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what should my DFCO entry spark be on e85?

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Old Mar 15, 2011 | 01:38 PM
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what should my DFCO entry spark be on e85?

I think when entering DFCO it gets TOO lean, because when I go to press the gas again it jerks pretty bad sometimes producing a knock reading of 1 or 0.7, It should be smoother.

Here's a screen shot of my current spark advance.

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Old Mar 15, 2011 | 01:56 PM
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Oh lol this must be your question i think, turn dfco off. Also bika and a few others have experienced this. If your not gettign your comanded timing turn of m6 smoothing. Ive never had a issue, since i turned it off anyways, but check it out. Why are you running so low timing up top with e anyways.
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Old Mar 15, 2011 | 02:02 PM
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Originally Posted by Chevycobaltss3
Oh lol this must be your question i think, turn dfco off. Also bika and a few others have experienced this. If your not gettign your comanded timing turn of m6 smoothing. Ive never had a issue, since i turned it off anyways, but check it out. Why are you running so low timing up top with e anyways.
I'll check out turning that off. as far as timing I just wanted it a little safer. Thanks!
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Old Mar 15, 2011 | 02:03 PM
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From: Vine Grove Kentucky
oh ok. Yeah turning dfco off will make sre you get commanded timing and when you get off the throttle it wont be jerky and it wont pop as bad, its a issue with tuning.
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Old Mar 15, 2011 | 03:12 PM
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From: Phoenix
Originally Posted by moranjames89
I'll check out turning that off. as far as timing I just wanted it a little safer. Thanks!
I have seen 32 degrees of timing up top on a 2.5 and E, I think you will be fine bringing it to 25-27* but thats just me.
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Old Mar 15, 2011 | 03:16 PM
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Originally Posted by SCcobaltSS
I have seen 32 degrees of timing up top on a 2.5 and E, I think you will be fine bringing it to 25-27* but thats just me.
where at? my definition of up top is probably not the same as yours.
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Old Mar 15, 2011 | 03:31 PM
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RPM, upper RPM? That timing MAP looks familiar to one I have seen before. haha
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Old Mar 15, 2011 | 06:16 PM
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Originally Posted by SCcobaltSS
RPM, upper RPM? That timing MAP looks familiar to one I have seen before. haha
it's going around like herpes.
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Old Mar 15, 2011 | 07:24 PM
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Originally Posted by Chevycobaltss3
Oh lol this must be your question i think, turn dfco off. Also bika and a few others have experienced this. If your not gettign your comanded timing turn of m6 smoothing. Ive never had a issue, since i turned it off anyways, but check it out. Why are you running so low timing up top with e anyways.
I turned off spark smoothing and 0 knock! even in high gear at low rpms (1500rpms), I've had a problem with knock upon acceleration after a shift and this got rid of it COMPLETELY. Very, very happy.... unless of course I was getting knock because i had 90% boost in 2nd and 1st in torque management.
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Old Mar 16, 2011 | 01:40 PM
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Originally Posted by SCcobaltSS
RPM, upper RPM? That timing MAP looks familiar to one I have seen before. haha
She gets around..
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