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M2 Technical Topics > S55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Bad News for the Tuning Community?

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      10-25-2021, 12:19 AM   #463
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Piggyback fools the manifold air pressure sensor data. Works for a bump in power, but it's not equivalent to a tune at all.

A simple piggyback will just bump the boost up higher.
A 'smarter' piggyback will compare current boost signal and figure out how much to add based on pre-programmed values.


That being said... a 2020 M2CS is definitely tunable if built before 06/2020.
we are all just waiting for the tuners to crack the DME of the 06/2020+ cars so we can go back to tuning. Right now the only way is to get another ECU that is pre 2020. A piggy back is not nearly good enough as it doesn't change many of the parameters required from a good tune nor does it give the ability to delete the shit OPF filters that are on this car along with many other options.
You do realize JB4 will dessimate any OTS flash tune map on any platform on the entire market on its map 7 right. And JB4 now has 10+ years of R&D and updates. Driving is stock unless wot. And boost is increased by about 80%. JB4 attaches to your fuel lines and adjusts fuel flow.
There's more to a tune then just the max HP.
Like I said… only difference really on a flash is you get the dumb little pops that annoys everyone that you can adjust. Not only that but JB4 offers 7 maps for different conditions fuel etc. ability to clear codes log send logs and adjusts timing on the fly for a variety of variables. Driving is linear like stock when normal driving based off the power of each map. I mean what's there to miss. Maybe anti lag? But then your smacking out your turbos eventually. JB4 is the truth in all weather conditions fuel conditions and driving styles on a stock turbo.

And best part… flash will immediately void the warranty. JB4 takes a lot of digging because it only increases torque load. Usually that's only investigated on blown motors.

So now.. what was that about only max hp?
Not sure who you are selling to here. Most people in these threads understand the difference between a piggyback which applies boost changes and forces the ECU to compensate and a proper tune that remaps timing, fuel, etc. JB4 is primitive and, in my opinion, risky to run long term. As for warranty all of these methods will void it and can be discovered in the event of a failure. Warranty shouldn't be something you are trying to retain on your modified motor.
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      10-25-2021, 01:18 AM   #464
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Not sure who you are selling to here. Most people in these threads understand the difference between a piggyback which applies boost changes and forces the ECU to compensate and a proper tune that remaps timing, fuel, etc. JB4 is primitive and, in my opinion, risky to run long term. As for warranty all of these methods will void it and can be discovered in the event of a failure. Warranty shouldn't be something you are trying to retain on your modified motor.
Yeah, it's 2021, everyone knows what a JB4 does by now.

Arguing that your warranty will be intact except in the case when you need it is also amusing.
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      10-25-2021, 03:15 AM   #465
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Anyone who tunes their car should automatically understand that there is big big chance that their warranty will be void. If they are not ok with that, then they should not tune their cars, as simple as that. That is the same for both a Piggy or full tune.
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      10-25-2021, 07:21 AM   #466
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Dude, you showed up with your special edition f87 claiming it was making way more torque right off the assembly line than everyone else's car. You're not very objective or realistic about this stuff.

Dyno stock M2 comp Special edition https://f87.bimmerpost.com/forums/sh....php?t=1819564
Yep, not only are the hp estimates earlier wrong, but also running the "Map 7 with '26 psi'" will get you to shorten the lifespan and blow your turbos. Stock turbos have blown at 24 psi sustained. At high rpm, this is even more dangerous.

JB4 at 505whp (on an originally 425hp car) is fine for the price, but it's not the strongest, not the maximum capacity for safe stock setups, nor the most optimal. It works, it's very advanced, but it's still a device made to fool sensors.


You're also forgetting ignition timing tuning, which I guess is part of the "weird little codings"
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      10-25-2021, 08:30 PM   #467
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This s a lot of good info from a number of the resident experts. i think the message is its more than which application makes the most HP as so many factors to consider. How
the power is made piggy back vs Flash, and at what cost, short and long term implications etc. Great for information purposes as well as the entertainment portion ,,, At the end of the day it helps guide folks on how they modify their cars...
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      10-26-2021, 10:52 AM   #468
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This is what a flash tune and a lot of hours and cash can produce!! Well worth the effort.
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      10-26-2021, 11:49 AM   #469
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This is what a flash tune and a lot of hours and cash can produce!! Well worth the effort.
Woah! nice smooth curves, bet that's some fun
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      10-27-2021, 12:38 AM   #470
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Originally Posted by kimbow View Post
This is what a flash tune and a lot of hours and cash can produce!! Well worth the effort.
Woah! nice smooth curves, bet that's some fun
he must live in a tire store with those numbers.
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      10-27-2021, 05:31 AM   #471
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he must live in a tire store with those numbers.
I'm trying to wear the supersports out so I can get some bigger S4's...wont take long
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      10-27-2021, 05:32 AM   #472
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Woah! nice smooth curves, bet that's some fun
Good power delivery, nice and smooth and mental
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      11-01-2021, 12:54 PM   #473
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Subscribed! ��

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      11-02-2021, 03:10 AM   #474
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Suscribed! 🍿
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      11-18-2021, 06:10 PM   #475
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Whatever happened to the Carbahn piggyback? Still in development?
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      12-08-2021, 09:57 PM   #476
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Any updates on tunes for 2021 M2C? Is it still locked?
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      12-08-2021, 10:32 PM   #477
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Any updates on tunes for 2021 M2C? Is it still locked?
Enabled's method is still the only one available.
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      12-09-2021, 01:49 PM   #478
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Does this problem apply to all new BMW’s? Like the current crop of TU B58 powered cars. Any of the current M40i’ s (X3/4, M340,240i etc)

Can you flash the S58 in the M3/4?

In other words is it all BMW DME’s after 6/2020

I am just thinking out loud as if I want to get a G87 but from now on tuning is no longer an option I might just stay with my CarBahn Stage 1 F87.

I know there are piggyback options but I would rather not go that route.
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      12-09-2021, 02:52 PM   #479
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Does this problem apply to all new BMW’s? Like the current crop of TU B58 powered cars. Any of the current M40i’ s (X3/4, M340,240i etc)

Can you flash the S58 in the M3/4?

In other words is it all BMW DME’s after 6/2020

I am just thinking out loud as if I want to get a G87 but from now on tuning is no longer an option I might just stay with my CarBahn Stage 1 F87.

I know there are piggyback options but I would rather not go that route.
*IF* it has the Bosch MG1 DME (also known as DME8) after 06/2020, there are unlock options available. This would be the S58/B58. In this case, the DME would have to be sent to Europe for a company to unlock.

If it has the Bosch MEVD17 DME after 06/2020, (i.e. pretty much only S55) there is no unlock.


They are completely different hardware and do not mix.
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      12-09-2021, 03:33 PM   #480
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Quote:
Originally Posted by Enabled View Post
*IF* it has the Bosch MG1 DME (also known as DME8) after 06/2020, there are unlock options available. This would be the S58/B58. In this case, the DME would have to be sent to Europe for a company to unlock.

If it has the Bosch MEVD17 DME after 06/2020, (i.e. pretty much only S55) there is no unlock.


They are completely different hardware and do not mix.
So to be clear what does the Euro company know that we in the US dont about the B58/S58 DME’s? Will an American company be able to do this within the next year?
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      12-09-2021, 06:56 PM   #481
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They disassembled the software and hacked/found a security "back door" to access the new DME's memory.
It's not just knowledge, but a lot of code disassembly, clever hacking, and probably some luck.

The latter question is impossible to answer without speculation and guessing.
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      12-09-2021, 11:10 PM   #482
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This is from Instagram,

2021 M2cs DCT,
cloned and tuned DME
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      12-10-2021, 12:56 AM   #483
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Originally Posted by Levanime View Post
This is from Instagram,

2021 M2cs DCT,
cloned and tuned DME
They're using Enabled's replacement DME method. We posted the details fully expecting others to follow. There are a couple of companies offering his method (without credit to where they got the idea of course).
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      12-10-2021, 04:29 PM   #484
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Quote:
Originally Posted by FaRKle! View Post
They're using Enabled's replacement DME method. We posted the details fully expecting others to follow. There are a couple of companies offering his method (without credit to where they got the idea of course).
That's my post on Instagram as I did that job,
Enabled is very smart, knowledgeable, and skilled,
Although I don't know why is this method called his method, I dont actually remember when I did first car, but it does not matter

I also clone 2021 Supras, G8x, etc
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