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Thread: 2018 Hellcat Pulley Tune - Help!

  1. #1
    Potential Tuner
    Join Date
    Apr 2024
    Posts
    2

    2018 Hellcat Pulley Tune - Help!

    Hello,
    I'm trying to get a hellcat dialed in on the dyno, and keep running into issues. It is falling on its face/limiting? at around 3500RPM+. On the dyno graph, it climbs very cleanly to 550ish tq in 4th gear, and can't manage to get above that.
    I don't know if it is a torque management thing, or with the higher boost pressures if I'm missing something? Any help on this would be greatly appreciated.18Hellcat-part-throttle-full-throttle pull.hpl18hellcat - KR threshold-5percentPE.hpt

    2.85 super charger pulley
    10% lower pulley
    Pinned lower pulley
    Brisk ER10S Silver racing spark plugs
    3.5 idler pulley on super charger belt
    Ported super charger snout
    105mm Throttle body   
    Cold air intake   
    2" long tube headers
    Tapped performance stage 1.5 dual fuel pump w/ FIC1440 injectors

  2. #2
    Senior Tuner veeefour's Avatar
    Join Date
    Oct 2016
    Location
    Poland
    Posts
    1,750
    we tuned a bunch on 2.85 - if you want a proven paid service hit me up

  3. #3
    Potential Tuner
    Join Date
    Apr 2024
    Posts
    2
    The limiting factor seems to be torque, at about 680wtq it stumbles and falls on its face. Fuell pressure good, AFR's good, timing only pulling a couple degrees, 15-16psi boost. Pulls clean up to 680tq(which it gets to in a hurry) but then it won't gain above that and is a bit choppy cutting out.

  4. #4
    Tuner in Training
    Join Date
    Dec 2018
    Location
    Florida
    Posts
    35

    Try this

    Open your file and compare it to this one and then try making minor changes to your file based on this one. if i can help in any way your welcome to reach out to me. i dont mind helping as best as i can .
    Attached Files Attached Files