!
Next time take some time to read how an engine functions and its combustion process, before you demand proof of performance, some things are just common sense if you know about the subject.

[Jonb82]

"But I need numbers" so the reason there are no numbers is because people don't have the time or money to take two cars, run them identical miles with and without a catch can. Then take off the IM and inspect the valves. Common sense, which you are obviously lacking, will tell you the "tons of shit in the catch can" never made it back into the engine. Yes that was a big fucking run on sentence. Don't care. So again pretend you have common sense and put 2+2 together, and realize that a catch can works. If your brain can't handle that, or you have doubts, just shut the fuck up and go on your marry way. Btw I don't know you, and you might be an alright guy. But this post and your reasoning is what I'm attacking. Hope you have a great day.


Sent while probably pooping




Sent while probably pooping

[mrshoulders]

Lol not taking anything personal. I guess at the end of the day I am curious if ovee a period of say 60k miles, woukd my car perform any different having a catch can and not. I understand what it does and how it works. But does having that "shit" in the engine affect my auto x times, 1/4 times, roll racing outcome.

[eliwwjd]

Dude seriously! you must be joking. Cmon this is like a say we have locally" dude you are looking for a 5th leg on a cat". Seriously don't buy one if it doesn't convince you, Jesus!

[mrshoulders]

Originally Posted by eliwwjd Dude seriously! you must be joking. Cmon this is like a say we have locally" dude you are looking for a 5th leg on a cat". Seriously don't buy one if it doesn't convince you, Jesus!

Dude! It's just a discussion, relax. You still can't answer me

[monkey.bones.007]

Originally Posted by mrshoulders Dude! It's just a discussion, relax. You still can't answer me

Don't buy one and be the guinea pig. Our job is not to provide you with proof or evidence something works or doesn't. Pleasant regards and have a nice day.

crapatalk it sucks for free

[eliwwjd]

Originally Posted by mrshoulders Dude! It's just a discussion, relax. You still can't answer me

Oh im relax, what surprises me is how you change things around now by saying its just a discussion when on the first post you are asking a very noobish question that you should of read first and now are arguing. Question is already been answered, the problem is that your brain is not capable of understanding or simple, you are on total denial of what has been informed to you and want proof of something that is common sense. For the last time , don't buy one and have piece of mind since you do not have proof. Have a wonderful evening and have peace in your mind.

[5doorsoffury]

Originally Posted by mrshoulders Dude! It's just a discussion, relax. You still can't answer me

You were a faggot back im the day and im glad to see you haven't changed.

Better to remain silent and be thought a fag than to speak and remove all doubt. Thankyou for speaking.
Also fuck photobucket.

[mrshoulders]

Lol

[Jonb82]

Lol


Sent while probably pooping

Can we please ban this guy?!


Sent while probably pooping

[mrshoulders]

Ok so still no real answers. Gotcha

[monkey.bones.007]

Originally Posted by mrshoulders Ok so still no real answers. Gotcha

Yup, nothing to see here at all. Just keep hipstering on.

crapatalk it sucks for free

[tmillner]

Originally Posted by mrshoulders Lol not taking anything personal. I guess at the end of the day I am curious if ovee a period of say 60k miles, woukd my car perform any different having a catch can and not. I understand what it does and how it works. But does having that "shit" in the engine affect my auto x times, 1/4 times, roll racing outcome.

I'll play along. You will be leaving performance on the table not having one over a period of time. I went a good 70k without one with a good 20k of that on a bnrs4 turbo on e85. Valves looked pretty bad when engine was torn apart. Wish I ran one earlier.

Just my opinion

Sent from my SM-G935P using Tapatalk

[mrshoulders]

Originally Posted by tmillner I'll play along. You will be leaving performance on the table not having one over a period of time. I went a good 70k without one with a good 20k of that on a bnrs4 turbo on e85. Valves looked pretty bad when engine was torn apart. Wish I ran one earlier. Just my opinion Sent from my SM-G935P using Tapatalk

Thank you for a sensible answer.

[g00s3y]

OP is clearly the type who complained about having to buy HPFP internals "because it doesn't increase HP"...

fucking idiot

[speed23]

IIRC, cobb reported they were able to run more timing after cleaning intake valves. Catch can keeps valves cleaner. Not going to try to find thread, but it was a fact. That said, I bought a catch can, installed and then uninstalled due to cold weather issues, so not a big catch can proponent - at least in cold climates.

[ABOSWORTH]

Originally Posted by speed23 IIRC, cobb reported they were able to run more timing after cleaning intake valves. Catch can keeps valves cleaner. Not going to try to find thread, but it was a fact. That said, I bought a catch can, installed and then uninstalled due to cold weather issues, so not a big catch can proponent - at least in cold climates.

Yeah, I've read about cold weather issues as well, which has me very hesitant to install one. I'm in Vermont and it gets pretty cold here. I don't want to have to worry about it in the winter so I just haven't bothered with it. Definitely need to clean my valves soon though. I'm at 78k and have not done this yet. :

[sharksinspace]

OP has AIDS.

[Carskick]

Against my better judgement, I'll participate.

I have gone back and forth on the catch can. I still don't have one, but I do plan on one eventually. As other's have said, it's a preventative to keep the intake valves & tract clean. That's really it. I've talked to people with MS3s with over 160k miles who have never even cleaned the intake valves and have no OCC.

The dealer chemically cleaned my valves at 60k, I'm currently at 78k. At some point, I'll need a clutch. When that happens, I'll probably have Mazda Medic in Tampa do a bunch of stuff at once, including clutch, manual intake valve cleaning, install catch can, any other valve-train work needed, and possibly Fuel Injector seals. As of now, my dirty valves don't seem to be causing any trouble, so I'll leave it at that for now.

Remember, not every engine mod directly adds power, but cleaner valves will flow better and an OCC should theoretically keep them cleaner longer, preventing power loss. If you take apart your engine every 10k to clean out everything, you probably don't need an OCC. If your valves are already all gunked up, an OCC may not provide much benefit since the "damage" is already done.

[Pu Manchu]

Mrs Houlders, 80% of your mods don't increase power, they just facilitate, now stop being a faggot and fuck off.

[mrshoulders]

Ok so if I don't clean valves and install catch can I will have some loss of power correct? My question is how has this not been tested and tanginably proven?

[sharksinspace]

Feel free to buy a second car for comparison, clean both sets of valves to a base starting point, install a can on one of them and then run both to 100k miles in order to perform whatever arbitrary buttfucking performance tests you're so hung up on seeing the results of. Or if common sense isn't enough to tell you that carbon buildup in the engine is bad, just go ahead and keep running without an occ.

[mrshoulders]

Originally Posted by sharksinspace Feel free to buy a second car for comparison, clean both sets of valves to a base starting point, install a can on one of them and then run both to 100k miles in order to perform whatever arbitrary buttfucking performance tests you're so hung up on seeing the results of. Or if common sense isn't enough to tell you that carbon buildup in the engine is bad, just go ahead and keep running without an occ.

So what you're saying is there is no actual evidence of power loss or gain correct?

[sharksinspace]

I've never bothered to look for a quantifiable POWER gain because it doesn't take a rocket scientist to know that valves that are sticky, or that won't fully seal, because of buildup will have a detrimental effect on driveability.

What oil do you run? Rotella? PP? Mobil 1? Royal Purple? Or just the cheapest shit you can find at Walmart because it doesn't give you a measurable power gain? You are coming at this from the wrong angle.

[mrshoulders]

I use pp, but see that doesn't require me to pay extra and no headaches (to empty) out all the time. It's just kind of crazy there isn't actually tests done or something to show power loss/gain.