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Thread: shift kit and tuning a no no?

  1. #1
    Join Date
    Jan 2008
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    shift kit and tuning a no no?

    i was told by a local transmission builder that i shouldnt get a shift kit if im going toget a tune to adjust shift point and firmness? Whats this about?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
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    First of all, don't go to that trans builder.

    2ndly, Your trans will love the tune and shiftkit, they work great together.

    The trans doesn't have to be tuned if a shiftkit is installed, however, if you do tune it, your trans can take advantage of zero TM, lower shift times and all the other benefits that come along with a tune.

  3. #3
    Join Date
    May 2008
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    Crossett,Ar
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    +1 to what Allen said. If Im correct doesnt overtuning (which prob happens alot) a trans on a stock level risk damage?

    06 Intimidator SS- Tuned, CAI -DD
    03 Silverado- Last incarnation 13.6... RIP
    Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
    "Seize the day like you seize your noodle" - Shin Chan

  4. #4
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    Jan 2008
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    ok thanks thats what i was thinking too. imma go check out another local tranny shop and see if they seem qualified to build it. ill prolly do a servo and shift kit myself first then bring it to him to build it to handle my 6.0 i plan on building.

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  5. #5
    Join Date
    Jan 2008
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    Quote Originally Posted by Show&Go View Post
    +1 to what Allen said. If Im correct doesnt overtuning (which prob happens alot) a trans on a stock level risk damage?
    he did say that too. he told me you want it balanced between firm enough to not slip the clutches too much but not too firm to where its breaking parts

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  6. #6
    Join Date
    May 2009
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    ...just make sure the tuner knows you have a shift kit (along with any other mods)


    if he bumps up the shift pressure too much AND you have a shift kit, it could be a problem. But you can still adjust TM, shift points, etc.
    blown transmissions are about as useful as 97% of the guys on this forum

  7. #7
    Join Date
    May 2009
    Location
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    and...if you're in the market, check out FLT, i think they may even be running a special in the vendor section. They build these trannys all day long. Trust me, better to spend a lil more now and get guaranteed performance trans, then let some local guy TRY to build one.
    blown transmissions are about as useful as 97% of the guys on this forum

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