High Helix Hat Fuel Distribution

Discussion in 'PSI Superchargers Tech Questions' started by SoDak, Nov 16, 2010.

  1. SoDak

    SoDak Active Member

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    Have you ever seen a correlation between the hat nozzle jet placement and cylinder richness?

    another way to say it is:
    If your rear hat nozzle jets are 55's (the ones in the blower housing) and the front hat nozzle jets (the ones in the injection hat) are 45's, now swap them so the rears are now smaller, will this change the fuel distribution at the cylinders?

    Or do they all get mixed so well in the blower that it doesn't matter?
     
    #1
    SoDak, Nov 16, 2010
  2. john348

    john348 Top Alcohol

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    Not sure on yours but i would not do it!
    The 55's are in the rear to cool and seal rotors, it may get hot if you move it to the front

    and to answer this question
    Have you ever seen a correlation between the hat nozzle jet placement and cylinder richness?

    YES
     
    #2
    john348, Nov 16, 2010
  3. craig moss

    craig moss Member

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    The air/fuel all comes out the delta/retro opening in the front at an angel I cant see where it would fatten a rear cylinder. Time for ports ?
     
    #3
    craig moss, Nov 16, 2010
  4. Mike Canter

    Mike Canter Top Dragster
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    I agree with Craig. The air is pushed back on the top of the rotors then down the ouside of the rotors then forward where it is combined to go out the pie shaped opening at a real steep angle of about 45* then it hits the front of the manifold and is then turned 180* and pushed to the back of the manifold. The fuel mixture is total beat bent and mixed before it gets into the intake runners. There is no way that there can be any correlation between the two.
     
    #4
    Mike Canter, Nov 16, 2010
  5. Jp outlaw

    Jp outlaw New Member

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    larger nozzles at the back to help cool the blower; as far as distribution is concerned, everything is going in at the front.
     
    #5
    Jp outlaw, Nov 19, 2010
  6. Sandman

    Sandman New Member

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    I just bought a delta opening 8.71 for my sbc. Do I need to run port nozzles, or am I still able to run hat nozzles only and be able to get reasonable fuel mixtures from front to back?
     
    #6
    Sandman, Dec 30, 2010
  7. tj1471

    tj1471 New Member

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    Port Nozzles

    I would run port nozzles it will help you balence the cylinder temps out. TJ
     
    #7
    tj1471, Dec 31, 2010

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