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Thread: 4L80E upgrades

  1. #1
    Join Date
    Jan 2009
    Location
    Rhode Island
    Posts
    241

    4L80E upgrades

    what are some good upgrades for my trany without puling it out and what patrs does every one use. I was thinking a shift kit from JET Performance but what do u guys think
    06 GMC 2500HD EC/SB 6.6 LBZ allison 6 speed, 4" MPRP turbo back, QS2 on the 70HP tune
    2000 chevy2500 RCLB 6.0
    4L80E,4.10s,aem intake,180 t stat,ported tb,descreened maf, true duals with high flow cats and 40s dumped, lt285/75r16 MTs,an a hypertech programer for now saving for a custom tune now its dead
    15.9 at 88 with mudd tires
    1973 chevy k10
    1989 chevy k1500 stepside

  2. #2
    Join Date
    Apr 2008
    Location
    Birmingham, AL
    Posts
    3,626
    transgo is what alot of people use.
    01 Silverado

  3. #3
    Join Date
    Jan 2009
    Location
    Rhode Island
    Posts
    241
    what shift kit is better from tansgo?
    06 GMC 2500HD EC/SB 6.6 LBZ allison 6 speed, 4" MPRP turbo back, QS2 on the 70HP tune
    2000 chevy2500 RCLB 6.0
    4L80E,4.10s,aem intake,180 t stat,ported tb,descreened maf, true duals with high flow cats and 40s dumped, lt285/75r16 MTs,an a hypertech programer for now saving for a custom tune now its dead
    15.9 at 88 with mudd tires
    1973 chevy k10
    1989 chevy k1500 stepside

  4. #4
    Join Date
    Feb 2007
    Location
    Spring, Texas
    Posts
    1,739
    Transgo HD2

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  5. #5
    Join Date
    Jan 2009
    Location
    Rhode Island
    Posts
    241
    i heard that some people dont noteice the shift kit do to some thing with the pcm?
    06 GMC 2500HD EC/SB 6.6 LBZ allison 6 speed, 4" MPRP turbo back, QS2 on the 70HP tune
    2000 chevy2500 RCLB 6.0
    4L80E,4.10s,aem intake,180 t stat,ported tb,descreened maf, true duals with high flow cats and 40s dumped, lt285/75r16 MTs,an a hypertech programer for now saving for a custom tune now its dead
    15.9 at 88 with mudd tires
    1973 chevy k10
    1989 chevy k1500 stepside

  6. #6
    Join Date
    Feb 2007
    Location
    Spring, Texas
    Posts
    1,739
    You can adjust line pressure, shift points...through the pcm but that's where your tuner or others on the site can tell you what those should be. It's definitely worth it to improve performance and extend the life of the trans.

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  7. #7
    Join Date
    Jan 2009
    Location
    Rhode Island
    Posts
    241
    ok thanks
    06 GMC 2500HD EC/SB 6.6 LBZ allison 6 speed, 4" MPRP turbo back, QS2 on the 70HP tune
    2000 chevy2500 RCLB 6.0
    4L80E,4.10s,aem intake,180 t stat,ported tb,descreened maf, true duals with high flow cats and 40s dumped, lt285/75r16 MTs,an a hypertech programer for now saving for a custom tune now its dead
    15.9 at 88 with mudd tires
    1973 chevy k10
    1989 chevy k1500 stepside

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