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Thread: $0E Main spark tables and their relationship to initial advance

  1. #1
    Electronic Ignition!
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    Nov 2014
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    $0E Main spark tables and their relationship to initial advance

    I'm in the process of tuning my Cadillac motor running an '6395 with a BHDF base and $0E. In the spark timing tables are the numbers actual timing or are they added to initial timing? I already am aware of the main spark bias that the XDF takes into account.
    1995 K1500, Cadillac 500 TBI with 4L80E swap. In progress.

  2. #2
    Fuel Injected!
    Join Date
    Aug 2012
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    331
    If you have set your bin to what you have for initial and done the correction in the xdf it should be showing what the timing actually is. Just for your info on my mildly mod 454 I tried various initial advances and ended up using the stock 4 degrees. That is stock for the bin. As soon as it fires it switches to timing table anyhow
    6395, BHDF, 7.4 BBC lightly modded now 6395 BMHM back to BHDF

  3. #3
    Electronic Ignition!
    Join Date
    Nov 2014
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    Just a note for any new people who stumble onto this thread, make sure you set up the values in your datastream definition to also take into account you initial advance otherwise your data logs and on screen display will not take initial into account. In my case it was 12 degrees below the actual value. The tables were accurate however.
    1995 K1500, Cadillac 500 TBI with 4L80E swap. In progress.

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