Hp tuners, torque management clarity

[LSxBakakos]

Hey everyone, to tie back into my original post i ended up not being able to install the transgo as to i didnt realize its a FULL kit and the trans had to be dropped versus just vb.

Thankfully a month ago I did a little tune on my buddies 09, mainly trans function but some engine side

Fast forward, last Thursday I had a few hours to play on hptuners. My 4th revisions seems to be my favorite so far. I dont have the laptop in front of me and im going off memory so bare with me lol

Engine side was the basic remove throttle actuation limit below the 2250, brake torque limit, dod/afm disable, power enrichment and some other tables i learned off a tuner

Trans side i did use hptuners,transgo, and a few others to understand what i was messing with.

Oddly enough the stuff I didnt understand id screen shot and chat gpt to understand more about said function

currently

Line pressure is 150, and tapered out the chart a little bit. I think b was up from 215 to 220, the other went from 273 to 280


1-2 is at .20 across the board, 2-3,3-4 are around .33 I like a firm/quick shift, this is just my preference(ive never hated the shift feel of a stock trans more hence why im here)

Revision 4 gets down pretty well with stock ecm/tcm tm, tiny bark on the 1-2 but doesn't feel harsh

Revision #5 I tried to perfect what I did in 4 but more rowdy

i found how to disable ecm torque management,mess with inertia and disable trans tm. After resetting the top 3 adaptives I went, got a couple moderate shifts down before going WOT. Oddly enough shifts part throttle felt worse than before, then at WOT it felt quite violent lol. The small chirp went from that to 2 revolutions of violent drivetrain abuse, so at that moment I pulled over and loaded #4 back in

Saturday I made a revision with just engine tm reduced and or eliminated, and trans side reduced(i believe there was one i had to keep enabled). I have yet to load them in the truck, if anyone has any input im all ears

Thanks in advance!

Ill see if I can post a snippet of the wot run I took

 

[LsHart]

Where did u say u was located?

 

[LSxBakakos]

About 15 min from the Wisconsin border/ Lake County IL

 

[Foggy]

I've only dropped the numbers to about .75 ish and that seems to be pretty
quick shift for me. On the stock 2013 I did .900.. On the 2014 with built trans
I set them to .750
HPT: Trans > Torque Mangmt > Upshift > Torque Factor
The stock setting is 1.000

 

[LSxBakakos]

I've only dropped the numbers to about .75 ish and that seems to be pretty
quick shift for me. On the stock 2013 I did .900.. On the 2014 with built trans
I set them to .750
HPT: Trans > Torque Mangmt > Upshift > Torque Factor
The stock setting is 1.000

Thank you sir, ill be back around it next Thursday and will check these values and compare!
The trans shifts pretty quick considering tm is untouched on my current tune. I tried posting the video but apparently its in the wrong format for our forum

 

[LSxBakakos]

I've only dropped the numbers to about .75 ish and that seems to be pretty
quick shift for me. On the stock 2013 I did .900.. On the 2014 with built trans
I set them to .750
HPT: Trans > Torque Mangmt > Upshift > Torque Factor
The stock setting is 1.000

I ended up truing .800 1-4 and it seems a bit quicker/less firm in a way? But the roads are wet and adaptives are fresh, ear wise it definitley sounds to click shifts off quicker.

I did just about fully disable engine tm, hopefully this loads, my service also isn't the greatest at the moment

 

[SpareParts]

Try this also.
Under Torque Management-General-Speed Ctrl Terminate. Changed from Torque Ramp to Immediate.

 

[LSxBakakos]

Im already back home however ill do so hopefully this weekend. Just so that I understand what exactly does that change do? Also now its seeming to shift better. About the same firmness as before just quicker bur hey im all for improving. Hopefully I can test wot tomorrow lol

This was what wouldn't send earlier,fast torque(recovery after shift) absolutely seems improved too

 

[SpareParts]

From what i understand, With torque ramp timing is added back in slow. With it set to immediate it gets timing added faster.
Just normal driving i can't tell any difference really but i do notice it pulls harder sooner after a shift from about 3/4 throttle up.

 

[LSxBakakos]

From what i understand, With torque ramp timing is added back in slow. With it set to immediate it gets timing added faster.
Just normal driving i can't tell any difference really but i do notice it pulls harder sooner after a shift from about 3/4 throttle up.

Much appreciated sir. I thought that was just the fast torque exit but ill for sure give it a whirl when im near it next.

Im also curious on trans input max if I were to go to 750 ft lbs what that would do. That was higher end of stock thats been deemed safe, I jumped up 36. Originally that value was 664

After all this I do think im going to end up taking an HPTuners class. Other than scanners as a tech jve always been computer illiterate, its actually been an interesting journey with tuning and an addicting one. My ocd wants me to perfect literally everything and understand everything I can on what tables and their changes do etc

 

[SpareParts]

Computers are easy. HP Tuners is hard.
I have to watch videos and read the forum before i make changes.
I don't even know how i going to go about tuning for a new cam yet.

 

[LSxBakakos]

Ive always struggled with them lol, hp definitely is confusing especially with how so many things are hidden or intertwined. I did find some solid videos on tuning posted by hptuners themselves and a couple other guys for "burnout tunes" and gen 4 ls basics etc. If my tunes in my diesel weren't locked I'd like to look up/bring up efi live and see which format is easier. Then again im all for learning. Ill see if I can find the one guy whos a well known tuner, he had a basic cam tuning video from idle quality and so on. I know ill be in that same boat in time

 

[LSCALADE]

Thats interesting I will have to try the toruque factor from 1.0000 to 0.8 and see how it feels. Mine is set to speed ramp vs torque ramp, cant really tell a difference.

 

[SpareParts]

I watch 3 YouTubers for tuning. Probably a few more good ones i have not run across yet.
SilverSurfer77
Goat rope garage
Matt Sanford
I suppose i should be playing with my current engine tune so i can have a small clue on how to tune for the rebuilt engine with VVT cam going in next week.

 

[LSxBakakos]

Im 99% sure Sanford is who I used, ill check here shortly. Just went wot, feels odd. So hopefully I can post both clips. Still seems my 4th revision was best which makes zero sense

 

[LSxBakakos]

4th revision:

Latest with ecm/tcm tm reduction

Seems like it recovers slower after shifting unless thats just me/road surface difference. It does feel much more consistently firm on part throttle though

Also spareparts, ill see if I can find the cam tuning video

 

[LSxBakakos]

Update. I forgot to respond yesterday, the tuners you listed are the ones I was going to send lol. Also im under advanced viewing, asked chat gpt to locate it and apparently we may have a different OS? Its no where to be found for torque ramp to immediate

 

[dkad260]

Interesting thread as I have been waiting to mess with my vehicle...but hesitant on doing anything trans related. Definitely sounds like the shifts are quicker.

With that being said, does changing the TM put more wear on the clutches? I believe this would be different in say like a 4L60E when you add a vette servo and/or Sonnax super hold servo to "grab and hold" the band harder but TM would be more of ...not letting the "relaxation" of power delivery before the shift takes place. A bit above my paygrade but I would like to know what TM settings can do to clutches especially if they have alot of miles on them.

 

[LSxBakakos]

Interesting thread as I have been waiting to mess with my vehicle...but hesitant on doing anything trans related. Definitely sounds like the shifts are quicker.

With that being said, does changing the TM put more wear on the clutches? I believe this would be different in say like a 4L60E when you add a vette servo and/or Sonnax super hold servo to "grab and hold" the band harder but TM would be more of ...not letting the "relaxation" of power delivery before the shift takes place. A bit above my paygrade but I would like to know what TM settings can do to clutches especially if they have alot of miles on them.

Im no expert but I can speak off of this. My old "race truck" was a 371 ls, backed behind a fully built 60e. Greg Nader (lead engineer of sonnax) worked with my trans builder trying out new hard parts, smarttec input drum, smartshell sunshell etc etc. My old tuner brandon ended up leaving tow haul off 80% tm reduction and tow haul on "race" was 100% disabled

Shift timing/shift kits or band apply servos as you mention will help clutches live longer due to less slip, and less heat.

Engine torque management essentially is pulling timing under WOT off the initial hit and on gear changes to help the trans live longer

Transmission t/m is essentially softening that blow between gear changes to avoid drivetrain shock or abusing the trans. Essentially the risk of hard parts breaking goes up with less tm, but in theory clutch pack wear goes up with it unless you fine tune it

 

[dkad260]

From what i understand, With torque ramp timing is added back in slow. With it set to immediate it gets timing added faster.
Just normal driving i can't tell any difference really but i do notice it pulls harder sooner after a shift from about 3/4 throttle up.

This is something that I've always noticed after the 1-2 shift, it's like it's waiting for an invitation to get back under power...lol. Reducing this without any further clutch wear would be great but I can see it's likely more of a "blanket policy" to allow for varying conditiouns of "health" of any particular trans that may have a slower gear engagement.

Transmission t/m is essentially softening that blow between gear changes to avoid drivetrain shock or abusing the trans

Yeah, that's how I understand it. I guess just be wary of any TM you pull if the trans has a lot of miles on it. I would do it if I had a fresh rebuild or low miles but likely not with mine at 170K.