Density altitude

Discussion in 'SRT Hellcat Performance' started by Tweaked, Jun 20, 2015.

  1. Tweaked

    Tweaked Hellcat Member

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    Finally got to take the car to the track.
    The best it would do was 11.90 at 120.06. Density altitude was 6245 feet. Track was not sticky at all. Sixty foot was 1.87 on radials. Can someone tell me what the car would have ran at sea level?
     
  2. fnkychkn

    fnkychkn swollen member Gold Supporting Member

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  3. Tweaked

    Tweaked Hellcat Member

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    Good information. Now I just have to figure out why it is slow.
     
    Last edited: Jun 21, 2015
  4. Driver72

    Driver72 Gold Member

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    The DA converter on Drag Times is not an exact number, so even though it's saying 11.5 @ 124, you might of done an 11.4 @ 125
    And to be honest, that's probably about normal for an all stock car.
    1.87 60 foot time is also not bad at all for that altitude.

    If your car doesn't have at least 1,500 miles on it either, and preferably 3k plus, it'll still get better with a bit more break in miles.

    Lastly if you are on 91 Octane, that could cause a bit slower times as well.
    The tests SRT has done is on 93 Octane I'm sure.
     
  5. B5 Blue

    B5 Blue Platinum Member

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    1.87 on stock tires?
     
  6. Hemibuck

    Hemibuck Gold Member

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    Ya man I would be proud of the 60' time! Put some 93 in her and pull the air filter out next time.
     
  7. Driver72

    Driver72 Gold Member

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    I would NOT pull out the air filter. Not worth the damage if something gets into the engine.
     
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  8. Tweaked

    Tweaked Hellcat Member

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    I would love to put 93 in but in my area there is only 90.
     
  9. Driver72

    Driver72 Gold Member

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    Well there's your answer.
    With a 1.87 60 foot time, if you had 93 Octane you'd be running 11.3's @ 126's at sea level
    You are losing close to .2 seconds and 2 mph with the 90 Octane, pretty positive of that.
     
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