[ashburyn54]

Originally Posted by Yellowflash21

FSociety

Isn't Map4 stock map, or it's map1 with logging?

Just managed to hook everything up, so should start doing some test tomorrow.

Map4 for stock map logging I'm pretty sure

[Jadar]

Originally Posted by BD_F87

Map 2 would be your best bet.. Terry has said map 1 & 2 work very nicely on the M2

Actially he said the very opposite that the M2 N55 is tuned to the limit for the stock turbo and there are not much gains to be had until a turbo swap. He just made a post about it.

In fact he said the B58 is more tunable and makes better power with a jb4 map 1 and meth.

[M2DCT]

Are you not disappointed that your M2 will not make the horsepower with the stock turbo ?

[ashburyn54]

Originally Posted by M2DCT

Are you not disappointed that your M2 will not make the horsepower with the stock turbo ?

After being at the track, no. I ran stock boost, it didn't need anymore straight line speed. If I only cared about beating the random lambo or cobra, yes. Although that can be fixed with 3-4K

[Mike@N54Tuning.com]

Originally Posted by FSociety

Firmware doesn't matter Terry told me but my car is liking ewg7 and 9b much more than ewg8 even in map4, avg_ign is nicer for ex.

He said for me to evaluate map2, with the current firmware and FUA = 80 setting, PID 0 and FF 0.

The problem comes up at higher RPM when doing sustained runs, but what i'm clearly seeing is the Throttle Closures and of course the factory Overboost

Those sound like X4 M40i tuning suggestions? People with the M2 which runs different DME software should not be following X4 M40i tuning advice you are giving here. The M2 is just like a M235 EWG system and uses the standard settings and firmware. The only difference between the M235 and the M2 is the DME runs around 4psi more on the M2 so you run the JB4 on map1 which basically maxes out the turbo on pump gas.

It's also well known the M235/M2 high pressure pump craps out around 400whp so plan on meth, port injection, etc, for higher power levels.

Mike

[M2DCT]

Originally Posted by ashburyn54

After being at the track, no. I ran stock boost, it didn't need anymore straight line speed. If I only cared about beating the random lambo or cobra, yes. Although that can be fixed with 3-4K

Actually the statement you answered was a rhetorical question to the preceding statement about how M2 is maxed out.

It just seems that all the comments about how M2 is not really any better than M235i are from those who obviously don t really appreciate or value the engineering behind the M2 !!!

[ashburyn54]

Originally Posted by M2DCT

Actually the statement you answered was a rhetorical question to the preceding statement about how M2 is maxed out.

It just seems that all the comments about how M2 is not really any better than M235i are from those who obviously don t really appreciate or value the engineering behind the M2 !!!

Yeah I get it, Those same commenters won't ever understand. The best parts of the m2 just don't matter to them I guess. I like them both!

[savagee_m2]

Love the m2, its now insane. I will be getting pure turbos for it soon!

[Yellowflash21]

savagee_m2 mind sharing your jb4 settings and logs?

[FSociety]

Originally Posted by Yellowflash21

savagee_m2 mind sharing your jb4 settings and logs?

Only if he has Dyno'ed it first or ran the 1/4

[Jadar]

Originally Posted by DKM3Power

Unless you know what your doing Map 5 could easily kill your engine...Letting users define AFR and Timing advance AND BOOST. Most even car people have no clue how these parameters affect each other and cause detonation. Most dont even REALLY know what detonation is...Scary...

Im an old JDM tuner that used to tune from scratch stand-alone systems and Im afraid to touch Map 5....

FSociety is smart too, hot weather like this, whats the point...stockkin it is the way to go...Once it cools down or I get a water/C02 intercooler chiller and bigger FMIC Im being conservative until at least the 60s

Not even close. JB4 uses oem a/f and can't adjust it. What are you talking about user defined?The a/f adjustments and tuning advancements in the F series cars is still in its infancy and flashing is the only way to alter a/f. JB4 has a lot more flexibility with fueling and boost control hence it's stacked on top of flashes but even that's not ironed out.

Map 5 will do no such thing in trashing a motor. It's setup is to adapt and adjust based on fuel, weather environment.

Sorry but this statement about map 5 is inaccurate.

[DKX4///M]

Originally Posted by Dejan_

Not even close. JB4 uses oem a/f and can't adjust it. What are you talking about user defined?The a/f adjustments and tuning advancements in the F series cars is still in its infancy and flashing is the only way to alter a/f. JB4 has a lot more flexibility with fueling and boost control hence it's stacked on top of flashes but even that's not ironed out.

Map 5 will do no such thing in trashing a motor. It's setup is to adapt and adjust based on fuel, weather environment.

Sorry but this statement about map 5 is inaccurate.

Making the most power out of a f/i engine and causing a significant knock event are a fine line...

I understand what you are saying about limited user definability, but a clueless person could hypothetically make a deadly cocktail of andustments....Running a little too lean, with boost slightly to high, maybe a bef that slightly advanced his ignition timing, maybe all this on top of failing to mix a proper ethanol blend and using too liitle, or his plugs are gapped too wide, or fowled, and i could go on and on...

And if your argument is that you dont get enough adjustability to cause harm, than quite frankly you dont have enough adjustability properly tune the engine to its potential...

excuse me if i sound condicending here, im not trying to be but honest question, y would map 6 and for user definable and boost AFR is terms of absolute value ex 14.7:1 or 20psi as opposed to fuel trim bias, or % increase over oem?

honest question

[Jadar]

Originally Posted by DKM3Power

Making the most power out of a f/i engine and causing a significant knock event are a fine line...

I understand what you are saying about limited user definability, but a clueless person could hypothetically make a deadly cocktail of andustments....Running a little too lean, with boost slightly to high, maybe a bef that slightly advanced his ignition timing, maybe all this on top of failing to mix a proper ethanol blend and using too liitle, or his plugs are gapped too wide, or fowled, and i could go on and on...

And if your argument is that you dont get enough adjustability to cause harm, than quite frankly you dont have enough adjustability properly tune the engine to its potential...

excuse me if i sound condicending here, im not trying to be but honest question, y would map 6 and for user definable and boost AFR is terms of absolute value ex 14.7:1 or 20psi as opposed to fuel trim bias, or % increase over oem?

honest question

Your statement was about map 5 and there's nothing adjust it's an adaptive map. I'm just providing insight that map 5 is probably the safest map you can potentially run safely. (Still can bring over boost conditions). You said map 5, did you mean map 6?

Nothing is without risk. No tuning software or piggy back solution is without risks. Not sure how this carries over to map 6 but it's a custom user adjustment setup and I wouldn't be so much worried about a/f with a JB4 as much as I'd be worried about over boost conditions and folks not understanding or realizing what they're looking at and continuing to push the car. One can most certainly bring dangerous conditions my maxing out trims.

Not understanding why anyone would be trying to use map 6 on a totally stock turbo? I don't think I'm following your original statement with map 5 and then jumping into map 6 and user settings. What is the scenario? I'm not on a stock turbo and a custom BEF. Every car is different and especially with map 6 adjustments.

[DKX4///M]

Originally Posted by Anthony235

If it was possible, and I owned a M2, my choice would be to disable the M2 overboost feature completely.

100% and go back to a pnuematic wastegate.

Coding vis e-sys it seems we have theability ti modify DME settings, Or maybe we could utilize the full DME from the x240 truck agressively flash it or load snd ignition fuel maps from the m2...Aka m2 dme w no overboost?

[Jadar]

Originally Posted by DKM3Power

100% and go back to a pnuematic wastegate.

Coding vis e-sys it seems we have theability ti modify DME settings, Or maybe we could utilize the full DME from the x240 truck agressively flash it or load snd ignition fuel maps from the m2...Aka m2 dme w no overboost?

Why the heck would you wanna go back to a PWG? PWG suffer from inconsistent boost and constantly fiddling with fine tuning it. The only benefit PWG cars really have is the ability to be tuned better with E85 mix as they tolerated it, and less fueling restrictions.

I'd take the EWG, flash the tables, set it and forget it. EWG pull so nice and linear with boost and super consistent. So many more benefits. EWG board from BMS, less wires.

[Supremekev]

Originally Posted by mike@x-ph.com

Map 5 would be a safe bet , JB4 will decide your boost based on various conditions and how the car is reacting

I ran map 5 on my F32 for a good portion of 25k miles and never had an issue. Maybe it was the JDM in you that was afraid of it lol

[FSociety]

Another member with M2, FBO, Added Meth & EWG wires and its simply a waste

http://www.n54tech.com/forums/showthread.php?t=42609

PS.. I confirmed with PURE who has looked at the M2 turbo unlike 99% out there.
And they said it its slightly different than normal n55 and part numbers dont interchange for a reason also different diverter!

[FSociety]

Originally Posted by canerveli

Ok so what's occurring now? Are we still sharing logs on here and how? screen grab of the iphone screen graph?
I've installed my JB4 bluetooth yesterday along with eventuri intake, DP and Wagner comp IC.
I want to understand whats possible and safe way to adjust the JB4 to work better with my m2
I am also having issues with shaky idle and boost during high speed pulls. peaks drops off peaks drops off.

You should do a Map4 log first and then a map1 log.
Make sure to upload them on a separate thread on http://www.n54tech.com/forums/forumdisplay.php?f=35

3rd gear full WOT, or 30-100mph

[FSociety]

I've decided after months of troubleshooting, logging, dyno and drag to put JB4 on map0 until I get the time to remove it.

I've joined proTUNING Freaks Bootmod3 for the Proper Development and Tuning of our complex cars that a piggyback system simply can't satisfy correctly.
Among other things, get your preferred local tuner involved this is the beginning of the - World's First End User BMW F series Custom Tuning Platform / Android / iOS www.protuningfreaks.com/collections/bootmod3

[Reid]

Originally Posted by canerveli

Noted but I have the JB4 installed without EWG plugged in. Currently have my MAF connected too.

Please can someone help me understand that with catless DP, comp IC, eventuri intake and 99+ Ron gas. Which map I can be running safely in 5°C temps.

My logs arent uploading here for some reason but I have graphs in map4, map1 and map2 for single pull. 3rd 2000-6800 rpm.

Thanks in advance

In a M2 with a catless downpipe, intercooler, intake (with MAF disconnected), the car is on the verge of running out of fuel on map 1. I wouldn't attempt to run on map 2 without port injection or some other supplemental fueling.

Just set boost safety to 20 psi, leave all of the other user adjustments alone and enjoy map 1.

[FSociety]

Will be posting some videos of my rematch against a FBO ECU Flash M235 & 335 GT w/ DP which both are friends whom I compare my tuning options with. I have tested JB4 with them and now will be testing my much much faster through the whole range Flash Tune which we are still progressing with.

This is on 93 only, revision2 and 3 and we're up to 5 now (each revision gets better and we keep getting faster) due keep in mind this is a 8 speed Auto 4465lbs X4 M40i ;-) imagine what it would be like on your M2.

Huge shoutouts to my team proTUNING Freaks EnzoRacing

[proTUNING Freaks]