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compression

Discussion in 'General Tech and Maintenance' started by paki, Jul 2, 2004.

  1. paki

    paki Junior Member

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    what would the compression ratio be if u mate a y8 head on a y5 block. according to this link http://www.knology.net/~jediklc/D.htm the y5 pistons have a greater dish than the y8 pistons ( 0.58mm difference ) so i assume the compression ratio is likely to decrease. what i couldnt figure out is that by how much would it drop.

    thanx in advance.
     
  2. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    The compression would be lower than a Y8 (if the pistons have more dish), but it would still be higher than the stock Y5 because the combustion chambers in the Y8 head are smaller. I couldn't tell you exactly what the compression would be- find out the dish volume of the Y5 pistons along with their compression height, then run it all through the calculator again.
     
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