Does anybody else have max boost of 10 pounds?!

Discussion in 'Dodge Challenger SRT Hellcat' started by X-Men Fiend, Jun 5, 2015.

  1. X-Men Fiend

    X-Men Fiend Gold Member

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    In the data written about these hellacious cars it states they make 11.6 pounds of boost. I've noticed my car is not as potent as other folks describe. I've been watching the boost gauge, and I think I found out why. With the black key, boost maxes out at 6 pounds, and in full power mode with the red key it hits 9 pounds and briefly hits 10 pounds at upper revs. If it's supposed to make 11.6lbs of boost pressure, but is only maxing out at 10, that should explain why my car does not feel as powerful as it should, correct?
     
  2. hellcat1

    hellcat1 Gold Member

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    Higher boost numbers come at higher speeds..give that a try
     
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  3. SinisterKitty

    SinisterKitty Silver Member

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    Altitude? East Phoenix is at about 1100-1200ft eh?
     
  4. rubbel

    rubbel Gold Member

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    Tested mine on expressway entrance - reads 11 lbs.
     
  5. X-Men Fiend

    X-Men Fiend Gold Member

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    Were you at high speed when it clicked from 10 to 11 pounds of boost, or will it hit that pressure at like 60mph or less? Phoenix area is like 1100feet or so, so elevation is low; We only have 91 octane fuel here, but I'd guess others getting more boost in their cats are relegated to that lesser grade gas too.
     
  6. SinisterKitty

    SinisterKitty Silver Member

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    Yeah
    Yeah that's true. You normally lose .5 psi per 1000ft according to Kennebell.
    FAQ s
     
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  7. rubbel

    rubbel Gold Member

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    I went WOT at 40 MPH and boost went to 11 psi quickly ( a few seconds perhaps ) as car picked up speed to 90 MPH. I am in Florida so perhaps 20 feet above sea level. Not sure what MPH was when boost read 11 psi but if happened very quickly after going WOT from 40 MPH
     
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  8. mowe

    mowe Gold Member

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    Pin it in 3rd gear. Illegal speeds but tell me at 6250 what you see
     
  9. Evil_GTR

    Evil_GTR Hellcat Member

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    I never see more than 10 and I am in Phoenix.
     
  10. Nutshell

    Nutshell Senior Hellcat Member

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    11 here in Dallas.
     
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  11. 7777.775

    7777.775 Guest

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    I'll have to try. At about 50ft. ASL here at home.
     
  12. canaan

    canaan Silver Member

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    10 in va and I have held it to the floor from 2nd and to 5500 in 3rd its a m6
     
  13. WhoFlungPoo

    WhoFlungPoo Silver Member

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    11 here every time I nail it into third gear in SC.
     
  14. usmc341

    usmc341 Gold Member

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    Haven't nailed it yet but ambient conditions (especially DA) have a huge effect on boost. 2200 ft here in Vegas and my Shelby rated at 15psi never saw more than 14. Took a trip to San Diego and she jumped to 15 every time. Don't get too caught up in the numbers. On the Shelby boost was displayed as an inferred value by the PCM. Not sure if the HC works the same way.
     
  15. Hubbs

    Hubbs Silver Member

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    11.6 in Dallas (650ish elevation).
     

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