Preferred intake for PSI

Discussion in 'PSI Superchargers Tech Questions' started by john barnes, Jul 5, 2016.

  1. john barnes

    john barnes Member

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    .500 short deck, Brad 5 heads, D-rotor. Is there a preferred intake to use on this set up? I was informed that tire shake will crack a mag intake but that's pretty much all I ever see for sale.
     
    #1
    john barnes, Jul 5, 2016
  2. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    Well if tire shake cracked mag intakes, I would have cracked a bunch of them by now. I have yet to crack one from shake.

    If you bang the blower hard enough, I have seen it break/crack around the stud bosses.

    In a few rare instances, I have seen the bottom of the intake blown out.

    All of that said, 99% of the intakes out there are mag intakes. There are a few fab aluminum intakes floating around out there.

    NRE makes a billet aluminum intake that has been found to be worth some hp on the dyno. They make a roots and a screw version. If you are still running BAE 5 heads, you would probably find more power in upgrading your heads than buying a billet intake.
     
    #2
    Will Hanna, Jul 6, 2016
  3. john barnes

    john barnes Member

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    Will, thanks for the insight. Just looking for reliable simple power. Will & Reehl, what intake would you recommend?
     
    #3
    john barnes, Jul 6, 2016
  4. Sandracer695

    Sandracer695 Member

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    Kirk Kuhns is still making a fat head aluminum manifold. It is a air gap design. Just got one about 2 months ago.
     
    #4
    Sandracer695, Jul 6, 2016
  5. td3829mk

    td3829mk Member

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    Call BAE. (909) 923-1028
     
    #5
    td3829mk, Jul 6, 2016
  6. Bad1969nova

    Bad1969nova Member

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    W
    will what is the diffrence between a screw blown version an a roots? I have heard this before but never got a stright answer I have ran the one that came on my roots blown motor with a screw for years just wondering if it is worth changing?
     
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    Bad1969nova, Jul 6, 2016
  7. Mike Canter

    Mike Canter Top Dragster
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    Two important factors. The plate between the blower and manifold is very important. There are "stock" ones and "modified" ones. The modified gives a lot better air distribution than the stock one. Also, stock roots type manifolds need to be modified in the back to get the most out of a screw blower. This involves cutting the manifold and welding it to make the opening larger in the back. I agree with Will that you would get more bang for the buck by first changing your heads.
     
    #7
    Mike Canter, Jul 7, 2016
  8. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    In regards to the NRE intakes, they both were purpose designed for the type of blower and the discharge location of the supercharger. The screw intake is designed for a rear discharge while the roots is designed for front/center.
     
    #8
    Will Hanna, Jul 7, 2016
  9. john barnes

    john barnes Member

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    Mike, Will, thanks for the information. I wasn't sure what the difference was. If I get a properly modified intake and blower plate now. Can I use it on a future upgraded cylinder head? I have no intake for this short deck, so I need to purchase regardless. The heads have been modified with a larger intake valve, I will check notes to see. 2.480x1.900 valve size and seat angle change. Single plug alky head fully CNC'd.
     
    #9
    Last edited: Jul 7, 2016
    john barnes, Jul 7, 2016
  10. Bad1969nova

    Bad1969nova Member

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    mike who do you recommend to do this mod to the intake an plate thanks for the info
     
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    Bad1969nova, Jul 7, 2016
  11. Mike Canter

    Mike Canter Top Dragster
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    Call Jeremy Evrist at BAE I believe they do it. Also try Darren Mayer at DMPE.
     
    #11
    Mike Canter, Jul 7, 2016
  12. noiraude

    noiraude Member

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    #12
    noiraude, Jul 8, 2016
  13. youngtuner

    youngtuner Member

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    Whipple has an opening and mounting location like a roots, so you would use a roots manifold.
    A PSI screw blower has a large opening in the back that the manifold matches and the required safety late that goes between the manifold and the blower then gets opened to match.
     
    #13
    youngtuner, Jul 8, 2016
  14. Bad1969nova

    Bad1969nova Member

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    Thanks mike ill give them guys a shout!
     
    #14
    Bad1969nova, Jul 8, 2016
  15. kosky racing

    kosky racing Comp Eliminator

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    Grimes definately--I believe Brad now offers them.
     
    #15
    kosky racing, Jul 8, 2016
  16. Mike Canter

    Mike Canter Top Dragster
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    The modified manifold and plates sold at BAE are the Norm Grimes ones.
     
    #16
    Mike Canter, Jul 9, 2016
  17. kosky racing

    kosky racing Comp Eliminator

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    Mike I heard that Brad is now casting manifolds that way.
     
    #17
    kosky racing, Jul 9, 2016
  18. Mike Canter

    Mike Canter Top Dragster
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    Mike, that to me is a smart move. If it is better after it is modified then make them from the start that way.
     
    #18
    Mike Canter, Jul 9, 2016

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