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  1. #1
    Matatan tocullo's Avatar
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    Compression test!! What the heck..

    Now I'm confuse, I bought a new compression tool and I wasn't expecting this results. What you guys think?

    (1) 151
    (2) 150
    (3) 150

    What could cause the compression to be so high? Could it be a cheap tool? I got this one at advanced auto parts.


  2. #2
    83.0 @ 8400 jhill19's Avatar
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    That's what it should be from the factory. Was that on a hot or cold engine?

  3. #3
    Matatan tocullo's Avatar
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    Quote Originally Posted by jhill19 View Post
    That's what it should be from the factory. Was that on a hot or cold engine?
    Cold engine and untouched timing.

  4. #4
    monaroman76's Avatar
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    Your compression numbers are good.

  5. #5
    Stock pistons and cam?

  6. #6
    Matatan tocullo's Avatar
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    Quote Originally Posted by RXP6 View Post
    Stock pistons and cam?
    Yes sir , frank should I retard the timing a little or leave it alone?

  7. #7
    ADAMBOMB's Avatar
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    Quote Originally Posted by tocullo View Post
    Yes sir , frank should I retard the timing a little or leave it alone?
    Retard it, Retard

    Was anything done to your Head on the ski?

  8. #8
    Quote Originally Posted by tocullo View Post
    Yes sir , frank should I retard the timing a little or leave it alone?
    Yes, if you want more top end.

  9. #9
    Sturm215's Avatar
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    retard and pitch impeller accordingly.

  10. #10
    richrxp's Avatar
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    Just leave it this way,around 150 psi you'r good.
    Takes a lot of time to find the perect timing setting,i have done this, so i know what it takes to get perfect timing.
    Check if the crank and camshaft are spot on,if you have locking tools you can check this takes some time.
    I always make sure i'm spot on,and correct from there.
    Make sure to check if the crank locking tool is at the right position.
    You an do this by watching the hole were the tool goes in,this must be perfect round.
    If you see a half moon in the hole,you have to adjust to a perfect circle.
    Leave the camlocktool in,but loosen the 3 bolts on the camgear.
    Turn the supercharger until you'r spot on.
    Now you can adjust timing.

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