BACK FROM THE DYNO

Discussion in 'SRT Hellcat Performance' started by VAL, Feb 15, 2016.

  1. VAL

    VAL Senior Hellcat Member

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    Okay, so I went to Injected Engineering here in Atlanta this weekend to see what kind of nos. my stock 2016 A8 Challenger would put down. I have no plans to modify and will keep this car completely stock but just wanted to see where I stand and compare to other stock vehicles. The results were 672 hp and 623 tq. I am quite pleased and surprised. Can these nos. be right? That seems awfully high. Allowing for a 15% loss, wouldn't that put my gross HP at about 790? Anyone else seeing these results?
     
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  2. MABBRYFL30

    MABBRYFL30 NYS President Hellcat Car Club Gold Supporting Member

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    I would love to dyno my cat when I get it
     
  3. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

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    There are a lot of variables that go into a dyno run, temp, humidity, density altitude, type of dyno. The engine is factory dynoed at 707hp and 650 lb tq at the crank. Nothing is really gained by doing a dyno unless you mod the car.
     
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  4. StellasHC

    StellasHC Platinum Member

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    photo.JPG
     
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  5. Danny123

    Danny123 SRT Hellcat Moderator Staff Member

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    And you Believe the 707 at the crank right ?
     
  6. Lighty

    Lighty Silver Member

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    I cant wait to get to the track! my stock stock all season tires run 11.7 129.24 is going to be dropping into your range with the sticky tires. This car is a beast and pulls like mad on the top end.
     
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  7. Lighty

    Lighty Silver Member

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    Dont think they max them out on the factory dyno run 5000 rpm and 90% i read somewhere. SAE is 707...they have admitted that that is nominally low number and every engine will achieve at least 707 and most have plenty more..
     
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  8. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

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    No, not really. :).
     
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  9. Lighty

    Lighty Silver Member

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    Calculate HP from Trap Speed
    Vehicle weight in pounds (including driver)
    4700lbs

    Trap speed at end of 1/4 mi in m.p.h.
    129.24m.p.h.

    You are making :792 HP at the rear wheels and 950 HP at the flywheel*.

    lol :eek:
     
  10. Top Cat

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

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    Dyno's and calculating programs are just tools and not an exact reading, too many variables,enjoy the car and have some fun.
    TC
     
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  11. VAL

    VAL Senior Hellcat Member

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    For me it was just to know where my car stood. We all know that some engines are stronger than claimed and some with less power than claimed. So now I know. For me, it was worth $85.00 and it was fun.
     

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  12. TNCHARGER

    TNCHARGER SRT Hellcat Supporter Gold Supporting Member

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    ^^^^exactly....dynos are for tuning and the track is for bragging..
     
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  13. buddyg

    buddyg Gold Member

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    Dyno's don't mean anything unless you are using them to show what you have picked up with your mods. Then it has to be the same dyno in similar conditions. Most people are getting 630 rwhp which equates to around 740 at the flywheel. Guys that have actually run them at the track stock are usually 10.7-10.8 and that is the proof that's in the pudding. Mine went 10.8 stock on daily driven drag radials. (Nitto 555R)
     
  14. MoparR/T

    MoparR/T Senior Hellcat Member

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    Mine was 595 rwhp before tuning. I don't think the 6.2 hellcats are varying 80-100 horsepower from the factory. Or, maybe I should check my crank pulley:)
     
  15. buddyg

    buddyg Gold Member

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    I've never seen one read that low, what kind of dyno? Do you live in a high elevation area?
     

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