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Proper Compression #'s???

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  • #1

    Proper Compression #'s???

    what is the proper compression on the 3.4L DOHC?

    gonna check for compression tommarow, Just curious as to what the compression spec's should be?

    Thanks
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  • #2
    Usually anything above 150 is ok. You want the numbers to be within 10% between all cylinders. So if your lowest cylinder was 150psi, then you shouldn't have any cylinder higher than 165psi.
    -Brad-
    89 Mustang : Future 60V6 Power
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    Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog

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    • #3
      cool, thanks man!
      Shane "RedZMonte"
      2004 Corvette Z06 Commemorative Edition -VIRGIN
      1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
      -Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
      2004 Subaru WRX STI -Lightly Modded (SOLD)
      1994 Lumina Z34 -VIRGIN (SOLD)
      1992 Lumina Z34-VIRGIN (RIP)
      1992 L67 Lumina Z34 (SOLD)
      1990 Turbo Grand Prix (SOLD)

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      • #4
        they should run about 170-190 psi
        Lorenzo
        '11 DODGE Challenger R/ T Classic 57M6 Green with Envy "Giant Green Squid"
        '92 PONTIAC Grand Prix SE 34TDCM5 "Red Lobster"

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