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Thread: Lbz cp3 in an lly

  1. #1
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    Default Lbz cp3 in an lly

    which tables I need to change and by how much to make an lbz cp3 and lbz fpr work like it's supposed to in an lly?

  2. #2
    Lifetime Member anarchydiesel's Avatar
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    You will need to rescale the LLY FPR current conversion table to mimick an LBZ. Open up a stock LBZ file and compare the tables. It is not a direct copy, you will have to do a little math to make the LLY map resemble the LBZ map. It will likely take you a few attempts to get it smoothed out and even then you may still have some rough spots here and there.

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    Lifetime Member THEFERMANATOR's Avatar
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    Heres what I used in my LB7. I tried plotting the two against each other, and had several spots where desired didn't match actual, so I came up with this table. I do run a 2250 pulsewidth though, so the upper ranges of mine will be a good bit lower than a stock truck.
    Click image for larger version. 

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    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
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    Lifetime Member Dmaxink's Avatar
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    Basically add 13% to your lb7 reg curve and should be pretty close.
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  5. #5
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    I appreciate the help. I got a buddy who's going to do the tuning and this will help him figure out what we need to do, I appreciate it

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