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share their turbo timing table for fitech power adder

Discussion in 'EFI Tuning Questions and Engine Management' started by Cody, Nov 19, 2017.

  1. Cody

    Joined:
    Nov 19, 2017
    I have a chevy 383 blow through turbo with a 1200 power adder fi tech. Can anyone help me with the timing numbers I can plug into the handheld at each RPM they ask for. Not sure how much to take out!
     
    Cody, Nov 19, 2017
    #1

  2. B E N

    Joined:
    Nov 22, 2016
    Your out of boost and cruise numbers can start at somewhere around stock values, then you'll need to pull out at least 2 degrees per pound of boost. You can tune from there, take it easy and be conservative to start. It's better to start out easy and work your way up than get too aggressive and damage the engine.
     
    B E N, Nov 20, 2017
    #2

  3. Cody

    Joined:
    Nov 19, 2017
    Can you tell me how different I will need to gap my spark plugs. I assume with the boost it will need to be gapped a lot closer than 45
     
    Cody, Nov 21, 2017
    #3

  4. tbird

    Joined:
    Sep 1, 2004
    Need more info to answer these questions.
    compression, boost , fuel, power adder, etc
     
    tbird, Nov 21, 2017
    #4

  5. Cody

    Joined:
    Nov 19, 2017
    8.8 to 1. Fuel is 93 octane. 76 mm turbo the go port efi. Boost around 10-12lbs
     
    Cody, Nov 21, 2017
    #5

  6. tbird

    Joined:
    Sep 1, 2004
    IMO.
    11.7 afr, 25-28 degrees at 10 psi. Base timing 36 and pulling it down .75-1.0 per lbs
    Plug gap .028

    If you have an intercooler then you will probably be more in the .5 per lbs
     
    tbird, Nov 21, 2017
    #6

  7. Mnlx

    Joined:
    Sep 20, 2009
    Play it safe though, these type of threads can go very wrong.... If you're not ready, or able to tune your spark tables, then you should find a tuner, and a dyno.
     
    Mnlx, Nov 21, 2017
    #7
    tbird likes this.
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