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Thread: Help with timing

  1. 04-03-2013 #1
    erics_02_z06
    erics_02_z06 is offline
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    Jun 2010
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    Help with timing

    Trying to go back to pump gas (91) from E85. I've changed the stoich value to 14.7 and put the PE AFR's to 12.7 (non boost) and 11.5 ( boosted). Now I'm just worried about timing. I know E85 tunes typically run more timing. I unfortunately don't have anything to compare this tune to. Here is my spark table, can anyone recommend some changes to make sure I'm in a safe zone to start my logging?
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  2. 04-03-2013 #2
    erics_02_z06
    erics_02_z06 is offline
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    forgot to mention it looks like this tune isn't correcting for higher g/cyl values. The afr correction table is set to 0
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  3. 04-03-2013 #3
    carlrx7
    carlrx7 is offline
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    I'd start by taking away 3 degrees from the whole table and see how it likes it. that is the main differences between my 93 and e85 tables, other mods are to the iat table more aggessive on 93
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