2016 6.4 and 8spd swap

New Hemi Engine Swap

  1. Darius

    Darius FBBO Gold Member FBBO Gold Member

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    I have not seen the NAG1 mentioned here. That 727 would be great but you are not going to realize the fuel economy with it that you would with the NAG1. This transmission has been said to handle 1000hp! Russell Drake at Sound german automotive .com has this transmission dialed in for programming. Ask Chris at Hotwire about this possibility. If you are resigned to modifying the tunnel , you might as well check into it at least. Sure works great in my GTX with the 5.7 and I am getting 18mpg with it!
     
  2. 5.7 hemi

    5.7 hemi FBBO Gold Member FBBO Gold Member

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    The nag1 is a great trans, so if your gonna do tunnel mods, do the nag1!
     
  3. coronet68mx

    coronet68mx FBBO Gold Member FBBO Gold Member

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    This is NOT MY INFORMATION BELONGS TO THIS GUY ROLLING THUNDER HE USE A 2005 PCM WICH HE SEND TO REPROGRAM AND HE MODIFIED A 2005 HEMI RAM WIRE HARNESS it is necessary to understand how to build a fuse box and how to connect this fuses to the respective relays and difference between volts amps and how to connect this between them
    New Gen Hemi stand alone harness.....
    Because so many people ask.... I'm giving a cliffnotes version of what needs to be done to make your harness applicable to an older muscle car... . this will work for a 5.7L or a 6.1L Hemi - I'm 99% sure a 6.4L as well.... no first hand experience though....

    Cliffnotes.... You'll only be using the Black, Orange, and White connectors for this one.... if you're using the mopar trans then you'll use the green connector and be asking for a lot of ass pain going with it.

    BLACK CONNECTOR:
    Pin 29: Wire to terminal 86 / 30 on Auto Shut Down Relay (ASD)
    Pin 30: Wire to pin 85 on a Starter relay

    ORANGE CONNECTOR:
    Pin 8: NOT USED
    Pin 22: NOT USED

    WHITE CONNECTOR:
    Pin 3: ASD Relay terminal 85
    Pin 8: NOT USED
    Pin 11: A/C Relay terminal 85
    Pin 14: NOT USED
    Pin 19: ASD Relay terminal 87
    Pin 20: NOT USED
    Pin 23: NOT USED
    Pin 28: ASD Relay terminal 87
    Pin 29: NOT USED
    Pin 35: NOT USED
    Pin 37: Fuel Pump relay terminal 86
    Pin 38: Starter Relay terminal 86


    This should be getting 99% of you guys on the road.... If you are using the NAG1 or truck trans - just use the green connector and plus into the trans.... any other specific questions PM me and I'll do my best to answer while I'm in the Middle East.

    PS - You're welcome.
     
  4. coronet68mx

    coronet68mx FBBO Gold Member FBBO Gold Member

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    Also check on FABO this guys have a a lot of info on this site
     
  5. rsqrdave

    rsqrdave FBBO Gold Member FBBO Gold Member

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    I am planning on cutting the tunnel and cross member as needed. The making sure I am getting the right parts that will work is the issue. The 545RFE was the suggested transmission option (looking at the ATS model). The NAG1 is also an option. I'm still researching and learning these new electronic shift transmissions with the goal being keeping the cab as original as possible with the exception of the dash (already have a set of Autometer gauges installed). Also with the NAG1 I would need a donor car or at least all the missing shifter components and computers.
     
    Last edited: Oct 16, 2016
  6. rsqrdave

    rsqrdave FBBO Gold Member FBBO Gold Member

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  7. mmissile

    mmissile Well-Known Member

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    Been there done that. Finishing up the brakes on my `cuda.....then gonna drive it around the neighborhood.
     
  8. nstyle73

    nstyle73 Well-Known Member

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    I love power, don't get me wrong, but on a new motor, it might be worthwhile to take a test drive in a 6.4 challenger and see how the power is before opening it up to put Pistons in for a blower. A few bolt ons and a tune and you will have more power than traction. I thought I wanted a blower and for my 6.1 but with a little work, it is pretty stupid for a street car
     
  9. Waskier

    Waskier New Member

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    I too have a 6.4L w/8 speed and I want to run the 8HP70
     
  10. soundcontrol

    soundcontrol Well-Known Member

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    I think its just a matter of time before someone can support the 8-speed tranny. Ask Hotwire, maybe they are working on it.... I'm gonna use the NAG1 for my car though. The 545RFE seems so big and bulky.
     
  11. rsqrdave

    rsqrdave FBBO Gold Member FBBO Gold Member

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    The NAG1 seems like a good option however I think there's a lot more parts I need for that conversion than I would for the 545RFE. Since I will have both trans I may build the tunnel for the 8HP70 making sure the 545RFE still fits. In looking at them side by side there a few differences.
     
  12. Hemi Rebel

    Hemi Rebel Well-Known Member

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    Last edited: Jan 29, 2017
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