BMS DCI Power Loss

AJN54135i · 08-30-2011, 03:30 AM

I put a bms dci in my 135i. Since I put it in ive noticed my pedal response is not as good and the car overall does not feel as fast. Is this common with the dci?

RnmEvo9 · 08-30-2011, 03:47 AM

Quote:

Originally Posted by AJN54135i

I put a bms dci in my 135i. Since I put it in ive noticed my pedal response is not as good and the car overall does not feel as fast. Is this common with the dci?

Yes if you are completely stock with nothing else done to it. It's only helpful when running higher than normal boost.

RimasRS · 08-30-2011, 04:02 AM

Well I can see that in most cases people discovering slight torque loss though maybe higher hp in higher rpm's

Mike@N54Tuning.com · 08-30-2011, 12:22 PM

As long as you put the couplers in properly there is no performance or torque loss even at the stock boost levels. It's all in your head.

Mike

Makkasteez · 08-30-2011, 12:37 PM

im running the injen dci w/ cobb AP. i feel a slight throttle response issue when its hot here in so cal. when normal temp, slight increase over stock. and cold days/ night it is a whole different pull IMO
:]

thebigragu99 · 08-30-2011, 07:36 PM

It's placebo fior sure man..If everything is installed right the car should rip harder.Watch on cold night!

///MLOVER · 08-30-2011, 10:22 PM

Hey, Aj I saw you by 6 way in Beverly hills today with your buddy's. You guys are obnoxious,rude and disrespectful! Come on you guys need to stop drag racing in beverly hills it's not safee!!

sluflyer06 · 08-30-2011, 10:26 PM

Quote:

Originally Posted by Mike@N54Tuning.com

As long as you put the couplers in properly there is no performance or torque loss even at the stock boost levels. It's all in your head.

Mike

Whats the proper way to put the couplers in? I didn't know there was a trick to it. I hope mine are in correctly.

thebigragu99 · 08-30-2011, 11:59 PM

Quote:

Originally Posted by ///MLOVER

Hey, Aj I saw you by 6 way in Beverly hills today with your buddy's. You guys are obnoxious,rude and disrespectful! Come on you guys need to stop drag racing in beverly hills it's not safee!!

Bererly hills flash cop ..

thez99 · 08-31-2011, 01:02 AM

Quote:

Originally Posted by sluflyer06

Whats the proper way to put the couplers in? I didn't know there was a trick to it. I hope mine are in correctly.

First off, make sure that there is atleast 3/4" if not a lil more aluminum pipe showing between each filter. The piping should only be just inside the filter and stock inlet pipes, just enough to secure tight and properly with the clamps. (see pic below) Really there isnt a "trick" to it, just make sure the clamps are secure and the piping is inside each entry equally.

As far as this whole power loss bit with this intake, I know its all bullshit, I think really its due to so many reading it on the forums that they expect it to happen, like the other guy said, "placebo" effect. I installed my bms intakes at the same time that I installed my HPF intercooler as well and I felt a pretty noticeable boost in lower end torque. I have no tune thus far so there is no added boost installed with this yet. I truly believe that this intake is NOT just for those who load on the extra boost. This engine needs to breath regardless of its lower boost with 2 turbos, the more air and free-flowing ability the better the turbo's will perform and more efficiently as well.

I also agree bout the "try it on a cool night" bit, my car like I said has no tune still and it goes nuts below 80 now, I barely ever get close to WOT either.

mrHellas · 03-31-2013, 12:36 PM

Not to sound argumentative here, but I have to agree with OP. I just installed my BMS DCI 2 days ago and I have to say that I too feel a drop in torque. No tune and no other engine mods. Are we positive that there are no negative effects with these things.

....and just for clarity... I'm positive that I installed these babies exactly as instructed in the DIY (on this forum, and the one that came with the units). I inserted the tubes only about 1/2 an inch to leave clearance for the velocity stack, and inserted the cones as deep in the intake lines as I possibly could. The collars are also choked down as much as possible.

Anyway, thoughts?

Pictures of install:

130BYEi · 03-31-2013, 02:23 PM

Just keep stock box with drop in. I ran DCI. Better numbers with the drop in we're recorded, prolly due to heat soak.

Adam135 · 03-31-2013, 03:17 PM

Quote:

Originally Posted by ///MLOVER

Hey, Aj I saw you by 6 way in Beverly hills today with your buddy's. You guys are obnoxious,rude and disrespectful! Come on you guys need to stop drag racing in beverly hills it's not safee!!

Is this real?

Mike@N54Tuning.com · 04-01-2013, 12:30 PM

Quote:

Originally Posted by mrHellas

Not to sound argumentative here, but I have to agree with OP. I just installed my BMS DCI 2 days ago and I have to say that I too feel a drop in torque. No tune and no other engine mods. Are we positive that there are no negative effects with these things.

....and just for clarity... I'm positive that I installed these babies exactly as instructed in the DIY (on this forum, and the one that came with the units). I inserted the tubes only about 1/2 an inch to leave clearance for the velocity stack, and inserted the cones as deep in the intake lines as I possibly could. The collars are also choked down as much as possible.

Anyway, thoughts?

Pictures of install:

It's impossible for the DCI to lower torque or throttle response. It's been verified with a VBOX. It's all in your head. The different sounds that come from the DCI rather than the intake plays tricks with your mind.

Mike

mrHellas · 04-01-2013, 03:10 PM

Quote:

Originally Posted by Mike@N54Tuning.com

It's impossible for the DCI to lower torque or throttle response. It's been verified with a VBOX. It's all in your head. The different sounds that come from the DCI rather than the intake plays tricks with your mind.

Mike

@Mike@N54Tuning.com, I'm a mechanical engineer and I completely agree with you, as I understand the physics behind these things. It's just this feeling of "something different" ... if that makes any sense. Idk. Maybe it IS just in my head, but I swear it's not. I'm going to put the stock box back in next week for a service call and we'll see what I think then.

Thank you though.

smellyborrelli · 04-01-2013, 03:41 PM

I installed mine last week and Im cob stage1 aggressive. It seems like my rear tires break loose in second gear less than they did with the oem box..... I was thinking it was all in my head until I saw this thread

08-30-2011, 03:30 AM	#1
AJN54135i sksksk 17 Rep 60 Posts Drives: 2008 BMW 135i Join Date: Jun 2011 Location: Los Angeles, California iTrader: (0)	BMS DCI Power Loss I put a bms dci in my 135i. Since I put it in ive noticed my pedal response is not as good and the car overall does not feel as fast. Is this common with the dci?
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08-30-2011, 04:02 AM	#3
RimasRS Colonel 85 Rep 2,438 Posts Drives: BMW X3 SD Join Date: Sep 2010 Location: Europe iTrader: (0)	Well I can see that in most cases people discovering slight torque loss though maybe higher hp in higher rpm's
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08-30-2011, 12:22 PM	#4
Mike@N54Tuning.com Joint Chiefs of Staff 4912 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	As long as you put the couplers in properly there is no performance or torque loss even at the stock boost levels. It's all in your head. Mike Attached Images
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08-30-2011, 12:37 PM	#5
Makkasteez 1nt3n5ity 39 Rep 390 Posts Drives: 08' 135i Join Date: Jun 2009 Location: San Francisco, CA iTrader: (1)	im running the injen dci w/ cobb AP. i feel a slight throttle response issue when its hot here in so cal. when normal temp, slight increase over stock. and cold days/ night it is a whole different pull IMO :]
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08-30-2011, 07:36 PM	#6
thebigragu99 Banned 45 Rep 828 Posts Drives: 135 tuorbbo Join Date: Aug 2011 Location: nyc iTrader: (1)	It's placebo fior sure man..If everything is installed right the car should rip harder.Watch on cold night!
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08-30-2011, 10:22 PM	#7
///MLOVER Private 12 Rep 53 Posts Drives: Bmw m3 Join Date: Nov 2010 Location: Beverly Hills,CA iTrader: (0)	Hey, Aj I saw you by 6 way in Beverly hills today with your buddy's. You guys are obnoxious,rude and disrespectful! Come on you guys need to stop drag racing in beverly hills it's not safee!!
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03-31-2013, 12:36 PM	#11
mrHellas BMW Enthusiast 0 Rep 39 Posts Drives: '09 N54-135i M-Sport, 6MT Join Date: Nov 2012 Location: Southwest Michigan iTrader: (0)	Not to sound argumentative here, but I have to agree with OP. I just installed my BMS DCI 2 days ago and I have to say that I too feel a drop in torque. No tune and no other engine mods. Are we positive that there are no negative effects with these things. ....and just for clarity... I'm positive that I installed these babies exactly as instructed in the DIY (on this forum, and the one that came with the units). I inserted the tubes only about 1/2 an inch to leave clearance for the velocity stack, and inserted the cones as deep in the intake lines as I possibly could. The collars are also choked down as much as possible. Anyway, thoughts? Pictures of install: Attached Images __________________ "Valerie" : 2009 BMW 135i M-Sport, N54, 6MT, Black So far : LCI Blacklines, BMS LED 6000K AE's, Smoked LED side signals, BMS DCI, VMR 19's, 3mm spacers Soon : Kerscher front, rear, & side M skirts, aFe red scoops, white "Munich" racing stripes, BMW performance exhaust, 1Addicts.com decals, + many more. ;-)
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03-31-2013, 02:23 PM	#12
130BYEi Private 2 Rep 94 Posts Drives: 09 135i M-SPORT Join Date: Oct 2012 Location: PHILADELPHIA iTrader: (1)	Just keep stock box with drop in. I ran DCI. Better numbers with the drop in we're recorded, prolly due to heat soak.
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04-01-2013, 03:41 PM	#16
smellyborrelli Lieutenant 45 Rep 532 Posts Drives: 2008 135i Join Date: Sep 2011 Location: south jersey iTrader: (3)	I installed mine last week and Im cob stage1 aggressive. It seems like my rear tires break loose in second gear less than they did with the oem box..... I was thinking it was all in my head until I saw this thread
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