E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Air Filter Dyno Testing - Round 2 - K&N vs Helene vs ITG vs BMC vs BMS vs Stock



Reply
 
Thread Tools Search this Thread
      04-28-2008, 02:57 AM   #1
Scott B
Private First Class
 
Drives: 1M
Join Date: Dec 2007
Location: NorCal

Posts: 174
iTrader: (1)

Air Filter Dyno Testing - Round 2 - K&N vs Helene vs ITG vs BMC vs BMS vs Stock

Round 2 of testing is finally complete. Round 1 of testing can be found here. This test included a few more filters and was performed slightly differently from Round 1. Another variable to consider is the ambient temperature, which was a toasty 94* during today's testing. The temperature during Round 1 was much cooler (60's if memory serves correct).

Filters tested: Stock, ITG, K&N, BMC, Helene, BMS

Test Vehicle: 2008 335xi E92 6AT with JB2 and no secondary cats

Test Procedure: Each pull was done in 3rd gear. Repeated 4th gear pulls on this load-bearing dyno causes overheating even with the factory oil cooler installed and plenty of airflow in the dyno cell. RPM sampling range was from 2k to 6.8k. Boost was sampled from the BOV vacuum line, and AFR was sampled at the right-side tailpipe using an Innovate LM-1 wideband. The vehicle was warmed up to the point of the oil temp gauge being 3 hash marks short of 250* for the first run to begin for each filter. After each run, the car was allowed a few minutes of cooldown until the oil temp again read 3 hash marks short of 250*. Four runs were done on each filter. The best run for each filter is shown below compared to the stock filter (stock is the solid line). Underscoring the impact of heat, you'll see that the best run for nearly every filter (save the BMC) was the first run. The other runs, grouped by filter, are also found below. Ambient temperature remained between 91* and 94* during the entire test with humidity at 32%.

Conclusion: Under these conditions, none of the aftermarket filters outperform the stock filter.









--------------------------------------











--------------------------------------











Scott B is offline   United_States
0
Reply With Quote
      04-28-2008, 03:10 AM   #2
shyestsparks
Captain
 
Drives: 335i sedan, 02 Altima VQ35DE-T
Join Date: Feb 2007
Location: Ca

Posts: 827
iTrader: (5)

Interesting.
shyestsparks is offline  
0
Reply With Quote
      04-28-2008, 03:18 AM   #3
Global Motorsports Group
New Member
 
Drives: Two Turbos, 2.7 Liters, 4 Door
Join Date: Sep 2007
Location: Newport Beach, CA

Posts: 29
iTrader: (0)

Thank you for that info, greatly appreciated! 91 Octane?

Need more fans in that room...
Global Motorsports Group is offline   United_States
0
Reply With Quote
      04-28-2008, 03:27 AM   #4
sambonator
Samtaro!
 
sambonator's Avatar
 
Drives: a car
Join Date: May 2007
Location: Milky Way Galaxy

Posts: 2,504
iTrader: (5)

So filters have no effect on stock cars. It would have been interesting to see a run with no filter installed with stock airbox, to get the theoretical max possible with any filter.

Also would be interesting to see effects of various filters with a tune.
__________________
sambonator is offline   United_States
0
Reply With Quote
      04-28-2008, 04:24 AM   #5
ChaneRZ
If You Aint First, You're last !!!
 
ChaneRZ's Avatar
 
Drives: 08 BMW 335i, 01 Honda Prelude
Join Date: Sep 2007
Location: California

Posts: 2,500
iTrader: (0)

interesting. need a full setup air intake to gain hp.
__________________

08 BMW BSM 335i 6MT (Sports, Premium, NAV, PDC, AS, IPOD, HD Radio, Rear Sunshade, OEM Alarm) Angel iBright V3, Luminics Fog Bulb, Turbo Tuner, K&N Drop in Filter, Dinan Exhaust, Dinan Pedals, Vorsteiner CF Front Lip, and CF Rear Diffuser. Ordered:08/25/07 Started: 09/09/07 Finished: 09/14/07 On Ship: 09/15/07 Arrived: 10/08/07 Delivered: 10/10/07
ChaneRZ is offline   United_States
0
Reply With Quote
      04-28-2008, 07:05 AM   #6
Leroi
Private First Class
 
Leroi's Avatar
 
Drives: 2007 335i TiAg MT
Join Date: Nov 2006
Location: Pittsburgh, PA

Posts: 165
iTrader: (8)

Garage List
2007 335i Coupe  [4.50]
Quote:
Originally Posted by sambonator View Post
So filters have no effect on stock cars...
Also would be interesting to see effects of various filters with a tune.
Test Vehicle: 2008 335xi E92 6AT with JB2 and no secondary cats

Interesting, when compared to round 1 results.
Leroi is offline   United_States
0
Reply With Quote
      04-28-2008, 07:44 AM   #7
marcvtec
Lieutenant Colonel
 
Drives: 335i
Join Date: Oct 2006
Location: toronto

Posts: 1,774
iTrader: (0)

Quote:
Originally Posted by sambonator View Post
So filters have no effect on stock cars. It would have been interesting to see a run with no filter installed with stock airbox, to get the theoretical max possible with any filter.

Also would be interesting to see effects of various filters with a tune.
He has a tune
marcvtec is offline  
0
Reply With Quote
      04-28-2008, 07:57 AM   #8
hotrod182
.
 
hotrod182's Avatar
 
Drives: 07 335i, 06 M3
Join Date: Dec 2006
Location: California

Posts: 3,457
iTrader: (0)

Quote:
Originally Posted by sambonator View Post
So filters have no effect on stock cars. It would have been interesting to see a run with no filter installed with stock airbox, to get the theoretical max possible with any filter.

Also would be interesting to see effects of various filters with a tune.
Someone already tested with no filter installed and reported no increase.
__________________
2011 Alpine 335d M-Sport 12.34 @ 110.48mph (WR)
2012 LEAF 130MPGe
2008 Black 335i Sedan. 11.11@ 129.47 mph,(8.39 sec 60-130 stock turboWR)
2008 Monaco Blue JB3 2.0 335i Coupe. 11.33 @ 132.77 mph (N54 trap speed WR)
60-130mph: 6.95 seconds stock turbo WR (.16% slope)
hotrod182 is offline  
0
Reply With Quote
      04-28-2008, 08:17 AM   #9
timtech
Lieutenant
 
timtech's Avatar
 
Drives: 335
Join Date: May 2007
Location: Over there

Posts: 505
iTrader: (4)

Quote:
Originally Posted by Scott B View Post
Round 2 of testing is finally complete. Round 1 of testing can be found here.

Conclusion: Under these conditions, none of the aftermarket filters outperform the stock filter.
Very interesting results compared to Round 1. Thanks for all the time and work.
timtech is offline  
0
Reply With Quote
      04-28-2008, 08:51 AM   #10
who's ur daddy?
Colonel
 
Drives: Canada's first and only 323xi
Join Date: Aug 2007
Location: Mind Your Own Fkin Business

Posts: 2,904
iTrader: (3)

What about adaptation?

Also, perhaps the better indicator is the 1/4 track instead of a dyno with fans.

But overall, I am impressed with the effort. Kudos to you for providing impartial evidence for the N54 community.
who's ur daddy? is offline  
0
Reply With Quote
      04-28-2008, 08:56 AM   #11
cn555ic
BimmerPost Supporting Vendor

 
cn555ic's Avatar
 
Drives: The Coding Guy
Join Date: Jun 2007
Location: Call 917-939-4980

Posts: 18,227
iTrader: (5)

Send a message via Yahoo to cn555ic
so basically from your dynos it showing that there is no effect of which brand used, the gains are nominal to the point that u can say all these companies stating gains in hp is not as great as advertised!!! Hmmmmmmm!!!!
__________________

Coding E and F New York 917-939-4980
cn555ic is offline   United_States
0
Reply With Quote
      04-28-2008, 09:19 AM   #12
e90AW335i
Major General
 
Drives: e90 335i
Join Date: Sep 2007
Location: ......

Posts: 6,608
iTrader: (4)

Quote:
Originally Posted by cn555ic View Post
so basically from your dynos it showing that there is no effect of which brand used, the gains are nominal to the point that u can say all these companies stating gains in hp is not as great as advertised!!! Hmmmmmmm!!!!
If that is the case then I am sure that would apple to UR's CAI as well.....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
e90AW335i is offline   United_States
0
Reply With Quote
      04-28-2008, 09:32 AM   #13
Orb
Lieutenant Colonel
 
Drives: 335
Join Date: Jun 2006
Location: Canada

Posts: 1,734
iTrader: (1)

Quote:
Originally Posted by Scott B View Post
Round 2 of testing is finally complete. Round 1 of testing can be found here. This test included a few more filters and was performed slightly differently from Round 1. Another variable to consider is the ambient temperature, which was a toasty 94* during today's testing. The temperature during Round 1 was much cooler (60's if memory serves correct).

Filters tested: Stock, ITG, K&N, BMC, Helene, BMS

Test Vehicle: 2008 335xi E92 6AT with JB2 and no secondary cats

Test Procedure: Each pull was done in 3rd gear. Repeated 4th gear pulls on this load-bearing dyno causes overheating even with the factory oil cooler installed and plenty of airflow in the dyno cell. RPM sampling range was from 2k to 6.8k. Boost was sampled from the BOV vacuum line, and AFR was sampled at the right-side tailpipe using an Innovate LM-1 wideband. The vehicle was warmed up to the point of the oil temp gauge being 3 hash marks short of 250* for the first run to begin for each filter. After each run, the car was allowed a few minutes of cooldown until the oil temp again read 3 hash marks short of 250*. Four runs were done on each filter. The best run for each filter is shown below compared to the stock filter (stock is the solid line). Underscoring the impact of heat, you'll see that the best run for nearly every filter (save the BMC) was the first run. The other runs, grouped by filter, are also found below. Ambient temperature remained between 91* and 94* during the entire test with humidity at 32%.

Conclusion: Under these conditions, none of the aftermarket filters outperform the stock filter.
]
Very well done test and first here for completeness of information. I will PM you some info about correlating the previous results with this test. Given the condition I’m not surprised with the result.

PM me the info you have for ambient temperature and relative humidity of the previous test.

Orb
Orb is offline   No_Country
0
Reply With Quote
      04-28-2008, 10:14 AM   #14
DrewKo
Lieutenant Colonel
 
DrewKo's Avatar
 
Drives: 335i Montego Blue Saddle Brown
Join Date: Jan 2007
Location: Atlanta, GA

Posts: 1,568
iTrader: (4)

Garage List
2007 335i  [0.00]
But the previou test you ran showed some gains over stock, so what are we to conclude?
DrewKo is offline  
0
Reply With Quote
      04-28-2008, 11:05 AM   #15
sambonator
Samtaro!
 
sambonator's Avatar
 
Drives: a car
Join Date: May 2007
Location: Milky Way Galaxy

Posts: 2,504
iTrader: (5)

Quote:
Originally Posted by Leroi View Post
Test Vehicle: 2008 335xi E92 6AT with JB2 and no secondary cats

Interesting, when compared to round 1 results.

Why are power levels so low? I just saw the graphs and concluded it was stock. 272whp...

Quote:
Originally Posted by DrewKo View Post
But the previou test you ran showed some gains over stock, so what are we to conclude?
...that any gains from filters are statistically insignificant...?
...or that we can criticize the tester for not allowing the ECU to adapt to each filter...?
__________________
sambonator is offline   United_States
0
Reply With Quote
      04-28-2008, 11:06 AM   #16
NRG
Lieutenant Colonel
 
NRG's Avatar
 
Drives: 2012 X5 35d
Join Date: Mar 2007
Location: Montreal QC

Posts: 1,659
iTrader: (5)

Very interesting info, and thanks for the time you spent collecting and testing all those filters. It looks like the BMC is still on top, even by a bit. This thread should be a sticky 100%.
__________________

Retired: 2005 N52 E90 330i Sport 6AT
Retired: 2007 N54 E92 335i Sport 6AT

Current: 2012 M57 E70 X5 xDrive35D
NRG is offline   Russian Federation
0
Reply With Quote
      04-28-2008, 11:12 AM   #17
drphil71
First Lieutenant
 
drphil71's Avatar
 
Drives: E92 335i
Join Date: Jun 2007
Location: South Florida

Posts: 308
iTrader: (1)

How many of these vendors are actually on the forum? Just Helene? BMC?

Maybe chime in?
__________________
E92 335i
Sig patent pending...
drphil71 is offline   United_States
0
Reply With Quote
      04-28-2008, 11:26 AM   #18
Bubbles
Green Bastard
 
Bubbles's Avatar
 
Drives: ZCP-Powered
Join Date: Jun 2007
Location: Bishop Bend

Posts: 3,542
iTrader: (3)

Nice work, OP.
__________________
Bubbles is offline   Cayman Islands
0
Reply With Quote
      04-28-2008, 12:01 PM   #19
kitw
Colonel
 
kitw's Avatar
 
Drives: 2013 C4S cab/2011 E90 M3
Join Date: Jun 2007
Location: Bay Area, CA

Posts: 2,198
iTrader: (14)

Take a look at the stock intake box. When air flows up through the filter and then across that barrier, and down to the intake horns, the cross section gets pretty small. That is going to be the largest restriction.

I just ordered some ITG cone filters, with an integrated velocity stack, that slip into the stock air intake tubes. I'll keep y'all updated when I receive them in a week or two.
kitw is offline  
0
Reply With Quote
      04-28-2008, 12:27 PM   #20
e90AW335i
Major General
 
Drives: e90 335i
Join Date: Sep 2007
Location: ......

Posts: 6,608
iTrader: (4)

Response to the filter testing per Terry Burger@BMS:

Quote:
Originally Posted by Terry Burger
Hi Scott,

It was a pleasure hanging out and helping with the test. I can definitely vouch for the consistency of the testing, and although the results are surprising I believe they are accurate.

My take on the BMS filter:

I'm not sure if it is mentioned but this testing was a lot harder than the dyno testing I've done in the past. It was performed on a Mustang load dyno, with the hood closed, in a sealed room. Airflow across the car was 30-40mph. The BMS filter tested was from my car with around 3,000 miles on it. I considered testing a brand new filter but figured a used filter would give better "real world" results. The cars were run a few times on the dyno to get them adapted and ensure everything was hot before testing started. Ambient temps were in the 90s and we used 91 octane, so these were pretty much the worst possible conditions to showcase the filter as far as heat is concerned.

But despite that this testing proved the "sucking hot air" concern is moot. Even with much less airflow than you would see on the road, it made just as much horsepower as all the drop in filters using the stock airbox. And I'm confident if we were able to turn boost up a bit that it would outperform the rest. I've done a lot of VBOX road testing and have verified the filter works on the street.

And IMHO the BMS filter was the best sounding BY FAR....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
e90AW335i is offline   United_States
0
Reply With Quote
      04-28-2008, 12:40 PM   #21
jcarlucci1
Lieutenant Colonel
 
Drives: Jet Black 335i
Join Date: Mar 2007
Location: Tampa

Posts: 1,638
iTrader: (10)

looks like the bms performed the best..
jcarlucci1 is offline  
0
Reply With Quote
      04-28-2008, 12:48 PM   #22
fedinand
Major
 
fedinand's Avatar
 
Drives: '11 X3, '11 GTI
Join Date: May 2007
Location: MN

Posts: 1,271
iTrader: (6)

Quote:
Originally Posted by jcarlucci1 View Post
looks like the bms performed the best..
Looked like the BMC performed the best to me....
fedinand is offline   United_States
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 10:04 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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