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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 04-16-2016, 03:41 AM   #1
mrbobmicjoe
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Share your Oil Catch Can Setup

Hey guys,
I know that a lot of E46 owners (especially those with FI) have been switching over to catch can systems in place of the junk CCV system. Im curious to see what setups people are running.

I have a closed loop system at the moment with a check valve, hooked up to a $15 ebay special catch can. My question is, does anyone have any experience with systems that vent to atmosphere?

Share your setup below
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Old 04-16-2016, 03:46 AM   #2
daniel_f.
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Quote:
Originally Posted by mrbobmicjoe View Post
Hey guys,
I know that a lot of E46 owners (especially those with FI) have been switching over to catch can systems in place of the junk CCV system. Im curious to see what setups people are running.

I have a closed loop system at the moment with a check valve, hooked up to a $15 ebay special catch can. My question is, does anyone have any experience with systems that vent to atmosphere?

Share your setup below
Venting into ambient will give fault maf readings and therefore problems with engine smoothness, most probably stalling issues and lambda regulator difficulties
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Old 04-16-2016, 03:51 AM   #3
mrbobmicjoe
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Originally Posted by daniel_f. View Post
Venting into ambient will give fault maf readings and therefore problems with engine smoothness, most probably stalling issues and lambda regulator difficulties
God himself has spoken!

I was curious about a system like this because im looking to get rid of the ugly distribution piece that the ccv hooks up to (part #5 on the diagram). Since the catch can setup outputs mostly clean air back into the intake, could i plug up the 6 return ports on the intake manifold, and run a single line from the can back into the intake manifold?
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Old 04-16-2016, 05:29 AM   #4
daniel_f.
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Probably the best way is M56 valve cover to get rid off of all this emissions stuff.

I met a friend a few days ago and hes using a catch can forever with venting back into intake, his frickin oil refill cap is as new! Not a single bit of carbon build
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