Compression test

[Sighlense]

I plan on doing one this weekend. Anyone know what the max % spread is between low and high for the 2015 GT? Watched a video of one done on the GT350 and it said no more than 20% max. Different engine so i assume it is different for mine. Or perhaps what number (single cylinder) would be cause for concern?

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[engineermike]

Ive done many compression tests and 20% is high. 9 times out of 10, the difference is obvious and needs no tolerance.

 

[Sighlense]

Ye

Ive done many compression tests and 20% is high. 9 times out of 10, the difference is obvious and needs no tolerance.

Yeah, he said 20% was high(max), but within the acceptable zone. His tested at around 5% which was is very sound.

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