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If I have the specifications for cylinder compression can I convert that to how much intake vacuum the engine should be pulling?

For example, if I have a 4 cylinder engine that is supposed to have about 180psi per cylinder can I convert that to an expected inches of mercury ( vacuum )?

Robert S. Barnes
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1 Answers1

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As far as I'm aware, it cannot be done. Vacuum is a direct relation to valve lift and timing, does not relate to compression ratio. The vacuum is drawn during the intake stroke. In a 4-stroke (cycle) engine, the intake and compression events are completely separate.

Pᴀᴜʟsᴛᴇʀ2
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