[ashburyn54]

Hey everyone. I thought it would be nice to setup a place where people who monitor and log their cars could share information and findings. A couple questions I would like to see answered.

What's your stock boost looking like when the car isn't pulling timing? And what is your tune running at?
Any custom map 6 guys out there?


My experience with my FBO JB4 car is a little concerning and seemingly throws the old N55 limits out the window even on map 1. So what are the new safe limits?

Map 1 FBO running with overboost puts us at a 4psi over stock target. Which means our cars on map 1 are running at or above an m235i or equivalent n55 car in map 7. My stock boost will hit 14-15ish PSI which brings us close to 19-20psi in the midrange.

Map 2 is the 6psi target. Which seems overkill but my HPFP will hold me off from utilizing it. What I did find with JB4 is if you run mafless the DME and ECU targets drop to around 12psi max right where the stock overboost starts to creep up usually. I will post a mafless map 2 run, I'm thinking this could be the reasonable kill map assuming the octane and HPFP hold up.

[FSociety]

Looking forward to your logs, you prob have seen mine in other threads for the X4 M40i.
I've worked a little with DKM3Power M2 Manual and cars are very funny when seeing jb4 logs.
In this regards I've joined proTUNING Freaks Bootmod3 with our local tuner Enzo Performance.

[SeanWRT]

What's the overboost over stock that you hit at top end on map 1?

Originally Posted by ashburyn54

Map 1 FBO running with overboost puts us at a 4psi over stock target. Which means our cars on map 1 are running at or above an m235i or equivalent n55 car in map 7. My stock boost will hit 14-15ish PSI which brings us close to 19-20psi in the midrange.

[Bimmer28312]

Very interested as well just got my jb4 and plan on using bm3 as a BEF

[Norcalmav23]

Finally a thread on this side of the fence. Love n54tech but bimmer post needed this thread for the M2's. Thanks for starting it ashburyn54. Car arrives next week and I have an aggressive mod plan that should have my car completely "finished" by 5k on the odo lol. BM3 is in BETA which should wrap up soon I'd think. They are also working on an IOS version of there app which will be nice. Right now I am strongly leaning towards a complete BM3 flash solution instead of the traditional JB4 with BEF.

[ashburyn54]

Originally Posted by SeanWRT

What's the overboost over stock that you hit at top end on map 1?

I meant the stock overboost. JB4 isn't causing any more "overboost". I was talking about disabling the OEM overboost and compensating with more boost from the JB4

[ashburyn54]

Originally Posted by Norcalmav23

Finally a thread on this side of the fence. Love n54tech but bimmer post needed this thread for the M2's. Thanks for starting it ashburyn54. Car arrives next week and I have an aggressive mod plan that should have my car completely "finished" by 5k on the odo lol. BM3 is in BETA which should wrap up soon I'd think. They are also working on an IOS version of there app which will be nice. Right now I am strongly leaning towards a complete BM3 flash solution instead of the traditional JB4 with BEF.

Yes I totally agree. I'm kind of exhausting my JB4 options at this point but want to keep it when I'm using Port injection or something similar down the road. The built in support is really nice. It's amazing how a piggyback has remained so relevant and useful even though a lot of people don't use them for their main purpose.

I'm excited to see what BM3 can do moving forward. Not having to "trick" the system would be amazing.

[FSociety]

Originally Posted by ashburyn54

Yes I totally agree. I'm kind of exhausting my JB4 options at this point but want to keep it when I'm using Port injection or something similar down the road. The built in support is really nice. It's amazing how a piggyback has remained so relevant and useful even though a lot of people don't use them for their main purpose.

I'm excited to see what BM3 can do moving forward. Not having to "trick" the system would be amazing.

Exactly, not having to trick it will be so much healthier on turbos running less boost than what the typical jb4 ask for.

So far in less than a week I activated, sent my stock file to them, all tables defined & OTS queue is moving.

[jeff@autocouture]

We also have the ability to unlock the DME for Bootmod3, we can flash tune, we can log for you, we can dance.....well at least i can...

[ashburyn54]

Originally Posted by jeff@autocouture

We also have the ability to unlock the DME for Bootmod3, we can flash tune, we can log for you, we can dance.....well at least i can...

Haha yes

[ashburyn54]

Originally Posted by FSociety

Looking forward to your logs, you prob have seen mine in other threads for the X4 M40i.
I've worked a little with DKM3Power M2 Manual and cars are very funny when seeing jb4 logs.
In this regards I've joined proTUNING Freaks Bootmod3 with our local tuner Enzo Performance.

So without posting my logs yet map 2 mafless was a success with e15ish in the tank. PID gain was set to 8 but recovers better set to 10. A little spikey but it's okay. I set my FOL loop to 75 versus 60 and the HPFP is now keeping up. Up top it's running a bit rich so I will probably pull back a little bit. So far no misfires from running rich at 17-18psi peak. The only thing that changed is my avg ign learned up to 1.9. Which I guess is fine, I just wish I could give it all the octane it wants.

I think it's time for some map 6 tweaking. I don't like a 6psi additive target so low in the rev range. It's like a kick in the teeth. I'll try a more linear curve with a small taper and will post those as well.

[Bimmer28312]

Finally got jb4 installed and did some pulls. Car didn't fell right and can feel throttle closure throughout the pull. It did get better by the 3rd pull so not quite sure how much this is from "learning/adjusting" to the map. This on 91octane with catless DP and Dinan exhaust. Sent it over to Terry for advice and adjustments.

[ashburyn54]

Originally Posted by Bimmer28312

Finally got jb4 installed and did some pulls. Car didn't fell right and can feel throttle closure throughout the pull. It did get better by the 3rd pull so not quite sure how much this is from "learning/adjusting" to the map. This on 91octane with catless DP and Dinan exhaust. Sent it over to Terry for advice and adjustments.

What map are you on and what gear? The f series loves to have throttle closures. Also if you were in sport plus it could have been MDM mode related closures.

Another way of smoothing things out is lowering your PID gain. Lowering to 8 versus 10 smoothed things out for me drastically.

[Bimmer28312]

Having trouble loading the files on here. I did all 3 pulls pulls in 3rd gear starting at 2rpm to redline all on map 1 in sports+. This morning I put in 2 gallons of e85 and it's now running much better but still feel some hiccups here and there

[FSociety]

Check your User Adjustments
Boost Safety if its at 18 (increase to 2)
PID Gain: 10
Defaulte Watergate POS: 0
FF/Waste Adaptation: 0
FOL: 60
Auto Shift Boost Redux: 10
Rest leave blank
And most importantly UPDATE to firmware EWG9.hex if you haven't already

Best way to get logs support is n54tech.com

And personally have not seen any great results with JB4 on M2.. Already know 3 guys in this hole.

[ashburyn54]

Originally Posted by Bimmer28312

Having trouble loading the files on here. I did all 3 pulls pulls in 3rd gear starting at 2rpm to redline all on map 1 in sports+. This morning I put in 2 gallons of e85 and it's now running much better but still feel some hiccups here and there.

Try with traction fully off and see if some of the closures go away.

[Bimmer28312]

Originally Posted by FSociety

Check your User Adjustments
Boost Safety if its at 18 (increase to 2)
PID Gain: 10
Defaulte Watergate POS: 0
FF/Waste Adaptation: 0
FOL: 60
Auto Shift Boost Redux: 10
Rest leave blank
And most importantly UPDATE to firmware EWG9.hex if you haven't already

Best way to get logs support is n54tech.com

And personally have not seen any great results with JB4 on M2.. Already know 3 guys in this hole.

Can you send me the new firmware for our M2 and the webface interface please nit sure why I'm having issues finding it . thanks

[FSociety]

Originally Posted by Bimmer28312

Can you send me the new firmware for our M2 please thanks

When you go to Settings > Firmware it will take you to n54tech.com zoom in 2nd choice is N55, B58, click there, zoom in again, click 4th choice (F Series N55 Jb4) sticky) , zoom in a start scrolling slowly before end of 1st post you will see EWG9.hex

Click it, it downloads in 5 seconds (small file) and go back to your car and flash it, car must be turned off but on battery(standby mode or accessory mode)

[Bimmer28312]

Got it thanks

[FSociety]

Just saw your log you have N54 E Series selected as your engine type
Btw dont modify the log, leave it as csv since thats the correct format to open it with JB4 App anyhow recommend you going to n54tech.com and uploading your logs there ASAP

[Bimmer28312]

Thanks didn't catch that

[ashburyn54]

Originally Posted by FSociety

Just saw your log you have N54 E Series selected as your engine type
Btw dont modify the log, leave it as csv since thats the correct format to open it with JB4 App anyhow recommend you going to n54tech.com and uploading your logs there ASAP

Oh shit. That doesn't even make sense lol