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Anyone running a 6L80??

Discussion in 'The Hokey Ass Message Board' started by Wild Turkey, Mar 6, 2012.

  1. Wild Turkey
    Joined: Oct 17, 2005
    Posts: 903

    Wild Turkey
    Member

    (searched and no recent threads) (I've got two aftermarket-knees that aren't clutch friendly so let's not go there:()

    Just wondering how this transmission is shaping up -- I want to put it behind an engine with lots of torque and a narrow powerband.

    Any problems with it???
     
  2. NuckinFutz
    Joined: Jun 26, 2011
    Posts: 170

    NuckinFutz
    Member
    from GA

    It shifts really wierd. It shifts up and down alot. I have found it to be a big PITA when driving in the mtn regions. IMO, I would use the 4L80E. Alot more steady of a trans for cruising.
     
  3. JD Miller
    Joined: Nov 12, 2011
    Posts: 2,250

    JD Miller
    Member

    could be a bad TPS
     
  4. olkarz
    Joined: Aug 7, 2010
    Posts: 114

    olkarz
    Member

    The Avalanche's with the LS6 and the Corvette/Camaros with the LS3s uses them...so that depends on how much torque your motor has??? It's rated by GM @ 430ft/lbs of engine torque...which is great for those of us who don't have blown big blocks or engines built for drag racing.
     

  5. JEM
    Joined: Feb 6, 2007
    Posts: 1,040

    JEM
    Member

    Bear in mind that with both these transmissions how they behave is primarily a function of whoever sets up the calibration in the electronics.

    One of my primary gripes with late-model electronically-controlled transmissions in US-market production vehicles is that they're often calibrated to resist downshifting in order to ensure the car stays in as high a gear as possible in the EPA's CAFE mileage-dyno testing.

    I *want* the transmission to downshift cleanly and quickly when I push my foot down, I don't want it to force me to stomp the pedal through the floor.
     
  6. JEM
    Joined: Feb 6, 2007
    Posts: 1,040

    JEM
    Member

    Well, the CTS-V does a fair bit better than that but it gets the 6L90 flavor...
     
  7. NuckinFutz
    Joined: Jun 26, 2011
    Posts: 170

    NuckinFutz
    Member
    from GA

    It better not be! Its a brand new truck! I rather drive my 06.
     
  8. Weasel
    Joined: Dec 30, 2007
    Posts: 6,698

    Weasel
    Member

    Kinda O/T for the HAMB isn't it? Having said that I have a 6L80 in my 2011 truck. It does indeed shift up and down a lot and quite frankly I find it a PITA. I much prefer the 4L80 in my last truck. As far as converting it for use in a non original application I have only found one company that deals with it for standalone use: Speartech in Indiana - www.speartech.com so if you really must. As for me I'm sticking with my trusty traditional;) 700 R4 and 200 4R....
     

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