Compression Test Numbers
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From: Elk Grove, Ca.
Compression Test Numbers
From the Factory Mazda Miata Manual:
Compression:
192psi @ 300 rpms (new)
Minimum:
135psi @ 300 rpms
Differential limit between cylinders:
28psi
Compression:
192psi @ 300 rpms (new)
Minimum:
135psi @ 300 rpms
Differential limit between cylinders:
28psi
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so what if its higher? I got 210 on all cylinders after a rebuild a couple thousand miles after first start. the test was done warmed up, all plugs out, Fuel injectors disconnected. I need to retest now that ive got about 5-6k on the motor.
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