T43/E38 Scaled Shifting

[Webbs]

Please help me sort this out in my brain. So I had to scale my ID1000 injectors to get them to work within the limits of my operating system, and thus scale the rest of my airflow tables in my tune. What I am having some issues with is getting the trans to shift without flaring. I have done a good amount of work in the E38 Torque Model B3033 as well as the shift pressures in the T43, and its better bur not correct.

Correct me if I am wrong but by scaling the airflow model in the ECM I am changing the way the ECM calculates torque. So the scaled airflow is giving the trans incorrect values when it is looking up line pressure causing the flaring issue. Is this correct or am I missing something?

[joecar]

Yes, you are correct...

you would have scaled airmass down with the injectors, and torque is calculated from airmass, so now your torque model is too low...

you will have scale the torque model up...


see this thread: Improving-shifts-via-the-ECM

[Webbs]

Ok, I've got it shifting great under crusing and part throttle but under WOT it acts like it is hunting for the correct gear. It will pull to 4000 rpm in first gear then it feels like it hits a limiter. If I let off the throttle it will shift to 2nd but if I roll back into the throttle it will pull the gear but then it bucks and acts like it does not know what to do. In manual mode it will pull all gear to redline? Any thoughts?

[swingtan]

Attach a log of the issue, with the ECM / TCM tunes.

I've set up the same combo and not had this issue. It took a lot of wok on the torque model though.

[Webbs]

Attach a log of the issue, with the ECM / TCM tunes.

I've set up the same combo and not had this issue. It took a lot of wok on the torque model though.

Here are the tunes for the engine and trans. Thank you for looking.

E85 Cam Base_85lb scale -55.tunTrans_0004.tun

Webbs

[swingtan]

Hmm.... I can't seem to open those in EFILive. Can someone else try and let me know if it's just me?

Simon

[Webbs]

Hmm.... I can't seem to open those in EFILive. Can someone else try and let me know if it's just me?

Simon

I can email them to you. PM me your address'

[darcy]

Hmm.... I can't seem to open those in EFILive. Can someone else try and let me know if it's just me?

Simon

Both seem to open fine for me, Simon.

[joecar]

Simon, what V7 build version are you running...?

[swingtan]

Build 211, which I believe is the latest.

I'm going through two proxies though and there may be something going on there. I'll try going direct to see if it's any different.