JB4 for M3/M4/M2C S55 - Page 77 - N54Tech.com

Grigoris · 09-25-2018, 09:55 AM

Hi,
I use bluetooth.
Welcome

M468 · 09-25-2018, 09:57 AM

I can’t connect my jb4 in my pc 😭

Grigoris · 09-26-2018, 01:32 AM

Hi Terry,
I refer to the set up with the Pure S2 Turbos with boost up to 32psi.
This can be safely achieved with stock internals (block/pistons/rods etc)?

Zimbo 2 · 12-09-2018, 11:27 AM

Hey guys, can you help me ?

I have a F80 CP DCT 2018 and install yesterday JB4...

What did i write her in ? Car is stock and only runs with Aral Ultimate 102 ROZ gasoline...

Terry @ BMS · 12-09-2018, 11:32 AM

Default settings are in the first post...

Zimbo 2 · 12-10-2018, 01:36 AM

Quote:

Originally Posted by Ando @ BMS

Here are the JB4_S55 default settings.

Attachment 80516

@ Terry
Thanks

So i copy this on my 2018 F80 CP DCT and it works fine ?
Currently all values are at zero except for boost safety.

Terry @ BMS · 12-10-2018, 09:16 AM

Correct.

Customtech · 11:50 AM

Sorry if this has already been answered but I have a JB4 in a BMW M4 Race car.
I don’t have a standard steering wheel and would like to change maps on the fly.
Is there a way of selecting maps from buttons?

Terry @ BMS · 12-29-2018, 12:11 PM

If you don't have the normal wheel controls, the JB4 mobile app is going to be your best friend.

Customtech · 12-29-2018, 12:19 PM

Quote:

Originally Posted by Terry @ BMS

If you don't have the normal wheel controls, the JB4 mobile app is going to be your best friend.

Thank you for the quick reply.
Using an app will be a bit difficult mid race while wearing gloves, is there any other way?

Terry @ BMS · 12-29-2018, 01:31 PM

Honestly it would be hard to use the in dash controls on the S55 during a live race too. What exactly do you need to do? Maybe we can figure out a way for you to do it with a custom switch or code.

Customtech · 12-29-2018, 02:15 PM

Quote:

Originally Posted by Terry @ BMS

Honestly it would be hard to use the in dash controls on the S55 during a live race too. What exactly do you need to do? Maybe we can figure out a way for you to do it with a custom switch or code.

maybe a switch to toggle between map 0 for rain and map 2 for normal race conditions?

Terry @ BMS · 12-29-2018, 03:07 PM

Yes we can work something like that out for you. Just need more information on the car and what you're looking to do. You could even rig up a dial to adjust boost from stock to map7 levels based on the dial setting if you want.

Zimbo 2 · 01-03-2019, 03:15 AM

Hi, my Wastegate adaptation always goes up to 118. Sometimes at 150+. why is that? especially when I am on the highway and drive full throttle ...

Customtech · 01-04-2019, 02:14 PM

Quote:

Originally Posted by Terry @ BMS

Yes we can work something like that out for you. Just need more information on the car and what you're looking to do. You could even rig up a dial to adjust boost from stock to map7 levels based on the dial setting if you want.

That sounds great, can you pm me your email address please?

Terry @ BMS · 01-04-2019, 02:35 PM

terry@burgertuning.com

Zimbo 2 · 01-09-2019, 09:45 AM

Hi, my M3 F80 CP jumps to Map 5 in the emergency mode when switching at full load of 4 in 5 and 5 in 6. At least if I switch at over 7000 rpm! Does the DKG (DCT) possibly have a torque limit which is exceeded here? Boost pressure is about 22 psi. In other maps he runs smoothly.

Terry @ BMS · 01-09-2019, 10:36 AM

Just post a log of the issue and we can see what you are triggering and why.

Zimbo 2 · 01-09-2019, 10:57 AM

Ok thanks Terry. I log map 5 on the next ride on german highway(Autobahn).

Zimbo 2 · 01-11-2019, 12:54 AM

Hi Terry, this is my Map 5 log. But this time no emergency code at full throttel an high rpm shift...
The low boost is because of cold weather in germany i think so...or what you think ?

Sorry for my bad english

Terry @ BMS · 01-11-2019, 10:42 AM

This log looks clean to me! Due to cold weather I do see fuel trims are high. See if raising open loop to 70 helps.

MDM · **Bluetooth no connectivity to server -** 01-21-2019, 04:50 PM

Anyone else experiencing this?
I get the following message:

ERROR
Network/Server error.

Terry @ BMS · 01-29-2019, 03:22 PM

I've had a few customers ask about setting up a linear boost map6 profile so wanted to show you guys how easy it is. Best part is it can be done with any flash including our BEF maps.

TideMD · 01-29-2019, 09:32 PM

Quote:

Originally Posted by Terry @ BMS

I've had a few customers ask about setting up a linear boost map6 profile so wanted to show you guys how easy it is. Best part is it can be done with any flash including our BEF maps.

Thanks for the info and please pardon my ignorance, but what is the goal of setting up such a map? Is there any specific benefit of the linear boost profile over the map2 or map5 curves, other than personal feel and preference?

Terry @ BMS · 01-29-2019, 10:00 PM

Entirely personal preference or feel. There is a misconception that when using a JB4 you're locked in to whatever mapping style we choose to implement in the firmware so wanted to showcase the customization ability a bit.