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  1. #1
    Enthusiast
    Join Date
    Oct 2013
    Location
    Tampa / Kuwait
    Posts
    836

    Mystery cam, any ideas?

    I picked up a forged rotating assembly for my 2003 Viper and it came with a custom grind cam.

    Anyone able to decipher the specs? Would this be good for a blower cam or better for N/A abuse? I'm aware the factory rocker arm ratio is 1.7 but the specs are measured for 1.6 rockers.

    I contacted Comp Cams and they provided the Cam Card.

    ROCKER ARM RATIO INTAKE 1.60/EXHAUST 1.60.
    DURATION @ .050 INTAKE 224
    DURATION @ .050 EXHAUST 230
    VALVE ADJ INTAKE .000
    VALVE ADJ EXHAUST .000
    LOBE LIFT INTAKE .3590
    VALVE LIFT INTAKE .574
    LOBE LIFT EXHAUST .3560.
    VALVE LIFT EXHAUST .569
    LOBE SEPARATION 114.0
    DURATION .006
    INTAKE C/L 112.0
    TAPPET LIFT INTAKE 274
    CAM ADVANCE 2
    TAPPET LIFT EXHAUST 282
    HYDRAULIC Y
    VALVE TIMING .050
    OVERHEAD CAM N
    VALVE OPEN INTAKE 0
    JOURNAL DIAMETER STD 2.090
    VALVE OPEN EXHAUST 51
    RECOMMENDED VALVE SPRINGS
    VALVE CLOSED INTAKE 44
    DEPARTMENT P
    VALVE CLOSED EXHAUST 1-
    SPC INSTR FOR CUSTOMER


    Thank you.

  2. #2
    Tech Team

    Join Date
    Oct 2013
    Location
    Santa Monica Ca
    Posts
    819
    Looks like a good mild street cam.

  3. #3
    Since i just bought that cam do i need new valve springs?

  4. #4
    Quote Originally Posted by billseast View Post
    Since i just bought that cam do i need new valve springs?
    I would say so to be on the safe side. Fair bit of lift in that cam.

  5. #5
    Quote Originally Posted by Roddy View Post
    I would say so to be on the safe side. Fair bit of lift in that cam.
    I agree, if any age or miles on yours it's a LOT easier now and not that costly.

  6. #6
    I got better springs and the cam is installed. Just need to get the heads done.


 

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