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4AGZE Compresion test numbers??


B18civic

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Factory compression test specs for the 9.4:1 ratio bigport 4age are 179psi down to a min of 142psi with no more than 14psi difference between cylinders. I'd expect your 8.0:1 bigport 4agze to read a lot lower than 180psi with a normal compression test, somewhere closer to 160psi would indicate a very healthy engine.

Edited by CHA54
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