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Thread: 454 / 700r4

  1. #1
    Fuel Injected!
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    454 / 700r4

    Since I am finally getting around to loosing the add on B&M lockup control on my S10 Blazer , I would like to control lockup of the 700R4 with the PCM.

    I have been running the '7427 for a few years in the truck with the BJKW .bin but have used the add on control to handle the lockup and never tried it with the PCM.

    Lots of questions:

    Using that PCM and that .bin (which is a 454/4L80E .bin) , is there a easy way to use just a TCC control for my 700R4 so I can loose the add on B&M unit?

    What flags and / or settings will I need to change and where would the TCC output control pin out ? Where would the lockup settings be in Tunerpro if this is possible?

    Will I need to wire a DRAC for a TCC only ? Or will the 2000ppm input that I have been using be acceptable ?

    Thanks for the help

    TOM
    1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
    2006 Forest river-Sierra 37' 5th wheel
    1999 Astro Van, L31 Vortec , 4x4 conversion
    1994 Pontiac Sunbird "Work ride"
    1993 K-3500 "Ex-diesel" 454/4L80E - '7427
    1992 454SS "Eh Stock" , Blower & '7427 swap .
    1992 S-10 434 SBC/Tremec - '7427
    1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
    1980 Z-28 454/700R4
    1977 Olds 98 Regency 403/700R4

  2. #2
    Fuel Injected! jameslleary's Avatar
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    From what I have heard, you can just zero out the individual shift points, and just keep the TCC lockup speed in the bin., and it should work.

  3. #3
    Fuel Injected! gregs78cam's Avatar
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    If you are running $0E there is a flag at $400F, bit 6, that is for "TCC only", set that one.
    Also make sure $400F bit 7 "Manual Transmission" is not set.
    I would think that the 2K input should work. The 40PPR from the DRAC in a 4L80E app in used to control the shift points.
    You really don't need to zero out any of the shift point data, when you select "TCC only" it should just ignore them.
    If you haven't yet, grab 93V8S10's TP5 files and read parameter comments, they will explain it.
    Last edited by gregs78cam; 05-03-2012 at 07:37 AM.
    1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
    1981 Camaro Z-28 Clone, T-Tops, 350/TH350
    1981 Camaro Berlinetta, V-6, 3spd
    1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s

  4. #4
    Vintage Methane Ejector
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    There is a section of code just for the 700R4. Just set the flags as necessary (see xdf), and set the 700R4 parameters as needed.

    Use E11 for the TCC solenoid and power from the brake switch should be wired to E13.

    The 2000ppm input will be fine.

  5. #5
    Fuel Injected!
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    Thank you all , sounds good

    TOM
    1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
    2006 Forest river-Sierra 37' 5th wheel
    1999 Astro Van, L31 Vortec , 4x4 conversion
    1994 Pontiac Sunbird "Work ride"
    1993 K-3500 "Ex-diesel" 454/4L80E - '7427
    1992 454SS "Eh Stock" , Blower & '7427 swap .
    1992 S-10 434 SBC/Tremec - '7427
    1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
    1980 Z-28 454/700R4
    1977 Olds 98 Regency 403/700R4

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