2004-2006 V8 tuning update - Page 2
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Cadillac STS Forum - 2005 through 2012 Discussion, 2004-2006 V8 tuning update in Past Cadillac Vehicle Discussion; Originally Posted by orange57 madtuner, would it be possible to reprogram the computers for a manual transmission? That should not ...
  1. #16
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    Re: 2004-2006 V8 tuning update

    Quote Originally Posted by orange57 View Post
    madtuner,

    would it be possible to reprogram the computers for a manual transmission?
    That should not be an issue, though I would recommend going with the cable option in that case, since additional tweaks may be needed after the initial calibration.


  2. #17
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    Re: 2004-2006 V8 tuning update

    madtuner,

    With your better focused insight into the moding, do you know what M/T's may work? While the 5speed A/T is a good trans, I really like rowing my own gears. If they would have offered the car with a manual, I would have found one with that option. Ideally a 6speed manual would be awesome...although I think the new Corvette is going to have a 7 speed

  3. #18
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    Re: 2004-2006 V8 tuning update

    Quote Originally Posted by orange57 View Post
    madtuner,

    With your better focused insight into the moding, do you know what M/T's may work? While the 5speed A/T is a good trans, I really like rowing my own gears. If they would have offered the car with a manual, I would have found one with that option. Ideally a 6speed manual would be awesome...although I think the new Corvette is going to have a 7 speed
    You will likely need a number of custom-built parts with any manual conversion. I am not aware of any existing LH2 6-speed conversions, but 4L60E kits have been offered in the past for Northstars. Even with a bellhousing adapter, you would still need to find a suitable clutch and most likely have the input shaft modified.

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  5. #19
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    Re: 2004-2006 V8 tuning update

    I'm guessing you are correct that there are no LH2 6speed RWD's. CHR Fab makes a bell housing to adapt a Northstar to a manual, but I'm not sure if that is for the LH2 or not. I wonder how different the bell housing is on the 5L50E that was used in the CTS as well. Since the CTS was offered with the same A/T and a manual variant, I wonder if the bolt hole pattern is the same. I recall reading that the FWD Northstar engines had a unique bolt hole pattern for the bell housing, not sure if they carried that over to the RWD.

  6. #20
    Charles Warren's Avatar
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    Re: 2004-2006 V8 tuning update

    the 07+ v8s were 6 speed auto

  7. #21
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    I think orange is looking for manual.

  8. #22
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    Yep, I want a manual CHRF said they have bellnhousings and clutch kits, they would just need to know what trans is being used. More of a pipe dream right now. I don't see having the time to take the car off the road for that duration in the near future to accommodate the swap/modifications.

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