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Thread: Idle starting point

  1. 06-09-2021 #1
    Mood1977
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    Idle starting point

    Ok I?m getting close to cranking a 408 on a stock 5.3 pcm. It seems to be common practice to add 2 gm/sec to base airflow and 4 degrees timing at idle. I noticed that the idle spark tables are close but not exactly the same. Is there any reason not to make the in drive and in park tables Match? And then make the idle area of the main spark match them as well?
    Last edited by Mood1977; 06-10-2021 at 06:13 AM.
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  2. 06-10-2021 #2
    doorev800
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    You can make all 3 tables the same, that is actually recommended. From 400 to 1200 and to .25g/sec or so can all be your target idle spark in all tables. Worked fine for me
    2010 /2SS/Long Tubes/ Magnaflow axle back/LSA Conversion/ 2 bar OS running / Stock Blower Pulley...for now
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  3. 06-10-2021 #3
    Mood1977
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    Quote Originally Posted by doorev800 View Post
    You can make all 3 tables the same, that is actually recommended. From 400 to 1200 and to .25g/sec or so can all be your target idle spark in all tables. Worked fine for me
    Thank you
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