1. The Turbo Forums - The discussion board for both hard core and beginner turbocharged vehicle enthusiasts. Covering everything from stock turbocharger cars, seriously fast drag racers, boats, motorcycles, and daily driver modified turbo cars and trucks.
    To start posting in our forums, and comment on articles and blogs please

    IF YOU ARE AN EXISTING MEMBER: You can retrieve your a password for your account here: click here.

MSD 6LS for ignition with BS3 controlling fuel?

Discussion in 'EFI Tuning Questions and Engine Management' started by turbo_scholar, Oct 4, 2013.

  1. turbo_scholar

    Joined:
    Jan 22, 2013
    Yeah, kinda dumb, but hey, the parts are laying there at my disposal so I figured what the heck. The BS3 harness I have is for an LT1 motor, and I already have the 6LS (6010 I think).

    From what I can recall I would need a new harness if I wanted to run my LS1 with the BS3, but I already have the 6LS setup. I'm thinking that the yellow tach wire for the 6LS would give the BS3 ecu the tach signal needed to do its job.

    Will this work?
     
    Last edited: Oct 4, 2013
    turbo_scholar, Oct 4, 2013
    #1

  2. TurboNova

    Joined:
    Jun 18, 2004
    The BS3 is looking for a specific RPM signal from a 4x pattern. You would get that from a crank trigger or distributor. It can also be set to TFI or Optispark that both provide it a signal also. It won't really work from just a tach wire. You could fit the front of the engine with a crank trigger to provide the BS3 a crank signal and do the spark with the MSD. It would work but not the optimal setup for tuning.

    For using BS3 with LS and without the MSD the ecu is different with two harnesses one for the coils and one for the engine.
     
    TurboNova, Oct 4, 2013
    #2

  3. turbo_scholar

    Joined:
    Jan 22, 2013
    Spoke with MSD and was told that the 6010 puts out a 4x square wave v8 tach signal. So does this mean it will work?
     
    Last edited: Oct 9, 2013
    turbo_scholar, Oct 9, 2013
    #3
Loading...
Similar Topics - MSD 6LS ignition Forum Date
MSD atomic 2 EFI blow through EFI Tuning Questions and Engine Management May 2, 2021
It's been awhile, trying to remember how to set the timing msd digital EFI Tuning Questions and Engine Management Jul 16, 2019
Msd grid, is it worth it to change to it from digital 6 EFI Tuning Questions and Engine Management Nov 25, 2018
Loading...
bridal-shoal