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Thread: cam shaft figures

  1. #1
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    Would like to know if some one could tell me the duration of these cams as i have been told two different things buy two people in the know. I dont know if one of them was having a bad day or what any help would be tops.

  2. #2
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    well... inlet appears to be 292 and exhaust 289 (rounded to nearest degree)

  3. #3
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    is that right as I've been told that it's 258 and 257

  4. #4
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    292/289 at Centre Line (rounded)

    or

    258/257 at .050 lift CL (rounded)

  5. #5
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    i relise that but which figure do you use when comparing to standard cams and after market cams such as ones from toda, hks.
    the difference between the 292/289 and 258/257 is huge and the higher figure not what i asked for.

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    Your cams are 258/257 in the normal figure. This duration number is the duration at a lift of 0.006" or greater.

    HKS/Tomei/Toda/etc should list what their duration is measured at but mostly this duration is measured when lift is 0.050" or greater. This figure for your cams are 218/218

  7. #7
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    thanks mate thats what I wanted to hear

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