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Old 02-28-2016, 09:32 AM   #1
rkneeshaw
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Using the M56 valve cover is an oil catch can alternative

Hey all,

Those of us with one of ESS' Twin Screw kits know that the stock CCV oil-air-seperator is removed during installation. Its replaced with a PCV on top of the ESS manifold, but since there is no drain for the condensed vapor residue, that stuff all drools down through the compressor and back into the intake valves. ESS argues this isn't an issue.

However a few of us are neat-freaks and didn't like that idea so much so the solution we have had has been to install an oil catch in line between the valve cover and the PCV valve on top of the ESS manifold. Which works.

But I have a small mishimoto compact catch can and I have to empty about 4oz of the oil/fuel mixture every couple fuel-ups. And, I'd like a more OEM solution.

Enter the M56 valve cover. It bolts right up to the M54 head and has built-in CCV oil-air-seperator. I won't re-hash the details which you can find in this thread here: http://forum.e46fanatics.com/showthread.php?t=1066308

I'm trying to think if there would be any kind of problem running this at the same time as the PCV on the ESS manifold? I can't think of any.

From what i can tell, the PCV on the ESS manifold and the CCV are built exactly the same way





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Old 02-28-2016, 09:36 AM   #2
daniel_f.
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You US guys are so lucky to have that fabulous option Ive never seen a single M56 part over here and absolutely not affordable from BMW.
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Old 02-28-2016, 03:03 PM   #3
rkneeshaw
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We still didn't get the CSL or the more powerful e36 M3 so you europe guys are still ahead of the game

Think I would have an issue running what is basically two CCV's in serial like this?
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ESS Twin Screw Stage 2 - Wavetrac - Headers - Magnaflow - BMW Performance Intake and SSK
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Old 02-29-2016, 03:45 AM   #4
daniel_f.
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Quote:
Originally Posted by rkneeshaw View Post
We still didn't get the CSL or the more powerful e36 M3 so you europe guys are still ahead of the game

Think I would have an issue running what is basically two CCV's in serial like this?
Id remove one, yes.
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Old 02-29-2016, 06:39 AM   #5
rkneeshaw
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In a perfect world that would be my first reaction too. But, the PCV on top of the ESS manifold is bolted on from the inside, so removing it is basically going to require a large dissassebly process. And even then, I dont know what I would use to seal the hole left in the top of the manifold.

So I'm trying to think about the mechanics of the setup to see if I can come up with a reason that I should NOT run both.

As I think about it, it's under vacuum, and I think vacuum would remain the same through the whole system. And one of the PCV/CCV would properly slow the vacuum at the proper times, thus doing the job... but, I'm no engineer, I wonder if I'm missing something.
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ESS Twin Screw Stage 2 - Wavetrac - Headers - Magnaflow - BMW Performance Intake and SSK
Turner Motorsports Reinforcements and Spacers - Powerflex - StopTech

Build thread: http://forum.e46fanatics.com/showthread.php?t=696662
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