E90Post
 


Studio RSR
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Dual Cone Filters with JB+



Reply
 
Thread Tools Search this Thread
      08-03-2009, 09:20 AM   #1
R1000K3
Major
R1000K3's Avatar
United_States
55
Rep
1,311
Posts

Drives: 335i MT
Join Date: Jul 2009
Location: USA

iTrader: (0)

Dual Cone Filters with JB+

I've intstalled the DC filters today, and tested them with the JB+, which is set to max power as usual. I can't feel any difference with the butt-dyno and it seems clear they don't do much on this power level. The boost was 13.8 PSI today, previous max recording is 13.5 PSI, so it may have provided a few extra horses, but nothing that is noticeable. Saying this, I don't mean they are not doing any good, just that they are not meanful on JB+ level.
Appreciate 0
      08-03-2009, 09:36 AM   #2
Borsig
Captain
Borsig's Avatar
Germany
52
Rep
883
Posts

Drives: '09 335i ///M-Sport
Join Date: Dec 2008
Location: NC

iTrader: (3)

I really cant see you needing more flow at that level. The only thing you might do is eas the load on your turbos at the cost of higher IAT and less filtering, more dirt in the engine bay.

Id say you need to be on a JB3 or in that range of map 5-6 and up before you mighgt see a gain, but until independent tests are done, we may never know....

Even then it could be worth it on one day, and not worth it on another...
Appreciate 0
      08-03-2009, 09:39 AM   #3
R1000K3
Major
R1000K3's Avatar
United_States
55
Rep
1,311
Posts

Drives: 335i MT
Join Date: Jul 2009
Location: USA

iTrader: (0)

Agree
Appreciate 0
      08-03-2009, 12:52 PM   #4
JayKay335i
Banned
Egypt
186
Rep
5,046
Posts

Drives: ///M323 DCT
Join Date: Apr 2009
Location: North Dakota; its best DUHHHHHH

iTrader: (1)

+1 You gotta be putting some serious power down to make a change in intakes worthwhile. Up to The high 3's the stock airbox should suffice.
Appreciate 0
      08-03-2009, 01:47 PM   #5
Alan l.
Major General
Alan l.'s Avatar
5279
Rep
8,742
Posts

Drives: 2020 F95 X5M Competition
Join Date: Jun 2009
Location: United States

iTrader: (9)

I would think the factory setup is better since its pulling in cooler air compared to the DCI stuffed inside a scorching hot engine bay
Appreciate 0
      08-03-2009, 02:22 PM   #6
Robmaster
Colonel
Robmaster's Avatar
Switzerland
151
Rep
2,757
Posts

Drives: 2010 E82 135, 2005 E87 130i
Join Date: Apr 2007
Location: Switzerland

iTrader: (3)

what's your setting on the JB+??
Appreciate 0
      08-03-2009, 02:44 PM   #7
daniel3ooo
Private First Class
daniel3ooo's Avatar
11
Rep
168
Posts

Drives: 07 E92 335i BSM
Join Date: Jan 2007
Location: USA

iTrader: (0)

IMO the spooling sound alone is worth the $100 or so you spend on the DCI's
__________________
Appreciate 0
      08-03-2009, 02:51 PM   #8
Kroy
Brigadier General
Kroy's Avatar
United_States
173
Rep
3,032
Posts

Drives: E90
Join Date: Jul 2009
Location: Los Angeles, CA

iTrader: (1)

Quote:
Originally Posted by Robmaster View Post
what's your setting on the JB+??
OP is on 100%

Quote:
Originally Posted by daniel3ooo View Post
IMO the spooling sound alone is worth the $100 or so you spend on the DCI's
Yeah, I pretty much keep my DCI on for the spooling sound. Though the spooling is pretty quiet still.
Appreciate 0
      08-03-2009, 03:51 PM   #9
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
4899
Rep
115,955
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

Quote:
Originally Posted by R1000K3 View Post
I've intstalled the DC filters today, and tested them with the JB+, which is set to max power as usual. I can't feel any difference with the butt-dyno and it seems clear they don't do much on this power level. The boost was 13.8 PSI today, previous max recording is 13.5 PSI, so it may have provided a few extra horses, but nothing that is noticeable. Saying this, I don't mean they are not doing any good, just that they are not meanful on JB+ level.
You start to see the gains at 11-12psi, and they come from around 5000-7000rpm, basically wide open throttle. As with any change a little adaption time is needed to get the full benefit.

Mike
Appreciate 0
      08-03-2009, 03:59 PM   #10
Borsig
Captain
Borsig's Avatar
Germany
52
Rep
883
Posts

Drives: '09 335i ///M-Sport
Join Date: Dec 2008
Location: NC

iTrader: (3)

Quote:
Originally Posted by Alan l. View Post
I would think the factory setup is better since its pulling in cooler air compared to the DCI stuffed inside a scorching hot engine bay
this is my issue with the DCI.
Appreciate 0
      08-03-2009, 04:09 PM   #11
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
4899
Rep
115,955
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

Quote:
Originally Posted by Alan l. View Post
I would think the factory setup is better since its pulling in cooler air compared to the DCI stuffed inside a scorching hot engine bay
That is pretty much what everyone who hasn't done some testing/tuning with the intake says...

Mike
Appreciate 0
      08-03-2009, 05:57 PM   #12
JayKay335i
Banned
Egypt
186
Rep
5,046
Posts

Drives: ///M323 DCT
Join Date: Apr 2009
Location: North Dakota; its best DUHHHHHH

iTrader: (1)

Hmm.... Think its time I turn my jb+ to 75%
Appreciate 0
      08-03-2009, 06:00 PM   #13
Zeph
Major
United_States
27
Rep
1,410
Posts

Drives: 2008 E92 335i 6MT SGM CR/BD
Join Date: Jul 2008
Location: Southeast USA

iTrader: (0)

DCI is great as long as you have a good FMIC. I refuse to use them on a stock FMIC for heat reasons... not to mention it is probably pointless for airflow reasons due to the restrictive nature of the stock FMIC and piping/connections.
Appreciate 0
      08-03-2009, 06:23 PM   #14
1Sleeper
First Lieutenant
1Sleeper's Avatar
United_States
6
Rep
384
Posts

Drives: F31
Join Date: Jun 2009
Location: Where I need to be

iTrader: (1)

Quote:
Originally Posted by JayKay335i View Post
Hmm.... Think its time I turn my jb+ to 75%
I just did, its better.
Appreciate 0
      08-03-2009, 07:08 PM   #15
JayKay335i
Banned
Egypt
186
Rep
5,046
Posts

Drives: ///M323 DCT
Join Date: Apr 2009
Location: North Dakota; its best DUHHHHHH

iTrader: (1)

Quote:
Originally Posted by 1Sleeper View Post
I just did, its better.
I just did too. Deffinitely more of a throw you back in your seat feeling. The butt dyno likes it.
Appreciate 0
      08-03-2009, 07:40 PM   #16
Tortfeasor 335xi
Corporate Hack
Tortfeasor 335xi's Avatar
United_States
4
Rep
288
Posts

Drives: '08 335xi Coupe
Join Date: Mar 2008
Location: Princeton, NJ / Philly, PA

iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
That is pretty much what everyone who hasn't done some testing/tuning with the intake says...

Mike
Any dynos to share with us?
Hood up or hood down on those dynos?
Before and after?
__________________
New Car: 2008 335xi Coupe
Earlier Car: 2004 STi (got stolen)
Earlier Earlier Car: 1995 Mustang GT (416 whp and a blown engine)
Really Much Earlier Car: 1988 Mazda 626 TURBO
Appreciate 0
      08-03-2009, 10:48 PM   #17
Alan l.
Major General
Alan l.'s Avatar
5279
Rep
8,742
Posts

Drives: 2020 F95 X5M Competition
Join Date: Jun 2009
Location: United States

iTrader: (9)

I'm sure on a nice stretch of open highway the DCI would see some gains. In real world conditions with a combination of sitting in traffic etc.... No thanks.

Even if it shows a few hp gains it isn't worth raising the dealers suspicion when you go in for service or warranty work. Yeah you can argue that who in their right mind would go to the dealer with mods installed but at the same time are you really going to start pulling out every mod whenever your car goes back? Just my opinion

Alan
Appreciate 0
      08-03-2009, 11:11 PM   #18
roozie2001
Just some guy
roozie2001's Avatar
United_States
49
Rep
1,531
Posts

Drives: 2008 White 335i sedan
Join Date: Apr 2008
Location: Houston, TX

iTrader: (4)

im on map 7 jb3 as a daily driver i think im gonna get a CAI soon to try it out.
__________________
2008 BMW 335i/Sedan/Alpine White/Terra/Steptronic/Premium Package/Sports package/Comfort Access/USB/Sirius
Appreciate 0
      08-04-2009, 12:50 AM   #19
JayKay335i
Banned
Egypt
186
Rep
5,046
Posts

Drives: ///M323 DCT
Join Date: Apr 2009
Location: North Dakota; its best DUHHHHHH

iTrader: (1)

Quote:
Originally Posted by roozie2001 View Post
im on map 7 jb3 as a daily driver i think im gonna get a CAI soon to try it out.
Might as well just get the BMS. I dont think the CAIs proved to give any more HP over them at 3x the price.
Appreciate 0
      08-04-2009, 03:28 AM   #20
R1000K3
Major
R1000K3's Avatar
United_States
55
Rep
1,311
Posts

Drives: 335i MT
Join Date: Jul 2009
Location: USA

iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
You start to see the gains at 11-12psi, and they come from around 5000-7000rpm, basically wide open throttle. As with any change a little adaption time is needed to get the full benefit.

Mike

Thx Mike, I hope you are right. Can you confirm your statement with a dyno curve? I'll also give the filters another opportunity to show whether they provide gain with JB+ (at max-setting) or not and report my findings.
Appreciate 0
      08-04-2009, 03:33 AM   #21
Big Tom
Banned
Sweden
57
Rep
1,054
Posts

Drives: 335i n54 e92 MT
Join Date: Mar 2009
Location: Västerås

iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
That is pretty much what everyone who hasn't done some testing/tuning with the intake says...

Mike
I have done some testing with and without my homemade heatshield around the DCI-filters.
And with the heatshield mounted I did lower my AIT with 59 F (15 C), and the power feels much more stable then before.
When I was driving the car in the city at low speeds, I could feel a distinct loss of power without the heatshield.

The engine prefers cold air, even if you have a better IC mounted on your car.
Thats a fact.
Appreciate 0
      08-04-2009, 03:37 AM   #22
Big Tom
Banned
Sweden
57
Rep
1,054
Posts

Drives: 335i n54 e92 MT
Join Date: Mar 2009
Location: Västerås

iTrader: (0)

Quote:
Originally Posted by R1000K3 View Post
Thx Mike, I hope you are right. Can you confirm your statement with a dyno curve?
I'm afraid you can't show this on a dyno curve.
This is something you will only feel using your car IRL, without super effective high speed fans blowing on you engine during a dyno test...
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:46 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST