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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 01-17-2012, 09:06 PM   #1
xixixi
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Ultimate Breather Tank

Here is what in my eyes is one of the best catch cans I've seen for e46s. HPF also makes a very nice can. (500) This can will cost you about. (200) I took this idea from PEI. This set up requires a long tube intake. I realized after I made the mounting bracket. I had put a heater under my intake... I'm having some 94% reflective material shipped this week to combat that issue. Enjoy!
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Last edited by xixixi; 01-18-2012 at 09:38 AM.
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Old 01-17-2012, 09:45 PM   #2
Tchleung
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Instead of having it as a breather tank, why not route it back to the intake? So long as the catch can has adequate baffles and filters, minimal oil vapors will re-enter the intake track. Vacuum promotes better ring seal as well. Looks good though. Did you make a bracket for it to mount to or use an existing hole there? I ran an open crankcase breather system on my old turbo car so I do know it's effectiveness!






I'm using IMO one of the best bang for your buck cans. Made by 42 Draft Designs.

It costs $115 + shipping for the basic can and goes up from there. But this is the basic one:



And to show you the internal baffle/filter to catch oil at the top of the can.




Installed:


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Last edited by Tchleung; 01-17-2012 at 09:52 PM.
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Old 01-17-2012, 09:51 PM   #3
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Looks very nice! M3's VC design allow for a lot more options, while still maintaining a clean engine bay. That is a very nice set up! I still hate the idea of having that hot air in my intake! The an fittings/hoses really drive up the price of a can. Thanks for sharing!

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Old 01-17-2012, 10:19 PM   #4
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I did make a bracket to mount it. This bracket will cost about 4 dollars from home depot. You need to modify it slightly for it to work. I'm more than willing to go into great detail, about how I did it. Ask away! EDIT: BTW you have some very nice pieces in that bay!

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Old 01-18-2012, 02:01 AM   #5
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At the rate my catch can is filling, I am thinking of using MrPaddleShift's solution that utilizes a BMW motorsport oil separator with a check valve, to drain back to dipstick
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Old 01-18-2012, 05:02 AM   #6
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Old 01-18-2012, 08:33 AM   #7
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Mine is filling up pretty fast. It actually doesn't fill up before the vapors start to blow out the other side though. I just need some baffling in there. I'm now using quart sized containers. But I'm venting out to the atmosphere.

Also, it is impossible to clean out the gunk. I would NEVER use something that I could take completely apart and clean. My lines are even clogging up with gunk.
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Old 01-18-2012, 09:46 AM   #8
xixixi
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Originally Posted by Drewfus2101 View Post
Mine is filling up pretty fast. It actually doesn't fill up before the vapors start to blow out the other side though. I just need some baffling in there. I'm now using quart sized containers. But I'm venting out to the atmosphere.

Also, it is impossible to clean out the gunk. I would NEVER use something that I could take completely apart and clean. My lines are even clogging up with gunk.
My comes out with 1 wing nut and a turn of a hose. I used a big hose and mine doesn't seem to get clogged. But, I do have that nasty mayo looking stuff in mine. Pics/price of paddleshift's set up?

Last edited by xixixi; 01-18-2012 at 09:48 AM.
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Old 01-26-2012, 02:19 PM   #9
Jim Murphy
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Originally Posted by paraklas View Post
At the rate my catch can is filling, I am thinking of using MrPaddleShift's solution that utilizes a BMW motorsport oil separator with a check valve, to drain back to dipstick
I was told by my BMW guru that if not setup correctly the catch can will create a vacuum strong enough to suck out ALL the oil in the pan. I am curious about the BMW check valve in a later post here please provide a link to the kit.

TIA,
Jim
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Old 01-26-2012, 04:55 PM   #10
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I was told by my BMW guru that if not setup correctly the catch can will create a vacuum strong enough to suck out ALL the oil in the pan. I am curious about the BMW check valve in a later post here please provide a link to the kit.

TIA,
Jim
That's why a one way valve is utilized as well

Here's my catch can install and the alternative drain-to-dipstick method here
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Last edited by paraklas; 01-26-2012 at 05:02 PM.
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Old 01-26-2012, 07:37 PM   #11
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Originally Posted by xixixi View Post
Here is what in my eyes is one of the best catch cans I've seen
http://store.radiumauto.com/index.ph...id=28&parent=5

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Old 01-26-2012, 08:47 PM   #12
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Wow, I really like the can you linked. Thank you
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Old 01-26-2012, 08:54 PM   #13
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Anyone else did this install? Looking for ideals. Like to be super clean and not noticeable...
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Old 01-26-2012, 08:57 PM   #14
xixixi
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I'm sure I can help make a bracket or something/find a place for that thing. Hell, someone buy mine. I'll order this one and make a mount/location for it.
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