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Thread: Challenger RT Plus A5 392 Cam and BBK Shorty Headers - Propes tune

  1. #1

    Challenger RT Plus A5 392 Cam and BBK Shorty Headers - Propes tune

    Hello Guys,
    Doing my tune for 2 moths now. I have turned off ANN, and switched to VE.
    Recently finished my VE tabels adjustment, got nice 12.5 AFR during WOT.
    My problem is, that i should have a better times than 5,0-5,1s with 0-100kph.

    Can someone please help me with the clue, what could be done better?

    I've got a 2013 Challenger with 3.06 axle, A5 (NAG1) transmission, BBK shorty headers, Comp Cams .600" Lift Beehive Springs Kit, 392 Cam.

    I've read a lot of topics, even compare others tune (Diablo 93, etc.) but i can not find the answer.
    Should i go still with WOT Spark, or Exhaust Cam Angles, or Pedal follower, or maybe Transmission tuning?

    Please help, and thank you in advance for sharing your experience.

    test 37 - VE & non NN.hpt
    37.hpl

  2. #2

    Tune finalizes

    I got 12.7s quarter mile on public road.
    Feel free to use.
    Spark knock eliminated, NAG1 has been a little bit advanced.
    Good stuff.

    MDS, anf VVT still operatable.

    392 intake - test 70-5 test na wysokooktanowym paliwie nowe MBT Launch softener - part spark red.hpt

  3. #3
    Have you tried it with your "sports" torque converter settings put back to stock. Does it make a difference?

  4. #4
    Maybe your tyres arent hooking correctly ? Basically your launch isn’t optimal , next step is a new lsd differential this will improve your 0-100 and better tyres of course

  5. #5
    Quote Originally Posted by malikib View Post
    Maybe your tyres arent hooking correctly ? Basically your launch isn?t optimal , next step is a new lsd differential this will improve your 0-100 and better tyres of course

    I think i got best tires for daily drive - Michelin PS4S 275/40R20 rear.
    Problem is i cannot move any further. Messing with spark doesn't make any difference to be honest.
    Any suggestions Guys?
    Yes, thinking about converter.

  6. #6
    Advanced Tuner f.creek-ranch's Avatar
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    OK ,old post, I now.

    The Problem is the open diff. I tune the RT and never get a better result than 5 sec.
    If you open the TCC and ESP the tires will slip.

  7. #7
    Advanced Tuner PurpleRam's Avatar
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    Aug 2017
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    What I want to know is , why is the MDS still active ? what lifters did you put on this .600 lift cam ?
    04 GTX........ 8.91@151mph 392Ci G3Hemi NA 3600lbs 2.6HP/CI Naturally Aspirated
    05 GTxtreme 9:45@142mph 426Ci G3Hemi NA 4000lbs
    G3 Hemi Videos

    https://www.youtube.com/channel/UClS...5mXdDR5sOxs10Q

  8. #8
    Gents,
    My best time 0-100kph with open diff was 4.7s which corresponds to ~4.5s 0-60mph. Diff was 3.06, real trick was to get the tires worm/hot. No LSD was needed then.

    PurpleRam, i have stock MDS lifters.