[GreekboyD]

Originally Posted by Mark M

After about 7,000 miles I opened up my catch can last weekend. I was very surprised to find there was not much oil collected at all.

Possible conclusions:
1. The catch can may not do a great job on diesels, or
2. The diesel engine does not flow much oil soaked vapor, or
3. The primary source of our oil pooling is oil escaping past the turbo seals.

I'll admit the majority of my driving is all light duty commuter miles with the occasional blast of acceleration.

Hmmm... Strange. After 300 kms for me and I already have a a nice coating and enough collected to concern me if I didn't have the can on. Almost all of that driving was on the highway at speeds of 120-160 km/hr.

[Nushibo]

Originally Posted by GreekboyD

Hmmm... Strange. After 300 kms for me and I already have a a nice coating and enough collected to concern me if I didn't have the can on. Almost all of that driving was on the highway at speeds of 120-160 km/hr.

The can will coat but after that the pooling isnt too much. After 6k it seemed a empty. Looking at 135i build he collect maybe three times more than me in a short amount of time. Ill be redoing the setup before summer is over.

[GreekboyD]

Originally Posted by Nushibo

The can will coat but after that the pooling isnt too much. After 6k it seemed a empty. Looking at 135i build he collect maybe three times more than me in a short amount of time. Ill be redoing the setup before summer is over.

That's the set-up I've used.

[Nushibo]

Originally Posted by GreekboyD

That's the set-up I've used.

Your setup along with his should be so far the one collecting the most oil. Let us know in like 6k

[GreekboyD]

Originally Posted by Nushibo

Your setup along with his should be so far the one collecting the most oil. Let us know in like 6k

For sure man.

[135i_vs_]

Originally Posted by GreekboyD

That's the set-up I've used.

Glad my setup is working

I also filter/collect a good amount of blow by.

[GottaBeKD]

Originally Posted by 135i_vs_

Glad my setup is working

I also filter/collect a good amount of blow by.

I typed in a long post the other day and the app failed to post it. Frustrated I did not redo it.

I have 400kms on with the same catch can setup over the last 2 days and also have a coating on the inside.

Lots of highway driving for me. I should be at or over 1000 kms by next week so we'll how much collects by then.

Fuel mileage had been pretty decent mind you I was not driving hard. 6.7-6.8 L/100kms. 120-130kph with a little city mixed in.

Only difference is I also removed the airbox for a cone filter to have more space (thanks greekboyd). The can sits where the airbox was.

[Mik325tds]

Hi yall from a newbie.
With interest I've read all 20 pages of this thread. I really like the systematic way you go about things here. Kudos to you all!
So please excuse this dumb question as I think I must have missed something:
I'm assuming most of you already did the EGR block or removal. With that there should be only an oily film in the air intake system and some collection of oil in the IC. Since the EG is missing, there shouldn't be any CBU. The remaining oily fumes should provide lubrication to the valve stems and burned during combustion. So why are you working so hard to remove more oil from the CCV?
I pulled my IC yesterday and even though the car has 90k miles on it, there wasn't even enough oil in there to fill a quarter of a small cup. Definitely no chance of burping up oil through the intake to cause runaway.
Please enlighten me.

[Mik325tds]

Oh never mind. Our friend from Puerto Rico has asked the same question on a parallel thread.
I guess the answer is that blow-by gases are considered exhaust gases and thus form gunk as can be seen in the newest catch can install from 135i_vs_ here:
http://www.e90post.com/forums/showpo...0&postcount=26
Better there than in the intake

Great job guys and thanks again for this educational thread.

BTW here are some pictures of my IC after 90k miles and after the cleanup.

[GottaBeKD]

Originally Posted by TDIwyse

Here's some excellent data collection and testing of stock versus cone filters on the bmw turbo gas engines done by the maker of the JBD. It's more thorough than the little bit I've done, but shows similar results.

http://www.n54tech.com/forums/showpo...92&postcount=1" rel="ugc" target="_blank">http://<a href="http://www.n54tech.c...ostcount=1</a>

http://forums.n54tech.com/showthread.php?t=13750" rel="ugc" target="_blank">http://<a href="http://forums.n54tec...hp?t=13750</a>

I'm using the shortest 4" opening AEM filter. The circumference of the MAF is a bit smaller than this and I had to use some gasketing to make up the difference to get a tight seal.

Also had to loosen the lower clamp for the intake tube and rotate it a bit to get the cone filter to fit in the space shown.

I'm not claiming that a cone filter by itself will give more power ... just on my vehicle with its mods it produced a statistically significant increase in measured power.

Sorry to resurrect an old thread and comment.

I don't have data to back this up but I noticed a significant reduction in power from a standing start with the cone filter. It was so noticeable I was thinking there was a problem with the smaller turbo. But it was producing boost according to the monitoring (by another forum member) using one of the BT tools.

Do you have a graph with pre and post to compare the power between the 2 setups. Your configuration and setup might be more accepting to the cone than mine.

Want to put the cone back in but not at the expense of low end power. My guess is heat soak at a stop but lack any hard evidence.

Some things to keep in mind. I am totally stock with just a catch can install.

Cheers.

[modobrew]

Doing some research and came across this thread. TDIwyse, 135, Mark...any of you guys have more feedback since it's been over a year since the last post? Interested if you guys are still using the catch can or have since removed it. If you're still using it, anyone have any recommendations on kits and/or installation?

[Mark M]

Originally Posted by modobrew

Doing some research and came across this thread. TDIwyse, 135, Mark...any of you guys have more feedback since it's been over a year since the last post? Interested if you guys are still using the catch can or have since removed it. If you're still using it, anyone have any recommendations on kits and/or installation?

I still have mine installed. To my knowledge there has never been a Catch can professionally engineered and offered for the 335d. So that leaves it up to us to kluge together our own best interpretations.

Mine is the Burger catch can sold for the N54 engines mounted on the front left strut bar. Available real estate under the hood is very limited, so this is one of the few spots that could fit it. The draw back is the long run of hose required. I estimate mine has about 7 ft of run to it to create the loop. Important...DON'T use standard heater hose. The oil vapors will saturate into the hose, cause it to swell, and it will weep and smell up your garage. USE hose approved for oils. I used Goodyear low pressure 3/4" power steering hose for mine.

Ideally, a catch can setup would have the following attributes, but making this work in the limited space of our engine bay is all but impossible.

1. Short hose run with can run lower than valve cover so that gravity aids in vapor removal.
2. Can location in a warm place so as to insure vapors won't condense and freeze creating a blockage during winter weather driving.
3. Minimal 90 degree bends. Bends create flow resistance and also create areas for pooling.

[modobrew]

Originally Posted by Mark M

I still have mine installed. To my knowledge there has never been a Catch can professionally engineered and offered for the 335d. So that leaves it up to us to kluge together our own best interpretations.

Mine is the Burger catch can sold for the N54 engines mounted on the front left strut bar. Available real estate under the hood is very limited, so this is one of the few spots that could fit it. The draw back is the long run of hose required. I estimate mine has about 7 ft of run to it to create the loop. Important...DON'T use standard heater hose. The oil vapors will saturate into the hose, cause it to swell, and it will weep and smell up your garage. USE hose approved for oils. I used Goodyear low pressure 3/4" power steering hose for mine.

Ideally, a catch can setup would have the following attributes, but making this work in the limited space of our engine bay is all but impossible.

1. Short hose run with can run lower than valve cover so that gravity aids in vapor removal.
2. Can location in a warm place so as to insure vapors won't condense and freeze creating a blockage during winter weather driving.
3. Minimal 90 degree bends. Bends create flow resistance and also create areas for pooling.

Mark, thanks a ton for your input. I'm still contemplating doing this mod, but I'm concerned with the limited space. I'll keep investigating others methods and maybe later down the road I'll rethink the catch can.

[adriang]

Does anyone have the ccv ~5 inch-ish pipe laying around after installing their catch can?

can't seem to find this part anywhere
A picture of it is in post 270 http://www.e90post.com/forums/showthread.php?p=15373395

[Owen81]

Part number: 13717808158
http://huskerparts.com/oemparts/bmw-...717808158.html

[Lexx.md]

Originally Posted by adriang

Does anyone have the ccv ~5 inch-ish pipe laying around after installing their catch can?

can't seem to find this part anywhere
A picture of it is in post 270 http://www.e90post.com/forums/showthread.php?p=15373395

I don't think anybody has it as pictured with elbows and connectors.

For Catch Can we have to remove just rubber part of it.

[adriang]

that's the piece I need

[QUIKDZL]

Originally Posted by adriang

that's the piece I need

Mine broke apart when I removed it.

[adriang]

Originally Posted by QUIKDZL

Mine broke apart when I removed it.

My problem exactly lol

[Lexx.md]

Originally Posted by adriang

that's the piece I need

This is how mine looks like

And i will be in Montreal on Memorial day weekend

[arons]

Here's the part for 15 bucks:

http://www.fixmyvw.com/ccv-hose-for-...-35d-and-335d/

[TorqueAddict]

Originally Posted by arons

Here's the part for 15 bucks:

http://www.fixmyvw.com/ccv-hose-for-...-35d-and-335d/

Holy threadbump!