Camshaft selection?

Discussion in 'PSI Superchargers Tech Questions' started by hotrod200, Nov 21, 2014.

  1. hotrod200

    hotrod200 Member

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    Hi,
    I am having a new cam ground for my 443 early Hemi 4.125 bore 4.150 stroke, I have a std 671 with Teflon seals 10 over, going to run 10:5:1 with an .080 gasket so I can always go to a .040 if need be. I currently have a two speed lenco with a 34% first, 10 inch pedal clutch, 4:57 gears and want to run a 34x15x16 tyre.
    It is a 103 inch altered. I plan to have this in my altered while building a front engine dragster. Anyways currently looking at a cam with 286 duration, 114 lobe centers and .680 net lift... I know the setup is not ideal I am considering a 3 speed and help the clutch out and wheel speed... But also keeping in mind that I was trying to keep things from being to aggressive as the wheelbase is short and I want to run 7.50 in this setup and when in the front engine break the 7.0 so 6.99 or better and 200mph.
    Anyways I'd really like to hear your thoughts, ideas or experiences... Split profiles, etc....
     
    #1
  2. weekend warriors

    weekend warriors New Member

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    Call Jonathan at PRP! He's awesome and can get you dialed in. He may even have the cam you need. 978-423-5881 Good luck!
     
    #2
  3. Creech

    Creech Member

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    Running a 471ci AJ 481X with a whipple at at lower RPM (around 9000 I guess ) these guys put a 286 in 278 ex @ .050 110 lobe separation in @ 106 intake centerline ( thats 37 btdc .050 intake open ). Not only did it work good down low the whole motor and car came around: thats before it crashed.
    https://www.youtube.com/watch?v=RoX-scOdzOE&list=UU1ptu2qoCm2sMnQmD5IiZew

    Marty
     
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    Last edited: Dec 3, 2014

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