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Thread: 3>4 shift

  1. #1
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    3>4 shift

    my shift rpm vs shift for 3-4 is at 8192 & my shift speed vs shift for 3-4 is set at 75 mph.

    here's my problem, In D4, at WOT it shifts to 4th @ 4600rpm everytime, in other words, I can't take 3rd any farther rpm wise than this 4600rpm because it shifts on me. I want to stay in 3rd longer at WOT, but as of right now, the only way I can do that is if I'm in D3.
    05 2500HD 6.0L, Magnacharger Radix, Magnaflow CatBack, TransGo HD-2, Detroit Locker, Caltracs, Intro Pentia8 20x10\'s, BFG G-force KDW Tires 305/50-20\'s, M&H 33/15.50-16 Cheater Slicks, HPTuners V2.0.1

  2. #2
    Advanced Tuner
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    Re: 3>4 shift

    you need to raise your 3-4 shift speed in the shift speed VS %tps table
    There is no replacement for displacement?&&sure there is, its called a Blower!

  3. #3
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    Re: 3>4 shift

    Quote Originally Posted by rattle
    you need to raise your 3-4 shift speed in the shift speed VS %tps table
    thanks
    do both values have to be met to perform the shift or just one or the other?
    05 2500HD 6.0L, Magnacharger Radix, Magnaflow CatBack, TransGo HD-2, Detroit Locker, Caltracs, Intro Pentia8 20x10\'s, BFG G-force KDW Tires 305/50-20\'s, M&H 33/15.50-16 Cheater Slicks, HPTuners V2.0.1

  4. #4
    Senior Tuner
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    Re: 3>4 shift

    Both your rpm and speed table values need to be met under the WOT settings to work under WOT application. The part throttle settings, even the 100% in part throttle or below the WOT enbale setting, are not active for WOT gear shifts. It would be wise to have the WOT shift setting in part throttle match the actual WOT shift settings in the WOT tables.

  5. #5
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    Re: 3>4 shift

    Quote Originally Posted by 12secSS
    Both your rpm and speed table values need to be met under the WOT settings to work under WOT application. The part throttle settings, even the 100% in part throttle or below the WOT enbale setting, are not active for WOT gear shifts. It would be wise to have the WOT shift setting in part throttle match the actual WOT shift settings in the WOT tables.
    thanks! That sounds completely logical

    I'm on it
    05 2500HD 6.0L, Magnacharger Radix, Magnaflow CatBack, TransGo HD-2, Detroit Locker, Caltracs, Intro Pentia8 20x10\'s, BFG G-force KDW Tires 305/50-20\'s, M&H 33/15.50-16 Cheater Slicks, HPTuners V2.0.1