Hellcat boost numbers

Discussion in 'SRT Hellcat General Discussions' started by kevorkian, Mar 28, 2015.

  1. kevorkian

    kevorkian Rookie

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    I am only getting 9 psi. I thought were supposed to get 11.6. What are you getting!!!
     
  2. hellcat1

    hellcat1 Gold Member

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    I'm probably not the one to answer this, but every video I have seen only shows nine
     
  3. tsc

    tsc SRT Hellcat Enthusiast

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    Boost is progressive/variable.. You have to be in higher gears/at a higher speed to reach 11. My in car ride along video shows it hitting 11 psi twice, both times at about 90 mph.
     
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  4. hellcat1

    hellcat1 Gold Member

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    Tsc,, can you repost that video
     
  5. tsc

    tsc SRT Hellcat Enthusiast

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    Sure...

     
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  6. Nycsrt

    Nycsrt BANNED

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    Dope plates
     
  7. hellcat1

    hellcat1 Gold Member

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    I like it,, looks like 75
     
  8. tsc

    tsc SRT Hellcat Enthusiast

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    Those plates were transferred from my old Challenger, but weren't as fitting for the Hellcat. It's now 'LOL 707' and the Charger is '707 LOL'.
     
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  9. VanishingPoint

    VanishingPoint Silver Member

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    This is my first boosted vehicle; so this is normal with a supercharged car? Are we sure it isn't Dodge lowering power via venting boost in the first 3-4 gears ? I've known motorcycle companies to limit power in the first few gears....
     
  10. hellcat1

    hellcat1 Gold Member

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    Tsc has he has seen 11 pounds of boost around 90mph
     
  11. VanishingPoint

    VanishingPoint Silver Member

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    Yes, in the upper gears? That would be 3rd or 4rth, yes?
     
  12. tsc

    tsc SRT Hellcat Enthusiast

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    Correct, I've only seen 11 psi in 3rd gear or above (A8). As I mentioned earlier, the boost is variable/progressive. It is all controlled by the computer and bypass valve. I'm sure this is being done on purpose since even more power in 1st and 2nd gears would just lead to even more wheel spin...
     
  13. Evil_GTR

    Evil_GTR Hellcat Member

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    I see 9 PSI and then as RPM climbs it hits 10 PSI.....I have never seen 11 and I drive the car....hard.
     
  14. 70Cuda

    70Cuda Yep, its got a HEMI

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    The factory gauge is not that accurate. Unless you have another way you won't know for sure, Just use it like a guide.
     
  15. racer14

    racer14 Hellcat Member

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    Boost is just a measure of back pressure anyways, and can be affected by temperature, humidity, and elevation. I'm sure cars which are seeing 10psi, 11psi, and 9psi are just fine.
     

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