Search found 114 matches

by V8fan
Fri Jul 04, 2025 5:49 am
Forum: GM Can bus computers
Topic: 6L80
Replies: 5
Views: 414

Re: 6L80

ironduke wrote: Mon Jun 30, 2025 7:24 am IO prog can read and write them,
Expensive thing
Even clone from ali costs similar to HPT
by V8fan
Thu Jul 03, 2025 3:40 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: 7603 torque management inadequate work
Replies: 4
Views: 1278

Re: 7603 torque management inadequate work

Looks like PCM itself changing shift time after couple of shifts
Its not so bad like it was with HPT editing but at cold tranny 1-2 shift time much bigger than it was set in table
After warming up it looks like it close to desired in table but not in time - I need to move it more early
by V8fan
Tue Jul 01, 2025 4:50 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: 7603 torque management inadequate work
Replies: 4
Views: 1278

Re: 7603 torque management inadequate work

I took OEM file and make changes only in TUNER Pro After that compared them and no undefined position was found Upload it to PCM and looks like the problem is gone and I can use torque management without that lag Im almost happy Now I wanna change timing to make TM intervene more early because it li...
by V8fan
Mon Jun 30, 2025 3:45 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: Mother of all 7603 XDF files
Replies: 127
Views: 283961

Re: Mother of all 7603 XDF files

With that XDF I can't change VATS to 2 Only 0 and 1 can be used Is it a bug or it supposed to not let disable VATS ? Isn't it none and serial? 3rd is PWM which is P01 only? Pretty sure. maybe the each have the numbers mean a different feature. 0 -class 2 data (bcm) 1- PWM (passlock ?) 2- VATS disab...
by V8fan
Mon Jun 30, 2025 2:14 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: 4l60e upshift start and end ratios 7603
Replies: 0
Views: 120

4l60e upshift start and end ratios 7603

There are parameters that I think affected to torque management timing Upshift start ratio Upshift end ratio Anyone tried to change it ? In annotation "used to calibrate high stall converters" My goal is to make torque reduction ramp in and out earlier because now reduction jumps in when 2...
by V8fan
Mon Jun 30, 2025 1:04 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: Mother of all 7603 XDF files
Replies: 127
Views: 283961

Re: Mother of all 7603 XDF files

With that XDF I can't change VATS to 2
Only 0 and 1 can be used
Is it a bug or it supposed to not let disable VATS ?
by V8fan
Sun Jun 29, 2025 8:06 pm
Forum: GM Can bus computers
Topic: 6L80
Replies: 5
Views: 414

Re: 6L80

MPC001 wrote: Sun Jun 29, 2025 11:56 am
V8fan wrote: Sun Jun 29, 2025 3:05 am Anybody tried to open it ?
You mean pull the pan off the trans or get inside a T43?
I mean read -tune-write
by V8fan
Sun Jun 29, 2025 7:45 pm
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: P59 TBW
Replies: 2
Views: 176

Re: P59 TBW

TCC lock up works only at 4th because I cant make 3-4 smooth with locked (and with unlock when shift option it even worse cause it kicks -unlocks-locks) When you're downshifting with forward sprag worked as should its just slides when your engine speed not match veh speed With overrun mod (sprag alw...
by V8fan
Sun Jun 29, 2025 3:12 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: P59 TBW
Replies: 2
Views: 176

P59 TBW

Hello guys I have P59 TBC setup and interesting in TBW conversion IF it will bring me revving up automatically when AT downshifting Is there any algo in software to make it ? I have done overrun mod to my tranny(4l60e) and now overrun stays always on at 1-3 so now engine always connected to wheels a...
by V8fan
Sun Jun 29, 2025 3:05 am
Forum: GM Can bus computers
Topic: 6L80
Replies: 5
Views: 414

6L80

Anybody tried to open it ?