Results 1 to 2 of 2

Thread: Fuel pressure and injector PW

  1. #1
    Advanced Tuner Ghostnotes's Avatar
    Join Date
    Feb 2012
    Location
    Houston, TX
    Posts
    471

    Fuel pressure and injector PW

    I posted a screenshot.

    From my understanding I should not be out of fuel/injector yet,I'm only seeing 5PSI boost. My Rail pressure is close but my low side is trailing off. On top of that my PW is 6.6. Just to make sure and correct me if i am wrong but I'm calculating boost from the included boost math.

    I also thought I read somewhere that changing your injector timing can help with that. I set my SOI according to my cam specs and left my EOI to no greater than 180.

    Is there anything else to the injectors that can be tweaked?

    Also looking at my VT I punched it in second and it goes sky high (Driv demand axle) but is above my(CMD Axle TQ) witch would indicate my VT is way high. Then at about 4500 it (CMD Axle TQ) crosses over (Driv demand axle) which it is not supposed to do. I'm not seeing any throttle closure or pulled timing Untill my IAT goes a little high. However 3rd and 4th look damn near perfect.

    So instead of rowing through the gears at WOT, should I just pull in 4thand use that?
    Attached Files Attached Files
    I always tune VVE....
    2016 C7 M7 Z51
    Callies ultra billet crank
    Callies ultra billet rods
    Diamond pistons
    Jhonson high speed lifters
    Ported and polished headwork
    Custom cam
    YSi-V7

  2. #2
    Advanced Tuner Ghostnotes's Avatar
    Join Date
    Feb 2012
    Location
    Houston, TX
    Posts
    471
    Thoughts?
    I always tune VVE....
    2016 C7 M7 Z51
    Callies ultra billet crank
    Callies ultra billet rods
    Diamond pistons
    Jhonson high speed lifters
    Ported and polished headwork
    Custom cam
    YSi-V7