Supercharger stopped working

Discussion in 'Dodge Charger SRT Hellcat' started by AER, Jun 27, 2015.

  1. AER

    AER Gold Member

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    I had my car out for spirited driving recently and after about 35 minutes the car seemed to lose a lot of power almost like the supercharger was heat soaked. It did not go into limp mode.

    Seemed to fix itself after letting the car sit for awhile.

    Any ideas?

    I will also say the next day the paddles weren't working correctly for a few hours.
     
    Last edited: Jul 1, 2015
  2. B5 Blue

    B5 Blue Platinum Member

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    Any codes? What did boost read when happening? What was IC temp?
     
  3. AER

    AER Gold Member

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    Nope no codes, didn't have the gauges on.
     
  4. budkole

    budkole Best Color and fastest is undoubtedly WHITE

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    heat soak maybe?
     
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  5. usmc341

    usmc341 Gold Member

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    Positive displacement supercharger doesn't have a wastegate. I agree you probably had some serious heat soak. Heat soak will zap 50hp easily.
     
  6. TrackDay

    TrackDay Silver Member

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    The bypass valve is functionally the waste gate.
     
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  7. AER

    AER Gold Member

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    So the question begs to be asked, did something fail or are these cars just really not designed to do anything other than look pretty?
     
  8. FreightTrain

    FreightTrain Comfortably Numb

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    your not giving much information.. location & outside temps, altitude above sea level.., or any of the temps your engine was running..
     
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  9. budkole

    budkole Best Color and fastest is undoubtedly WHITE

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    No...nothing failed. Supercharged engines are prone to heat soak over a period of time. Thats why race cars are naturally aspirated. The hellcat wasnt designed to do lap after lap after lap all day, i cant find the video where they (SRT) was talking about this very thing. However, heat soaking takes longer to reach on these cars compared to the chevy's & mustangs
     
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  10. bolivarshagnasty

    bolivarshagnasty Gold Member

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    Your thread title would let everyone know you are clueless about your car. It's a positive displacement supercharger and would stop your engine if it failed. Only way it fails is if the belt breaks, or the bearings lock up. As others have said, if it "fixed itself" it may have been heat soak. Your thread title would have read "Engine Quit" if your supercharger stopped working.
     
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  11. VanishingPoint

    VanishingPoint Silver Member

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    I can tell you right now, without hesitation from my extensive non-scientific testing that temperature and humidity play a huge factor.

    I have personally seen HP swings of 60 hp all in a span of 14 degrees and 90-60% humidity over the span of 30+ runs of various temps.

    Hot & wet air suck for power-oh, and altitude.

    The claim is the car can run all day in 100 degree heat w/o pulling timing, but that doesn't mean that it can change the laws of nature. Also, it depends on the course-you need some speed to get air through the beak to shed the heat you have accumulated.

    Further, you must have been on a real short track to do 20 laps and not run out of fuel. Or maybe you were so low, the car wasn't getting all the fuel it needed?
     
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  12. Paladin06

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

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    This car is not a Vette. There was extensive testing done on the track and the dyno to ensure this heat soak you mentioned would not occur. I would take the car to the dealership for further inspection.
     
  13. rayzazoo

    rayzazoo DRIVESRT.COM Gold Supporting Member

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    Did you remove the lower front grill?

    • If equipped with a removable lower front fascia grille, it is recommended to remove it for track use during warm/hot weather to improve cooling airflow to critical powertrain and cooling system components

    [​IMG]
     
    Last edited: Jun 28, 2015
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  14. Paladin06

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

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    I don't believe the heat soak problem suggested on 75 degree day. I suggest you look else where for your problem.
     
    Last edited: Jun 28, 2015
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  15. B5 Blue

    B5 Blue Platinum Member

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    Any suggestion is guesswork as we don't know any gauge readings. Not to sound harsh but I drive with gauges 1 on at all times let alone if one is thinking of a supercharger issue why not turn them on at that time.
     
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