BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      09-23-2011, 03:57 PM   #23
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

Someone may, I'll eventually certainly have FBO #s for the cobb, after the fmic gets put on I'll re-dyno on Stg1, then again with downpipes on stg2+. Unless they come out with Stage 1+ before I get downpipes then I give that a shot.

@Jeff- According to Cobb's site the maps are indeed available to the Public but are still in Beta. I'm not sure what you mean by lowballed, cleraly the JB4 is not performing as intended but nothing was done to artificially lower its #s.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
      09-23-2011, 04:03 PM   #24
igzekyativ
Captain
United_States
142
Rep
758
Posts

Drives: 2007 BMW 328xi Wagon
Join Date: Apr 2011
Location: Asheville, NC

iTrader: (2)

Garage List
2007 BMW 328xi  [0.00]
Quote:
Originally Posted by Jeff@topgearsolutions View Post
The maps are actually available to the public, final release not beta.
***

On another note:
These Jb4 dyno graphs seem to be low balled in some aspect.


BETA
__________________
2007 328xi Wagon, Black Sapphire Metallic, Sports Package, Cold Weather Package, Rear PDC, Airlift kit with 3P mgmt, CF Akrym rep lip, LCI M-Tech front bumper, LUX Angel Eyes, Black Kidneys, LED Interior Lights, M3 Steering Wheel with Extended Billet DCT Paddles, 19" Staggered VMR 710's
Appreciate 0
      09-23-2011, 06:45 PM   #25
thebigragu99
Banned
45
Rep
828
Posts

Drives: 135 tuorbbo
Join Date: Aug 2011
Location: nyc

iTrader: (1)

Want to see. Tests done on a dynojet not a mustang ..
Appreciate 0
      09-23-2011, 08:23 PM   #26
Gunzaro
First Lieutenant
Cyprus
37
Rep
378
Posts

Drives: Speed Racer
Join Date: Jan 2011
Location: In transit

iTrader: (0)

Wow! Thanks for posting this!!

I am sooooooo glad I got a flash tune on my N54 - ESS. I was close to buy JB4 but having done my research I settled on a flash-at-home solution. When I take the car in for a service and all I have to do is hook it up and flash back to stock.

As for DCI I think Cobb recommend using the stock intake as per their testing. I am very happy Cobb did this research and made it public (note: INDEPENDANT TESTS - they gain no $$$ out of it). Again, less hassle come service time and warranty INTACT!
Appreciate 0
      09-23-2011, 09:26 PM   #27
thebigragu99
Banned
45
Rep
828
Posts

Drives: 135 tuorbbo
Join Date: Aug 2011
Location: nyc

iTrader: (1)

Quote:
Originally Posted by Gunzaro View Post
Wow! Thanks for posting this!!

I am sooooooo glad I got a flash tune on my N54 - ESS. I was close to buy JB4 but having done my research I settled on a flash-at-home solution. When I take the car in for a service and all I have to do is hook it up and flash back to stock.

As for DCI I think Cobb recommend using the stock intake as per their testing. I am very happy Cobb did this research and made it public (note: INDEPENDANT TESTS - they gain no $$$ out of it). Again, less hassle come service time and warranty INTACT!
Dci makes more power then the stock restrictive air box
Appreciate 0
      09-23-2011, 10:25 PM   #28
RPM90
Major General
890
Rep
7,047
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by sluflyer06 View Post
Its really in the title, JB4 felt about as good as the dyno looks which is all over the place, big timing corrections in 46F ambient or 95F didn't matter, running map 1. Its peak # is even misleading beacuse it was just a momentary peak. Cobb map looks smooth and power is way up.

Next up is a intercooler upgrade and see how much top end we pick up, start of run was 86F IAT end of run 136F (58% rise!!!)
Why do nearly all of these dyno show nearly no power below nearly 3000rpm?
These engines are known for low RPM torque yet these graphs don't show this.
Why?

I can't see these tunes creating that much lag given they are using the same small turbos.
Appreciate 0
      09-23-2011, 10:30 PM   #29
RPM90
Major General
890
Rep
7,047
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by TX78666 View Post
They're in line with stock numbers.

Automobile Mag Numbers



Another odd graph.

Peak torque doesn't occur at what BMW claims. There is quite a bit of lag there.

Also, the N55 supposedly builds it's torque a bit lower than the N54, and that graph shows the opposite.

Even with the high tech servotronic intake, the N54's torque curve is broader and smoother.
The N55 has a higher "peak" but it's more of a spike, and it dies quicker, which is contrary to what BMW claims about the N55.
These graphs don't support the claim that twin scroll has better low rpm torque build, nor that it has better high rpm torque.
Appreciate 0
      09-24-2011, 08:38 AM   #30
thebigragu99
Banned
45
Rep
828
Posts

Drives: 135 tuorbbo
Join Date: Aug 2011
Location: nyc

iTrader: (1)

Quote:
Originally Posted by RPM90 View Post
Why do nearly all of these dyno show nearly no power below nearly 3000rpm?
These engines are known for low RPM torque yet these graphs don't show this.
Why?

I can't see these tunes creating that much lag given they are using the same small turbos.

Sometimes doing that will cause knock !! Having the ramp up to hard on the low rpm is not healthy !There's a reason for this tuning aspect.also note,all turbos have lag on the low end..
Appreciate 0
      09-24-2011, 09:23 AM   #31
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

BMW's peak torque RPM claims have always mystified me...they must do it in 6th gear and go WOT at 1K rpm to get it to spool so early.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
      09-24-2011, 03:35 PM   #32
Kamal
Indian Stig
Kamal's Avatar
United_States
29
Rep
1,002
Posts

Drives: '03 540i M, '11 Ducati M796
Join Date: May 2008
Location: StL/CoMO

iTrader: (1)

Garage List
2008 BMW 135i  [7.56]
2011 BMW 328i  [8.00]
sluflyer06... you need to meet up with me and some of the other 1er guys in the area (Bogart, onefastman, RxBMW, dawild1, etc.) sometime.

Also, thanks for the dyno, it further justifies my Cobb AP purchase over the piggy tunes... how much did that shop charge you for dyno time? I'm thinking of organizing a bunch of local BMW guys for a dyno day sometime in the future.
__________________

2008 E82 N54 || Stage 2 -------- Gone to a good home.
Appreciate 0
      09-24-2011, 04:26 PM   #33
RPM90
Major General
890
Rep
7,047
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by thebigragu99 View Post
Sometimes doing that will cause knock !! Having the ramp up to hard on the low rpm is not healthy !There's a reason for this tuning aspect.also note,all turbos have lag on the low end..
Automobiles dyno did it.
Appreciate 0
      09-24-2011, 08:42 PM   #34
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

Quote:
Originally Posted by Kamal View Post
sluflyer06... you need to meet up with me and some of the other 1er guys in the area (Bogart, onefastman, RxBMW, dawild1, etc.) sometime.

Also, thanks for the dyno, it further justifies my Cobb AP purchase over the piggy tunes... how much did that shop charge you for dyno time? I'm thinking of organizing a bunch of local BMW guys for a dyno day sometime in the future.
Definitely, I didn't see the thread for the last meet until the day after or I'd have been there. Dyno time was $75 for 3 pulls w/wideband, I'm sure we could probably organize a dyno day, they seem to be pretty cool guys even if they're clueless with Euro cars but at least they will say outright they don't know a thing about them and they mostly work on/tune GM/Ford.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
      09-24-2011, 09:06 PM   #35
Kamal
Indian Stig
Kamal's Avatar
United_States
29
Rep
1,002
Posts

Drives: '03 540i M, '11 Ducati M796
Join Date: May 2008
Location: StL/CoMO

iTrader: (1)

Garage List
2008 BMW 135i  [7.56]
2011 BMW 328i  [8.00]
Quote:
Originally Posted by sluflyer06 View Post
Definitely, I didn't see the thread for the last meet until the day after or I'd have been there. Dyno time was $75 for 3 pulls w/wideband, I'm sure we could probably organize a dyno day, they seem to be pretty cool guys even if they're clueless with Euro cars but at least they will say outright they don't know a thing about them and they mostly work on/tune GM/Ford.
I was also thinking of contacting ET Tuning (Union, MO - bit of a drive) for a dyno day... they have Eurocar expertise and are a Cobb ProTuner. There's also Adrenaline in St. Peters (I think) but I've always thought of them as really JDM.

If you're on Facebook we have a pretty large StL BMW group... PM me if you want the link to the group (good way to get updates on meets, etc.).
__________________

2008 E82 N54 || Stage 2 -------- Gone to a good home.
Appreciate 0
      09-24-2011, 09:27 PM   #36
Gunzaro
First Lieutenant
Cyprus
37
Rep
378
Posts

Drives: Speed Racer
Join Date: Jan 2011
Location: In transit

iTrader: (0)

Quote:
Originally Posted by thebigragu99 View Post
Dci makes more power then the stock restrictive air box
Hate to say it champ but: http://www.1addicts.com/forums/showt...ock+intake+dci

Cobb stage 1 bear in mind, but still...

This is INDEPENDANT testing. And with 5 runs a piece to boot.

See also: http://blogs.cobbtuning.com/2011/06/...ir-box-vs-dci/

I have DCI too but I removed them in favor of the stock setup with a drop-in filter.

Note: ESS ALSO recommend the stock setup + drop-in. They do not actively sell DCI.

Higher boost levels + meth etc then yes, there is a benefit to DCI.
Appreciate 0
      09-24-2011, 09:30 PM   #37
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

Quote:
Originally Posted by Kamal View Post
I was also thinking of contacting ET Tuning (Union, MO - bit of a drive) for a dyno day... they have Eurocar expertise and are a Cobb ProTuner. There's also Adrenaline in St. Peters (I think) but I've always thought of them as really JDM.

If you're on Facebook we have a pretty large StL BMW group... PM me if you want the link to the group (good way to get updates on meets, etc.).
Ohhhh Adrenaline lol, I won't even get started on that place, but yes its a JDM place, guy name Chuck and his wife Suzy own it, they've got a pretty awesome R33 Skyline GT-S actually.

PM coming your way.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
      09-25-2011, 11:27 PM   #38
boostingwild
Private
boostingwild's Avatar
United_States
6
Rep
72
Posts

Drives: Fast!
Join Date: Jun 2010
Location: Lindenhurst

iTrader: (0)

Garage List
2008 135i  [0.00]
interesting .. might have to sell the JB4 now
__________________
2013 Shelby GT500
Appreciate 0
      09-26-2011, 08:22 AM   #39
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

11.9@114 looks like your making some great power so why sell? Cobb doensn't have meth maps yet anyway. Assuming everything is good. If it ain't broke don't fix it.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
      09-26-2011, 09:14 AM   #40
1speedbike
Brigadier General
1speedbike's Avatar
728
Rep
3,272
Posts

Drives: 2022 X4 M40i, 2008 135i
Join Date: Jun 2008
Location: MKE

iTrader: (15)

Quote:
Originally Posted by Gunzaro View Post
http://www.e90post.com/forums/showthread.php?t=588574

everyone always gets different results. it all depends on how much power you're looking to make, ambient temps, air pressure, altitude, etc
__________________
Scruffy's gonna die the way he lived... Mmhm.


Appreciate 0
      10-13-2011, 11:54 PM   #41
evilstib
Bimmer Newbie
Canada
22
Rep
312
Posts

Drives: CSM N54 Prem/Comf/Sound
Join Date: Aug 2010
Location: Bear's Ass Canada! (Fort Mac)

iTrader: (0)

Quote:
Originally Posted by 1speedbike View Post
http://www.e90post.com/forums/showthread.php?t=588574

everyone always gets different results. it all depends on how much power you're looking to make, ambient temps, air pressure, altitude, etc
+1
Appreciate 0
      10-14-2011, 02:19 AM   #42
LateralG'z
Private
LateralG'z's Avatar
1
Rep
80
Posts

Drives: Hopefully a 1M
Join Date: Oct 2011
Location: USA

iTrader: (0)

What were the AFR's for the Cobb Vs. jb4?
Appreciate 0
      10-14-2011, 10:56 PM   #43
FORCED AIR
Got Boost?
FORCED AIR's Avatar
United_States
7
Rep
234
Posts

Drives: 2010 135i, Msport
Join Date: May 2009
Location: The Desert

iTrader: (1)

Not a whole lot of info here...

What map was the JB4 on? How many adaption runs did you give each tune, stock, JB4 and Cobb? What tune did you drive to the dyno on?
__________________
- - My Car Domain - -
2010 BMW 135i AT, AW, ///M Sport
JB4|BMS DCI|MS 3" cattless DPs|Golf Tee|33% Tint|///M Pedals
Appreciate 0
      10-17-2011, 08:54 AM   #44
sluflyer06
Private First Class
United_States
6
Rep
170
Posts

Drives: 2008 135i MT
Join Date: Jul 2011
Location: St. Louis, MO

iTrader: (2)

Quote:
Originally Posted by FORCED AIR View Post
Not a whole lot of info here...

What map was the JB4 on? How many adaption runs did you give each tune, stock, JB4 and Cobb? What tune did you drive to the dyno on?
Map 1. Adaptation runs? I'd been running Map 1 for at least a week+ as a daily driver, so countless WOT runs. Stock didn't get any adaptation and doesn't show it needed any either. Drove to the dyno on Map 1.
__________________
08' 135i MT || Cobb Stage 1 'Aggressive' 4.01 Map | BMS DCI | Berk Mid Pipes | Maddad Eurosport Axleback | E93 FSB | M-Sport Black on Black | CDV Delete ||
Appreciate 0
Post 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 07:50 AM.




1addicts
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