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Thread: 411 swap stock trans no lock up TCC

  1. #1
    Potential Tuner
    Join Date
    Aug 2019
    Location
    Greenville, MI
    Posts
    6

    411 swap stock trans no lock up TCC

    0411 first read tune.hpt
    0411 first read tune shift firm_rpm drop.hpt

    First is the tune from pcmtuner.com which didn't lock up then. The tune had horrible slippage so the retune firmed up the shifting. Still no lockup. I read the repin form about the transmission wiring at the top of the page. Double checked that it was correct. Shifting from 1-2 is good, 2-3 is good, 3-4 it will not at WOT unless I let up a bit. Then it shifts. But doesn't even try to lockup the converter.

    I'm lost if you didn't know haha!
    Thanks everyone in advance.

    Everything is stock from factory, just did the 411 swap for tuning ease.

  2. #2
    Tuner
    Join Date
    Aug 2019
    Location
    Cleveland, TN
    Posts
    78
    brake light switch out of adjustment will keep converter from coming on. WOT shift points should match 100% numbers in part throttle shift. bluecat trans table generator works really good for setting up tables. may want to check it out.

  3. #3
    Tuner in Training
    Join Date
    Aug 2018
    Location
    Monroeville PA
    Posts
    33
    If it would help,look at my post in GM V8 Tuning - Engine, Gas (Gen 3) "when I put it in reverse" mine is set up to apply at 35mph in 4th. I can even post the original tune where it locked in 2nd gear and stayed locked,even at WOT.My present trans tune is set up for when I run at the track,shifts kinda hard.