Boost Pressure

Discussion in 'SRT Hellcat Performance' started by solo7777, Dec 24, 2014.

  1. solo7777

    solo7777 SRT Terminator Hellcat Car Club Western Regional President HCC Charter Member

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    Hey Guys and Gals,
    Am I reading this right, 30 PSI boost max. on the Cat? I am not well versed about this, and was wondering what the maximum boost is, in case somebody asks? Anybody know for sure?
     
  2. Top Cat

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

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    11.5
     
  3. sunger

    sunger Senior Hellcat Member

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    Better put a parachute on the back.
     
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  4. Fireball

    Fireball Silver Member

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    Matt's not making 20 psi with this blower
     
  5. EDDIE

    EDDIE Senior Hellcat Member

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    HAHAHAHAHAHA LOL:confused:
     
  6. hellcat1

    hellcat1 Gold Member

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    Eddie,, are you sure you can get 18 pounds out of the stock blower....how long before tune time performance cracks the ecm and give us a safe tune....
     
  7. DNTBTHR

    DNTBTHR Silver Member

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    Would be nice to modulate the boost to get a better hole shot
     
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  8. Top Cat

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

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    18 psi is going to be difficult because of the blowers pulley assembly not to mention boost alone is only one factor in making HP, the blower is small (1.9) and is most likely near max rpm & flow, 15 psi is more in line with the 17% OD dampener and reworking the blow off assembly...
     
  9. hellcat1

    hellcat1 Gold Member

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    I thought the blower was closer to a 2.4...but I do think 18 psi is a lot..
     
  10. Top Cat

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

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    Yes, my bad 2.38 CC rated for 11.6 psi
     
  11. hellcat1

    hellcat1 Gold Member

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    I'm hoping that we have, or should I say dodge left us room for more boost
     
  12. Fireball

    Fireball Silver Member

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    I'm sure it will make 18-20 psi but it will just make loads of heat and not work very well at that level. I ran a 2.8 KB and 14psi seemed to be the magic number.After 14 it just made heat,the car never went faster than 9.6 even at 21psi and it went 9.6 at 14psi.
    I would think this little 2.4 would probably be about the same.However this car does have much better cooling than my 2008 did.
     
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  13. Fireball

    Fireball Silver Member

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    It don't matter if he knows what he's doing, the blower has it's limits and you didn't run no 10's with an RT at 8 or 9lbs of boost either.
     
  14. RadCat

    RadCat Left Shark

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    In stock form, this 2.4L blower is running 14,600rpm at rated power and 11.4-11.5psi. So it's definitely not at it's max rpm or psi. The Z06 is running a 1.9L blower spinning 20,000 at rated stock power, so it's doubtful that they'll be able to squeeze much more out of that one. But the Hellcat blower definitely has some more in it.

    Still, the big gains will be made when Whipple or Kenne Bell come out with some 3.0-4.0L blowers for these cars. That'll probably be a while though...
     
  15. hellcat1

    hellcat1 Gold Member

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    I,m not buying another blower, I will be at the mercy of tuning
     

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