SRT8 increased HP, how

Discussion in 'General Automotive Discussion' started by Vinnerman, Jan 23, 2015.

  1. Vinnerman

    Vinnerman Silver Member Hellcat Car Club Gold Supporting Member

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    The new SRT8 HP is listed at 485. Is that just a computer change for the 470HP engine. What did they do to get the 485HP out of the 470HP engine. Can that "update" be done to an existing 470HP engine and if so, how.
     
  2. B5 Blue

    B5 Blue Platinum Member

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    PM Jimmy S in Wisconsin and see if Dodge has a flash for your cars ECM but there may be more to it then that
     
  3. Jim Hetrick

    Jim Hetrick Silver Member

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    Vinnerman, you may have better luck on a SRT8 392 forum.
     
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  4. CubeMan

    CubeMan Tri-State Overlord

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    You could easily retune the 6.4's to pump out another 15hp.
     
  5. hellcat1

    hellcat1 Gold Member

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    Problem is the ecm is locked,, so you can't tune it..
     
  6. CubeMan

    CubeMan Tri-State Overlord

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    2011-2014 6.4 srt's were cracked. you could take a 2012 srt 6.4 and gain 15hp easily with a tune
     
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  7. hellcat1

    hellcat1 Gold Member

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    Do you know the person that cracked it, if there working on the hellcat?
     
  8. CubeMan

    CubeMan Tri-State Overlord

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    diablosport which basically has market dominance over the hemi tuning world is working on it. They do Ford,Dodge,Chevy. (They make the tuner hardware that tuners use to tune your car)
     
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  9. rayzazoo

    rayzazoo DRIVESRT.COM Gold Supporting Member

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    2011-2014 Challenger 392:
    470hp @ 6,000rpm

    2015 Challenger 392;
    485hp @ 6,100rpm.

    For the 2011-2014, Diablosport, as mentioned, already cracked the ECM. All you need to do from their is run the 91 octane tune (increases shift point to 6,100rpm) or use the "increase the shift points" feature in the quick adjust to get the same power output at the 2015.
     
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  10. Top Cat

    Top Cat Gold Member Hellcat Car Club Gold Supporting Member Fastest Cat/Record Holder HCC Charter Member

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    AJ, the Hemituner can handle the 2011-2014 392's and more than likely get you more than the 15, he is now on his own and not with Arrington.
     
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  11. THEONE

    THEONE Hellcat Member

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    A better Cold Air Intake and slight adjustment to the stock tune.
     
  12. 2TONRCKT

    2TONRCKT Hellcat Member

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    516-426-5735 True street performance AJ Hemituner, He just got back from Cali tuning the Hellcat I will find out later today how things went.
     
  13. goingsolo2

    goingsolo2 Beast will be back bigger and better than ever! Hellcat Car Club Gold Supporting Member Hellcat Supporting Vendor

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    My Hellcat is being dropped off with AJ tonight and he will be tuning it all day tomorrow:)
     
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  14. baabootoo

    baabootoo Hellcat Member

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    There's also the new SAE standard for measuring HP too. Maybe they did that.
     
  15. Tannehill

    Tannehill Silver Member

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    The 6.4L in the Jeep can be "tuned" if you want to call it that, but it is not completely unlocked like the 6.1L was. For all intents and purposes, it's fairly useless with regards to the cost-benefit of it all. It's also a reason that there have been quite a few WK2 Jeep SRTs with superchargers that have lost their engines. The 6.4L does not like boost.
     
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