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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > BMS DCi WOW!



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      01-10-2012, 04:42 PM   #1
TNganele
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BMS DCi WOW!

So i just installed the BMS Dci's after my friend reffered them to me, I already had a jb3 so it was no decision as to what my next mod would be, and all I can say is WOW. I raised the jb3 to map 5 and took the car for a little test run and the sound of the turbo's mixed with the added power is AMAZING! I love this intake!
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      01-10-2012, 04:50 PM   #2
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dci's to me were just noise makers lol
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      01-10-2012, 04:54 PM   #3
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Quote:
Originally Posted by StretchNpoke View Post
dci's to me were just noise makers lol
+1 on this. I couldn't tell any difference performance wise. If you like the sound of a DCI get a set of catless DPs and you'll be in heaven
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      01-10-2012, 04:56 PM   #4
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There isn't any performance gain, its all just sounds.
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      01-10-2012, 04:59 PM   #5
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I think op felt the map5 power increase + spool noises got him excited.
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      01-10-2012, 05:10 PM   #6
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Quote:
Originally Posted by E90SoFlo View Post
There isn't any performance gain, its all just sounds.
Right... Proven 10-25rw gains with the DCI. The more boost you run up top the higher the gains. The extra sound is nice a nice side effect. And OP, time to upgrade to the JB4!





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      01-10-2012, 05:17 PM   #7
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like mike said you need to run higher boost to really see the benefits
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      01-10-2012, 05:20 PM   #8
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If a DCI gives you a realistic 25rwhp I'm gonna eat my own keyboard
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      01-10-2012, 05:30 PM   #9
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I don't understand why some people on this forum love to argue against proof.
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      01-10-2012, 05:53 PM   #10
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Quote:
Originally Posted by TNganele View Post
I don't understand why some people on this forum love to argue against proof.
The Dyno graph is a little Biased considering Im betting there was a GIANT fan blowing on the front end of that car.

25WHP is un-realistic for it.
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      01-10-2012, 05:54 PM   #11
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How about this proof then: http://blogs.cobbtuning.com/2011/06/...ir-box-vs-dci/

I'm not looking to start a war. But I don't think it's right to tell people a DCI adds 25rwhp. That's false advertisement in my book. Either way. I'll leave it alone from now on.
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      01-10-2012, 06:01 PM   #12
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Quote:
Originally Posted by TNganele View Post
I don't understand why some people on this forum love to argue against proof.
Its easy actually, just turn up boost levels and say its still the same boost + dci and bam its on the dyno plot OR just give 90% throttle til you hit 5k and give it 100% WOT youll easily see the whp spike increase on the plot. Not saying everyone does this but its easier to push products.
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      01-10-2012, 06:04 PM   #13
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Quote:
Originally Posted by Brey335i View Post
How about this proof then: http://blogs.cobbtuning.com/2011/06/...ir-box-vs-dci/

I'm not looking to start a war. But I don't think it's right to tell people a DCI adds 25rwhp. That's false advertisement in my book. Either way. I'll leave it alone from now on.
yeah but that's with the cobb and it doesnt give the gains of the jb3, as the graph shows it is significantly lower, so im guessing it runs lower boost so the intake is not needing more air than it can provide.
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      01-10-2012, 06:11 PM   #14
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Quote:
Originally Posted by TNganele View Post
yeah but that's with the cobb and it doesnt give the gains of the jb3, as the graph shows it is significantly lower, so im guessing it runs lower boost so the intake is not needing more air than it can provide.
Are you serious!!???!!!
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      01-10-2012, 06:12 PM   #15
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Quote:
Originally Posted by Brey335i View Post
How about this proof then: http://blogs.cobbtuning.com/2011/06/...ir-box-vs-dci/

I'm not looking to start a war. But I don't think it's right to tell people a DCI adds 25rwhp. That's false advertisement in my book. Either way. I'll leave it alone from now on.
Cobb's testing was flawed, they picked up nice gains with the air lid off, which is functionally equivalent to the DCI. Besides they suggest a dual cone intake with their Stage2 maps. And no fan is going to produce what you get with 50-100mph of wind on the road. All the very fast cars have one thing in common. Dual cone intakes. Because they work.

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      01-10-2012, 06:14 PM   #16
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Right... Proven 10-25rw gains with the DCI. The more boost you run up top the higher the gains. The extra sound is nice a nice side effect. And OP, time to upgrade to the JB4!

Mike
Kind of deceiving to say that. The gains are for a small period of the RPM range, and way past the sweet spot of the gear pull. Sure you get a little bump at 5500 rpms, but it's not like most people spend a lot of time in the top 1000rpm below redline.

Where the gains happens matters.

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      01-10-2012, 06:25 PM   #17
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Quote:
Originally Posted by E90SoFlo View Post
Are you serious!!???!!!
How would i not be, people with the jb3 on map 5 w/ a dci make 360-370 whp people with the cobb make 320, are you looking at the graphs?
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      01-10-2012, 06:28 PM   #18
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Quote:
Originally Posted by TNganele View Post
How would i not be, people with the jb3 on map 5 w/ a dci make 360-370 whp people with the cobb make 320, are you looking at the graphs?
Sigh.. People can make 400whp with either tune. There is different "maps" for both tunes.

DCI will not get your 25whp unless you are on a dyne with a Big fan blowing directly onto the filters. Which you can probably do the same with the stock air box with the top open.

I have the DCI because I like the extra sound, not because i expect any power gains.
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      01-10-2012, 06:36 PM   #19
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Quote:
Originally Posted by E90SoFlo View Post
Sigh.. People can make 400whp with either tune. There is different "maps" for both tunes.

DCI will not get your 25whp unless you are on a dyne with a Big fan blowing directly onto the filters. Which you can probably do the same with the stock air box with the top open.

I have the DCI because I like the extra sound, not because i expect any power gains.
every graph i have seen has the cobb making much lower hp even on cars with many mods and push low 300's for example :
http://www.e90post.com/forums/showthread.php?t=510190

I raced my friend w/ a 335i jb3 map 5 and dci's vs. me just jb3 on map 5 and he won by a decent amount so that would tell me that they are in fact doing something other than producing sound.
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      01-10-2012, 06:39 PM   #20
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      01-10-2012, 06:40 PM   #21
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Quote:
Originally Posted by TNganele View Post
every graph i have seen has the cobb making much lower hp even on cars with many mods and push low 300's for example :
http://www.e90post.com/forums/showthread.php?t=510190

I raced my friend w/ a 335i jb3 map 5 and dci's vs. me just jb3 on map 5 and he won by a decent amount so that would tell me that they are in fact doing something other than producing sound.
His stock WHP was 252, his cobb final was 377, on a mustang dyno. Whats your point? If his base dyno was normal for our cars (270-280) he would have been right at 400.

My best guess is your friend is a better driver


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smh lol
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      01-10-2012, 06:47 PM   #22
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My best guess is your friend is a better driver




smh lol
Explain to me exactly how someone is a better driver in a straight line?
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