600 rpm slip limit solved!!!! OS 25941752

Printable View

Show 40 post(s) from this thread on one page

May 31st, 2013
mitchd

2 Attachment(s)

600 rpm slip limit solved!!!! OS 25941752

Hey guys figured I better make my first post here a good one so here it is, after countless nights awake reversing code in the a40 tcu

I HAVE FOUND AND AM ABLE TO CHANGE THE FACTORY SLIP LIMIT 625rpm!!!,

her is a log proving I have done this! I would like to test this on a few others so for anyone who wishes for me to change your limit send me a copy of your stock tcu file and i will change it to whatever you like.

I got a full binary from ross and decompiled with idapro. There is also two more colums in the tcc on ramp rate that arent available in the current
efilive calz file, this and 900+ rpm slip at lockup in third will break the tires loose!
Attachment 15224
May 31st, 2013
mitchd

1 Attachment(s)

here's a pic of my modified Efilive calibration to edit the slip limit and the whole TCC on ramp rate.
Attachment 15227
June 1st, 2013
vortecfcar

1 Attachment(s)

First of all, congratulations!

That's a worthy first post if I've ever seen one.

Did you find this as a simple Hex address or does it require you to patch the O.S. Just curious.

Ive attached the OS for you to apply the update to, or you can send me the hex adress and ill edit it.

Either way, welcome to the forum!

Nick

ps- Is there a way I can contact you privately? The PM function is not active on your user name.
June 1st, 2013
Dmaxink

600 rpm slip limit solved!!!! OS 25941752

Great work!
June 1st, 2013
Dmaxink

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by mitchd

Hey guys figured I better make my first post here a good one so here it is, after countless nights awake reversing code in the a40 tcu

I HAVE FOUND AND AM ABLE TO CHANGE THE FACTORY SLIP LIMIT 625rpm!!!,

her is a log proving I have done this! I would like to test this on a few others so for anyone who wishes for me to change your limit send me a copy of your stock tcu file and i will change it to whatever you like.

I got a full binary from ross and decompiled with idapro. There is also two more colums in the tcc on ramp rate that arent available in the current
efilive calz file, this and 900+ rpm slip at lockup in third will break the tires loose!
Attachment 15224

Heck man if you want just send me that TCU file to [email protected]!

I will test Monday!

Thanks,
Kory
June 1st, 2013
ScarabEpic22

This is going to be HUGE for the Allison guys...
June 2nd, 2013
THEFERMANATOR

Quote:

Originally Posted by ScarabEpic22

This is going to be HUGE for the Allison guys...

I see alot fewer lockup boxes being sold. Now if somebody could find the torque converter unlock table at 0% throttle I would be alot happier. Having the converter unlock below 55 anytime I let off the throttle regardless of where I set the unlock table is rather annoying.
June 2nd, 2013
Wheelz

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by THEFERMANATOR

Having the converter unlock below 55 anytime I let off the throttle regardless of where I set the unlock table is rather annoying.

Agreed 100%
June 2nd, 2013
ScarabEpic22

Quote:

Originally Posted by THEFERMANATOR

I see alot fewer lockup boxes being sold. Now if somebody could find the torque converter unlock table at 0% throttle I would be alot happier. Having the converter unlock below 55 anytime I let off the throttle regardless of where I set the unlock table is rather annoying.

Agreed, but it's a global truck issue. REALLY wish the T42s would have this table in truck OSs, not just car OSs.
June 2nd, 2013
THEFERMANATOR

Quote:

Originally Posted by ScarabEpic22

Agreed, but it's a global truck issue. REALLY wish the T42s would have this table in truck OSs, not just car OSs.

I'm running the AL5, not a GM T42 TCM. The ALLISON TCM has ALOT of un-mapped parameters in it.
June 3rd, 2013
ScarabEpic22

Quote:

Originally Posted by THEFERMANATOR

I'm running the AL5, not a GM T42 TCM. The ALLISON TCM has ALOT of un-mapped parameters in it.

I know, Im saying in general it'd be nice if the parameter was available (essentially on ALL PCM/TCMs).

Ive hear the Allisons have a lot of unmapped params in it, but how much more is really necessary? Not trying to start anything, just honestly curious? Except for this converter slip issue with looser TCs and the TC unlocking on 0% TPS, what else do you want?
June 3rd, 2013
THEFERMANATOR

Quote:

Originally Posted by ScarabEpic22

I know, Im saying in general it'd be nice if the parameter was available (essentially on ALL PCM/TCMs).

Ive hear the Allisons have a lot of unmapped params in it, but how much more is really necessary? Not trying to start anything, just honestly curious? Except for this converter slip issue with looser TCs and the TC unlocking on 0% TPS, what else do you want?

I know there is also the issue of teh converter unlocking in certain TCM OS's during WOT shifts, and due to converter slippage will not relock. MANY people would like to be able to alter the grade breaking feature to make it actually work all the time, but this one would get tricky considering it works off an adaptive algorythim. And don't forget the ever annoying adaptive shift learning of some OS's. The 01 TCM OS is a pretty consistent shifting OS, but the 03-05 OS's can be unpredicteable at best to say the least.
June 3rd, 2013
ScarabEpic22

Quote:

Originally Posted by THEFERMANATOR

I know there is also the issue of teh converter unlocking in certain TCM OS's during WOT shifts, and due to converter slippage will not relock. MANY people would like to be able to alter the grade breaking feature to make it actually work all the time, but this one would get tricky considering it works off an adaptive algorythim. And don't forget the ever annoying adaptive shift learning of some OS's. The 01 TCM OS is a pretty consistent shifting OS, but the 03-05 OS's can be unpredicteable at best to say the least.

Got it, sounds like a fun can o worms to open up.
June 4th, 2013
THEFERMANATOR

Quote:

Originally Posted by ScarabEpic22

Got it, sounds like a fun can o worms to open up.

Yep, hence why no one has opened it yet. It would be nice to get ahold of a copy of ALLISON's DOC software to do these changes, but it is locked down some kind of tight when it comes to doing changes on the 2500/3500 tune files.
June 4th, 2013
Quinton

1 Attachment(s)

600 rpm slip limit solved!!!! OS 25941752

Here is my current TCM tune im running if you would like to change it and ill try it out
June 6th, 2013
mitchd

Sorrry Quinton, havent gotten the 5 speed working yet, gonna take a better look this weekend. The Six speeds work awesome though, kinda worried about my input shaft when it locks with 1000rpm slip!
June 6th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by mitchd

Sorrry Quinton, havent gotten the 5 speed working yet, gonna take a better look this weekend. The Six speeds work awesome though, kinda worried about my input shaft when it locks with 1000rpm slip!

Alright well let us know when you figure it out!
June 7th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by mitchd

Sorrry Quinton, havent gotten the 5 speed working yet, gonna take a better look this weekend. The Six speeds work awesome though, kinda worried about my input shaft when it locks with 1000rpm slip!

Could you post up the trans tune anyways so I can check it out? Or pm it to me. If like to take a look at it if you don't mind.
June 7th, 2013
mitchd

Quote:

Originally Posted by Quinton

Could you post up the trans tune anyways so I can check it out? Or pm it to me. If like to take a look at it if you don't mind.

there is nothing to see as the table is deep in the coding, and i cant disclose the adress for the competition to see. there are a couple more variables i have been playing with that seem to affect lockup based on tps changes, these really affect off throttle lockup.
June 9th, 2013
Dmaxink

600 rpm slip limit solved!!!! OS 25941752

We have the 5 speed stuff working! 6 speed I have not tested, but pulling it out the reef here soon and mapping as many OS as possible. Have not been able to test the OP tune yet, but have it as well... Cool to see this brought back up to life!
June 9th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by Dmaxink

We have the 5 speed stuff working! 6 speed I have not tested, but pulling it out the reef here soon and mapping as many OS as possible. Have not been able to test the OP tune yet, but have it as well... Cool to see this brought back up to life!

Nice! Can't wait to try it.
June 9th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by Dmaxink

We have the 5 speed stuff working! 6 speed I have not tested, but pulling it out the reef here soon and mapping as many OS as possible. Have not been able to test the OP tune yet, but have it as well... Cool to see this brought back up to life!

What tables are y'all editing for the 5 speeds?
June 9th, 2013
Dmaxink

600 rpm slip limit solved!!!! OS 25941752

Hex!
June 9th, 2013
mitchd

Quote:

Originally Posted by Dmaxink

Hex!

U still haven't answered me about that tune i sent u, did you try it or are you just reverse engineering my hard work? Dont really matter to me cause I have sent the addresses to Ross so he can include this variable in an update for all to be able to adjust. Cheers man!
June 9th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by mitchd

U still haven't answered me about that tune i sent u, did you try it or are you just reverse engineering my hard work? Dont really matter to me cause I have sent the addresses to Ross so he can include this variable in an update for all to be able to adjust. Cheers man!

Awesome! When do you think it will be updated?
June 9th, 2013
mitchd

Quote:

Originally Posted by Quinton

Awesome! When do you think it will be updated?

Ross said he would go through all the OS's and update the location and then post an update, he seemed pretty happy for me to give him the location so I would assume the update wont take long!
June 9th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Quote:

Originally Posted by mitchd

Ross said he would go through all the OS's and update the location and then post an update, he seemed pretty happy for me to give him the location so I would assume the update wont take long!

Awesome can't wait!
June 9th, 2013
GMPX

Once again thanks to Mitch for sharing the work he did.
Most importantly is I've found that we already have the table Mitch showed on he's first post included in the software, it's D5072, however, it was incorrectly defined as a 17 x 3 table, not 17 x 5 as Mitch has so we are not seeing the higher torque number axis points. But before I jump the gun here I need to check if it just so happened that an earlier OS had this as a 17 x 3 and only some have 17 x 5.

Edit, the 5 speed had that table as 17 x 3 (assumption isn't always a good thing!).
June 19th, 2013
30 RUM

I guess we can't rescale the torque axis? I know that would be to easy.

Thnx
June 19th, 2013
mitchd

Quote:

Originally Posted by 30 RUM

I guess we can't rescale the torque axis? I know that would be to easy.

Thnx

dont really need to rescakw the axis, i just edit the other two colums.
these should be in a future update for all .

cheers
June 19th, 2013
30 RUM

Sounds good,

Thnx
June 20th, 2013
BigTexas68

1 Attachment(s)

I would like to try your modified tune. Here is the tune I am currently running in my 08.

Thanks
June 20th, 2013
Quinton

600 rpm slip limit solved!!!! OS 25941752

Any updates on the 5 speed TCM?
June 25th, 2013
2wpuller

Quote:

Originally Posted by BigTexas68

I would like to try your modified tune. Here is the tune I am currently running in my 08.

Thanks

Would your tune work with my 07 8.1 os how is the closed throttle down shifts.

thanks for your info
July 23rd, 2013
chevy1925

Gotta bump this! Any more progress? I know a lot of people including myself that would love to be able to get into these tables
July 23rd, 2013
hondarider552

X2...
July 23rd, 2013
cindy@efilive

600 rpm slip limit solved!!!! OS 25941752

Modifications have been made. We just need to regenerate the cal files and include them in the next beta release. Once tested they will move into a public release.

Cheers
Cindy
July 24th, 2013
chevy1925

Quote:

Originally Posted by cindy@efilive

Modifications have been made. We just need to regenerate the cal files and include them in the next beta release. Once tested they will move into a public release.

Cheers
Cindy

even for 5 speeds or only 6 speeds?
July 24th, 2013
chevy1925

will it be included for the 5 speeds as well or only the 6 speeds?
July 24th, 2013
THEFERMANATOR

Quote:

Originally Posted by chevy1925

will it be included for the 5 speeds as well or only the 6 speeds?

What he said. I would like to get lockup in 2nd instead of waiting until late in 3rd or 4th.

Show 40 post(s) from this thread on one page

All times are GMT -12. The time now is 09:44 PM.