N54 Low side OCC results?

eppson977 · 10-31-2021, 01:00 PM

Has anyone installed something like the BMS low-side OCC and looked at their intake valves after some time? Everything I’ve read points to the fact that the majority of carbon build up results from driving while not in boost - so theoretically a low-side OCC should stop/ dramatically reduce build up. My problem is I can’t find anyone who has this Setup and actually shown results. Anyone done this or can point me in the direction of some documented results? If the dual OCC setup could dramatically reduce buildup I’d be very interested. I appreciate it!

Dave92N54 · 10-31-2021, 11:09 PM

I have one. Can't say about buildup but it definitely catches plenty of oil.

_N54 · 10-31-2021, 11:10 PM

I have it. Captures 95% of the junk compared to the high side OCC. My head ports aren't plugged yet, but I will once I do my valve cover. I empty the low side can bi-weekly and half of it is filled with brown crap and condensation.

eppson977 · 11-01-2021, 12:22 AM

Thanks for the input! I will look into ordering. Do either of you have plans to take your intake off any time soon/ know of anyone who has after doing this so many miles? How long have you all had yours on?

10-31-2021, 01:00 PM	#1
eppson977 New Member 2 Rep 25 Posts Drives: BMW 335i Join Date: Aug 2021 Location: San Antonio iTrader: (0)	N54 Low side OCC results? Has anyone installed something like the BMS low-side OCC and looked at their intake valves after some time? Everything I’ve read points to the fact that the majority of carbon build up results from driving while not in boost - so theoretically a low-side OCC should stop/ dramatically reduce build up. My problem is I can’t find anyone who has this Setup and actually shown results. Anyone done this or can point me in the direction of some documented results? If the dual OCC setup could dramatically reduce buildup I’d be very interested. I appreciate it!
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10-31-2021, 11:09 PM	#2
Dave92N54 Major 530 Rep 1,165 Posts Drives: 09 E92 335i 6MT Join Date: Nov 2020 Location: Westminster, Maryland iTrader: (0) Garage List 2009 BMW 335i [10.00]	I have one. Can't say about buildup but it definitely catches plenty of oil. __________________ 09 E92 335i 6MT / Alpine White / Coral Red / VRSF 7.5" / VRSF DCI / VRSF Catless Downpipes / VTT Charge Pipe / Turbosmart RacePort Gen V / RB OEM Billet Turbos / CD919 Custom Tune / Bilstein PSS9s
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10-31-2021, 11:10 PM	#3
_N54 Captain 300 Rep 884 Posts Drives: 335d Join Date: Mar 2020 Location: USA iTrader: (0)	I have it. Captures 95% of the junk compared to the high side OCC. My head ports aren't plugged yet, but I will once I do my valve cover. I empty the low side can bi-weekly and half of it is filled with brown crap and condensation. __________________ 2013 335is - sold 2011 335d
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11-01-2021, 12:22 AM	#4
eppson977 New Member 2 Rep 25 Posts Drives: BMW 335i Join Date: Aug 2021 Location: San Antonio iTrader: (0)	Thanks for the input! I will look into ordering. Do either of you have plans to take your intake off any time soon/ know of anyone who has after doing this so many miles? How long have you all had yours on? Last edited by eppson977; 11-01-2021 at 12:27 AM..
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