[HiFi]

Hey Guys
im thinking about buying a JB4 but my car is relatively new and i was thinking to just buy a stage 1 first, but then i got thinking whether i could by the JB4 and just connect the same wires as the Stage 1.

Will this essentially work the same way as a Stage 1, and then when i am comfortable to mod further, i can then add the additional connections required for the full JB4?

if so then it makes sense to buy a JB4 from now...

Thanks in advance

[Bee Pee]

Yes don't connect canbus wires or Flex fuel harness

[Mike@N54Tuning.com]

Originally Posted by HiFi

Hey Guys
im thinking about buying a JB4 but my car is relatively new and i was thinking to just buy a stage 1 first, but then i got thinking whether i could by the JB4 and just connect the same wires as the Stage 1.

Will this essentially work the same way as a Stage 1, and then when i am comfortable to mod further, i can then add the additional connections required for the full JB4?

if so then it makes sense to buy a JB4 from now...

Thanks in advance

Yes I believe on the EWG boards / systems you can just connect the stage1 sensors and run in stage1 config. Can double check.

Mike

[Livfast335]

Not on the PWG..... I did it last week and kept getting drivetrain output limited. I wonder if the EWG is different.

[azn_fcuk]

Originally Posted by HiFi

Hey Guys
im thinking about buying a JB4 but my car is relatively new and i was thinking to just buy a stage 1 first, but then i got thinking whether i could by the JB4 and just connect the same wires as the Stage 1.

Will this essentially work the same way as a Stage 1, and then when i am comfortable to mod further, i can then add the additional connections required for the full JB4?

if so then it makes sense to buy a JB4 from now...

Thanks in advance

you MUST connect the canbus wires for it to properly work...
Otherwise order the JB stage 1 where you just cross over a couple plugs and dont tap into the canbus wires..

If you go the JB4 route you MUST MUST MUST connect the canbus wires for the unit to work properly.
Also connect the FF harness to monitor what your fuel is upto.
Its a simple extra 30 second task that adds extra monitoring.

Tech questions like this should be directed to N54tech.com for responses from the manufacturer.

[Mike@N54Tuning.com]

Originally Posted by Livfast335

Not on the PWG..... I did it last week and kept getting drivetrain output limited. I wonder if the EWG is different.

Yes PWG is not able to do that. Checking on the EWG as with the M3/M4 you can do it and that board is similar to the EWG version on the F3X JB4.

Mike

[mike@x-ph.com]

You should be able to connect it as a JB stage 1.
I have seen guys do it with the M3/M4 which is a similar board

[HiFi]

Thanks everyone. Seems like JB4 is the way to go for future proofing.

So what is it that makes the JB4 smoother in power delivery than the stage 1? is it those extra canbus connections?

[mike@x-ph.com]

Originally Posted by HiFi

Thanks everyone. Seems like JB4 is the way to go for future proofing.

So what is it that makes the JB4 smoother in power delivery than the stage 1? is it those extra canbus connections?

I have not noticed smoother power delivery between stage 1 Jb and Jb4 stage 2.
the extra canbus connections gives you more features and allows the JB4 to have full control

[Buckeyes]

I believe if you have obdii canbus control setup and you just unplug the obdii connection, the jb4 will operate like a stage 1

[Mike@N54Tuning.com]

Originally Posted by mike@x-ph.com

I have not noticed smoother power delivery between stage 1 Jb and Jb4 stage 2.
the extra canbus connections gives you more features and allows the JB4 to have full control

I have to disagree with the above.

The power delivery and tuning differ between the stage1 and the full JB4 in terms of the fact that the JB4 has full CAN access to all the engine parameters, including cold start safety, etc. Its subtle but there is a difference in terms of drivability.

The JB4 n55 uses CANbus data on map 1 to give a smoother pedal to boost mapping as one example of the differences.

Absolute power is not much different.

Mike

[Mike@N54Tuning.com]

Originally Posted by Trcb777

I believe if you have obdii canbus control setup and you just unplug the obdii connection, the jb4 will operate like a stage 1

Only on the EWG boards, not the PWG system.

Mike

[HiFi]

Originally Posted by Mike@N54Tuning.com

Only on the EWG boards, not the PWG system.

Mike

yep mine is a 2015 so definately EWG

[mike@x-ph.com]

Originally Posted by Mike@N54Tuning.com

I have to disagree with the above.

The power delivery and tuning differ between the stage1 and the full JB4 in terms of the fact that the JB4 has full CAN access to all the engine parameters, including cold start safety, etc. Its subtle but there is a difference in terms of drivability.

The JB4 n55 uses CANbus data on map 1 to give a smoother pedal to boost mapping as one example of the differences.

Absolute power is not much different.

Mike

nothing wrong with that. I understand the difference between the 2, im just sharing my personal experience after driving a car with both tunes.

[Mike@N54Tuning.com]

Originally Posted by HiFi

yep mine is a 2015 so definately EWG

yes 2015 is definitely EWG

Mike

[963mw]

So conclusion is, with EWG JB4, you don't have to splice any wires? The only reason I'm asking is because the dealership here would try to void your warranty if you put a sticker on your windshield claiming it would ruin aerodynamics.... Anyways, A local tune shop here is claiming same output and operation without any splicing involved, which leaves me stuck between 2 options (Leaning more to JB4 though).

[mike@x-ph.com]

Originally Posted by nickhelou

So conclusion is, with EWG JB4, you don't have to splice any wires? The only reason I'm asking is because the dealership here would try to void your warranty if you put a sticker on your windshield claiming it would ruin aerodynamics.... Anyways, A local tune shop here is claiming same output and operation without any splicing involved, which leaves me stuck between 2 options (Leaning more to JB4 though).

Nick,
If you use the OBD cables, no wire splicing is needed.
What tune is the other shop using?

I am currently in Europe but will be in Lebanon next week

[G30 B58]

JB4, the OBD2 CAN connection and the proper OBD2 software is the absolute best thing since sliced bread.

It literally took me 40 minutes to reinstall my tune after a dealer visit.

[963mw]

Originally Posted by mike@x-ph.com

Nick,
If you use the OBD cables, no wire splicing is needed.
What tune is the other shop using?

I am currently in Europe but will be in Lebanon next week

Piggyback, his name is Gilbert. Check his instagram out; very talented guy, but would rather stick to something more mainstream. Got an M6 to run 800bhp or something very close to that. Instagram: Protuning_lb

[963mw]

Originally Posted by F32 N55

JB4, the OBD2 CAN connection and the proper OBD2 software is the absolute best thing since sliced bread.

It literally took me 40 minutes to reinstall my tune after a dealer visit.

Wait so how does the setup go? Do you connect the JB4 through OBD2 only? Sorry to ask, but I'm somewhat of a noob with JB4's.

Edit: Never mind, found some installation notes, connect OBD2 and then route wires to engine bay, but then what? These look spliced wires to me.

http://www.n54tech.com/forums/showthread.php?t=30750

[G30 B58]

Originally Posted by nickhelou

Wait so how does the setup go? Do you connect the JB4 through OBD2 only? Sorry to ask, but I'm somewhat of a noob with JB4's.

Edit: Never mind, found some installation notes, connect OBD2 and then route wires to engine bay, but then what? These look spliced wires to me.

http://www.n54tech.com/forums/showthread.php?t=30750

You make no permanent modification to the cars wiring. Everything is literally plug and play. Yes, you do use 2 wire nuts but that's just OBD2 connector pigtail wiring to JB4 pigtail wiring.

[rustyminded]

I read after connecting all wires you can change cps something to different number and it will behave like st. 1 check n54tech