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08-06-2014, 08:06 AM | #23 |
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08-07-2014, 08:07 AM | #25 |
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Let's hope so.
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08-07-2014, 09:00 AM | #27 |
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Maybe a bit off topic here, but I still can't undersatnd why BMW won't allow you access to the DME. If it were my decision, I would allow any owner a key to open their specific DME in exchange for a full release of the warranty for any damage to the drivetrain that could have been caused, directly or indirectly, from any modification to the DME. Now you have a bunch of very happy owbers who are willing to risk the warranty coverage for a tune and you have some very fast M cars out there with a better chance of smiking the competiton. All good for BMW and M. And finally, you will get to sell some new engines every once in a while to the bozo who blew his up with a bad tune. I am not seeing the downside?
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08-07-2014, 09:12 AM | #28 | |
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There is also the matter that manufacturers are bound by law (at least in the EU) to have anti-tampering measurements in place to avoid modifications that affect emissions. |
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08-07-2014, 09:16 AM | #29 |
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I am not sure about the emissions laws, but you could certainly leave those locked with a basic lock (like they have on the E60). I doubt the law requires a set level of tamper resistance. Also, I don't hink this translates to multiple smoking M5s.
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08-07-2014, 09:22 AM | #30 |
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Latest info from LEIB Engineering after talking with them:
I will quite possibly meet them later in August and might be able to report more then |
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08-07-2014, 09:42 AM | #32 |
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08-07-2014, 09:49 AM | #33 |
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Not sure why they would want to keep other tuners out... They lose the entire US market when given a proprietary software like setup they could reap benefits on markets they wouldn't have had access too.
License it out to each tuner for say 50k-100k (figure there are 10+ tuners, I cant imagine they'd make that much doing flash tunes for just the euro market alone) |
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08-07-2014, 09:55 AM | #34 | ||
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08-07-2014, 09:57 AM | #35 | |
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Obviously EU law doesn't say that it needs to be at the high level of encryption BMW seems to have chosen for the F-series. The multiple smoking BMW's was a scenario that you possibly would see a bit more if each owner is given a key that gives access to the DME. Some/many owners would then probably choose to buy online tuner software and develop their own tunes... |
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08-07-2014, 10:18 AM | #36 |
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It's what I thought . The encryption is not broken , they are just bench flashing the ROM by soldering to the ECU board thus it taking two weeks . No way in hell am I letting someone do that to my ECU.
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08-07-2014, 10:32 AM | #37 |
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08-07-2014, 10:32 AM | #38 |
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08-07-2014, 10:49 AM | #39 |
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They are taking the ECU apart and directly accessing the memory and changing parameters thus avoiding the encryption . So they look up a table for target AFR's and boost and then change them . Knowing where the tables are , how the ECU will react etc still takes awhile that's why it takes so long to tune one car . A very brute force approach if you will and likely the only one that ever will be available for the M5/6 .
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08-07-2014, 11:26 AM | #40 |
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From what I understood, they will provide the other tuners either with the process (for a fee of course) or they will provide them with the flashed DME's ready to use.
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08-07-2014, 11:30 AM | #41 | ||
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They currently have three methods to this: Quote:
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08-07-2014, 11:34 AM | #42 | |
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They do work with the DME in their workshop, but the DME still has the stock software when it goes back in the car. It's only when the DME is back in the car that they start the tuning process/uploading the new maps etc. |
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08-07-2014, 11:38 AM | #43 | ||
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08-07-2014, 11:43 AM | #44 |
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So basically where one might sneak a fiber probe camera under a locked door to have a look around [flash tuning], this is akin to a battering ram through a wall and making your own door
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