[ChrizLoud]

Sorry for not being clear, i was reffering to up-shift points while accelerating gently.
Some 335i guys with alpina flash says it up-shifts to early. I dont understand why they dont like it.

[Unklejoe]

Originally Posted by ChrizLoud

I do not understand why some of you guys want high rpm shifts in D-mode. The alpina flash for the 335i is awesome in D-mode. I wish the 335d had that low rpm shift points. D-mode is for crusing, not hammering. For that i use the S or M-mode. ��

I think the Alpina "D" mode is extremely terrible on the 335i. I’ve been suffering through it for about 80k miles now. I almost want to flash back to stock, but the insane improvement of "M" mode makes me stay with the Alpina.

It up-shifts at around 1500-1600 RPM pretty much regardless of engine load (unless you go almost completely WOT). The car will also shift into 6th gear by 40 mph (with the converter locked) which leaves you at like 1300 RPM. It just doesn’t feel right lugging a gasoline engine that hard at that low of an RPM. I find myself constantly having to click the downshift paddle when approaching a hill. On top of that, it's way too reluctant to downshift under heavy load. It won't drop down to 5th unless you basically floor it.

That being said, I can see why it would be good for a diesel, which is what this thread is about. The diesel handles low RPM power much better.

Also, as mentioned earlier, the “M” mode is really fantastic. It rev-matches and shifts almost instantly, and with a good firm action.

[RBT-Tuning]

Originally Posted by dave205t

Im not sure the efforts will transfer over at all, isn't the N54 335i auto trans a 6hp21 ?

Best regards, Dave

Wasn't your bench TCU a GKE215? (=6HP21)

From a mapping perspective 6HP26 and 6HP21 are identical.

[dave205t]

Originally Posted by RayBan81

Wasn't your bench TCU a GKE215? (=6HP21)

Yes, my test TCU is GKE215 according to BWM naming "6HP19/TÜ"

Best regards, Dave

[808AWD325xi]

Originally Posted by dave205t

Yes, my test TCU is GKE215 according to BWM naming "6HP19/TÜ"

Best regards, Dave

Yes, BMW refers to the 6HP21 as a 6HP19TÜ (Technische Überarbeitung = Technical Revision.)

[DWR]

We have confirmation of the TCC maps. Right where we thought they were.

RayBan81 was able to copy the entire Alpina cal TCC maps into his TCU with success. THIS GUY IS ON FIRE!
Please populate his posts with appreciation points. He deserves hundreds.

No release of TCC in 3rd gear at low speed. Everything working well. Team members are pleased how well the transmission is responding, and while I can't see their faces I think we have some big grins right now. We still don't know exactly how the TCC maps work, but give it time. The focus is getting a handle on the big pieces of functionality and then going back to get the details.

Starting to trackdown shift speed related parameters. Unfortunately, there are many candidates in the cal. Back to work ...

[ChrizLoud]

Wow!!! This is so great!!! I followed this thread from the very first post! I can bearly wait to try this out. Please let me know if you want beta testers 🙈😉

[_TB_]

Originally Posted by RayBan81

Public update from my side:

We successfully identified maps for D and M driving and are able to alter them in every way.

Some things, I've already changed and tested on my car:

M mode:

- Eliminated Kickdown in all gears
- Lowered minimal speed in 5th and 6th gear (= set it to 335d values, minimal allowable speed is higher on the 325d)
- M mode will now shift back to 1st gear below 3 mph

D mode:

- Lowered upshift points in middle throttle ranges (40 - 75%)
- Inhibited downshifting from 2nd to 1st at slow speeds and with middle throttle input (< 3 mph)
- Lowered downshift points in higher gears for a smoother drive.

Except from the TCC it now drives like a charm. This setup really let's you use the tourque below 2000rpm when just cruising around.

Richard

Please, please please share with us. The Alpina B3 is _so_ close to being perfect for a tuned 325d..

Things missing are

- ShiftPOints @ WOT - since it is made for a gasoline engine, it just "hangs" at 5.100 without changing gears @ WOT.

- Kickdown - again since it is made for a high reving gasoline egine, kickdown *may* switch so low that it will go way above rev limit..

- Downshifts - you really need to floor it for it to shift down a gear. The D3 file is much better, but it has other downsides.

So, please share your findings.

What map dimensions should I look for? 6x13 ?

[DWR]

Originally Posted by _TB_

Please, please please share with us. The Alpina B3 is _so_ close to being perfect for a tuned 325d...

So, please share your findings.

What map dimensions should I look for? 6x13 ?

To all curious on lookers, please be patient. This is taking considerable time and effort. We will not be posting map locations, axis indexes, software switches, etc. We do not have the bandwidth for everyone to study along side. Very sorry we can't do that, but it is too time consuming. We are having trouble enough keeping up with each others emails/findings. We are trying to keep you updated on our progress. Hopefully, you can understand. Finally, if you want to know map dimensions, all you need to do is inspect the graph I provided.

We are committed to serving this community. We also need to protect some intellectual property. Please trust us.

[Unklejoe]

Originally Posted by DWR

To all curious on lookers, please be patient. This is taking considerable time and effort. We will not be posting map locations, axis indexes, software switches, etc. We do not have the bandwidth for everyone to study along side. Very sorry we can't do that, but it is too time consuming. We are having trouble enough keeping up with each others emails/finding. We are trying to keep you updated on our progress. Hopefully, you can understand. Finally, if you want to know map dimensions, all you need to do is inspect the graph I provided.

We are committed to serving this community. We also need to protect some intellectual property. Please trust us.

Completely understandable. Do you see it as a possibility to expand this to the 335i once you get all the 335d things figured out? I hate to sound like a broken record, but if you're looking to develop a product, I think it would sell like hotcakes in the 335i community. Just saying

If you ever decide to expand this to the 335i, I'd be glad to be your guinea pig for testing.

I'll wait patiently until then.

[DWR]

Originally Posted by Unklejoe

Completely understandable. Do you see it as a possibility to expand this to the 335i once you get all the 335d things figured out? I hate to sound like a broken record, but if you're looking to develop a product, I think it would sell like hotcakes in the 335i community. Just saying

If you ever decide to expand this to the 335i, I'd be glad to be your guinea pig for testing.

I'll wait patiently until then.

I think the value of the work extends beyond what you have asked for.

[Arthuar]

Originally Posted by _TB_

Please, please please share with us. The Alpina B3 is _so_ close to being perfect for a tuned 325d..

Things missing are

- ShiftPOints @ WOT - since it is made for a gasoline engine, it just "hangs" at 5.100 without changing gears @ WOT.

- Kickdown - again since it is made for a high reving gasoline egine, kickdown *may* switch so low that it will go way above rev limit..

- Downshifts - you really need to floor it for it to shift down a gear. The D3 file is much better, but it has other downsides.

So, please share your findings.

What map dimensions should I look for? 6x13 ?

Then it would be considered suitable for an EU 05/2007 e91 330xd even?
Well done for Your hard work.

[RBT-Tuning]

@Everyone asking for calibrations besides the 335d:

Personally, I'm driving a 325d (same 6HP26 as 335d) and I do all testing on this car. Mik325tds does the same on his 335d. So we've got 2 different but very much the same cars to test and verify.

Additionally I'm comparing a lot of BMW stock cals from the GKE215/195 family to our work and I'm pretty sure that this tunes can be carried over to nearly any 6HP equipped BMW. There may be little tweaks necessary here and there but in general we should be able to tune 335i, 330i, 330d, 325d, 530d, 550i even Alpina B3/B5 and so on.

I allready started to tweak the Alpina TCC behaviour further and managed to get full lockup in 1st gear and corrected the release points in 3rd gear for example. There are still a lot of questions to be answered and additional maps to be found, but as DWR said, thats very time consuming and requires hours in front of bity and bytes at home accompanied by a lot of logging in the car. Not only from the ones who do the calibrations, but this is very much true too for our hero in first place dave205t!

I'm willing to do that, but I would have to give up something else in my life to have the time to get this right for all those cars out there. Thats the point where this project group is right now. We will meet all together in October in Germany to figure out how we are able to proceed and make this "dream" come true for everyone. So please be patient. We will keep this thread updated!

[Arthuar]

Originally Posted by RayBan81

@Everyone asking for calibrations besides the 335d:

Personally, I'm driving a 325d (same 6HP26 as 335d) and I do all testing on this car. Mik325tds does the same on his 335d. So we've got 2 different but very much the same cars to test and verify.

Additionally I'm comparing a lot of BMW stock cals from the GKE215/195 family to our work and I'm pretty sure that this tunes can be carried over to nearly any 6HP equipped BMW. There may be little tweaks necessary here and there but in general we should be able to tune 335i, 330i, 330d, 325d, 530d, 550i even Alpina B3/B5 and so on.

I allready started to tweak the Alpina TCC behaviour further and managed to get full lockup in 1st gear and corrected the release points in 3rd gear for example. There are still a lot of questions to be answered and additional maps to be found, but as DWR said, thats very time consuming and requires hours in front of bity and bytes at home accompanied by a lot of logging in the car. Not only from the ones who do the calibrations, but this is very much true too for our hero in first place dave205t!

I'm willing to do that, but I would have to give up something else in my life to have the time to get this right for all those cars out there. Thats the point where this project group is right now. We will meet all together in October in Germany to figure out how we are able to proceed and make this "dream" come true for everyone. So please be patient. We will keep this thread updated!

Thanks a lot about Your very clear explanation.
Understood everything.
I follow yours effort and waiting pretty happy.
Just in case, if I was kept updated, maybe I will jump to germany to meet You.

[_TB_]

Originally Posted by RayBan81

...
I'm willing to do that, but I would have to give up something else in my life to have the time to get this right for all those cars out there.

This is why it is frustrating that other are not allowed to help with some of the tests/investigations. I have said it before, I have years of remapping experience, I'm willing to use my 325d as a testmule, I'm willing to invest time into this - but it seems you have a closed group. My fear is that your efforts are turned into a closed and commercial project. Loads of users will be able to benefit from all of our findings - I'm just trying to offer my assistance.

[TheBoar]

Everyone working on this wish to say, thank you. I know a lot of time and effort are going into this. I appreciate everything that is happening and am patiently waiting for the benefits of all the extremely hard work that is being performed. Thanks to everyone involved and keep up the good work. Updates are appreciated but I feel everyone understands if we don't hear anything for a hit due to the work.

[robnitro]

Thank you guys for this. With the DDE locked out for a former TDI self tuner like me, I feel missing out on fun. If you need help with winols or formulas to calculate maps let me know. I came up with an inverse driver's wish calculator after making sense of the TDI cruise control, for example.

I recently got an 2011 x5 335d. Not chipped, but with resistor straight flat offset fuel rail pressure mod, shifting is better where light loads shifts earlier (less kick down!)

[_TB_]

Originally Posted by RayBan81

Personally, I'm driving a 325d (same 6HP26 as 335d)

What year is your 325d?

E91/90 uses 6HP19 - does the LCI use the 335d gearbox?

[wardpa]

N57 325d (150kW) from 9/2009 to end of production is equipped with the 6HP26TU.

[DWR]

Originally Posted by _TB_

This is why it is frustrating that other are not allowed to help with some of the tests/investigations. I have said it before, I have years of remapping experience, I'm willing to use my 325d as a testmule, I'm willing to invest time into this - but it seems you have a closed group. My fear is that your efforts are turned into a closed and commercial project. Loads of users will be able to benefit from all of our findings - I'm just trying to offer my assistance.

Sincerely, thank you for the offer.

[trebila]

Guys, in the N54 world, we use a ZF6HP21 , GKE215.
so your software should work on all N54 6AT (135i, 335i..).

I'd be glad to check if it works on my 135i AT. at least a read on my current GKE215 , alpina B3 flashed.

in our world, alpina B3 trans flash have great slip duration in M/S mode, but shiftpoints need to be edited slightly in S mode, and slip duration/shiftpoints need to be much more tweaked for D mode.

Martial, a french guy living in Germany, developped a DME flashing tool VIN locked for N54, it's an Android app, you need to purchase it on google store, working on Android phones/tablets, with a K+D-CAN cable.
All tuned N54 (and there is a lot), use MHD app to flash their DME.

I you plan to sell your TCU programming software, that'd be great to include it as a separate module in the MHD app.
it uses the same cable than your software, you could benefit the VIN lock feature of the MHD app, and sell your software throught the google store.

we're using tuner pro to tune our DMEs.
we could use it too to edit the TCU flash, easily.
If you want me to create an XDF file (table references file for tuner pro) once the TCU table discovery finished, it's not a problem, it will be fast if there is only 21 tables.

[_TB_]

Before we go down the "Damn them, they are going commercial" road, perhaps Dave, DWR, RayBan could share som info on what the actual plans are?

I think that could stop a lot of discussions and bad vibes.