Built 6l90e transmission?
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2009-2014 Cadillac CTS-V General Discussion Discussion, Built 6l90e transmission? in Cadillac CTS-V Series Forum - 2009-2014; Who if anyone has had there tranny built? How is it holding up and who built it? My trans is ...
  1. #1
    600+ CTS-V is offline Cadillac Owners Fanatic
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    Built 6l90e transmission?

    Who if anyone has had there tranny built? How is it holding up and who built it? My trans is slippling pretty bad and it's time to build? Who should I use??

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    Gary Wells is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    Excuse my lameness, but aren't these 6190L trannies?

  4. #3
    LFTW8S is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    Quote Originally Posted by 600+ CTS-V View Post
    Who if anyone has had there tranny built? How is it holding up and who built it? My trans is slippling pretty bad and it's time to build? Who should I use??
    I assume from your name that your car is putting out 600hp. Is the added HP making your tranny slip? How is the car acting when the trany slips. What mods hav you done to the car?

    Thanks

  5. #4
    Razorecko is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    I would say most importantly how many times have you changed the trans fluid ? , ie checked when vehicle was new ?

  6. #5
    600+ CTS-V is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    Quote Originally Posted by LFTW8S View Post
    I assume from your name that your car is putting out 600hp. Is the added HP making your tranny slip? How is the car acting when the trany slips. What mods hav you done to the car?

    Thanks
    Yes it puts down about 620 to the wheels but has been putting down that power for a while now and the tranny is slipping. To answer your question it acts like a slipping tranny in between shifts. It also has a tranny tune from wait4me everything else is stock.

  7. #6
    600+ CTS-V is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    Quote Originally Posted by Razorecko View Post
    I would say most importantly how many times have you changed the trans fluid ? , ie checked when vehicle was new ?
    I haven't changed the fluid for about 3000 miles. I checked the fluid.

    So who knows a good place to get one built that has one holding up?

  8. #7
    baabootoo is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    You might want to check the Pontiac G8 boards. They had a LOT of guys adding superchargers and they use the same trans (6L80E), only weaker from the factory. They had a few places that upgraded them, but I can't remember the names.

  9. #8
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    Karch is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    I know Circle-D out of Houston has been doing some work with the 6L80e's. Perhaps they have some insight to the -90e's as well.

  10. #9
    CadV is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    You running a stronger torque converter or stock? If you running stock that is probably why it didn't last long.

  11. #10
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    Torxila is offline Cadillac Owners Enthusiast
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    Re: Built 6l90e transmission?

    Only one place to go

    RPM Transmission, in Indiana, Rodney is the owner.
    http://www.rpmtransmissions.com/

    1000rwhp +, F-body and 'vettes guys can't be wrong.

    George


    ps I thought it is a 6L90E?

  12. #11
    wait4me's Avatar
    wait4me is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    What are your exact engine mods? Did we do the build? How many miles are on your car?

  13. #12
    Gary Wells is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    Quote Originally Posted by Gary Wells View Post
    Excuse my lameness, but aren't these 6190L trannies?
    Oops, my bad. I thought that thewe were 6L90's, I did not know that there was an "E" designation attached.

  14. #13
    CadV is offline Cadillac Owners Connoisseur
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    Re: Built 6l90e transmission?

    Quote Originally Posted by 600+ CTS-V View Post
    Who if anyone has had there tranny built? How is it holding up and who built it? My trans is slippling pretty bad and it's time to build? Who should I use??
    Please let us know what you found out. I am doing 670ish to the wheels and I am wondering how much the tranny can take.

  15. #14
    600+ CTS-V is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    Quote Originally Posted by wait4me View Post
    What are your exact engine mods? Did we do the build? How many miles are on your car?
    Heads and cam kook headers and exhaust back to the stock mufflers. Ati underdrive and a 2.55 pulley on the top and ls3 throttle body. Your heat exchanger and trans tune and lpe cold air kit. Car last week ran a 11.07@127 on 20inch street tire. I talked to you about it. I took it to the track friday and the trans was done. The car has about 12k for miles but the trans only about 2500 miles.
    This car has already had 2 rpm transmissions with a yank torque converter and they both burnt the clutches real fast. I'm not saying that it was rpm's fault I know the build a good trans so who knows? I bought this car used off a friend of mine after he gave up on it. I'm a little more patient.

  16. #15
    600+ CTS-V is offline Cadillac Owners Fanatic
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    Re: Built 6l90e transmission?

    Quote Originally Posted by wait4me View Post
    What are your exact engine mods? Did we do the build? How many miles are on your car?
    Tried to ad a reply to your questions and it said it had to b reviewed by a moderator?

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