Oil catch can

Major Kong

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Sorry Kong, with all respect, I’m done. Was not trolling but for whatever reason I cannot convince you that the crankcase will never develop more than a minor increase in pressure. For whatever reason we are not communicating in a way each other can grasp and both believe the other side is trolling.
May have to re-evaluate my opinions
*ding*
well that didn't take long
I'll be spitting crow feathers on this one for some time
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Major Kong

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*this is space is reserved for creative thought
using the blow-by / boost equilibrium scenario
I also wonder this.......
crankcase fresh air supply
post MAF entry?
anyways when all pressure balances
would fresh air supply flow reverse as well or is a check in place?
if not
could blow-by reverse flow to the fresh supply point of entry?
thereby again finding it's way to turbo suction
and then on to part of the boost?
not a statement but a question
Kong replies to Kong
split personality perhaps
anyways found my answer
case flow can reverse through fresh air intake
 

Meanderthal

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Kong replies to Kong
split personality perhaps
anyways found my answer
case flow can reverse through fresh air intake
Okay, I’m still lost about what your decision is about this breather thing that you found. BTW, thanks for taking an hour of my Saturday night watching videos about crankcase pressure and PCV systems. It was interesting though.

I will say in the Subie tuner video, the guy did say that when he saw higher crankcase pressure he was expecting to see oil being pushed out of the the crankcase seals, much as I had mentioned earlier. I don’t remember when exactly that was in the video but it was affirming to hear that.

Is the Ford system similar to the Subaru system in that there is a connection to the intake tract that will pull a vacuum in the crankcase?
 

Osco

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If I had the money to get into improvements in my engine I would have started with the 4 banger.
I would have looked at improving the turbo by porting and polishing it ???
Or a larger turbo ???
Then a true performance exhaust not the bolt on stuff in the back end, custom wrapped headers ???
Then dyno time and a proper retune of the ECM.
Motor heads, Am I even close ??
I figure if I did stuff like this to my three banger I’d break it.
 

Mark S.

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Sounds like you do maintenance to the 10th power, plus you must have good engines to start with.
I suspect use pattern is also a major component. You don't put those kinds of miles on a vehicle unless it's driven... a lot. Paradoxically, the more you use mechanical devices like engines the longer they last (from a miles driven perspective). In addition, someone who drives that much must rely on their vehicles, so they tend not to beat on them.

Me old Gaffer was an over-the-road driver for many years. One of the companies he drove for assigned trucks to drivers, and one of the trucks he drove turned over 1 million miles without any major work on the engine. That engine now sits on a stand in the lobby of the headquarters for Cummins diesel engines. The company requested the engine for a tear down inspection and invited Pop for a ceremony after they put it back together and set it up in the lobby. Legend has it that engine could've gone another half-a-million miles without a rebuild.

In short, if you perform required maintenance religiously, drive it often, and don't beat on it, you can get surprisingly high mileage from your vehicles.
 


Mark S.

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If I had the money to get into improvements in my engine I would have started with the 4 banger.
I would have looked at improving the turbo by porting and polishing it ???
Or a larger turbo ???
Then a true performance exhaust not the bolt on stuff in the back end, custom wrapped headers ???
Then dyno time and a proper retune of the ECM.
Motor heads, Am I even close ??
I figure if I did stuff like this to my three banger I’d break it.
You would probably want to start with internals. The 2.0L is durable, but it's not really meant to reliably produce more than 300 hp. It used to be you could count on "overengineering" when hopping up the power on an engine, but I don't think that's the case any longer. Back in the day there was a lot of guesswork about the kinds of stresses engine internals saw, and manufacturing tolerances were much greater. It made sense to spec parts able to handle stresses far greater than assumptions. That often resulted in an engine that could handle multiples of the expected power output.

Today, internal engines stresses are very accurately modeled with computers, and manufacturing techniques allow parts built to very specific tolerances. That allows manufacturing of parts able to handle just the amount of stress required. Making parts able to handle higher stresses than necessary costs money, so manufacturers simply don't do it any more.

In short, if I were looking to boost power output for a 2.0L EcoBoost so that I didn't have to worry about punching holes in the block every time I stepped on the gas, I would start with internals like pistons, con rods, bearings, timing chain, etc.
 

V8 Yankee

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If I had the money to get into improvements in my engine I would have started with the 4 banger.
I would have looked at improving the turbo by porting and polishing it ???
Or a larger turbo ???
Then a true performance exhaust not the bolt on stuff in the back end, custom wrapped headers ???
Then dyno time and a proper retune of the ECM.
Motor heads, Am I even close ??
I figure if I did stuff like this to my three banger I’d break it.
I follow other site where racers have done what u mentioned and it seems the 1.5 can handle up to 100 more hp with ease, at least short term. Long term milaege will be sacrificed and forget about any warranty work. Programming alone will get 30 to 50 hp depending on the settings. You would have a screamer for sure, the power to weight ratio with even 50 extra hp would put the Bronco in the upper class of CUVs. Be fun to try it out.
 

Major Kong

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Okay, I’m still lost about what your decision is about this breather thing that you found. BTW, thanks for taking an hour of my Saturday night watching videos about crankcase pressure and PCV systems. It was interesting though.

I will say in the Subie tuner video, the guy did say that when he saw higher crankcase pressure he was expecting to see oil being pushed out of the the crankcase seals, much as I had mentioned earlier. I don’t remember when exactly that was in the video but it was affirming to hear that.

Is the Ford system similar to the Subaru system in that there is a connection to the intake tract that will pull a vacuum in the crankcase?

" BTW, thanks for taking an hour of my Saturday night watching videos about crankcase pressure and PCV systems."

beats re-runs of I Love Lucy

"Okay, I’m still lost about what your decision is about this breather thing that you found."

Interesting link makes a good case for breather
https://dsportmag.com/the-tech/quick-tech-the-benefits-of-lowering-crankcase-pressure-part-1/

"Is the Ford system similar to the Subaru system in that there is a connection to the intake tract that will pull a vacuum in the crankcase?"

I can't answer that.
digging for info info is frustrating to say the least
not a widely covered topic
 

Meanderthal

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" BTW, thanks for taking an hour of my Saturday night watching videos about crankcase pressure and PCV systems."

beats re-runs of I Love Lucy

"Okay, I’m still lost about what your decision is about this breather thing that you found."

Interesting link makes a good case for breather
https://dsportmag.com/the-tech/quick-tech-the-benefits-of-lowering-crankcase-pressure-part-1/

"Is the Ford system similar to the Subaru system in that there is a connection to the intake tract that will pull a vacuum in the crankcase?"

I can't answer that.
digging for info info is frustrating to say the least
not a widely covered topic
I would expect every manufacturer to use a system that pulls any gasses or vapors from the crankcase and into the intake by using the vacuum created in the intake, because of emissions regulations.

Adding a breather, would create a path for that vacuum to pull outside air through the crankcase. A filter on the breather like the one you found would be a good idea to keep airborne contaminants out of the crankcase and thus the oil. Essentially the breather system could breathe both ways but from memory the breather you found had a check valve, which I’m guessing keeps air from being pulled into the crankcase.

The question then becomes, is it better for the crankcase to be under higher vacuum (no breather) or nearly zero vacuum (with breather). The article you linked to favors higher vacuum and the Subaru tuner video showed that Subaru engines were pulling more vacuum at higher loads and rpms. This would suggest that, unless there were some sort of mechanical failure, the breather would never breathe because the crankcase is always under some level of vacuum.
 

Major Kong

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I would expect every manufacturer to use a system that pulls any gasses or vapors from the crankcase and into the intake by using the vacuum created in the intake, because of emissions regulations.

Adding a breather, would create a path for that vacuum to pull outside air through the crankcase. A filter on the breather like the one you found would be a good idea to keep airborne contaminants out of the crankcase and thus the oil. Essentially the breather system could breathe both ways but from memory the breather you found had a check valve, which I’m guessing keeps air from being pulled into the crankcase.

The question then becomes, is it better for the crankcase to be under higher vacuum (no breather) or nearly zero vacuum (with breather). The article you linked to favors higher vacuum and the Subaru tuner video showed that Subaru engines were pulling more vacuum at higher loads and rpms. This would suggest that, unless there were some sort of mechanical failure, the breather would never breathe because the crankcase is always under some level of vacuum.
"The question then becomes, is it better for the crankcase to be under higher vacuum (no breather) or nearly zero vacuum (with breather)."


"The question then becomes, is it better for the crankcase to be under higher vacuum (no breather) - the breather I referenced and as you mentioned above has a ball check. Gases permitted to leave with a one direction flow only. In essence it's still an oil cap
with an added feature of allowing expelled case pressure. So case vacuum remains intact when under neg pressure values.
So, under those vacuum conditions it could be said it has a "(no breather)" status, only being active under positive pressure conditions.


or nearly zero vacuum (with breather)." - with the breather ball check in place the breather does not short circuit the PCV system under vacuum. The breathers functionality only occurs during a positive case pressure situation.
 
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Osco

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That engine now sits on a stand in the lobby of the headquarters for Cummins diesel engines. The company requested the engine for a tear down inspection and invited Pop for a ceremony after they put it back together and set it up in the lobby. Legend has it that engine could've gone another half-a-million miles without a rebuild.

In short, if you perform required maintenance religiously, drive it often, and don't beat on it, you can get surprisingly high mileage from your vehicles.
Buddy of mine took his Toyota van to 998,000 (The engine was the flat opposed design)then retired it to grocery getter duty cause the top speed was now 62 mph wide open.
He first took it to Toyota, see if they wanted it. It was going through a redesign.
He got a Toyota Hat and an Ink pen. :’P
 

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adding my conjecture
air/oil separator in essence is a catch can "sans can"
so in essence there is currently one in place
if you can accept that reasoning
an option which I've taken is to add a catch can
downstream of the separator
still manages to pick up what slips past the separator
This is why, when I bought my 2017 Escape, I bought the base model (S) that wasn’t an Ecoboost engine. As far as I know, it’s the last non-eco boost engine Ford made. I added leather seats, an aftermarket remote start, and that’s all I needed as far as non-essential options at the time.
 

V8 Yankee

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Sorry Kong, with all respect, I’m done. Was not trolling but for whatever reason I cannot convince you that the crankcase will never develop more than a minor increase in pressure. For whatever reason we are not communicating in a way each other can grasp and both believe the other side is trolling.
Hello both, kind of late in my response to this. I installed a catch can about 6 months. It's a UPR Brand, high quality and looks great. After 6 months of use the can has captured approximately 3 to 4 tablespoons of oil. That shows how good the built in system works. The can will capture more if you drive your BS hard, tow a lot, carry a lot of cargo, etc. For light footed driving like mine its for show. Does look good though. Hope it helps.
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