Kooks long tube headers

Discussion in 'BWoody Performance' started by ColeBartakovic, Feb 6, 2016.

  1. ColeBartakovic

    ColeBartakovic Senior Hellcat Member

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    hey i saw on your website that you have added kooks long tube headers. Have you dynoed this at all on any car? And also have you tried it with the solo catback? If so i video would be great!
     
  2. mike@bwp

    mike@bwp Gold Member Hellcat Supporting Vendor

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    no we have not dynoed it, sorry i do not plan on running the Kooks on my personal vehicle, if a customer wants to dyno and give results that would be great.
     
    Last edited: Feb 9, 2016
  3. mike@bwp

    mike@bwp Gold Member Hellcat Supporting Vendor

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    I do however have the Solo exhaust on my car video clips are on our Facebook page.
     
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  4. HCone

    HCone Gold Member

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    Hi Mike

    I was told longtubes are not necessary on the HC and may reduce HP, can you give me your thoughts?

    Tks
     
  5. mike@bwp

    mike@bwp Gold Member Hellcat Supporting Vendor

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    Traditionally long tubes don't do much for F/I engines due to supercharged engines normally need back pressure. I would say unless you are planning on increasing your boost level keep the OEM exhaust manifolds, because more than likely your gonna loose about a pound of boost. Would be nice to see some header company release a set of 1 3/4 headers so we could retain some back pressure (now that would make power on a stock Hellcat). As of right now I would choose the stainless works headers if I were going the header route due to they are 1 7/8" an 1/8" smaller than the kooks which are 2".
     
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  6. ColeBartakovic

    ColeBartakovic Senior Hellcat Member

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    Im going to be running the 2.75 pulley on mine and im not sure if i want to do long tubes. Someone said the drone is terrible
     
  7. QCKitty

    QCKitty Hellcat Member

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    Why would you want back pressure on an engine you are forcing air through? Seems to me that a pressure decrease means a more efficient engine. Whats the logic here?
     
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  8. TrackDay

    TrackDay Silver Member

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    I think it's not just backpressure. With less backpressure you can over scavenge the cylinder before the exhaust valve closes. Ideally in that situation you would just lessen the overlap of the camshaft so you don't blow unburned fuel out the exhaust.
     
  9. Top Cat

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

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    We haven't seen any benefit of long tubes vs stock OEM headers on my car vs Linda's, so unless you are going to the very extreme in mods I would save the money and keep the OEM headers, as we take Linda to the next level may be we will see something? or not.
    TC
     
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  10. QCKitty

    QCKitty Hellcat Member

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    Fully agree with you. And after doing a set on my procharged charger srt i dont ever want to do that job again.

     
  11. Aarcuda

    Aarcuda Gold Member

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    The deal is the factory headers rock!! long tubes are great and the reduction in back pressure lowers the boost pressure so theoretically you could change pulleys to get the boost back but you'll be make shut tons of power (need a tune)
     
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  12. ColeBartakovic

    ColeBartakovic Senior Hellcat Member

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    Im going with,
    2.75 pulley
    Solo catback
    Sct tune
    Bwoody intake
     
  13. mike@bwp

    mike@bwp Gold Member Hellcat Supporting Vendor

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    You won't be disappointed
     
  14. Leoneaj33

    Leoneaj33 SRT Hellcat Supporter Gold Supporting Member

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    Do you need injectors with the 2.75 pulley Mike?
     
  15. mike@bwp

    mike@bwp Gold Member Hellcat Supporting Vendor

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    Its borderline, as long as your tune is conservative you will not need injectors with the 2.75 pulley, if you want an aggressive tune I suggest injectors.
     

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