N55 Oil Catch Can?

[11N55]

I am still learning about these cars, after reading a lot I learned that adding an oil catch can should help reduce carbon build up and in the long run extend the life of the engine. I searched but all I found was N54 specific oil catch cans, any word on N55 specific ones? Thanks

[JB135MDCT]

BSH is still drooling over AR's DP

[KcN55]

Originally Posted by 11N55

I am still learning about these cars, after reading a lot I learned that adding an oil catch can should help reduce carbon build up and in the long run extend the life of the engine. I searched but all I found was N54 specific oil catch cans, any word on N55 specific ones? Thanks

+1

[JHZR2]

They are not working on it per my call to them. They are waiting on getting a bunch of other products through first, and they need an N55 in the shop too...

[shockin330i]

subscribing

[11N55]

Bump, its been a while wondering if anyone is planning on building one

[JHZR2]

The best anyone can do is keep calling the main companies that have N54 catch cans and ask for one for an N55. If a fire isnt lit, other projects will take precedence.

[11N55]

Originally Posted by JHZR2

The best anyone can do is keep calling the main companies that have N54 catch cans and ask for one for an N55. If a fire isnt lit, other projects will take precedence.

I like this idea!

[Swadeness]

Anybody have any new info on this? It doesn't seem like any company has made one for us yet. How feasible would it would be to build or retrofit one for an N55?

[Daniel135i]

Before you go purchasing parts just for the sake of purchasing because its there....

Oil catch cans, although beneficial, are realy only doing any service in a modified engine and will have little to no recordable benefits on an otherwise stock or mildly modified motor.

Just my .02, but it comes from experience with multiple engines and oil catch cans.

It has led me to believe that unless your altering the internal pressure by changing the vacume inside the valve cover, or you see substantial blow by from the stock diverter valve (stock DV is defective) its not worth the money. The stock diverter valve should be more than capable of keeping oil out of the system, unless the ones BMW uses stock are easily broken????

[Dackelone]

What about this Maan Provent OCC. I am gonna look more into it. We can thank Turbolader for bring it to our attention. There ARE some advantages in using an OCC - namely less carbon buildup on the intake tract and valves. In time we shall see which design is best.

Originally Posted by Turbolader

Looks like I definitely need to order my Maan Provent

http://www.mann-hummel.com.sg/EN/ind...ProVent-en.pdf


(Lingenfelter uses this for their rebranded catch can). I find most catch cans to be gimmick's but this one is built by by the fine people that make our filters, and, it actually has something inside to precipitate the oil vapor out of the intake manifold.

[Daniel135i]

Well, i dont know much about the injection of this engine... As I have mainly delt with the norm. In which case carbon buildup is a non issue unless you run leaded fuel lol.

To each his own. Hope they work.

[Dackelone]

Originally Posted by Daniel135i

Well, i dont know much about the injection of this engine... As I have mainly delt with the norm. In which case carbon buildup is a non issue unless you run leaded fuel lol.

To each his own. Hope they work.

The main problem is we have direct injection (D.I.) meaning the fuel is jected right into the combustion chamber/piston. So... oil fumes recirculated thru the pvc - seem to built up the sludge and carbon onto the intake valve.

In a nromal motor fuel is sprayed onto the intake valves and washes away any carbon buildup. Most traditional carbon buildup is caused by leaking injectors - driping fuel onto hot intake valves.

[Dackelone]

What about this Maan Provent OCC. I am gonna look more into it. We can thank Turbolader for bring it to our attention. There ARE some advantages in using an OCC - namely less carbon buildup on the intake tract and valves. In time we shall see which design is best.


Quote:
Originally Posted by Turbolader

Looks like I definitely need to order my Maan Provent

http://www.mann-hummel.com.sg/EN/ind...ProVent-en.pdf


(Lingenfelter uses this for their rebranded catch can). I find most catch cans to be gimmick's but this one is built by by the fine people that make our filters, and, it actually has something inside to precipitate the oil vapor out of the intake manifold.


I got an email back from a German dealer that sells the ProVent 200 OCC. 130 euros is their price. They also sent me a pdf on thier OOC design.


Technischer Leiter
Elsässer Industrietechnik GmbH
Carl-Zeiss Str 3
71154 Nufringen

Tel +49 7032 9604 113
Fax +49 7032 9604 22

[Daniel135i]

Originally Posted by Dackelone

The main problem is we have direct injection (D.I.) meaning the fuel is jected right into the combustion chamber/piston. So... oil fumes recirculated thru the pvc - seem to built up the sludge and carbon onto the intake valve.

In a nromal motor fuel is sprayed onto the intake valves and washes away any carbon buildup. Most traditional carbon buildup is caused by leaking injectors - driping fuel onto hot intake valves.

Right, Understand... So how does an "OIL" catch can help with the carbon buildup? Is it proven that the stock check valve is leaking oil by the valve and into the intake tract? If so, thats shitty on BMWs side, id expect that from my SRT-4, not from BMW.

Im just saying, people should verrify that the oil is fouling the valves from blowby on the crank case before shelling out on cash for an item they may not need. And if even that is the case, replacing the valve would be the better bet to eliminate blow by, cheaper too. Thing with engine mods is the more you have, the more problems you will have. Better safe than sorry later.

[Swadeness]

Originally Posted by Daniel135i

....Is it proven that the stock check valve is leaking oil by the valve and into the intake tract?

Yes, at least on the N54 motors. Guys w/out an OCC have found oil in the bottom of the intercooler and tubes. It seems reasonable that this oil could be contributing to the carbon build up. Not sure if anybody has seen this oil for the N55 though.

[Dackelone]

Originally Posted by Swadeness

Yes, at least on the N54 motors. Guys w/out an OCC have found oil in the bottom of the intercooler and tubes. It seems reasonable that this oil could be contributing to the carbon build up. Not sure if anybody has seen this oil for the N55 though.

Plus... a thin layer/film of oil will also lower the effientcy of your intercooler as well. It is a loose - LOOSE.

[JB135MDCT]

bump

[Itsquick]

I feel an OCC can not hurt the N55 setup. A good OCC can help most direct injected engine, even have put them homebuilt aircraft, non boosted engines.
The setup I installed costs less than $300.00. Cheap help for a nasty problem down the road, not to say it is a cure all, but it can't hurt!
http://www.1addicts.com/forums/showthread.php?t=549044

[RealityDesign]

Originally Posted by Itsquick

...but it can't hurt!

I would argue quite the opposite. It can in fact hurt, and may actually not help anything while it's hurting. Here's my two cents, and probably get some shit for it, but whatever...

I had a BSH OCC and removed it after 3k miles for a few reasons. Mainly, because unlike the stock PCV return, the BSH OCC was restrictive and changing the pressure in the crankcase. Vacuum is GOOD, positive pressure is BAD, generally speaking, and the OCC was contributing positive pressure to the crankcase. In short, no one knows exactly how bad this positive pressure could be, but there is a definite risk of it destroying the turbo seals much more quickly than with the stock setup.

Aside from that, it caught very little oil. I am also not convinced that the carbon build-up on the intake valves is from this oil. Honestly, what little oil there is just gets caught in the FMIC anyway. And, FWIW, after running no OCC for 15k miles, I had almost no oil in my FMIC at all...just a film.

So, my opinion...don't fix it if it aint broken, or at least until you can prove it's broken. It seemed like running an OCC could cause as much (or more) damage as not running one. I'd rather just use my FMIC as my catch can and clean my valves once during the lifetime of my car than find out down the road that my turbo seals went bad because of my catch can.

And now I expect everyone to disagree with me, so I'll escape from this thread while I can .

[JB135MDCT]

Originally Posted by Itsquick

I feel an OCC can not hurt the N55 setup. A good OCC can help most direct injected engine, even have put them homebuilt aircraft, non boosted engines.
The setup I installed costs less than $300.00. Cheap help for a nasty problem down the road, not to say it is a cure all, but it can't hurt!
http://www.1addicts.com/forums/showthread.php?t=549044

Do I get any credit for bumping or am I stupid not to search your awesome DIY?

[Itsquick]

Originally Posted by JB135MDCT

Do I get any credit for bumping or am I stupid not to search your awesome DIY?

You are da MAN!