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Thread: turbo lt1 tuning advice needed

  1. #1
    Carb and Points!
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    turbo lt1 tuning advice needed

    I am getting closer to getting the car dialed in I cant seem to find any good specs on my injectors how ever they are ford svo 42lb injectors part #280150558 I know they flow 42 lbs at 43.5 psi I cant find the injector vs voltage offsets that I need to get me in the right direction when i logged my car I was reading -100% LTFT so that so far off I know ill need to adjust my offsets before i can even start adjusting maf frequencys any help would be much apreciated
    most mods are listed in my sig anything else you may need i can provide.
    1996 Camaro ss 357 lt1 six speed boosted

  2. #2
    Fuel Injected! steveo's Avatar
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    you're reeeeeally far away from even worrying about offsets yet.

    are you running the stock ecm still?

    your signature doesnt even come close to the level of detail necessary to figure out how to tune this thing.

  3. #3
    Carb and Points!
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    O sorry thought I was on my other forum so its .040 over srp forged dished pistons -40 cc eagle h beam rods forged ported and polished heads and intake 53 cc chamber heads head gasket is a cometics turbo is a t4 .68 a/r hot side 42lb green top injectors it is intercooled and small can .512 lift with 114 + duration first trip to dyno had a bad coil but made consistent 11.5 AFR so its running a very safe tune right now but need help with the fine tune I am still running maf tune till I get a 2 bar map sensor for speed density and I'm running stock ecm tuning with jet dynamic spectrum tuner
    1996 Camaro ss 357 lt1 six speed boosted

  4. #4
    Fuel Injected! steveo's Avatar
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    ah, a 96 ecm. out of my territory for sure

    but if you're running the stock map sensor, that means your timing is pegged into the last column any time you're in boost. until you get that resolved, there's no point going much further, is there?

    also the obd-ii in maf still need VE to work properly for transitional fueling, doesn't it? this is just going based on rumors, never done it.

  5. #5
    Carb and Points!
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    true but I have my 100kpa column set as if its in boost so it lags some until in boost but atleast i dont have to worry about predetination but im just trying to get all of my constants lined out before I get to the point where I can fine tune in boost levels injector offsets is just one of the few things I need solid info on and if any one has every sucessfully tuned a boosted app with maf
    1996 Camaro ss 357 lt1 six speed boosted

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