Compression Test on an EFI 460

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05-05-2016, 11:59 AM

GuitarJesus

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Compression Test on an EFI 460

What numbers should I be seeing for an engine with good compression? 125psi 140psi?

Going to test later today and curious what numbers are in the "ok" to "good" range.

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05-05-2016, 07:28 PM

DeathRangerofDeath

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The absolute number isn't so much of a big deal as consistency is. They should be within 10 percent of each other.

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