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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 04-21-2019, 11:40 AM

Quote:
Originally Posted by ThorVanEden
ok..

now i have the 6cyl. timing (5)

last run att.

i tryed map 5 , 6 ,7 ... its the same ... not more than 11PSI
What turbos?


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(#152)
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ThorVanEden ThorVanEden is offline
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Default 04-22-2019, 02:07 PM

i have bigger upgrade Turbos
New Chargepipe
*********
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(#153)
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le_roi_leo le_roi_leo is offline
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Default 07-01-2019, 04:44 AM

have a silly question ?
how you know that a log is good ?

he is necessary that the curve PWM and FF coincides?
and that the curve PWM has a minimal oscillation ?
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(#154)
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Payam @ BMS's Avatar
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Default 07-01-2019, 07:31 AM

Quote:
Originally Posted by le_roi_leo
have a silly question ?
how you know that a log is good ?

he is necessary that the curve PWM and FF coincides?
and that the curve PWM has a minimal oscillation ?
Post a log in the support section and we'll take a look and tell you what to look out for.


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(#155)
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le_roi_leo le_roi_leo is offline
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Default 07-02-2019, 04:24 AM

finally, when i read, he show us just than he change the PID for adjust the curve.

but it not know if a PID hight or low is good for your engine ?

if i understand, FF Curve = Internal Mapping * duty bias/50 * FF/100
and terry said #20 than for DUTYBIAS 0 same 50.

so according to the formula:
if (for exemple) all the numbers DB = 65 and the FF =50
it's same than all numbers DB=0 (0=50) and FF=65 (50+15)

but when FUD=0, the setting FF is automatic,
ok you show us the effuences DB PID etc...
but for finally we said us to let FF Jb4 on the automatic setting ?
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(#156)
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Meka11113 Meka11113 is offline
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Default 03-10-2020, 07:50 AM

Quote:
Originally Posted by SPANKY
I have the latest firmware and interface.i had my duty bias all set to 0. Then I tried all set to 50,did a log and noticed right away my car would do a bucking throughout 2nd ,3rd and fourth.i pulled over and set back to 0 on duty bias,did a log and car is fine.thought setting at 0 or 50 is same?ill post up the both logs later when I get home.
Dude the same thing is happening to me after I changed my dusty from 0 to 50 in my 2010 335i. What gives Terry?
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(#157)
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Payam @ BMS's Avatar
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Default 03-10-2020, 02:31 PM

Quote:
Originally Posted by Meka11113
Dude the same thing is happening to me after I changed my dusty from 0 to 50 in my 2010 335i. What gives Terry?
Post the log.


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(#158)
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Curvo Curvo is offline
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Default 11-23-2020, 07:02 PM

Quote:
Originally Posted by Terry @ BMS
FUD = 99 just locks the FF learning so you're not chasing down multiple variables while tuning. After you're done shaping the FF curve you'd set FUD back to 0 so the JB4 can scale the entire curve up or down based on conditions.
Dear Terry iam a beginner in the Jb4 device, actually ride 135i N54 with a few modifications , fuel pump walbro , k&n, jb4 , injectors index 12, stock turbos (still), could you send me some material to understand better how to tune ? do you have some basic values that we can work on it ?
I am reading all your tips but i have a little delay to understand yet kkkk
I buy MHD too but did not flash yet
i was trying DB and FF tips as recomended and FF curve still not looking so good as i wish
Regards
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dmckmc dmckmc is offline
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Default 11-26-2020, 07:08 AM

Quote:
Dear Terry iam a beginner in the Jb4 device, actually ride 135i N54 with a few modifications , fuel pump walbro , k&n, jb4 , injectors index 12, stock turbos (still), could you send me some material to understand better how to tune ? do you have some basic values that we can work on it ?
I am reading all your tips but i have a little delay to understand yet kkkk
I buy MHD too but did not flash yet
i was trying DB and FF tips as recomended and FF curve still not looking so good as i wish
Regards
If you are a beginner with tuning then Duty Bias and FF tuning is probably not the place to start. The very first line of this entire thread and sticky says in red letters
Quote:
Do not change the Duty Bias values from the default of 0 unless instructed to do so, or if logs indicate that they need adjustment
. I would start with basic tuning and understanding logs. Here are a few good threads/links to start:

https://bmwtuning.co/bmw-n54-data-logging-with-jb4/

https://www.n54tech.com/forums/showthread.php?t=21269


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(#160)
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KnifeEdge87 KnifeEdge87 is offline
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Default 01-16-2021, 08:31 AM

How applicable are ff, wgdc(duty bias) settings to EWG equipped engines (B series specifically) ?
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(#161)
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Curvo Curvo is offline
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Default 05-09-2021, 06:00 PM

Quote:
Originally Posted by dmckmc
If you are a beginner with tuning then Duty Bias and FF tuning is probably not the place to start. The very first line of this entire thread and sticky says in red letters . I would start with basic tuning and understanding logs. Here are a few good threads/links to start:

https://bmwtuning.co/bmw-n54-data-logging-with-jb4/

https://www.n54tech.com/forums/showthread.php?t=21269
Terry ,
i glad with this tutorials, it is clear some questions, but i guess that some issues to solve yet. I only observe ign time for cyl 1 other cyl appear 0 and trying to understand why.
What is the average value to determine if LPFP are running low? The pull generate 78, it is too high?
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(#162)
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joebarteam74 joebarteam74 is offline
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Default MAP 6 TTE580 engine B58 - 09-22-2021, 10:36 AM

hi terry

I have followed your explanation .. and I thank you ..

I therefore wanted to improve the turbo pressure and give it more stability compared to a map of a preparer with my turbo hybrid TTE580.

I would like you to tell me what you think of LOG and if optimizations are possible?
as a reminder it's a first for me but I learn quickly

and a log on MHD before running the map 6 of the JB4.

Last edited by joebarteam74; 09-22-2021 at 10:46 AM..
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(#163)
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 09-23-2021, 07:27 AM

Quote:
Originally Posted by joebarteam74
hi terry

I have followed your explanation .. and I thank you ..

I therefore wanted to improve the turbo pressure and give it more stability compared to a map of a preparer with my turbo hybrid TTE580.

I would like you to tell me what you think of LOG and if optimizations are possible?
as a reminder it's a first for me but I learn quickly

and a log on MHD before running the map 6 of the JB4.
1. Why is this in the N54 section?
2. We only review JB4 logs here
3. Your log looks fine but the turbo is completely maxed out so your boost targets are unrealistic.



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(#164)
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komeyria55 komeyria55 is offline
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Default 10-05-2021, 10:55 AM

Hi, Please help.

myfiosgateway




Regards, b2b spice money

Last edited by komeyria55; 10-13-2021 at 05:40 AM..
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(#165)
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Steve @ BMS/Fuel-It!'s Avatar
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Default 10-06-2021, 10:22 AM

Quote:
Originally Posted by komeyria55
Hi, Please help.



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