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ls vtec compression

Discussion in 'Engine Building' started by xaero, Aug 1, 2004.

  1. xaero

    xaero Member

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    will a stock del sol piston that has 10.4:1 compression, change compression when i put it in an ls engine with a del sol vtec head?
     
  2. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    :yes:
     
  3. xaero

    xaero Member

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    how much will the compression change by with stock ls rods?
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  5. SAUSAGEPOT

    SAUSAGEPOT Junior Member

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    Using the C-speed racing Compression Calculator

    B18A/B 81.00 mm bore, 89.00 mm stroke
    B16A/B - B18C5 head 42.70 combustion chamber
    p30 (JDM B16A) pistons 6.93 Piston Dome Displacement (cc per piston)
    OEM 3-layer Headgasket Thickness 0.02900000
    Piston-to-Deck Height OEM B18A/B/C1/C5 - B20B/Z Height (in) 0.030
    RESULTS

    head B16A/B - B18C5
    compression 11.544785071271803
    Displacement 1834.6687456929157

    head B18C1
    compression 11.818402415705081
    Displacement 1834.6643456929155

    Here is an easier calculator to figure compression mix matching OEM parts.
    http://www.bojangs.com/calculator/ similar results not as detailed as C-speed's
     
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