[335i Pal]

I am a current JB3 user and my car just got its turbos replaced by the new service bulletin and since I took out my tune I figured I would upgrade it. Just had a few questions though with the upgrade:


-When it says I can change maps on the fly, does this mean while stopped, driving or if the car is started?
-What is CANbus based integrated boost control system?
-My current setup is BMS Dual Cones and thinking about downpipes, so map 1 or 2? Maybe 5?
-I found some info on the autotuning menu (map 5) what exactly is it?

Sorry if these are posted some where but I couldn't find them.

Thanks!

[Bobbybmw22]

Originally Posted by 335i Pal

I am a current JB3 user and my car just got its turbos replaced by the new service bulletin and since I took out my tune I figured I would upgrade it. Just had a few questions though with the upgrade:


-When it says I can change maps on the fly, does this mean while stopped, driving or if the car is started?
-What is CANbus based integrated boost control system?
-My current setup is BMS Dual Cones and thinking about downpipes, so map 1 or 2? Maybe 5?
-I found some info on the autotuning menu (map 5) what exactly is it?

Sorry if these are posted some where but I couldn't find them.
The turbos were warrantied from BMW? Can i do that?
Thanks!

The turbos were warrantied from BMW? Can i do that?

[StevenY.]

You can change maps while the car is on and you're driving and if you get cat less downpipes with your dci and you can run map 2. Map 5 is auto tuning and the system will tune to settings that work for your specific conditions ie: mods, fuel. Also forgot to say, map 0 is stock tune, map 1 is meant for most people with stock or with a dci and also I think you can run map 2 with dci and octane 93 only but you need to run a log and send them to Terry to see if it is running okay.

[335i Pal]

Originally Posted by Bobbybmw22

The turbos were warrantied from BMW? Can i do that?

Yup, read here:

http://www.e90post.com/forums/showthread.php?t=729833

[335i Pal]

Originally Posted by StevenY.

You can change maps while the car is on and you're driving and if you get cat less downpipes with your dci and you can run map 2. Map 5 is auto tuning and the system will tune to settings that work for your specific conditions ie: mods, fuel. Also forgot to say, map 0 is stock tune, map 1 is meant for most people with stock or with a dci and also I think you can run map 2 with dci and octane 93 only but you need to run a log and send them to Terry to see if it is running okay.

Awesome, thanks for the response I am excited to get my JB4 upgrade back, just hope when they upgrade it, it is the current G5. And sounds like I should have bought the cable with it as well, to run a log.

[StevenY.]

Originally Posted by 335i Pal

Awesome, thanks for the response I am excited to get my JB4 upgrade back, just hope when they upgrade it, it is the current G5. And sounds like I should have bought the cable with it as well, to run a log.

Yeah, getting the USB is probably a good idea. Sorry I couldn't answer your other questions, I don't want to mislead you so I only answered what I could.

[335i Pal]

One other question too, I see how to get into the menu (up channel and down volume) and how to navigate. But how do you lock it in? I read that excel sheet over from the N54 site, but nothing was clear on how to lock in the feature I wanted.

[StevenY.]

Originally Posted by 335i Pal

One other question too, I see how to get into the menu (up channel and down volume) and how to navigate. But how do you lock it in? I read that excel sheet over from the N54 site, but nothing was clear on how to lock in the feature I wanted.

Maybe this will help.
http://www.youtube.com/watch?v=HDjD4OcDIGU&feature=youtube_gdata_player

[WilliamS]

Once your in the menus, the volume up and down will go through the menus 1-7 using the speedo, the track up and down will be your selection on the tach. So for example if your looking at the chart. So when your in the menus, volume up to 40 miles per hour, then track up to 6000 rpms will disable TPMS. Then you use the volume down button until the gauges kick back to normal. Easy as pie. You can do it will cruising although probably not the safest time.

[e92oholic]

I have a jb4 box only that im selling. i believe you can just swap it out and use your old harness.

And you would want to use map 5. With all the new updates map 5 is awesome.

[335i Pal]

Originally Posted by StevenY.

Maybe this will help.

Thanks again, now I can't wait to get it!

[335i Pal]

Originally Posted by e60oholic

I have a jb4 box only that im selling. i believe you can just swap it out and use your old harness.

And you would want to use map 5. With all the new updates map 5 is awesome.

I looked on the burger tuning site and you have to do some wiring harness modification, thats why I sent mine in for them to do it. Well worth the extra $25.

And thanks will definitely have to look into Map 5.

[Exzackt]

You should also look into using the new jb4 G5 board using ISO boost. AMAZING

[335i Pal]

Originally Posted by Exzackt

You should also look into using the new jb4 G5 board using ISO boost. AMAZING

Well I asked Terry if I was in fact getting the G5 board and now you have peeked my interest, what is ISO boost?

[StevenY.]

Originally Posted by 335i Pal

Well I asked Terry if I was in fact getting the G5 board and now you have peeked my interest, what is ISO boost?

Yeah, I'd like to know too. From the brief impressions I've read it supposedly makes the boost more smooth?

[Bagelfast]

Originally Posted by StevenY.

Yeah, I'd like to know too. From the brief impressions I've read it supposedly makes the boost more smooth?

Its isolated boost control... compared to integrated of the Normal JB4 G4

Per Mike
"it removes all boost control from the DME allowing the JB4 to run the show completely. Which allows it to provide stronger, smoother, and more consistent boost control"

Also has no boost ceiling.. As compared to the G4 board, 15ohm is capped if i remember at 17. And larger fueling resistors if i remember correctly.

G5 iso also has a completely new revised lagfix, which gets rid of wasgate rattle better, reduces lag.
Basically works as a function of 0 ( wastegate fully open) 100(wasgate fully closed. And then the settings in betwee, Default is 80 on the G5 iso.

[335i Pal]

Originally Posted by 1LUMI

Also has no boost ceiling.. As compared to the G4 board, 15ohm is capped if i remember at 17. And larger fueling resistors if i remember correctly.

G5 iso also has a completely new revised lagfix, which gets rid of wasgate rattle better, reduces lag.
Basically works as a function of 0 ( wastegate fully open) 100(wasgate fully closed. And then the settings in betwee, Default is 80 on the G5 iso.

So I think I understand now, but does the G5 board have all the above even if its not isolated?

[AndyR83]

Is the product with the G5 board still named JB4? I got mine maybe two months ago, were they using it then?

[E90_boostjunky]

Originally Posted by AndyR83

Is the product with the G5 board still named JB4? I got mine maybe two months ago, were they using it then?

also wondering..? if i buy a new Jb4 say today will it already have G5 board programmed in it?

[StevenY.]

Originally Posted by E90_boostjunky

also wondering..? if i buy a new Jb4 say today will it already have G5 board programmed in it?

I believe the g5 board is an extra $120, please correct me if I am mistaken.

[Exzackt]

Originally Posted by E90_boostjunky

also wondering..? if i buy a new Jb4 say today will it already have G5 board programmed in it?

Originally Posted by AndyR83

Is the product with the G5 board still named JB4? I got mine maybe two months ago, were they using it then?

Originally Posted by 335i Pal

So I think I understand now, but does the G5 board have all the above even if its not isolated?

Originally Posted by StevenY.

Yeah, I'd like to know too. From the brief impressions I've read it supposedly makes the boost more smooth?

Ask Mike@n54tuning.com for more info how to order. I love the isolated boost and urge people to get it. Well worth the price.

"ISO is a new JB4 G5 board feature that BMS has been developing for the last couple of months. Lots of info on their forum along with the test software. In a nut shell, it removes all boost control from the DME allowing the JB4 to run the show completely. Which allows it to provide stronger, smoother, and more consistent boost control. It was originally designed for large single and twin turbo cars but it's been working so well with stock turbos I think it won't be long before ISO completely replaces the existing integrated control system in new G5 firmwares."

Also important to note that the isolated firmware is free.

[Bagelfast]

Originally Posted by 335i Pal

So I think I understand now, but does the G5 board have all the above even if its not isolated?

The G5 will have everything of the above, except the new lagfix and of course the isolated boost which is the big part.
Also the G5 iso or not, you can get the Speed limiter defeat for 10 bucks. 2 wires that connect to the harness.

Originally Posted by AndyR83

Is the product with the G5 board still named JB4? I got mine maybe two months ago, were they using it then?

Yea, still the Jb4, they are selling all JB4's currently with the G5 when bought new, i think 2 months ago, they were shipping G4 with 15ohm new..
Contact Terry or go on the other site to find out exactly.

Originally Posted by E90_boostjunky

also wondering..? if i buy a new Jb4 say today will it already have G5 board programmed in it?

If you buy new today, you will get the G5 board, not the G4 board anymore.

Originally Posted by StevenY.

I believe the g5 board is an extra $120, please correct me if I am mistaken.

150$ to get the G5 board alone and 10 bucks for speed limiter defeat wires add on.

If bought new the JB4 now comes with the G5.