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Thread: Fuel or Spark first?

  1. #1
    Tuner Nithros's Avatar
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    Fuel or Spark first?

    In general and on a stock LS6 with headers and CAI, should you tune for maximum spark advance first and then AFR or the reverse?

  2. #2
    Tuner
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    May 2004
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    Re: Fuel or Spark first?

    Get the AFR nailed down first, then work on spark.
    98 M6 TA, mods: tsp torquer(233/233 .589 112), Patriot golds, ls6 oil pump, ls6 intake, tsp lid, pacesetter LT\'s and ORY, magnaflow, fra, HPTUNER!

  3. #3
    Senior Tuner S2H's Avatar
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    Schexnayder Racing - Arnaudville LA
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    Re: Fuel or Spark first?

    then go back and redo AFR..cause when you change spark you change the burn rate and your AFR changes


    you realy kind of have to do both at the same time


    not enough fuel...you get knock...too much spark your fueling changes
    as you can see this is why you have to do both at the samne time
    -Scott -

  4. #4
    Tuner Nithros's Avatar
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    Re: Fuel or Spark first?

    Thanks luv2spd and soundengineer for the information.

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