[_TB_]

Originally Posted by bradsm87

Is anybody custom tuning at the moment and suspected to be limited by the torque limit per gear table? If so, I suspect it's at an 8-cell table starting at 53DA8 in the format of gears 0-7. It can be shortened to simply gears 1-6 starting from 53DAA as they would be the only useful cells.

I do not have my car back and am not able to test this yet. Does somebody have a Windows exe tool ready to run to convert GKE215 0pa and 0da files to bin files that can be viewed with TunerPro so I can check some other stock files for comparison?

This is also what I have marked as a possible TorqueLimit - but I'm unsure of it. The files I have compared do not differ for those values. The Alpina should be set higher (which goes along the 560nm limit in my Alpina), but it is the same values in a non-Alpina file. :/

I have not had the time to test changes made to those values yet.

[bradsm87]

Originally Posted by _TB_

This is also what I have marked as a possible TorqueLimit - but I'm unsure of it. The files I have compared do not differ for those values. The Alpina should be set higher (which goes along the 560nm limit in my Alpina), but it is the same values in a non-Alpina file. :/

I have not had the time to test changes made to those values yet.

What I didn't realise is that the torque limit issues with stock vs Alpina is only in 5th gear and that the torque reported to the TCU is lower than the torque actual value logged by MHD. That's what makes me now think that this is the table.

[bradsm87]

Originally Posted by DWR

Well, you said you have tuned engines and you probably didn't have the disassembly for the ECU. Not dead unless you are waiting for someone else to do it for you. If you understand how the trans works and you get a hold of a damos, as I suggested, you can figure out many things ... but it does take a lot of work, as others have noted. If you want something other than what has been provided, you will have to do the work or create a team to do it, IMO.



Figure out how to log the EDS PWM and you can answer your own question.
I know you won't believe this, but the disassembly is so complex it is often easier to do experiments to find the answer.

Yep looking and experimenting is how I found cooling mode ambient temp target for N54 to target a lower coolant temp. As soon as I get my car back, I'll test the suspected torque limit per gear table too.

I just missed out on a free download link on a forum to a map pack containing the BMW 8HP DAMOS before it got taken down I'm always looking though and am more than happy to pay an affordable price for it.

[DWR]

Dang, that's too bad.

You could also try VAG 6HP28AF GS19 3.0l TDI 176kW 8K0927158A.
https://damos-files.ru/vag-cars/gearbox-dsg/ $270.

[DWR]

Originally Posted by bradsm87

What I didn't realise is that the torque limit issues with stock vs Alpina is only in 5th gear and that the torque reported to the TCU is lower than the torque actual value logged by MHD. That's what makes me now think that this is the table.

One of the "benefits" of methanol injection. Additional torque does not show up on the CAN, but the trans can still compensate.

[DWR]

Originally Posted by _TB_

This is also what I have marked as a possible TorqueLimit - but I'm unsure of it. The files I have compared do not differ for those values. The Alpina should be set higher (which goes along the 560nm limit in my Alpina), but it is the same values in a non-Alpina file. :/

I have not had the time to test changes made to those values yet.

Why should the torque limit change with the engine? Shouldn't the torque limit be for the trans? Unless it is just a maximum torque during a shift, the values do not make sense for the 335d. It would always be below OEM torque peak.

[_TB_]

Originally Posted by DWR

Why should the torque limit change with the engine? Shouldn't the torque limit be for the trans? Unless it is just a maximum torque during a shift, the values do not make sense for the 335d. It would always be below OEM torque peak.

The original 325d is limited to 500nm, the alpina is limited to 560nm. I just cannot find the difference in the binaries.

[bradsm87]

Originally Posted by DWR

Why should the torque limit change with the engine? Shouldn't the torque limit be for the trans? Unless it is just a maximum torque during a shift, the values do not make sense for the 335d. It would always be below OEM torque peak.

335d trans flash has 800nm limit for every gear if this is the table. 330d is 800nm in all gears except 5th which is 752nm.

I know what you're saying but different TCU flashes have sometimes put different torque limits for the same trans hardware for whatever reason (eg. stock 335i 465nm in 5th but 560nm on Alpina)

[bradsm87]

I can get a "BMW 3er 8HP" TCU OLS file for 150 Euro if anyone is interested in pitching in for this file. I can do 50 Euro so 100 Euro to go!

[DWR]

Originally Posted by DWR

Why should the torque limit change with the engine? Shouldn't the torque limit be for the trans? Unless it is just a maximum torque during a shift, the values do not make sense for the 335d. It would always be below OEM torque peak.

My bad, was looking at the wrong address.

[DWR]

Originally Posted by bradsm87

I can get a "BMW 3er 8HP" TCU OLS file for 150 Euro if anyone is interested in pitching in for this file. I can do 50 Euro so 100 Euro to go!

Is this a super mappack? Is it locked? If so, can you get an exported CSV map list so that it can be shared? I'm happy to help, but only if it can be shared somehow with the community.

[bradsm87]

Originally Posted by DWR

Is this a super mappack? Is it locked? If so, can you get an exported CSV map list so that it can be shared? I'm happy to help, but only if it can be shared somehow with the community.

I have exactly the same intentions. Everything will be shared.

I'll get the seller to show screenshots of the files open and working before buying.

[TDIwyse]

Originally Posted by bradsm87

I have exactly the same intentions. Everything will be shared.

I'll get the seller to show screenshots of the files open and working before buying.

I'll contribute some funds as well if this helps the community.

[mcmahand]

Originally Posted by RBT-Tuning

As I didn't notice that incidence until now, I urge you to go to our website and contact us through E-Mail, so we can help you! --> www.xhpflashtool.com

I have to give props to Clemens with xHP for all the trouble shooting support during this whole time. I received a different cable from BimmerGeeks (pro version) and it works flawlessly. The issue on my flash was the cable from BeamerSoftware, they said it tested fine on their end but it would not work for my car. BimmerGeeks cable worked first try! I'll I can say is this car shifts awesome now

Honestly I would recommends stage 3 v1.2 over the stage 2 map. For me stage 2 shift points for 1-3 is what I truly hate about the current 3 series trans shift pattern, it shifts way too early for non spirited driving.. But the response from paddle shifting is

[bradsm87]

We'll have a BMW 8HP and a VAG 6HP WinOLS file very soon. It looks like one person is happy to pay for the files then probably distribute on a donation basis.

[robnitro]

Unfortunately until they support x5, I will be waiting.

Mcmahand, what a pain with these bmw's, so picky with cables and software. I just did a Bosch injector replacement and it won't accept the code. Badly written software designed to keep people like us from dabbling

[bradsm87]

For anyone who is interested in custom tuning or getting a custom tune in the future, Justin at Twisted Tuning has generously stepped in and purchased the BMW 8HP and VAG 6HP WinOLS files and he'll be happy to distribute them to any other 6HP table discovery enthusiasts if he can recoup some of the cost from some donations. Somewhere around US$30-50 is a good place to start IMO . If you can, throw something through to him as "send money to family and friends" so PayPal doesn't rip us. His PayPal ID is twistedtuned@gmail.com . He is in the USA (PayPal asks for the country you're sending to). Just put on the notes that it's a TCU OLS file donation. Every bit helps.

Cheers guys!

[DWR]

bradsm87 Thank you for getting that setup. I sent Justin a donation and I am looking forward to viewing those files.

In return, I would like to share some info you might find helpful. EDS pressure vs milliamp maps start at 62736. The axis is in millibar. Milliamps X 10 is the field value in the map.
The main pressure EDS #5, is at 62882. It is a pressure reducing valve that essentially tops out at the pump pressure. Just remember pump pressure is rpm dependent, so there is another correction factor involved (no surprise ). The first map is the EDS for the A clutch, as I believe they are listed alphabetical. Hopefully, the OLS will clarify some of the details for the 6HP28.

[rjahl]

Interesting, I think I saw something similar in the GKE211 maps and I could not understand the values and left them alone. Grrr, Now I need to got back and look at them again.

[DWR]

Originally Posted by rjahl

Interesting, I think I saw something similar in the GKE211 maps and I could not understand the values and left them alone. Grrr, Now I need to got back and look at them again.

Well, it is not like you are going to "tune" the values. They are what they are. In the neighborhood, before the 12 X 1s, there are some 12 X 5s that look like corrections for temperature vs milliamps (X10). After that there are some 4 X 3s that look like pressure regulation related to clutch holding while in gear. Then there is ... my purpose in sharing this is just to say any thoughts about setting the shifting pressures to some maximum pressure appears to be a little too simplistic.

[rjahl]

Originally Posted by DWR

Well, it is not like you are going to "tune" the values. They are what they are. In the neighborhood, before the 12 X 1s, there are some 12 X 5s that look like corrections for temperature vs milliamps (X10). After that there are some 4 X 3s that look like pressure regulation related to clutch holding while in gear. Then there is ... my purpose in sharing this is just to say any thoughts about setting the shifting pressures to some maximum pressure appears to be a little too simplistic.

The reality is your are correct, I'm probably never going to get there.

Frankly, I already have two of the Five items in my wish list for the GKE211 fixed. I'm not sure I'm going to dig much deeper than I already have.

I thought I had the rev limiter raised but the logs don't agree with me. So that will take some additional tweaking. I found the torque management maps so I should be able to improve the shift quality a little.

Frankly, Flashing the higher engine output TCU calibration file E85 Z4 3.0SI vs my original Z4 3.0i file made a huge difference. Should have flashed that a very long time ago. At least now, I can study the differences in the files.

[Mik325tds]

Just checkin in. I really like were this thread is going. Thanks bradsm87 and DWR! Unfortunately work has me burried these days and it'll probably continue like that for the rest of the year. So I won't be able to join the discovery effort .