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  1. With my project (cam 427 wipple) shift points...

    With my project (cam 427 wipple) shift points had to be changed some times 5 to 8 mpr ,tq management,had to be changed unless you like your timing going to the - at low speeds with a big cam...
  2. "the change to Axle Torque from Engine kilowatts...

    "the change to Axle Torque from Engine kilowatts seems to have thrown a wrench in it (for me at least)."

    To do axle tq it looks at gear ratio vs speed from what I have came up with.
    That is why...
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    Pretty much so just think about how it works and...

    Pretty much so just think about how it works and make small steps.
    Because its axle tq it looks at gear ratio to figure out the throttle openings
    first gear 4.5596 though rear end gear that a lot...
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    Funny you ask it has been disabled because in the...

    Funny you ask it has been disabled because in the past gen 4 stuff sounded like fart can with it on
    so I though hmmm gm made these to decel with dfco on so I turned it back on seems to work much...
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    STFT Adding 39% on deceleration

    Has any one seen stft add extra (39%)fuel on decel stock 02 read 8xx mil volts wide band goes rich its only with app at 0 with low air flow modes
    I have done like 60 flashes setting 02 set points...
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    After making a tool to test pump travel and doing...

    After making a tool to test pump travel and doing some tweaking on pump install ,6 lbs on pump gas (4th gear dyno pulls) final tuning it made 535
    That being said 700 HP on my dyno e85 junk yard...
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    I had this happen,I pulled my hair out until I...

    I had this happen,I pulled my hair out until I though about the problem
    With the mass air set to fail it gives it very low air flow when the engine cranks so very low fuel
    I looked at maf reading...
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    Same problem here 2015 gmc yukon denali 427,...

    Same problem here 2015 gmc yukon denali 427, whipple ,cam in the high 23x @.050 I had no problem getting wot with maf on went to sd lost a bunch of throttle
    lower my air base back to stock helped...
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    lol i did 442

    lol i did 442
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    16 degs timing, 6.5 lbs ,12.00 afr, 3rd gear...

    16 degs timing, 6.5 lbs ,12.00 afr, 3rd gear ,with 8 speed trans, gmc yukon denali 5 inch drive shaft, that was like 3rd pull when pump locked up
    I have a superflow 845 that's there dyno jet...
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    you need meth this is a every day driver here,...

    you need meth this is a every day driver here, its the 4th one I have done over the years for this guy he has a 05 suburban 582 twin turbo I did in 06 if he wants to really go fast lol
    Just looking...
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    This one has a whipple holding it down,the intake...

    This one has a whipple holding it down,the intake was clearance for the lt4 pump and it was still rubbing so maybe that helped

    I am going to make a tool so I can check lobe to pump clearances,the...
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    My boss took the pump with the big spring...

    My boss took the pump with the big spring off,clamped the small spring and shaft in a vise with light tension then give it a easy pull it came unstuck.
    looks like it floated the pump spring and...
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    Yes it is a lt4 pump

    Yes it is a lt4 pump
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    I turned the motor over to check cam travel with...

    I turned the motor over to check cam travel with calipers (ruff idea) it does not come up to the pump height

    With the outer spring off the pump looks a little funny.
    I need a new one to check...
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    I took the blower off it was a pain, if it was...

    I took the blower off it was a pain, if it was .030 bigger it would not fit wow its tight.

    Not sure what's wrong nothing looks broken

    Maybe the pumps bad from a big lobe cam and lash cap?
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    I am thinking this happen to me after a pull. ...

    I am thinking this happen to me after a pull.
    Fuel rail pressure dropped,set a low rail pressure code and dies.
    Made a pull engine was running fine got to about 3 mpr and shuts off after
    looking...
  18. your welcome

    your welcome
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    :cool:

    :cool:
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    I have no wounds, I am a mature man who doesn't...

    I have no wounds, I am a mature man who doesn't belittle others to make them self look big. I've been doing this for 30 years without your attacks!
    I got my questions answered

    Thanks again
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    Looks like your here to put people down! This was...

    Looks like your here to put people down! This was my first gen 5 I have done ,I ask questions about idle because I knew these ecms where tq base,I have tuned 1000s of cars that idle great (INCLUDING...
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    ok whats wrong ?

    ok whats wrong ?
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    With your ve and maf tuned perfect your raping...

    With your ve and maf tuned perfect your raping your motor with maf that's why gm commands mid 10 afr in there zr1.
    Try it with A 8000 lbs suburban with many loads(constant) of 100 to 90 kpa ,pe all...
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    yeah I have fixed a couple ve and maf...

    yeah I have fixed a couple ve and maf calibrations in my day
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    I will after my LS9 MAP sensor comes in gmparts...

    I will after my LS9 MAP sensor comes in gmparts direct takes for ever damm
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