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Thread: dbw lq4/t56 magnum swap in 93 lightning 2 bar custom os question

  1. #1
    New Member
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    May 2011
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    Default dbw lq4/t56 magnum swap in 93 lightning 2 bar custom os question

    I've got a 93 lightning with a 6.0/t56 magnum and a vortech blower running the 2 bar map sensor os for an 03 computer
    my tuner has not been able to find a manual trans os that is compatible with the 2 bar map os so he basically tuned the
    auto os to where ot will work but I won't be able to use my cruise the way it setup now. Does anyone know of a tune file
    for an 03 cumputer that has a manual? I've looked everywhere and have not been able to find one. I was thinking a 4.8/5 speed
    might work but I can't find one for that either. Thank you in advance for any help

  2. #2
    Member
    Join Date
    Feb 2008
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    90

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    Why not try the 12212156 file for a dbw corvette with manual trans ( http://www.tunefiledepot.com/calibra...(12212156).tun ) for a good initial manual trans file then its super easy to do the COS5 upgrade.
    LQ4, Pro-Flo, heads, Stock48 cam'd, twin TO4E 2001 C5 830rwhp/905rwtq
    2001 GMC RCSB pt88/5.3/4l80e/14 bolt 11.34@123.2 best pass so far with a 1,82 60' @ 13lbs boost

  3. #3
    Joe (Moderator) joecar's Avatar
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    Apr 2003
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    +1 on 12212156 as joey said.

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