JB4 (N54/N55) Support Thread, South Africa

[Mia225]

2d2e is charge pipe related.

For the 30ff, i would check:

- Boost/vacuum cannisters
Vacuum lines , all of them
- Charge Pipe
- Silicon that clamps on to the Charge Pipe.
- Dvs must be seated correctly and not damaged or leaking.

Iceman - seeing that you bought these parts from me, based on what Firi said, i can comment on the above. I got the exact same codes after i installed the parts and the causes were:

1. The silicone on the chargepipe was not tightened properly therefor causing the 2d2e issue.
2. 30ff was related to the DV's. the silicone that connects to the DV nipple i initially just put on. After that i tried a few things and used a cable tie to tie them down properly on the dv. i cable tied all the vacuum lines connecting from the dv's. hope this helps

 

[Yuben]

Ok let me add myself to the JB4 crowd...:rollsmile:

Everything else stock. Running between map 1 and map 5.

Definitely feels like a different car:cartel:

 

[Iceman12596]

Ok let me add myself to the JB4 crowd...:rollsmile:

Everything else stock. Running between map 1 and map 5.

Definitely feels like a different car:cartel:

Welcome bud

 

[FiRi@Rennzport]

Nobody ?

Any news on what happened after this bud. Did you come right, what was the PoA and did it solve the problem.

 

[Iceman12596]

Nobody ?

Any news on what happened after this bud. Did you come right, what was the PoA and did it solve the problem.

all gone, did some homework on the internet and found that i had to lower the default Wastegate position 200rpm from default setting.

So all good, for now N54 Life

 

[FiRi@Rennzport]

So charge pipe and Dvs all working. Excellent news.

 

[Iceman12596]

So charge pipe and Dvs all working. Excellent news.

Yes, but had to switch back to Stock CP and DV's for now, before changing the wastegate position i had the same sh1t with stock CP and DV's, Serviced the DV's already and just need to rethread holes on CP then will bang them back on

 

[Yuben]

Can u measure 0-100, 400m time using the JB4 MOBILE app?

 

[ty1204]

Hi Guys, have a few questions regarding the JB4, hoping one of you guys can help me out...

I have an N54 335i DCT, I've already done decatted downpipes, exhaust, DCI, chargepipe with dumpvalve and software. I've recently been reading up on the JB4 and the safety features as well as the ability to switch maps on the fly are the main reasons I'm now looking at going this route, also the fact that I don't need to remap every time I add/change a new mod is a big plus. These are the questions I have....

- Can the JB be installed with the current file on the car? Is this the best way to do this or should I rather revert back to the stock map?

- I read somewhere that map6 is customisable, If I revert back to the stock map would I then be able to load my current file as map6?

- Can the back-end flash only be done with the BMS maps?

Thanks in advance for the assistance....:ty:

 

[HitokiriZed]

Hi Guys, have a few questions regarding the JB4, hoping one of you guys can help me out...

I have an N54 335i DCT, I've already done decatted downpipes, exhaust, DCI, chargepipe with dumpvalve and software. I've recently been reading up on the JB4 and the safety features as well as the ability to switch maps on the fly are the main reasons I'm now looking at going this route, also the fact that I don't need to remap every time I add/change a new mod is a big plus. These are the questions I have....

- Can the JB be installed with the current file on the car? Is this the best way to do this or should I rather revert back to the stock map?

- I read somewhere that map6 is customisable, If I revert back to the stock map would I then be able to load my current file as map6?

- Can the back-end flash only be done with the BMS maps?

Thanks in advance for the assistance....:ty:

Howzit bud

The JB4 is a piggy back system - this functions as a means to alter expected values communicated to the car's ECU to boost performance. Maps on the JB4 are predefined altered maps (with the exception of map5 - which is auto learn and map6 - user defined tune)

JB is dynamic in the sense that altering a boost value has implications on fueling and timing (as an example) and for that reason most guys ask a tuner for help dialling in settings.

It can be used with the file already on the car - and will seek to alter the imputs as requested by the existing file on the car. You will not be able to load your current map as map6 unless the parameters set are very similarly defined and linked to the JB4 interface.

I think that any map (e.g. your existing tune) may function as a back end flash - plenty guys running VWs and BMWs alike are running JBs as a stacked option over existing flash tunes.

Hope this helps - I'm a novice here, more experienced guys will hopefully chime in.

 

[ty1204]

Hi Guys, have a few questions regarding the JB4, hoping one of you guys can help me out...

I have an N54 335i DCT, I've already done decatted downpipes, exhaust, DCI, chargepipe with dumpvalve and software. I've recently been reading up on the JB4 and the safety features as well as the ability to switch maps on the fly are the main reasons I'm now looking at going this route, also the fact that I don't need to remap every time I add/change a new mod is a big plus. These are the questions I have....

- Can the JB be installed with the current file on the car? Is this the best way to do this or should I rather revert back to the stock map?

- I read somewhere that map6 is customisable, If I revert back to the stock map would I then be able to load my current file as map6?

- Can the back-end flash only be done with the BMS maps?

Thanks in advance for the assistance....:ty:

Howzit bud

The JB4 is a piggy back system - this functions as a means to alter expected values communicated to the car's ECU to boost performance. Maps on the JB4 are predefined altered maps (with the exception of map5 - which is auto learn and map6 - user defined tune)

JB is dynamic in the sense that altering a boost value has implications on fueling and timing (as an example) and for that reason most guys ask a tuner for help dialling in settings.

It can be used with the file already on the car - and will seek to alter the imputs as requested by the existing file on the car. You will not be able to load your current map as map6 unless the parameters set are very similarly defined and linked to the JB4 interface.

I think that any map (e.g. your existing tune) may function as a back end flash - plenty guys running VWs and BMWs alike are running JBs as a stacked option over existing flash tunes.

Hope this helps - I'm a novice here, more experienced guys will hopefully chime in.

Hi HitokiriZed

Thanks for your response. Beside the safety aspect, what would be the benefit of stacking the JB with my existing tune in terms of power and features?

 

[HitokiriZed]

Hi Guys, have a few questions regarding the JB4, hoping one of you guys can help me out...

I have an N54 335i DCT, I've already done decatted downpipes, exhaust, DCI, chargepipe with dumpvalve and software. I've recently been reading up on the JB4 and the safety features as well as the ability to switch maps on the fly are the main reasons I'm now looking at going this route, also the fact that I don't need to remap every time I add/change a new mod is a big plus. These are the questions I have....

- Can the JB be installed with the current file on the car? Is this the best way to do this or should I rather revert back to the stock map?

- I read somewhere that map6 is customisable, If I revert back to the stock map would I then be able to load my current file as map6?

- Can the back-end flash only be done with the BMS maps?

Thanks in advance for the assistance....:ty:

Howzit bud

The JB4 is a piggy back system - this functions as a means to alter expected values communicated to the car's ECU to boost performance. Maps on the JB4 are predefined altered maps (with the exception of map5 - which is auto learn and map6 - user defined tune)

JB is dynamic in the sense that altering a boost value has implications on fueling and timing (as an example) and for that reason most guys ask a tuner for help dialling in settings.

It can be used with the file already on the car - and will seek to alter the imputs as requested by the existing file on the car. You will not be able to load your current map as map6 unless the parameters set are very similarly defined and linked to the JB4 interface.

I think that any map (e.g. your existing tune) may function as a back end flash - plenty guys running VWs and BMWs alike are running JBs as a stacked option over existing flash tunes.

Hope this helps - I'm a novice here, more experienced guys will hopefully chime in.

Hi HitokiriZed

Thanks for your response. Beside the safety aspect, what would be the benefit of stacking the JB with my existing tune in terms of power and features?

You can dial in more boost on top of the existing tune, set boost limits for the first three gears, and, if you get the FSB you’ll be able to control a Methanol / NOS kit and set it up to spray progressively. That’s the immediate benefits that come to mind.


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[Dees_13]

Hey guys

I recently installed Jb4 on my car. Done about 850km or so since fitting. Been running on map 5 for the auto tuning feature. Decided to put the car on the dyno today. Was a bit disappointed to say the least. Car made 7kw and 32nm more than my previous run before jb4. Graph looks like a bit of timing pull as there are a bit of dips in the graph.

Car was run on pump fuel (95 octane). Should I rather run map 2 instead?

Mods on my car are mppk, mpe, downpipe and jb4. Haven't logged my car as I don't have the data cable so have no access to that unfortunately.

---

Previous run on this particular dyno I made 228kw 420nm prior to Jb4. Now with Jb4 map 5 I made 235kw 452nm

 

[///Avi]

Map 5 doesn't work too well on a dyno because it auto tunes to the previous few minutes/secs of w.o.t. Which is mostly the car idling and building up speed on the dyno while IATs increase. Pick map 1 or 2 and put the car on the dyno.

 

[Dees_13]

Map 5 doesn't work too well on a dyno because it auto tunes to the previous few minutes/secs of w.o.t. Which is mostly the car idling and building up speed on the dyno while IATs increase. Pick map 1 or 2 and put the car on the dyno.

Ok cool thanks bud. So load octane and run map 2 for the best outcome on a dyno? Unless I decide to get a custom tune for map 6 then run that.

Would map 5 be the better daily map to run or map 2?

 

[Iceman12596]

Map 5 doesn't work too well on a dyno because it auto tunes to the previous few minutes/secs of w.o.t. Which is mostly the car idling and building up speed on the dyno while IATs increase. Pick map 1 or 2 and put the car on the dyno.

Ok cool thanks bud. So load octane and run map 2 for the best outcome on a dyno? Unless I decide to get a custom tune for map 6 then run that.

Would map 5 be the better daily map to run or map 2?

Map 5 is perfect for daily as the unit auto adjust for the last 3 minutes, Map 2 requires some good fuel with octane to get the best out of it. Map 6 is another ballgame on its own and should be left alone unless you know a tuner who knows how to set it up

 

[Twinz]

Wont be able to advise. Something is not running right.
You will have to datalog (using the Jb4) so one can see what is up.

 

[Dees_13]

Wont be able to advise. Something is not running right.
You will have to datalog (using the Jb4) so one can see what is up.

Am I correct in saying there's 2 options to log:

1. data cable
2. JB4 Bluetooth adapter to log into the app on the phone

Which would you recommend ?

---

Map 5 doesn't work too well on a dyno because it auto tunes to the previous few minutes/secs of w.o.t. Which is mostly the car idling and building up speed on the dyno while IATs increase. Pick map 1 or 2 and put the car on the dyno.

Ok cool thanks bud. So load octane and run map 2 for the best outcome on a dyno? Unless I decide to get a custom tune for map 6 then run that.

Would map 5 be the better daily map to run or map 2?

Map 5 is perfect for daily as the unit auto adjust for the last 3 minutes, Map 2 requires some good fuel with octane to get the best out of it. Map 6 is another ballgame on its own and should be left alone unless you know a tuner who knows how to set it up

Ok cool. Still running the stock charge pipe though. So to custom tune map 6 with a tuner is not a rush for me as I don't want the pipe breaking off lol.

 

[Danny2]

as Twins said something isn’t right and you should log the car for more details...


As for connectivity,
Yes u can use either the USB cable or the Bluetooth connector.
The cable is cheaper but has to be run iinto the car and connected to a computer with the application open to see.
Bluetooth adapter is easier to connect and doesn’t require a laptop or running cables into the car.
You use the app same as you would on the computer.


As for the chargepipe, they don’t break by on having map 6. They made of plastic and they can go on a stock setup too.



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[Dees_13]

Cool thanks guys. Going to see who can help me in Durban to log the car. Then will take it from there.

Regarding map 6 and charge pipe, what would be a safe boost level should I have map 6 tuned for as I've heard the charge pipes break / pop off under extra boost.