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Compression ratio

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  • Compression ratio

    I thought I read somewhere that the 91 dohc engines had 9.25:1 Compression and the manuals came with 9.5:1 with 5 extra horseys .. so are they different engines in a way ?

  • #2
    If you think of it that way, year to year and some cases month to month they changed the LQ1. Oiling system, intake design, cam grinds, cam bolts, injector system, computer, damn near everything....especially with the 96-97 years.

    Lyle

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    • #3

      Read up.

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