[Jameshawk101]

Originally Posted by Mr. T

Time to buy a new DME

Good one, I flashed back to stock and all is good.

[Mr. T]

Originally Posted by Jameshawk101

Good one, I flashed back to stock and all is good.

Really? Lucky man lol, I've heard horror stories of people forgetting to deactivate their jb4 when flashing and frying the DME. Happened to one of my friends actually.

[Jameshawk101]

Originally Posted by Mr. T

Really? Lucky man lol, I've heard horror stories of people forgetting to deactivate their jb4 when flashing and frying the DME. Happened to one of my friends actually.

Yeah same here I thought I was screwed. The car runs fine though.

[benben]

I have downloaded the mhd installer and have the correct cables to load it onto my car, will a jb4 backend flash work with my spec:

N54 335i
JB4 g4
Bms dci
******* dp's
Ams cooler
Bms methanol kit

Ben

[ShocknAwe]

Originally Posted by benben

I have downloaded the mhd installer and have the correct cables to load it onto my car, will a jb4 backend flash work with my spec:

N54 335i
JB4 g4
Bms dci
******* dp's
Ams cooler
Bms methanol kit

Ben

You need to upgrade to the G5ISO

[Fmonteiro444]

Originally Posted by Mr. T

Any MHD backend for those of us running inlets? I had seen that something was in the works but haven't seen anything about it again since.

You'll need a custom tune. Inlets allow more airflow compared to stock, so your WGDC Adder will need to be lowered significantly compared to those without inlets.

[DV135i]

I'm running a jb4 with the mhd backend flash, and installing my 3.5bar map sensor today. Do I need to check the box on the mhd flash and change settings in the jb4? Or do I just put 1 next to N20 TMAP in the jb4 settings and leave the mhd box unchecked?

[justa335i]

so i run a backend flash and what...? is it some magical one size fits all??

[musc]

Originally Posted by DV135i

I'm running a jb4 with the mhd backend flash, and installing my 3.5bar map sensor today. Do I need to check the box on the mhd flash and change settings in the jb4? Or do I just put 1 next to N20 TMAP in the jb4 settings and leave the mhd box unchecked?

Do NOT check the box on the flash. Just change the settings in JB4 only.

[DV135i]

Originally Posted by musc

Do NOT check the box on the flash. Just change the settings in JB4 only.

ok, thanks!

[MHD]

Originally Posted by Mr. T

Any MHD backend for those of us running inlets? I had seen that something was in the works but haven't seen anything about it again since.

Adjustments should be done for the boost control, so in the jb4 map/settings, not the backend flash.

Originally Posted by justa335i

so i run a backend flash and what...? is it some magical one size fits all??

There are several backends depending on things like fuel, then you can modulate the jb4 boost curve by changing maps based on your needs.

[MHD]

Originally Posted by Mr. T

Really? Lucky man lol, I've heard horror stories of people forgetting to deactivate their jb4 when flashing and frying the DME. Happened to one of my friends actually.

If you forget to change the jb4 to map 0 and fail at flashing, then unplugging the jb4 and disconnecting a while the battery minus pole will let you establish back the connection to the DME.

[Anytyme]

Any plans on supporting 2011 335i's N55? I only see up to 2010 335i and 335is for 11

[LsWhat]

So I have a modified mhd bms e85 flash I want to put in, I plan on running 21+ psi, will I need the m boost? To flash a custom flash with this. The car also has a 3.5 bar but the jb4 takes care of that correct?

[ksmyth]

I've noted that my setup will produce over 8 psi of boost prior to the engine hitting 160F. Is this a function of MHD changing targets? If so, what is the upper limit of boost at low oil temps and is there a way to lower it via the JB4? I've seen values as high as 12 psi accidentally while still below 160F. I'd like to avoid that if possible. I'm using map 7 on the JB4 and have the E85 backend flash.

[tc535i]

Originally Posted by ksmyth

I've noted that my setup will produce over 8 psi of boost prior to the engine hitting 160F. Is this a function of MHD changing targets? If so, what is the upper limit of boost at low oil temps and is there a way to lower it via the JB4? I've seen values as high as 12 psi accidentally while still below 160F. I'd like to avoid that if possible. I'm using map 7 on the JB4 and have the E85 backend flash.

I'm guessing this could be related to a menu 12 setting, I've been having a similar problem and Trebila noticed my pwm could be causing an issue. In this log it's sitting at 79 with no issues, then suddenly drops to 27 and I start boosting over target.

http://***********/u/tc535i/cold-surg...zoom=1167-1294

[ksmyth]

have you cured it by adjusting your menu 12 settings?

[tc535i]

Originally Posted by ksmyth

have you cured it by adjusting your menu 12 settings?

Not yet, still playing around with settings. There's several of us with this problem, hopefull this narrows it down

[ksmyth]

I am sure mine is at 2800. I assume you are working your way down to 2400? or going up?

[tc535i]

I've just had the suggestion to work with 12, so at this point I'm set at 2800 and trying to reproduce the odd response. Just driven the car once, nothing yet.

[Terry @ BMS]

Originally Posted by ksmyth

I've noted that my setup will produce over 8 psi of boost prior to the engine hitting 160F. Is this a function of MHD changing targets? If so, what is the upper limit of boost at low oil temps and is there a way to lower it via the JB4? I've seen values as high as 12 psi accidentally while still below 160F. I'd like to avoid that if possible. I'm using map 7 on the JB4 and have the E85 backend flash.

You'd need to evaluate the JB4 target in this situation to determine why its happening.

[ksmyth]

Thanks Terry. Which targets are we talking about? Here are my settings.

[ksmyth]

trying again...

[tc535i]

Originally Posted by ksmyth

trying again...

He means targeted boost vs actual, in a log.

[ksmyth]

Ah. Got it. I'll do that tomorrow when the car has cooled off.