Input on X-1 Logs (Spark Chart) Question

Discussion in 'F/I Mods & Tuning' started by MXXN, Nov 8, 2015.

  1. MXXN

    MXXN New Member

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    I've been off the board for quiet away. My truck had been down and life had gotten in the way so it was in storage and has recently been resurrected. Its been awhile since working with X-tune and I am trying to get back up to speed.

    I would like to have a better grasp on reading my ign. timing charts. I haven't had a solid time to get with a buddy to do any good logging sessions. I managed a quick 3rd gear pull and pulled a sample. The sparkOEM pulled timing in what seamed to be a very gradual manner then advanced it abruptly. I may be mis-reading the chart but to pull down timing to 8.8 then shoot up to 22 and to cross below the X1spark numbers, it just wasn't what I was expecting to see. Normally knock pulls timing out instantly and at a sharp drop?

    Again I apologize if this is covered somewhere. I searched with no real result. I remembered the HOW TO's and revisited the part 1 and 2 on logging with the X-1. I am just trying to get both myself and the truck back up to speed.

    TIA on any input.

    [​IMG]

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  2. Gadget

    Gadget Well-Known Member

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    Very aggressive timing map you have there. Advancing the spark timing in boost?
     
  3. MXXN

    MXXN New Member

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    This is the map that you provided with the X-1 when you sent it to me. I haven't touched the ignition timing map at all?

    Sounds like my concerns are warranted and I need to make changes. Do you have recommendations?
     
  4. SgtBadA

    SgtBadA Active Member

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    That yellow dip in the chart looks like a capacitor does when it discharges. Maybe that's the coil charging and firing? I'm new when it comes to stuff like this
     
  5. Gadget

    Gadget Well-Known Member

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    That might be a 100 octane map. I suggest you go back to the original map.
     
  6. MXXN

    MXXN New Member

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    Thanks,

    This is the map as delivered by URD when I bought the X-1. There was no additional maps on the zip drive to go back to. I am curious if this was a map for E85? When I bought the X-1 I also purchased your 668cc inj. and 255 pump kit. We had discussed E85 as a possibility down the road and that may have lead to this map going into the X1

    If this is something you can email me I would appreciate it.

    motomoon at hotmail ,com
     

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