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Thread: Carbureted LT1 Runs on LS1 PCM

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  1. #1
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    Default Carbureted LT1 Runs on LS1 PCM

    Today we tested the LS1 PCM as an ignition controller with a carbureted LT1 engine. We turned the key for the first time today; the engine started on the first crank. Throttle response is excellent. We're looking forward to the installation in a vehicle and 4L60E (or 4L80E) transmission control.

    Video: Click to view 10MB video

    Tuned with EFILive. 2002 Camaro LS1 calibration.





    Crank and cam signal components.



    Last edited by S10Wildside; December 5th, 2009 at 02:22 PM.
    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

  2. #2
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    I have to say, your conversion kit is simply awesome. I sort of wish I had an LT1 to convert over, but then I go into the garage and take the SS for a drive...6.0 liters of pure GM small block fury with AWD just cant be beat.

    Now a Syclone converted would be cool...
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
    Lifetime Member GMPX's Avatar
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    Did you go with a carb due to certain racing classes not allowing EFI?
    I no longer monitor the forum, please either post your question or create a support ticket.

  4. #4
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    Quote Originally Posted by GMPX View Post
    Did you go with a carb due to certain racing classes not allowing EFI?
    I think a carburetor is blasphemous! (to EFI) But to satisify curiousity and to show that the LS1 PCM is not just a fuel management system, we wanted to get a carbureted engine running with the LS1 PCM.

    - an accurate crank/ignition signal
    - tuning to 8,000 rpm
    - IAT input (eliminate hot/cold starting issues)
    - CTS input (eliminate hot/cold starting issues)
    - 4L60E/4L80E control
    - tach output
    - VSS output
    - up to two knock sensors
    - and software that allows real-time tuning, data acquisition, data tracing, etc (thank you EFILive)

    It's a marvelous ignition controller! As far as I know, the aftermarket has nothing on the LS1 PCM as an ignition controller.
    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

  5. #5
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    Default carbureted ls1 1998 camaro ss pcm 4l60e trans

    Quote Originally Posted by S10Wildside View Post
    I think a carburetor is blasphemous! (to EFI) But to satisify curiousity and to show that the LS1 PCM is not just a fuel management system, we wanted to get a carbureted engine running with the LS1 PCM.

    - an accurate crank/ignition signal
    - tuning to 8,000 rpm
    - IAT input (eliminate hot/cold starting issues)
    - CTS input (eliminate hot/cold starting issues)
    - 4L60E/4L80E control
    - tach output
    - VSS output
    - up to two knock sensors
    - and software that allows real-time tuning, data acquisition, data tracing, etc (thank you EFILive)

    It's a marvelous ignition controller! As far as I know, the aftermarket has nothing on the LS1 PCM as an ignition controller.



    what do i need to do for a carbureted ls1, 1998 camaro ss 5.7 ecu, 4160e trans. mild cam.3 bar map. running no maf senor conversion.

    what senors do i need to keep.
    what tuning i need to do.

    email me at perri00c@gmail.com

  6. #6
    Joe (Moderator) joecar's Avatar
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    Good job... looks like you can get the LS1 PCM to run just about anything.

  7. #7
    Lifetime Member Mr. P.'s Avatar
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    Just Awesome! Buh-Bye Optispark!

    Mr. P.

  8. #8
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    That's awesome.

    Another application that comes to mind is a Fox body LS3, carbed, 4L60E, with LS1 PCM to control the trans and ignition. That would be cool.

    BTW how did you figure you how to mount the TP sensor on the carb?

  9. #9
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    Quote Originally Posted by Eric Fischer View Post
    how did you figure you how to mount the TP sensor on the carb?
    It's just an 80s GM TPS sensor with a cable to pull it. Same idea as what you get from TCI when installing one of their transmission controllers.

  10. #10
    Lifetime Member Doc's Avatar
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    As having been involved with the tuning and installation of 3 of these conversions using EFI Connection's kit on customer's cars thru my shop I can attest to the quality of the componets contained there in.

    An execellent alternative for the LTx crowd. Great job Mike and Co.

    Doc

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    www.efialchemy.com
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