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Thread: which cam to use?

  1. #1
    Junior Member APPRENTICE
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    which cam to use?

    I have 2 cams to choose from. wich one to prefer with 300-400 nitrous shot.

    1 cam:
    duration @.050 274/284
    .726/.736 lift with 1.7 rockers
    advertised duration 314/324

    2 cam:
    duration @.050 284/294
    .748/.748 lift with 1.7 rockers

    The engine:

    Merlin3 540 cid bbc
    Eagle crank and H-beam rods
    dart pro1 cnc 355 heads
    Super Victor Reher Morrisson intake
    Race Demon 1250 cc modified dominator carb
    Single stage fogger with controller
    Crane HI-8 ignition

    car weighs 2450 lbs with driver
    4link with 32/114/15 tires
    PG transmission with 1,69
    4.56 gears

  2. #2
    Senior Member RACING JUNKIE oldandtired's Avatar
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    Need the lobe centerline & seperation on the cams.
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triumph of evil is for good men to do nothing" Edmund Burke

  3. #3
    Senior Member RACING JUNKIE
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    Dang it,oldand tired beat me to it! He's right. The timing of the lobes are paramount on a NOS cam,more so than any other number.
    "The problem with quotes on the Internet is that you cannot confirm their validity"- Abraham Lincoln

  4. #4
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    114.0 both on first and 112.0 both on second

  5. #5
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    and compression is somewhere between 12.5 and 13

  6. #6
    Senior Member RACING JUNKIE oldandtired's Avatar
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    Toss up, I wish the second cam had the 114. Dave
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triumph of evil is for good men to do nothing" Edmund Burke

  7. #7
    Junior Member APPRENTICE
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    ok. but what should i order then? have any recommendations?

  8. #8
    Senior Member RACING JUNKIE oldandtired's Avatar
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    Personally I would go with cam #1. You can always move up as you have the compression ratio to support either cam.
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triumph of evil is for good men to do nothing" Edmund Burke

  9. #9
    Senior Member SENIOR BUILDER
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    like #1 as well

  10. #10
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    Thanx guys!
    Comp cams suggested this on. I think i will go with my old no 1 cam for this year and next year will order a new one:


    Duration @ .050 282/298
    Lift with 1. Rockers .806/.758
    LSA 114


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