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G16a/b 16v Compression Test Results
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Author:  xchipx [ Mon Nov 05, 2012 12:59 pm ]
Post subject:  G16a/b 16v Compression Test Results

Stock UK g16a 16v sohc carburetor probably around 150k miles, standard engine.
Engine up to operating temperature
All other spark plugs replaced during each test
Throttle open
Compression ratio on this engine should be 9.5:1 .
However thats for the efi. engine, for the carbie im not sure if its a different comp ratio. And yes the heads are different.

189-180-180-181

Is this the sort of acceptable range of numbers you would expect ? Seems a little low? What are people seeing on their 16v g16s ?

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