[bimmerace]

Thanks guys, this was very helpful. Does anyone have Dyno results for both for WHP/WTQ comparisons? Also, I heard one of these two was coming up with the X-Drive to RWD hack like xHP is, any ideas on who it was? I was so deep into a forum that I can't remember which one it was!

[FastF30]

Originally Posted by bimmerace

Thanks guys, this was very helpful. Does anyone have Dyno results for both for WHP/WTQ comparisons? Also, I heard one of these two was coming up with the X-Drive to RWD hack like xHP is, any ideas on who it was? I was so deep into a forum that I can't remember which one it was!

You can't go by dyno... all dyno's read different... MHD has the Torque clutch Nm's on it's logging but until BM3 get's it there is no other true way of comparing unless you test same car same day same time same etc, etc................ besides if your so stuck up on max hp then your gonna get a custom tune anyways...

[ceedawg]

Originally Posted by ronanz

Very true. But to be fair, VAST majority of issues were/are user related...not platform related.

.

FACTS!!!

[XxThe_RemedyXx]

Originally Posted by nawfoo

Not a complaint but after I flashed my BM3 stage 1 91 octane I lost the ability to auto start/stop. guess its supposed to keep the car cooler after stage 1.

I don't think BM3 does anything that messes with auto start/stop.

[Korvo]

When I flashed BM3, I noticed that my sport gauges go higher. I also think that while this change was made, my LED settings were reset. I swapped them and got an error last night. Will have to use BimmerCode to check and see if BM3 messes with any settings.

[KC Bimmer]

So I’m currently FBO running JB4 only and looking at adding PS2 here soon. So if I understand correctly it sounds like both BM3 and MHD have PS2 maps I can use and could ditch the JB4, right? I’m contemplating additional fueling via WMI for which I’d need to use JB4. If that route is JB4 with MHD and BEF still the only option? A little concerned getting that one dialed in correctly as I’d like an option if possible that I wouldn’t need to run logs regularly as this is my DD. Also looks like BM3 has PS2 with XDFI 35 map option. That costs more but might be easier to set the tune and have consistency. Thoughts?

[insane11]

Bm3 doesn't have ps2 map.. I'm running ps2 with the xdi pump on Bm3 with custom map.

[KC Bimmer]

Originally Posted by insane11

Bm3 doesn't have ps2 map.. I'm running ps2 with the xdi pump on Bm3 with custom map.

Ok, good to know. Their site says additional maps available for upgraded turbos. So which turbos are supported? Stage 1 only?

How do you like your setup? Pros/cons? Thanks

[insane11]

Originally Posted by KC Bimmer

Ok, good to know. Their site says additional maps available for upgraded turbos. So which turbos are supported? Stage 1 only?

How do you like your setup? Pros/cons? Thanks

you can run stage 2 map on ps2 but custom tune is better to maximize the ps2.

[jgoens]

Originally Posted by Martin.328

Best thing about mhd is that evetything is done through your phone. You dont need anything else other than the cable.

When I was doing my research this was a huge plus for me as I have an Android phone. When I had a JB4 having to have a laptop in the car was burdensome. I keep the cable in the glovebox and when ever I want to do anything I just whip out my phone and its easy.

[newyork326]

Originally Posted by nawfoo

It was pretty cold last night and I guess I didn't drive the car much. Drove it today and the auto start / stop came back.

So I am going to be pulling the trigger on BM3 but can someone enlighten me on the after the fact costs that are going to come along with this? I understand you get one free time with the initial 600 bucks. What is the cost of additional OTS tunes? What is the cost to have a custom time done?

[ronanz]

Originally Posted by newyork326

So I am going to be pulling the trigger on BM3 but can someone enlighten me on the after the fact costs that are going to come along with this? I understand you get one free time with the initial 600 bucks. What is the cost of additional OTS tunes? What is the cost to have a custom time done?

I'd suggest purchasing the "Map Bundle" for the additional $50 as it'll include all stage variations including E30

Custom tune pricing is set by the tuner, I'd suggest contacting tuner directly for pricing

.

[harkes]

I have run BM3 for the last two years and recently switched to MHD. ONLY reason being that the support for PWG is better with MHD and that my tuner prefer this platform.

BM3:
+ Huge OTS base
+ Resell value
+ Self tune - if you dare :P
+ Flash times (not including connecting to agent and logging in)
+ Cloud based operation, everything is accessible from everywhere
- Agent (a F-ing pain to work with in almost all aspects )
- Lack of PWG tuners
- Buggy (new platform so to be expected)

MHD
+ Simple app, feels very solid
+ PWG support
+ Huge tuner base
+ In app log reader
+ Connect directly to OBD
+ Logging features like ign retard and clutch torque
- Longer flash times (~5min for map change with slow cable)
- Upload to Datazap to have access to logs
- No cloud so backup is recommended

I am 99% sure the same can be achieved on both platforms with a custom tune. My guess is that the BM3 OTS is more powerful.

[bradsm87]

Originally Posted by harkes

I have run BM3 for the last two years and recently switched to MHD. ONLY reason being that the support for PWG is better with MHD and that my tuner prefer this platform.

BM3:
+ Huge OTS base
+ Resell value
+ Self tune - if you dare :P
+ Flash times (not including connecting to agent and logging in)
+ Cloud based operation, everything is accessible from everywhere
- Agent (a F-ing pain to work with in almost all aspects )
- Lack of PWG tuners
- Buggy (new platform so to be expected)

MHD
+ Simple app, feels very solid
+ PWG support
+ Huge tuner base
+ In app log reader
+ Connect directly to OBD
+ Logging features like ign retard and clutch torque
- Longer flash times (~5min for map change with slow cable)
- Upload to Datazap to have access to logs
- No cloud so backup is recommended

I am 99% sure the same can be achieved on both platforms with a custom tune. My guess is that the BM3 OTS is more powerful.

You can self tune with MHD as the backup and flash tool. You just use the free TunerPro XDF definitions in order to use TunerPro to tune.

When you say PWG support, probably more correct is that MHD may be quicker to bring in OTS map updates. When it comes to new ROM support, unfortunately, they are slower. If you went from BM3 to MHD, you actually would have been downgraded from a 2018 ROM to a 2016 ROM.

[harkes]

Originally Posted by bradsm87

You can self tune with MHD as the backup and flash tool. You just use the free TunerPro XDF definitions in order to use TunerPro to tune.

When you say PWG support, probably more correct is that MHD may be quicker to bring in OTS map updates. When it comes to new ROM support, unfortunately, they are slower. If you went from BM3 to MHD, you actually would have been downgraded from a 2018 ROM to a 2016 ROM.

I am aware of the ROM "downgrade". My car was born in 2012 so no matter both are an upgrade and it drove just fine on the 2012 version

[bradsm87]

Originally Posted by harkes

I am aware of the ROM "downgrade". My car was born in 2012 so no matter both are an upgrade and it drove just fine on the 2012 version

I-Step update is one of the best things you can do to these cars!

They drive "just fine" stock but we still tune them don't we?

Car enthusiasts - When "just fine" isn't enough.

[JaredG_F30]

bm3 has a PS2 map for N55 PWG, not EWG. I'm not sure why but the map for PS2 is Stage 2H if you have PWG.

Originally Posted by insane11

Bm3 doesn't have ps2 map.. I'm running ps2 with the xdi pump on Bm3 with custom map.

Originally Posted by KC Bimmer

Ok, good to know. Their site says additional maps available for upgraded turbos. So which turbos are supported? Stage 1 only?

How do you like your setup? Pros/cons? Thanks

[Taskmaster]

Originally Posted by FSociety

Last but not least, check how there's barely any MHD Results on Dragy ;-) and if there is they're much slower than BM3 OTS

Anyone in Tri-State can msg me if they want to compare with some BM3 cars as there's barely any MHD willing to go to Mexico. All for fun enjoy !

Aren't all the OTS maps free now?

[bimmerace]

Now that we know some of the differences with pros and cons, does anybody have any of these tunes at high altitudes? I constantly go from 11k down to 5k ft., back and forth. The Jb4 freezes (stops responding) constantly and causes the car to go into limp mode until I restart the car, in the middle of this drive.

[harkes]

Originally Posted by bimmerace

Now that we know some of the differences with pros and cons, does anybody have any of these tunes at high altitudes? I constantly go from 11k down to 5k ft., back and forth. The Jb4 freezes (stops responding) constantly and causes the car to go into limp mode until I restart the car, in the middle of this drive.

JB4 is not a proper tune. I also used it for 3 years on my M135i and it was 24/7 work to keep it running optimally. JB4 is boost based as opposed to a flash tune that SHOULD be load based (not all are). A load based tune will in/decrease boost depending on altitude so you always get the same performance.

[Pray for Mojo]

Originally Posted by bimmerace

Now that we know some of the differences with pros and cons, does anybody have any of these tunes at high altitudes? I constantly go from 11k down to 5k ft., back and forth. The Jb4 freezes (stops responding) constantly and causes the car to go into limp mode until I restart the car, in the middle of this drive.

I live at 3200 ft, drive up to 5,500ft through the mountains. Never had an issue with BM3.

[ronanz]

Originally Posted by bimmerace

Now that we know some of the differences with pros and cons, does anybody have any of these tunes at high altitudes? I constantly go from 11k down to 5k ft., back and forth. The Jb4 freezes (stops responding) constantly and causes the car to go into limp mode until I restart the car, in the middle of this drive.

Same here, I’ve travelled in and around the Rocky Mountains and Utah...have gone anywhere from 2000’ to 10,000’ with zero bm3/tune related issues

However, I have experienced misfires at high altitude in which a plug change resolved.

.