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kill torque management

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Old Mar 24, 2004 | 11:06 PM
  #1  
rattle's Avatar
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kill torque management

not sure if i should be in this thread or the tbi thread but hear goes any way. working on a 0D tbi calibration, it has torque management, all i want to do is the kill it . Now in the code source i found
; ADVANCE LIMITS
;---------------------------------------------
L4145 FDB 0119 ; 42 Deg, MAX SPARK ADVANCE
;
L4147: FDB 65508 ; 10.0 Deg, MAX RETARD
L4149: FDB 65514 ; 7.4 Deg, MAX RETARD DURING FUEL C/O
L414B: FDB 65514 ; 7.4 Deg, MAX RETARD DURING TQ MANAGMENT FUEL C/O

so i have two questions
1-What does FDB stand for?
2-how do i determine the calculation to convert 65514 to 7.4 degrees?

ok i lied, 3 questions.

3-how to i kill the blasted torque managment, i figure just set max retard during TQ to 0 degree should do wont it? but how?
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Old Mar 25, 2004 | 12:00 AM
  #2  
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Dont know squat about torque managment but the other things I can help with.

FDB stands for form double byte. Basically the compiler will write the number after the FDB pneumonic after it as two bytes.

The spark retards are actually signed double bytes. Off of the top of my head, you represent them as binary and then flip b0-b15 bits. After that, you multiply them by (90/255) and you get the value in degrees of SA
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Old Mar 25, 2004 | 12:42 AM
  #3  
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ok, so following that method, to make the torqe management timing retard 0 degree i can just enter 0001 hex into address 414B, then do checksum and should be all good. Right??

I would prefer to use tunercat definition editor but it does not seem to support this calculation
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Old Mar 25, 2004 | 01:03 AM
  #4  
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Check the '2's complement' box and itll do the calc for you. I think it might differ a little bit since its twos comp. but thats no biggie. My binary math skillz arnt too good so I might eb wrong about that.
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Old Mar 25, 2004 | 06:16 AM
  #5  
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
Re: kill torque management

Originally posted by rattle
working on a 0D tbi calibration, it has torque management, all i want to do is the kill it.
If you want to firm up the shifting, you can do that, and about anything else you want to do shift wise. Killing the shift management might not be the best answer for increasing performance, IMB. While some other manufacturers S/M is really bad, I wouldn't say that about GMs.

Might try looking at one of the heavy duty application .bins, if you haven't already, and look at the tranny stuff.
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Old Mar 25, 2004 | 03:59 PM
  #6  
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my main reason for wanting to kill the torque management spark retard is to get rid of the nasty lauch bog, i just want the timing to fall onto the values i have in the main open throttle spark table and not be modified by torque management spark retard.
Plan is to just set max torque management spark retard to 0 degree
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Old Mar 25, 2004 | 06:05 PM
  #7  
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
Originally posted by rattle
my main reason for wanting to kill the torque management spark retard is to get rid of the nasty lauch bog, i just want the timing to fall onto the values i have in the main open throttle spark table and not be modified by torque management spark retard.
Plan is to just set max torque management spark retard to 0 degree

Looking at what you quoted, it looks like that timing retard is during fuel cut off.

Do you have a really good data log showing what your trying cure?.

Torque management in some neighborhoods, is about killing some engine power during the gear change.

Some code has what's called Abuse Mode, and the prevents overloading the drivetrain in some situations.
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Old Mar 28, 2004 | 01:43 PM
  #8  
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From: va.beach.va/usa
Car: 87 IROC (low 12's)
Engine: 400 sbc .040 over
Transmission: 700r mod
ttt
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Old Mar 28, 2004 | 01:50 PM
  #9  
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From: va.beach.va/usa
Car: 87 IROC (low 12's)
Engine: 400 sbc .040 over
Transmission: 700r mod
I bought this back to the top because I was not aware of t.m. existing in 3rd gen cars.It is in my c5(98) and works well removing it(t.m.). It does just as Grumpy says lowers torque between but is a little more involved than even that. Anyways.,
where would it be in tuner cat or is it more involved than the program itself?
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