Anyone make their own DCI but use a dryflow filter? Any cons?

NW 335i · 07-18-2014, 07:20 PM

I have parts coming in and the one thing I cant make my mind up about is the DCI. I am just not a fan of oiled filters. No matter how well they are cleaned and properly oiled the EOA always seem to show high silicone levels. At least in my diesel applications.

I am considering just making my own DCI and am thinking of running AEM dryflow filters or the Amsoil Nano fiber filters.

Maybe I am being paranoid? Tons of people running the oiled options here sucessfully but I would rather have maximum filtration if it means giving up a slight amount of flow.

Anyone use the AEM dryflow or Amsoil filters in the similar sizing used in most open DCI setups sold by the vendors? If so do you know if they flow enough or similar?

The DCI the vendors offer seem to have more filter surface area w/ the centers being opened vs the dryflow non oiled filters available.

Just curious.
Thanks

stanlalee · 07-18-2014, 09:20 PM

The biggest drawback is you can't do it yourself for much of any cheaper. Find the right size tubing and a good dry filters it will work. Dry filters supposedly don't flow as well as oiled but they supposedly filter dirt better as oiled is dependent on oil coverage. I do think your being paranoid given all the other (mainly heat) issues our oil has to deal with. Might I ask how poor filtration contributes to high silicon levels in the oil?

07-19-2014, 06:41 AM

Just get the cp-e kit:
http://cp-e.com/webstore/product/bmw...intake-system/

NW 335i · 07-19-2014, 10:36 AM

Thanks guys. I will look into the CPE as a possible option.

Stanlalee I have ran K&N filters in the past on diesels. Very briefly I might add. I have had a properly serviced and maintained filter that would still allow dust past as you could feel it on the intake track and a see it cleaning the intake w/ a clean white paper towel.

The Silicon levels were from dirt as they cleared up going to a non oiled filter.

Now I dont really drive my 335 in the woods or down long gravel roads either but still its enough to make me want to find a good alternative.

vivanapoli806 · 07-19-2014, 10:57 AM

Bms is same thing as cpe and cheaper. Contact some vendors and get prices I got mine from mike@x-ph

roadkillrob · 07-19-2014, 11:45 AM

I have the injen dual cone intake with their dry filter option and it is great and no messy oiling!

Badmeat · 07-19-2014, 03:14 PM

$90 DCI's. I have them on my car:
http://turninconcepts.com/engine/tic...ne-intake.html

335NJ · 07-19-2014, 10:52 PM

Although many people here run oiled filters with no issue, I have to agree, I have heard some negative things about cotton/oil filters. They do a good enough job to make an engine run safely, and if that's not enough, you can buy a pre-filter wrap.

AFE, AEM, Volant, and a few others have performance dry filters. You'd just need to find the correct size. The Volant PowerCore look interesting, but can't do the color.

07-18-2014, 07:20 PM	#1
NW 335i Private First Class 54 Rep 185 Posts Drives: 335i 6MT Join Date: Mar 2014 Location: Pac NW iTrader: (2)	Anyone make their own DCI but use a dryflow filter? Any cons? I have parts coming in and the one thing I cant make my mind up about is the DCI. I am just not a fan of oiled filters. No matter how well they are cleaned and properly oiled the EOA always seem to show high silicone levels. At least in my diesel applications. I am considering just making my own DCI and am thinking of running AEM dryflow filters or the Amsoil Nano fiber filters. Maybe I am being paranoid? Tons of people running the oiled options here sucessfully but I would rather have maximum filtration if it means giving up a slight amount of flow. Anyone use the AEM dryflow or Amsoil filters in the similar sizing used in most open DCI setups sold by the vendors? If so do you know if they flow enough or similar? The DCI the vendors offer seem to have more filter surface area w/ the centers being opened vs the dryflow non oiled filters available. Just curious. Thanks
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07-18-2014, 09:20 PM	#2
stanlalee Major 261 Rep 1,093 Posts Drives: 07' E92 335i manual Join Date: Oct 2013 Location: Newport News, Va iTrader: (0)	The biggest drawback is you can't do it yourself for much of any cheaper. Find the right size tubing and a good dry filters it will work. Dry filters supposedly don't flow as well as oiled but they supposedly filter dirt better as oiled is dependent on oil coverage. I do think your being paranoid given all the other (mainly heat) issues our oil has to deal with. Might I ask how poor filtration contributes to high silicon levels in the oil?
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07-19-2014, 06:41 AM	#3
FCobra94 Guest 0 Rep n/a Posts Drives:	Just get the cp-e kit: http://cp-e.com/webstore/product/bmw...intake-system/
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07-19-2014, 10:36 AM	#4
NW 335i Private First Class 54 Rep 185 Posts Drives: 335i 6MT Join Date: Mar 2014 Location: Pac NW iTrader: (2)	Thanks guys. I will look into the CPE as a possible option. Stanlalee I have ran K&N filters in the past on diesels. Very briefly I might add. I have had a properly serviced and maintained filter that would still allow dust past as you could feel it on the intake track and a see it cleaning the intake w/ a clean white paper towel. The Silicon levels were from dirt as they cleared up going to a non oiled filter. Now I dont really drive my 335 in the woods or down long gravel roads either but still its enough to make me want to find a good alternative.
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07-19-2014, 10:57 AM	#5
vivanapoli806 Captain 89 Rep 824 Posts Drives: 2012 535i Xdrive Msport Join Date: Apr 2013 Location: Chicago Burbs iTrader: (2)	Bms is same thing as cpe and cheaper. Contact some vendors and get prices I got mine from mike@x-ph
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07-19-2014, 11:45 AM	#6
roadkillrob Major General 881 Rep 5,463 Posts Drives: 08 335i,22 X3M, 2012 C63 Black Join Date: Jul 2007 Location: Boston iTrader: (15)	I have the injen dual cone intake with their dry filter option and it is great and no messy oiling! __________________ 2025 X5 Msport 2008 E93 335i FBO 2012 Mercedes C63 Black Series Alanite Grey
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07-19-2014, 03:14 PM	#7
Badmeat Enlisted Member 3 Rep 38 Posts Drives: '07 335i, '04 STI Join Date: Feb 2014 Location: Cincy, OH iTrader: (0)	$90 DCI's. I have them on my car: http://turninconcepts.com/engine/tic...ne-intake.html __________________ 2007 335i Sedan\|Manual Sport Pkg\|DCI\|JB4 G5 ISO\|VRSF downpipes\|VRSF 7" FMIC\|Southbend Stage 3 Endurance clutch & SMFW\|Msport front bumper\|Forgestar F14's
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07-19-2014, 10:52 PM	#8
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	Although many people here run oiled filters with no issue, I have to agree, I have heard some negative things about cotton/oil filters. They do a good enough job to make an engine run safely, and if that's not enough, you can buy a pre-filter wrap. AFE, AEM, Volant, and a few others have performance dry filters. You'd just need to find the correct size. The Volant PowerCore look interesting, but can't do the color.
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