E90Post
 


European Auto Source
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cobb Butt Dyno.



Reply
 
Thread Tools Search this Thread
      07-11-2014, 07:52 AM   #1
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

Cobb Butt Dyno.

I picked up a used Cobb V3 to give it a try, on my 2010 335xi. Loaded the Sport Map not sure what I was expecting, but I was not able to tell a night and day difference. I am not sure what stock 0-60 times are as I never timed any before the Cobb but after I get low 5 seconds 5.02-5.06 got one as low as 4.89 with the the performance feature on the Cobb. Are those times legit should they be faster?
nitjt is online now  
0
Reply With Quote
      07-11-2014, 07:55 AM   #2
135Pats
Can't decide....
 
135Pats's Avatar
 
Drives: 135i
Join Date: May 2012
Location: Maryland

Posts: 5,372
iTrader: (1)

What "stage" of maps? The sport advance curves are all pretty conservative but you'll still see a big bump in power from stock.
__________________
E88 FBO N54 Alpinweiss/Coral Red/Meisterschaft Race/Berk Resonated/Macht Schnell 3"/ER CP/Synapse/VRSF FMIC/FFTEC LPFP/HFS-4 DO Stainless Lines/BMS DCI/BMS Thermostat Delete/Rob Beck PCV Valve + Cap/BMS OCC/PTF E50/ST Coilovers/M3 Front Control Arms + Tension Rods/M3 Subframe Bushings/M3 FSB/DINAN Camber Plates/Apex ARC-8/Project Kics/Macht Schnell Studs/VAC Hubs/Rogue Transmission Mounts/Alpina TCU Flash/Icarbon/Kerscher/BMW Performance
135Pats is online now   United_States
0
Reply With Quote
      07-11-2014, 08:01 AM   #3
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

Stage 1 I have no other mods.
nitjt is online now  
0
Reply With Quote
      07-11-2014, 08:03 AM   #4
135Pats
Can't decide....
 
135Pats's Avatar
 
Drives: 135i
Join Date: May 2012
Location: Maryland

Posts: 5,372
iTrader: (1)

In the real world that sounds about right. If you wanted to really get after it you could launch harder than that with 4WD and shave some time off.
__________________
E88 FBO N54 Alpinweiss/Coral Red/Meisterschaft Race/Berk Resonated/Macht Schnell 3"/ER CP/Synapse/VRSF FMIC/FFTEC LPFP/HFS-4 DO Stainless Lines/BMS DCI/BMS Thermostat Delete/Rob Beck PCV Valve + Cap/BMS OCC/PTF E50/ST Coilovers/M3 Front Control Arms + Tension Rods/M3 Subframe Bushings/M3 FSB/DINAN Camber Plates/Apex ARC-8/Project Kics/Macht Schnell Studs/VAC Hubs/Rogue Transmission Mounts/Alpina TCU Flash/Icarbon/Kerscher/BMW Performance
135Pats is online now   United_States
0
Reply With Quote
      07-11-2014, 08:22 AM   #5
FCobra94
Major
 
FCobra94's Avatar
 
Drives: '07 E90 335i
Join Date: Dec 2011
Location: MD

Posts: 1,248
iTrader: (0)

You have to go WOT a few times for the maps to adapt. Give it a few days and try again. Even with the most conservative stage 1 map I was able to tell a huge difference from stock; even during hot/humid summer testing.
__________________
'07 E90 335i - Automagic - Non-sport
Cobb AP|Alpina Flash|VRSF 7" FMIC|VRSF CP|TIAL BOV|cp-e DCI|Bilstein B6|E93 M3 FSB|SP Lowering Perches
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10mm rear spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 15mm rear spacers
FCobra94 is online now  
0
Reply With Quote
      07-11-2014, 08:27 AM   #6
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

I thought the car was fast before, I was under the impression that once I loaded this map it would ignite a rocket. I guess my Butt Dyno is just not good enough to tell a huge difference. I just changed the plugs and did the walnut blast 1000 miles ago does it take a few hundred miles to get used to the flash or should I be able to tell right away?
nitjt is online now  
0
Reply With Quote
      07-11-2014, 08:35 AM   #7
FCobra94
Major
 
FCobra94's Avatar
 
Drives: '07 E90 335i
Join Date: Dec 2011
Location: MD

Posts: 1,248
iTrader: (0)

Did you not read anything I just wrote? How many miles/days/engine starts/etc. has it been since you loaded the maps initially? Including some information and maybe actually data logging* might help.

*Search this site for the term "data logging" for more information on what this is/how to do it with the AP before asking.
__________________
'07 E90 335i - Automagic - Non-sport
Cobb AP|Alpina Flash|VRSF 7" FMIC|VRSF CP|TIAL BOV|cp-e DCI|Bilstein B6|E93 M3 FSB|SP Lowering Perches
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10mm rear spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 15mm rear spacers
FCobra94 is online now  
0
Reply With Quote
      07-11-2014, 08:36 AM   #8
Jklad
Lieutenant
 
Jklad's Avatar
 
Drives: 2007 335i Coupe
Join Date: Nov 2010
Location: Palatine, IL

Posts: 471
iTrader: (0)

Not a few hundred, prob just a few pulls over a couple days.
Jklad is offline   United_States
0
Reply With Quote
      07-11-2014, 08:50 AM   #9
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

Cool I will give it more time, I can't say there is no difference but I was expecting no doubt about it difference. What's a reasonable 0-60 expectation with this tune? What's a stock N54 do 0-60 5.5 seconds?
nitjt is online now  
0
Reply With Quote
      07-11-2014, 09:30 AM   #10
ihc95
Major
 
ihc95's Avatar
 
Drives: TiAg E92 335i
Join Date: Jul 2011
Location: NJ

Posts: 1,135
iTrader: (1)

Garage List
Quote:
Originally Posted by nitjt View Post
Cool I will give it more time, I can't say there is no difference but I was expecting no doubt about it difference. What's a reasonable 0-60 expectation with this tune? What's a stock N54 do 0-60 5.5 seconds?
For an XI a reasonable time would be about 5 sec flat, maybe a bit more. Who cares about 0-60 anyway? My friend has a modded Roush Mustang and he can't get it to 60 in under 5 sec to save his life but it still feels fast as hell and that's all the matters.
ihc95 is offline  
0
Reply With Quote
      07-11-2014, 10:09 AM   #11
e92_enthusiast_1
Lieutenant Colonel
 
e92_enthusiast_1's Avatar
 
Drives: '10 AW/CR e92 6mt 335i
Join Date: Mar 2012
Location: Chandler, AZ

Posts: 1,589
iTrader: (1)

Garage List
2010 BMW 335i  [0.00]
Stage 2 is where its at. The butt dyno feeling goes away after getting use to it and I'm assuming that can happen with any power increase stg 1 or 2. At least it kinda did for me (stg 2). Datalogs show the power is there though.
e92_enthusiast_1 is offline   United_States
0
Reply With Quote
      07-11-2014, 10:46 AM   #12
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

My brother-in-law got a X135, a friend just picked up a VW GTI, and I want to leave no doubt what so ever who's car is faster.
nitjt is online now  
0
Reply With Quote
      07-11-2014, 04:22 PM   #13
FCobra94
Major
 
FCobra94's Avatar
 
Drives: '07 E90 335i
Join Date: Dec 2011
Location: MD

Posts: 1,248
iTrader: (0)

Are you, like, 15 years old or something? What difference does it make...If it's that big of a deal, you should all go to the local test 'n tune and see what each car runs. The guy who comes in last buys the first round of pizza @ Chuckie Cheese.
__________________
'07 E90 335i - Automagic - Non-sport
Cobb AP|Alpina Flash|VRSF 7" FMIC|VRSF CP|TIAL BOV|cp-e DCI|Bilstein B6|E93 M3 FSB|SP Lowering Perches
Summer: Sonic Tuning ST100 - 18x8.5 ET35 - Conti DWS 245/40/18 - 10mm rear spacers
Winter: Style 159 - 17x8 ET34 - Michelin X-Ice Xi2 225/50/17 - 15mm rear spacers
FCobra94 is online now  
0
Reply With Quote
      07-12-2014, 07:45 AM   #14
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

There is a Chuckie Cheese right by my house!
nitjt is online now  
0
Reply With Quote
      07-12-2014, 04:12 PM   #15
e92_enthusiast_1
Lieutenant Colonel
 
e92_enthusiast_1's Avatar
 
Drives: '10 AW/CR e92 6mt 335i
Join Date: Mar 2012
Location: Chandler, AZ

Posts: 1,589
iTrader: (1)

Garage List
2010 BMW 335i  [0.00]
Get some cobb logs 3rd-4th gear pull WOT w/o DTC on. See what it looks like. Allen@PTF said my tunes too aggressive for AZ 91ACN not so much through the mid rpms but between shifts I'm getting corrections which I'm sure is causing power loss. Going to try a few gallons of e85 and report back soon.

Quote:
Originally Posted by nitjt View Post
I picked up a used Cobb V3 to give it a try, on my 2010 335xi. Loaded the Sport Map not sure what I was expecting, but I was not able to tell a night and day difference. I am not sure what stock 0-60 times are as I never timed any before the Cobb but after I get low 5 seconds 5.02-5.06 got one as low as 4.89 with the the performance feature on the Cobb. Are those times legit should they be faster?
__________________
COBB AP Stg 2+ FMIC Sport | VRSF 3" Catless DP | COBB FMIC | BMS DCI | CP-e Metal Charge Pipe | 370+ whp/435+ lb.ft torque
e92_enthusiast_1 is offline   United_States
0
Reply With Quote
      07-13-2014, 10:01 AM   #16
gtaccord
Major
 
Drives: 2009 BMW 335xi
Join Date: Feb 2012
Location: Maryland

Posts: 1,024
iTrader: (6)

Garage List
Load the stage 1 aggressive map. You should feel a difference then.
gtaccord is offline   United_States
0
Reply With Quote
      07-13-2014, 09:24 PM   #17
Ovitrix335
Private First Class
 
Ovitrix335's Avatar
 
Drives: Bmw 335i
Join Date: Aug 2011
Location: Michigan

Posts: 198
iTrader: (5)

Invest in a fmic, catless dps and an e85 protune.... That's where it's at
Ovitrix335 is offline   United_States
0
Reply With Quote
      07-13-2014, 09:42 PM   #18
Jklad
Lieutenant
 
Jklad's Avatar
 
Drives: 2007 335i Coupe
Join Date: Nov 2010
Location: Palatine, IL

Posts: 471
iTrader: (0)

Idk, I notice night and day diff going from stock to stage 1 sport, then to stage 1+ sport. It gives it a good hard kick to the ass when you floor it, relative to stock.
Jklad is offline   United_States
0
Reply With Quote
      07-14-2014, 01:22 AM   #19
dbworld4k
Gearhead
 
Drives: E92 335i + E39 M5
Join Date: Mar 2008
Location: [X] Chicago [ ] Toronto

Posts: 385
iTrader: (0)

My car feels like a torque monster after I loaded the Cobb Stage 1 Aggressive tune. The power upgrade was massive right off the bat. It's legitimately night and day - something isn't right with your car...
__________________

'09 335i Alpine White + Coral Red || '02 ///M5 Imola Red + Imola Red
dbworld4k is offline   Canada
0
Reply With Quote
      07-14-2014, 04:37 AM   #20
e92_enthusiast_1
Lieutenant Colonel
 
e92_enthusiast_1's Avatar
 
Drives: '10 AW/CR e92 6mt 335i
Join Date: Mar 2012
Location: Chandler, AZ

Posts: 1,589
iTrader: (1)

Garage List
2010 BMW 335i  [0.00]
Stg2 fmic+ st sport feels real good after fixing the timing corrections (bad AZ gas; added a few e85 gallons)
e92_enthusiast_1 is offline   United_States
0
Reply With Quote
      07-14-2014, 07:29 AM   #21
nitjt
First Lieutenant
 
Drives: 335 xi sedan
Join Date: Nov 2012
Location: dfw

Posts: 332
iTrader: (10)

It does feel quicker now after a few WOT pulls, I did load the Aggressive map for a day, and can definitely feel a difference from Sport to Aggressive.
nitjt is online now  
0
Reply With Quote
      07-14-2014, 02:51 PM   #22
chrono
Private
 
Drives: 2009 335i e93
Join Date: Mar 2014
Location: United States

Posts: 55
iTrader: (0)

Make sure you run the stock throttle and not linear throttle maps. LT just feels different/slow even with the aggressive map. You should definitely feel a difference with ST sport or aggressive. If you go WOT with stage 1 aggressive with DTC off you're going to feel a scary difference. Scary as in holy shit my car can make this power? lol
chrono is offline  
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 01:41 PM.




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