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Thread: camshafts in dohc barra engine

  1. #1

    camshafts in dohc barra engine

    this has probable been asked before just looking for some information.on how hp tuner moves the cams
    is CAM by its self when logging intake and cam 2 exhaust
    how are the cams controlled as there is only one table for both cams.
    ba falcon as well as bf and fg cams.
    are both cams advanced and retard buy equal a mounts of w
    hat is commanded.
    -been retard
    and no symbol been advanced.have been told that hp works back to front
    just looking for some information if any one can in lighting
    thanks

  2. #2
    110 looks and not one comment
    good to see a forum thats about advise.
    we will play and see what happens
    thanks

  3. #3
    Advanced Tuner
    Join Date
    Feb 2010
    Location
    Perth Australia
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    480
    Depends on the model. BA they move together with Exhaust reference to Intake (ie the cam table alters intake)

    BF/FG there is a cam angle and offset table. The offset dictates the difference in angle between the leading cam (again intake) and the following cam IE cam angle of -36 is intake 36 deg advanced and an offset of 1 would put the exhaust cam at 37 deg advance.

    Negative value is advance is it referenced on crank and and TDC hence -36 is 36 deg before tdc and 36 is 36 deg after.
    04 Velocity MKII M6 & 06 BF F6 555 ZF6

  4. #4
    thanks bud i will have a look thanks for your help

  5. #5
    Tuner
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    Sep 2013
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    Sydney
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    Luke is this "VCT Angle Retard Limit vs RPM vs TP" the offset table in a BF? Why would it reference Throttle position rather then Load like the "VCT Angle" table?

  6. #6
    Advanced Tuner
    Join Date
    Feb 2010
    Location
    Perth Australia
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    480
    Pep,that's the max angle limit. No idea why ford reference against tps.