Calibration Integrity of the 2010–2012 EcoBoost SHO HPTuners

[802SHO]

So basically I reached a point where the existing commercial definition could no longer answer the question. Instead of guessing mechanically or globally increasing pressure, I obtained the OS documentation, identified the missing control path, and worked directly with an HP Tuners engineer to expose individual VFS pressure scheduling. Now the next test can separate insufficient commanded clamping force from an actual hydraulic or mechanical fault.

 

[802SHO]

Got it!
Stock is 110 psi to all. We got some headroom. Just need to learn what that headroom is. Clutch pressure control is now here!

 

[802SHO]

I called Sonnax hoping they could tell me more about the solenoid pressure capacity and they didn’t know. They said post on HPTuners forum and/or contact my transmission builder.

I spoke with Kevin Quinlan and this is what he said:
So I’m starting them at 132 psi. Since they are all 110 I’m changing them all. I don’t believe they’re going to need too much. 50% more pressure would be 165psi.

20% is a safe starting point. Now that the TCM is programmed to its native GUB firmware everything will be speaking the same language. I’ve added all these channels to VCM Scanner when I log
I’ll just do 5-6 laps around the house easy as it relearns bc I also cleared all adaptive learning. Then I’ll just take it easy. Attempt to see if it grabs or not. If it slips at all. I stop and go back home and review the log.

And if it all looks good I’ll add more pressure. But I suspect I’ll feel a difference in 2 ways. It being programmed in all GUB now. And that 20% increase is going to be felt…so we will see

 

[802SHO]

Holy f shit. So I had my digital assistant help me setup TunerPro and make an XDF file to add scalars myself to HPTuners after buying a user defined license. It worked flawlessly! Check it out! It even sent me a dummy bin file to satisfy a TunerPro bug that was originally stopping me from completing a scalar. I downloaded it and uploaded it to TunerPro and it let me start making them. So f cool.
Next I’ll learn how to setup a 2D table

 

[802SHO]

Hit a snag. Since I reprogrammed the TCM to GUB it altered my OS. Not recognized by HPTuners. I had to do a read on the ECU with it still tuned. Even though it was tuned it like auto restored every change to stock. I compared the new stock GUB file to my other stock file and they are at least identical in the software but definitely not the same strategy.
Before- DMJKBL5
After- DMJKB52

Cost me 2 credits. I already had 6 credits so it didn’t cost me anything.
The 13+ Tricore is Kryppto’s. I bought the MPVI3 from him.

So now I need to use the compare function and remake the tune file for DMJKB52.

I learned how to copy an entire table and paste it to the new stock file. That’s making redoing the file a lot easier. Not quite done but getting there.

I feel like I’m really starting to get the HPTuners workflow a little bit

 

[SM105K]

I would be worried if I was a tuner honestly. AI is opening Pandora's box in many ways.

 

[802SHO]

Yeah or tuners need to be on their A game. You can learn as you go but if you are working with a tuner who is really f good…you have no reason to check their work.

Ryan and I are having a conversation about driver demand torque request and the indicated engine torque tables and inverse.

He tried to say 500 driver demand lands on indicated engine torque as 500 and that’s 1.6 load.

But bc I have 100+ hours in my specific OS and looking at logs …everything I’ve done…I don’t take what he said like law. I say ok, then why did the last log I sent you request 478 brake torque in a WOT blip, not even a sustained pull, and that landed at 640+ torque in indicated torque and 2.0 load inverse? I didn’t even request the full 550 driver demand.

Crickets since I sent that. lol He’s had a lot of success with EcoBoost in general but his 30-60 min takes …if they are wrong…I catch them from my 100+ hours living in my specific OS only. I can still learn a ton from him but I see the file, I see what the car did and I can reconcile it. What he just tried to say actually has not been the case for any file or any log.