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Thread: Can I remove the Rev Hang from 5.7L HEMI RAM?

  1. #1
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    Can I remove the Rev Hang from 5.7L HEMI RAM?

    Can I remove the Rev Hang from my 5.7L HEMI RAM?
    Is "Rev Hang" the right terminology I should be using?

    Thanks,
    Scott
    Turbo'd S10

  2. #2
    Tuner in Training
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    What year model is it bud. If by rev hang you mean the lazy shifts than yes. It can be tuned out. Depends on what trans you have for the process. Lot of good posts in the transmission forum for help.

  3. #3
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    Quote Originally Posted by luciddeath View Post
    What year model is it bud. If by rev hang you mean the lazy shifts than yes.
    Sorry, 2014 RAM 1500 with 5.7L HEMI and 8-Speed.

    I'm not talking about shifts. The ZF shifts great. I'm talking about when your rev the engine and it /slowly/ decreases the RPMs.

    Thanks,
    Scott
    Turbo'd S10

  4. #4
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    I got you, I would post the tune up so people can chime in bud.

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    I have had luck with decreasing PT spark in the low aircharge areas, will lead to surging if you go too far.

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    Quote Originally Posted by luciddeath View Post
    I got you, I would post the tune up so people can chime in bud.
    I will work on pulling it down. It's the factory tune, though.

    Thanks,
    Scott
    Turbo'd S10

  7. #7
    Tuner coanan's Avatar
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    Quote Originally Posted by thehemi View Post
    I will work on pulling it down. It's the factory tune, though.

    Thanks,
    Scott
    I'd look for vacuum leaks with a can of brake and parts cleaner, (flamable type) eng with rev if you hit the leak with it.
    2013 Chrysler 300S, 6.4 BGE with 6.4 SRT cam, AIT 18% OD pulley, E-force with 2.75 pulley, fastman 84+4 mm throttle body, 1 7/8 kooks long tubes w/hi-flow cats, Magnaflow Cat-back, FTI 2800 stall, Trans built by Hellraiser, Dings Racing valve body and tune, Getrag 3.73, Walbro 400LPH, DW 65# inj. LG aluminum rad. Dual SRT fans. 4 piston Brembo upgrade. Mopar Stage one springs.

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    Quote Originally Posted by coanan View Post
    I'd look for vacuum leaks with a can of brake and parts cleaner, (flamable type) eng with rev if you hit the leak with it.
    No, it's not a vacuum leak, it's the tune. Sounds like an emissions thing. I think it's most annoying with manual transmissions.

    https://www.carthrottle.com/post/rev...heads-hate-it/
    Turbo'd S10

  9. #9
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    When I was data logging via a trinity, I would often see throttle hang.
    https://www.challengertalk.com/forum...3&d=1518629940

    Unlike the chevy guys we don't have a pedal follower mode or at least one that is mapped.
    https://www.youtube.com/watch?v=MxnnFDpy2-4

    There are things in FI applications that can create more throttle hang but in NA applications I have not seen anyone successfully get rid of it completely.
    https://forum.hptuners.com/showthrea...l=1#post365545
    Last edited by Homer; 3 Weeks Ago at 05:46 PM.