BMS OCC

SeanS54 · 08-05-2014, 07:24 PM

After 4 track events I checked my Oil Catch Can and it did it's job. Got about a table spoon of oil. Prior to the track events the can was empty with a light residue.

If you're driving hard and boosting more than stock I highly recommend an OCC.

e92_enthusiast_1 · 08-05-2014, 07:30 PM

Nice, thanks for sharing. i was curious and this answers the question about effectiveness.

SeanS54 · 08-05-2014, 07:34 PM

Quote:

Originally Posted by e92_enthusiast_1

Nice, thanks for sharing. i was curious and this answers the question about effectiveness.

no worries... I too questioned the effectiveness of the OCC but after this discovery I'm glad I have... driving around town and boosting now and then I didn't catch much oil.... but after some hard driving at the track it did it's job...

Jeff@TopGearSolutions · 08-05-2014, 07:39 PM

Oh it works. After 6,000 miles my car had about 1/4 of it full LOL.

SeanS54 · 08-05-2015, 04:18 PM

update as of today... 3 track events and 3K miles later, the OCC is still doing it's job...

N54 335I with JB4 tune & FBO

[IMG]

BMS OCC (2) by Sean T, on Flickr[/IMG]

matthewo · 08-05-2015, 04:29 PM

I just use my intercooler and valves for this...

335NJ · 08-05-2015, 05:11 PM

You don't even know. My previous vehicle had a 5.7L Hemi, and that SOB filled catch cans scary fast.

Happy it's working well OP!

335xMD · 08-05-2015, 06:54 PM

out of curiosity, how many of you have the upgraded RB PCV and still have found significant amounts of oil in your OCC?

Sgop335 · 08-05-2015, 09:29 PM

Quote:

Originally Posted by 335xMD

out of curiosity, how many of you have the upgraded RB PCV and still have found significant amounts of oil in your OCC?

They have different purposes. Pcv valve - oil vapors going to the intake man. Occ collects the oil going to the inlet pipe. Rb pcv valve is better since it does not leak at boost that helps the crank case. guess its a lousy explanation

335xMD · 08-06-2015, 12:05 AM

Quote:

Originally Posted by Sgop335

They have different purposes. Pcv valve - oil vapors going to the intake man. Occ collects the oil going to the inlet pipe. Rb pcv valve is better since it does not leak at boost that helps the crank case. guess its a lousy explanation

thanks for the reply

Just curious because apparently some have wound up with essentially no OCC accumulation after upgrading to RB PCV. I've installed the RB PCV but have still been considering a can

musc · 08-06-2015, 05:33 AM

I did RB PCV and BMS OCC at the same time. No oil in the catch ever, other than a light film, but nothing to dump out.

EJ_3 · 08-06-2015, 10:39 AM

Hmmm....I forgot I had this oil catch can, I should check it.

924er · 08-06-2015, 10:58 AM

I got rid of my oil catch can. I just get my valves cleaned. As for the oil blow by around the FMIC and chargepipe, it doesn't bother me. Glad to see its working though

MineralweissIS · 08-06-2015, 10:59 AM

Quote:

Originally Posted by 335xMD

thanks for the reply

Just curious because apparently some have wound up with essentially no OCC accumulation after upgrading to RB PCV. I've installed the RB PCV but have still been considering a can

You and I are in the same boat. I installed the RB PCV in an effort to curb oil consumption on my N54. I was hoping for an improvement but there has been none in the 4 months or so I've had it installed. At the minimum, I hope it helps relieve crankcase pressure but I still have to add 1 qt between 1500~1700 miles. I am not really sure if the OCC will help but it can't hurt.

Thanks to SeanS54 for posting the data and pictures!

Sgop335 · 08-06-2015, 11:06 AM

Quote:

Originally Posted by AlpineweissIS

You and I are in the same boat. I installed the RB PCV in an effort to curb oil consumption on my N54. I was hoping for an improvement but there has been none in the 4 months or so I've had it installed. At the minimum, I hope it helps relieve crankcase pressure but I still have to add 1 qt between 1500~1700 miles. I am not really sure if the OCC will help but it can't hurt.

Thanks to SeanS54 for posting the data and pictures!

It may be good for you to have an occ to see how much oil collects, or if you are losing oil elsewhere.

On a side note, i have wondered if replacing the pcv hose 11157553949 has any benefits. Does this hose have a valve or is it just a hose?

WedgePerformance · 08-06-2015, 11:28 AM

I have heard stories of people having lots of oil and some with very little oil. The valve cover uses a cyclonic chamber to help prevent oil from escaping. You would think this would work well. I just rolled to 100k miles on my car so I replaced the valve cover as it needed a gasket anyway. I always had oil in my CP and I though it was mainly from the turbo seals. Two weeks after doing the valve cover, I put new HEXON RR550 turbos and TFT Inlet system on my car. The TFT has a vacuum line for the PCV which I hooked up to pull the crank case fumes back into the intake. The hose came loose and when hooking it back up noticed there was oil and not just a little... So I just ordered a BMS OCC and will be installing it this weekend. I highly doubt my turbos are leaking, but I have consumed a half quart of oil in the past 1000 miles. So it will be interesting to see how much oil I can catch...

N54CoupeHP · 03-15-2016, 01:16 AM

Quote:

Originally Posted by SeanS54

After 4 track events I checked my Oil Catch Can and it did it's job. Got about a table spoon of oil. Prior to the track events the can was empty with a light residue.

If you're driving hard and boosting more than stock I highly recommend an OCC.

Quote:

Originally Posted by Jeff@TopGearSolutions

Oh it works. After 6,000 miles my car had about 1/4 of it full LOL.

Quote:

Originally Posted by EJ_3

Hmmm....I forgot I had this oil catch can, I should check it.

Quote:

Originally Posted by 924er

I got rid of my oil catch can. I just get my valves cleaned. As for the oil blow by around the FMIC and chargepipe, it doesn't bother me. Glad to see its working though

Quote:

Originally Posted by MineralweissIS

You and I are in the same boat. I installed the RB PCV in an effort to curb oil consumption on my N54. I was hoping for an improvement but there has been none in the 4 months or so I've had it installed. At the minimum, I hope it helps relieve crankcase pressure but I still have to add 1 qt between 1500~1700 miles. I am not really sure if the OCC will help but it can't hurt.

Thanks to SeanS54 for posting the data and pictures!

For those running the BMS OCC, did you have to cut your engine cover?

Quote:

Originally Posted by WedgePerformance

I have heard stories of people having lots of oil and some with very little oil. The valve cover uses a cyclonic chamber to help prevent oil from escaping. You would think this would work well. I just rolled to 100k miles on my car so I replaced the valve cover as it needed a gasket anyway. I always had oil in my CP and I though it was mainly from the turbo seals. Two weeks after doing the valve cover, I put new HEXON RR550 turbos and TFT Inlet system on my car. The TFT has a vacuum line for the PCV which I hooked up to pull the crank case fumes back into the intake. The hose came loose and when hooking it back up noticed there was oil and not just a little... So I just ordered a BMS OCC and will be installing it this weekend. I highly doubt my turbos are leaking, but I have consumed a half quart of oil in the past 1000 miles. So it will be interesting to see how much oil I can catch...

What were your findings?

3.1L Z · 03-15-2016, 09:03 PM

Cut slightly. No big deal.

tova86 · 03-15-2016, 10:40 PM

used to have oil around my chargepipe on the inside.. the occ stopped it from happening again.. very happy with resuklts.

N54CoupeHP · 03-21-2016, 02:13 AM

Quote:

Originally Posted by 3.1L Z

Cut slightly. No big deal.

Do you have any pics?

Boland01 · 03-21-2016, 09:02 AM

On our 2010 535i with 29K miles and a JB4 we get almost no oil in the BMS OCC. I run map 5. On our 2007 335i with 80K miles and a JB4, catless downpipes and a CRX FMIC we get several table spoons every oil change.

I don't know if it's mileage, tune or just randomness in the N54 motors but there seems to be a wide range on what gets past the valve cover.

08-05-2014, 07:24 PM	#1
SeanS54 Captain 172 Rep 851 Posts Drives: M4 ZCP, E46 M3, '21 Tacoma Join Date: Jan 2011 Location: Bay Area, CA iTrader: (20)	BMS OCC - works After 4 track events I checked my Oil Catch Can and it did it's job. Got about a table spoon of oil. Prior to the track events the can was empty with a light residue. If you're driving hard and boosting more than stock I highly recommend an OCC. __________________ https://www.youtube.com/user/SeanS54/videos
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08-05-2014, 07:30 PM	#2
e92_enthusiast_1 Lieutenant Colonel 118 Rep 1,709 Posts Drives: '10 AW/CR e92 6mt 335i Join Date: Mar 2012 Location: Tempe, AZ iTrader: (1) Garage List 2010 BMW 335i [10.00]	Nice, thanks for sharing. i was curious and this answers the question about effectiveness. __________________ 2010 E92 N54 335i 6MT Alpine White 2025 G87 S58 M2 6MT Grigio Telesto - Ordered
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08-05-2014, 07:39 PM	#4
Jeff@TopGearSolutions 3461 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Oh it works. After 6,000 miles my car had about 1/4 of it full LOL.
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08-05-2015, 04:18 PM	#5
SeanS54 Captain 172 Rep 851 Posts Drives: M4 ZCP, E46 M3, '21 Tacoma Join Date: Jan 2011 Location: Bay Area, CA iTrader: (20)	update as of today... 3 track events and 3K miles later, the OCC is still doing it's job... N54 335I with JB4 tune & FBO [IMG]BMS OCC (2) by Sean T, on Flickr[/IMG] __________________ https://www.youtube.com/user/SeanS54/videos
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08-05-2015, 04:29 PM	#6
matthewo First Lieutenant 58 Rep 319 Posts Drives: 335i Join Date: Mar 2015 Location: SC iTrader: (2)	I just use my intercooler and valves for this...
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08-05-2015, 05:11 PM	#7
335NJ Colonel 534 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	You don't even know. My previous vehicle had a 5.7L Hemi, and that SOB filled catch cans scary fast. Happy it's working well OP!
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08-05-2015, 06:54 PM	#8
335xMD N54 Crew 16 Rep 88 Posts Drives: 2008 335xi 6MT Join Date: Dec 2014 Location: In the hospital iTrader: (0) Garage List 2008 BMW 335xi [0.00]	out of curiosity, how many of you have the upgraded RB PCV and still have found significant amounts of oil in your OCC? __________________ '08 335xi 6MT \| JB4 D5 ISO + MHD/BB E85 Flash \| Fuel-it! Stage 2 LPFP \| BMS DCI \| BMS CP w/ Turbosmart Kompact Dual Port \| Cyba scoops \| E60
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08-06-2015, 05:33 AM	#11
musc Free T_e_r_r_Y :) 222 Rep 1,706 Posts Drives: X3MC, Audi TTRS MK3, 335is DCT Join Date: Dec 2006 Location: Charleston, SC iTrader: (9) Garage List 2023 BMW X3MC [10.00] 2011 BMW 335is [10.00]	I did RB PCV and BMS OCC at the same time. No oil in the catch ever, other than a light film, but nothing to dump out.
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08-06-2015, 10:39 AM	#12
EJ_3 Colonel 374 Rep 2,838 Posts Drives: e92 335i, e34 525i & e60 530i Join Date: Aug 2011 Location: N Las Vegas iTrader: (13) Garage List 2007 BMW 335i [8.34] 2016 Ram 1500 Sport [8.00] 1994 BMW 525i [10.00] 2007 BMW 530i [8.66]	Hmmm....I forgot I had this oil catch can, I should check it. __________________ click here for mods
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08-06-2015, 10:58 AM	#13
924er Colonel 351 Rep 2,049 Posts Drives: e92 335i '10 Join Date: Feb 2014 Location: Socal iTrader: (0)	I got rid of my oil catch can. I just get my valves cleaned. As for the oil blow by around the FMIC and chargepipe, it doesn't bother me. Glad to see its working though __________________ '10 e92 N54 DCI intakes, ER chargepipe, TIAL BOV, VRSF 5in FMIC, BMS Downpipes COBB e30
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08-06-2015, 11:28 AM	#16
WedgePerformance BimmerPost Supporting Vendor 1341 Rep 1,701 Posts Drives: Slot Machines.. Keep Taking $ Join Date: Oct 2013 Location: Portland, OR iTrader: (0) Garage List 2007 BMW 335i Sport [9.67]	I have heard stories of people having lots of oil and some with very little oil. The valve cover uses a cyclonic chamber to help prevent oil from escaping. You would think this would work well. I just rolled to 100k miles on my car so I replaced the valve cover as it needed a gasket anyway. I always had oil in my CP and I though it was mainly from the turbo seals. Two weeks after doing the valve cover, I put new HEXON RR550 turbos and TFT Inlet system on my car. The TFT has a vacuum line for the PCV which I hooked up to pull the crank case fumes back into the intake. The hose came loose and when hooking it back up noticed there was oil and not just a little... So I just ordered a BMS OCC and will be installing it this weekend. I highly doubt my turbos are leaking, but I have consumed a half quart of oil in the past 1000 miles. So it will be interesting to see how much oil I can catch...
	Appreciate 0 Quote

03-15-2016, 09:03 PM	#18
3.1L Z Private First Class 27 Rep 186 Posts Drives: '09 E92, Cobb AP Join Date: Jul 2012 Location: San Antonio iTrader: (0)	Cut slightly. No big deal. __________________ '11 E92, MSport 3 Pedal 3.1L Stroker Z
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03-15-2016, 10:40 PM	#19
tova86 RACE CAR!! 37 Rep 568 Posts Drives: 09 335i AW sedan Join Date: May 2013 Location: San Diego, CA iTrader: (1)	used to have oil around my chargepipe on the inside.. the occ stopped it from happening again.. very happy with resuklts. __________________ jb4/e85 wedgeflash, vanguard exhaust, wagner fmic, plm dps, dci, ER chargepipe, turbosmart bov, alpina flash, msport w/ splitters, miro 111 19x9.5 all around , sonic tuning csl trunk, gloss black roof, st coilover, custom black/white umnitza V2 headlights
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03-21-2016, 09:02 AM	#21
Boland01 Lieutenant 152 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	On our 2010 535i with 29K miles and a JB4 we get almost no oil in the BMS OCC. I run map 5. On our 2007 335i with 80K miles and a JB4, catless downpipes and a CRX FMIC we get several table spoons every oil change. I don't know if it's mileage, tune or just randomness in the N54 motors but there seems to be a wide range on what gets past the valve cover.
	Appreciate 0 Quote

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