Hello,

I am looking for resources to help tuning BMW's B58 engine, notably:
* funktionsrahmen for the MG1 ECU
* bin files with one or more calibration goals (e.g. stage1, stage2, upgraded turbo, etc).
* XDFs and stock bins for the B58 are already available at https://github.com/dmacpro91/BMW-XDFs.

For now, the software versions are not super important because it would be enough to establish the differences from stock.

The B58 tuning world is still very closed and protection minded. That's  a shame becuase it makes it hard to learn the platform and leads to buggy tunes and engine failures. I'm hoping this community can help.

That's of no help. Can you actually provide anything?

But, to reword my last sentence, let's make the resources available for technically minded people to learn about and develop tunes of their own.

The XDFs are a great resource, but they are hardly serving it up on a plate. Whoever developed them seems to have had a hand in both MHD and JB4 and I'm guessing really knows what they are doing.

The best guide is from ECUTek here https://ecutek.atlassian.net/wiki/spaces/SUPPORT/pages/170557464/B58+Tuning+Guide. There's also a good youtube video from RFP tuning here: https://www.youtube.com/watch?v=zzqAQwAJrdw&t=9s. These two guides disagree with each other or a few points, however, which is why I asked for the functions document.

Those three resources alone go a long way to truly cracking the platform, so I agree with you in part, but it still needs a few last pieces adding to the jigsaw IMO.

Until then, B58 owners still don't know what the fuck is on their ECUs tbh and I read of tune-related engine failures quite often on the forums. So if you have any of the resources I asked for then forward them so I can try to contibute one or two of these pieces myself.

It's a good suggestion. I have a car, I can log it and I can sort of cobble together a tune. I've been interested in/learning tuning for about a year.

To progress, seems I want two things:
-- The B58/MG1 functions document
-- Working bins from more experienced tuners

Getting hold of the funktionsrahmen was the advice of James O'Connor from the fileservice and it seems a pretty good suggestion to me. No amount of logging is ever going to replace the reference work written by Bosch.

By the way, normal behaviour in the software world is to make documents easy to get hold of then berate newbies for not reading them. Seems bizarre nobody can just forward a link to the funktionsrahmen.

Re the bins. There are tunes on the common tuning platforms put together by people with years of tuning experience and hours of dyno time. I'd be a dumbass to think those tunes won't teach me a lot. Alas, those files are encrypted and I don't have the tools to extract them. I guess many on this forum do. That's why I posted the question.

Maybe I should segue into how I can get calibrations, unencrypted, off of my ECU?

This guy basically wants to make an open project by using other's people work and hard earned money and experience and all of it for free, so he can profit and then start claiming he's a pro tuner and start making megabucks. Totally wrong approach, and your level of entitlement are something I've rarely seen in over 20 years in this business. Eat some humble pie because NOBODY in their right own mind will help you with this kind of shitty attitude.

As someone who went from zero to DIY tuning on a semi-modern platform (Simos18):

* It is unlikely someone is going to send you the FR randomly, because it's stolen internal proprietary material. Just like in any other engineering where you're not going to get NDA datasheets or SDKs on a public forum. This is only a little bit of a gatekeeping elitism thing, it's mostly a not getting in trouble thing.

* You don't want to look at other people's BINs. 99% of commercial tunes are unbelievable trash, and by the time you can understand the 1% that aren't, you need to know how to tune anyway.

My feedback is:

You are approaching this as a procedural problem, or a "how 2 see maps 2 make tune" approach. That's not how tuning works. I call this the "mind virus" and it's rampant in tuning - "tuners" think of tuning as some procedural thing and steal "what maps to edit" from one another in a big circle jerk, producing the same garbage broken products.

What you want to do is:

Learn the combustion fundamentals of an engine. Not just the raw "AFR/timing" basics that you need to tune some 1980s American V8, but about direct injection / injection timing windows, VVT/dynamic compression, VVL, how a turbocharger works.

Learn the ECU's control strategy. You need the FR for this, probably, but you can learn the basics using cross-correlation with older ECUs from similar families (MG1 on other platforms, older BMW MED17 stuff, etc.).

Then, apply this learning to making a tune. You won't need someone else's file to do this. You can make changes bit by bit, data log, understand the effects, and refine until the car runs well.

Copying other people's tuning doesn't get you very far at the end of the day, especially if you want to build a community or teach others. You will just get the mind virus where you can only steal things. Understanding and documenting what is going on will help you much more than stealing binaries.

You have to admit there is a level of gatekeeping that goes on this world. You need to find the right files, right groups, right chats, etc... It's the same way with people who work with scenegroups or P2P servers...

However, this level of gatekeeping is required for us to keep the stove at low heat.
I think it would be a good idea for someone to DM OP... Just saying... He might actually be useful and provide something for us in the future as a result.

There is literally an bmw MG1 fr avaiable on this website for free.
as far as an a2l for the b58, it is also avaiable for free, just search.
You should try and read first the fr before making any changes.
for logging, you could use the standard diagnostic tool, or vehical logger for propper tunning, as to be honnest, standart diagnost logging is pretty much useless, at least in my opinion.

Also keep in mind, most of this information is stollen, of course this things dont just pop up, people dont want to get in trouble. its the world we live in.

Maybe James could sell you an open OTS calibration that is a clean/minimal change for your ECU to study. It will save you time going through all the boring limits that have to be raised, but it is still worth understanding why they are changed. We certainly find our users on Audis appreciate having open OTS maps they can view and edit with a supplied xdf in English and the ability to ask us questions about what we change and why. With consolidation of duplicate tables, it leaves an easy base for people to set a boost target, lambda target and clear ignition control and tuners that know how to tune but don't know the platform have enjoyed it and got good, reliable, smooth results.