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F22A1 and F22A6 camshaft specs

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    F22A1 and F22A6 camshaft specs

    As explained in a post I put up a few minutes ago, I purchased used F22A1 and F22A6 camshafts and degreed them.

    I degreed them on the head, not the block, but the results should be the same. I set the valve lash to zero, so all measurements are of actual valve lift, and I measured lift at the top of the valve retainer.

    Following are the valve lifts and duration that I measured. All durations are at 0.050" valve lift.
    ............................F22A1....F22A6
    Exhaust lift.............0.350"....0.365"
    Intake lift...............0.350"....0.365"
    Exhaust open BBC.....30..........36
    Exhaust close ATC....-18.........-18
    Intake open BTC.......-13........-13
    Intake close ABC........23.........29

    Calculated
    Exhaust duration......192........198
    Intake duration........190........196
    Exhaust center.........114........117
    Intake center...........108........111
    Lobe separation........111........114
    Advance....................3...........3
    Degrees overlap.......-31.........-31

    What I find interesting is that Honda chose to extend the duration (6 degrees) by increasing the intake/exhaust lobe separation. Exhaust close and intake opening, and hence valve overlap, are unchanged.

    Anyway, I hope someone finds these useful.

    #2
    i love information!

    and you have the bisi lvl 2 specs as well right? i'd like to see them side by side
    blackROSE Member, with a focus on VIP Style

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      #3
      New sticky coming soon? I think so! I been looking into a cam as well. I would like to know what's out there, I want to get maybe 300 out of my F22A1 someday. Would be kinda nice, even better without boost!
      The CB7 Collector.
      Team Kindred Impulse Member #3
      92 LX Coupe F22A1
      2013 Toyota Corolla S
      92 EX Sedan F22A1
      Originally posted by deevergote
      Do you really need to make a thread asking if having your car like this /---\ will cause uneven tire wear? Try walking like that for a few weeks and see if your shoes wear funny! (hint: they will.)

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        #4
        Stuck until we can integrate it into the useful info thread. Nice work!






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          #5
          i wish i knew what this info meant. cam specs is something that i always wanted to know about but can never find the time to "study" it :/
          FRIENDS
          DONT LET
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          ROTA'S

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            #6
            Here's the new bisimoto level2 specs
            Exhaust lift................. .403"
            Intake lift.................... .389"
            Exhaust open BBDC..... 41º
            Exhaust closes ATDC... 1º
            Intake opens BTDC....... 4º
            Intake closes ABDC...... 44º

            Calculated @.050"

            Exhaust duration.......... 222º
            Intake duration............. 228º
            Exhaust center............. 110º
            Intake center................ 110º
            Degrees overlap........... 5º

            MRT: http://www.cb7tuner.com/vbb/showthread.php?t=95154

            Comment


              #7
              Originally posted by mugencivic4dr View Post
              i wish i knew what this info meant. cam specs is something that i always wanted to know about but can never find the time to "study" it :/
              http://www.cb7tuner.com/vbb/showthread.php?t=197390

              You've been served....
              '94 JDM H22A: 178whp 146wtq

              Originally posted by deevergote
              If you say double dutch rudder, i'm banning you...

              Comment


                #8
                Originally posted by Joey GT-R View Post
                thank you for a good thread
                http://i220.photobucket.com/albums/d...82408002-1.jpg

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                  #9
                  Originally posted by jdm92_accorn View Post
                  Here's the new bisimoto level2 specs
                  Exhaust lift................. .403"
                  Intake lift.................... .389"
                  Exhaust open BBDC..... 41º
                  Exhaust closes ATDC... 1º
                  Intake opens BTDC....... 4º
                  Intake closes ABDC...... 44º

                  Calculated @.050"

                  Exhaust duration.......... 222º
                  Intake duration............. 228º
                  Exhaust center............. 110º
                  Intake center................ 110º
                  Degrees overlap........... 5º
                  Nice post. However, I think you mixed up the intake and exhaust lift.

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