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sohc zc vtec

Discussion in 'HYBRID -> ED-EF / DA' started by cavrx, Dec 15, 2004.

  1. cavrx

    cavrx Senior Member

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    i swapped a d16 z6 head onto my sohc zc block and now i get a slight valve knock under load situations. I had the head rebuilt before installation so all the parts are good i hope. I also just checked all the valve adjustments and timing adjustments. All is on time.
    I was told due to having the dohc zc pistons maybe the compression is to high for the octane we are so highly deprieved of.
    i also have a full msd set up with the ngk plugs. All else is good though she runs as strong as my boys b16a maybe a lil' better. very impressive for a sohc.
    Any info would be appreciated!!!!!
     
  2. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    It's probably detonation, not "valve knock". If you have the DOHC ZC pistons in there, your compression ratio will be around 12:1. Go get it tuned.
     
  3. Chilpyl

    Chilpyl Junior Member

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    Hey, sorry to steal your thread, but I have a few questions. I also have a SOHC ZC, and was thinking about doing the z6 head swap. Was it any different from doing the swap on a standard A6? Also, are you using the RPM switch, a feild controller? Thanks in advance.

    Chris
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Same thing- the SOHC ZC is the same as the A6 except for the cam.
     
  5. Chilpyl

    Chilpyl Junior Member

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    Awesome thanks
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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