Datalogging using Cobb AP for an N55 w/JB4

snaimpally · 12-08-2014, 07:43 PM

I have an N55 with Pure Turbos stage 1 and JB4. I purchased a tune from Pro Tuning Freaks and they want me to log using a Cobb AP (which I have). Are there any issues with logging using Cobb AP when the engine has a JB4?

PURE135i · 12-08-2014, 07:44 PM

jb4 needs to be in map 0

snaimpally · 12-08-2014, 07:51 PM

Quote:

Originally Posted by PURE135i

jb4 needs to be in map 0

Okay, thanks

rr006rbc · 12-09-2014, 04:18 PM

You should just remove it just in case though..don't want to cause conflicts between both programmers.

PURE135i · 12-09-2014, 05:21 PM

Quote:

Originally Posted by rr006rbc

You should just remove it just in case though..don't want to cause conflicts between both programmers.

i run a stacked tune both JB4 and cobb flash with BMS file

issue free

DrRobert · 12-10-2014, 01:49 AM

What do you gain by running both JB4 and custom Cobb tune?

PURE135i · 12-10-2014, 10:29 AM

Quote:

Originally Posted by DrRobert

What do you gain by running both JB4 and custom Cobb tune?

a DCT trans that bangs gears and doesnt slip anymore

better looking AFRs/timing tweaks for E85. JB4 controls boost flash does the rest

DrRobert · 12-10-2014, 12:13 PM

OK, thanks. Sounds like there would be no benefit to running both tunes with a 6AT on pump gas then.

snaimpally · 12-10-2014, 08:15 PM

Quote:

Originally Posted by DrRobert

What do you gain by running both JB4 and custom Cobb tune?

Cobb can control certain parameters that the JB4 cannot. Terry offers a free Cobb tune if you are running JB4 and PT S1. Navigate over to the N54Tuning forums for more info.

Even without PT S1, quite a few people run both JB4 and Cobb, but you (or your tuner) have to know what you are doing.

Anyway, I just mentioned it as an aside. Since you already have a custom Cobb tune, just have your tuner create a new tune after the turbo is installed.

12-08-2014, 07:43 PM	#1
snaimpally Major 177 Rep 1,245 Posts Drives: 2022 F44 M235i GC Join Date: Mar 2014 Location: Austin, TX iTrader: (9) Garage List 2022 M235i [0.00]	Datalogging using Cobb AP for an N55 w/JB4 I have an N55 with Pure Turbos stage 1 and JB4. I purchased a tune from Pro Tuning Freaks and they want me to log using a Cobb AP (which I have). Are there any issues with logging using Cobb AP when the engine has a JB4?
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12-08-2014, 07:44 PM	#2
PURE135i Private First Class 17 Rep 164 Posts Drives: dct beast Join Date: Nov 2014 Location: so cal iTrader: (0)	jb4 needs to be in map 0
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12-09-2014, 04:18 PM	#4
rr006rbc Colonel 1206 Rep 2,818 Posts Drives: '23 M440i GC Join Date: Mar 2013 Location: California iTrader: (38)	You should just remove it just in case though..don't want to cause conflicts between both programmers.
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12-10-2014, 01:49 AM	#6
DrRobert Normal Person 150 Rep 862 Posts Drives: 2011 E90 335i Join Date: May 2014 Location: paradise iTrader: (0) Garage List 2011 E90 335i [0.00]	What do you gain by running both JB4 and custom Cobb tune?
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12-10-2014, 12:13 PM	#8
DrRobert Normal Person 150 Rep 862 Posts Drives: 2011 E90 335i Join Date: May 2014 Location: paradise iTrader: (0) Garage List 2011 E90 335i [0.00]	OK, thanks. Sounds like there would be no benefit to running both tunes with a 6AT on pump gas then.
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