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Compression numbers Ross 8.5:1

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talonpower

20+ Year Contributor
52
0
Mar 31, 2003
Just did a compression test yesterday ...

Ross 8.5:1, Mitsu 3 layer HG, head recently resurfaced etc

its a magnus stage 2 motor with about 8k on it


Cyl 1 Cyl 2 Cyl 3 Cyl 4
178 167 176 176


are these numbers "excellant" or "good" .... i know the 10 psi difference isnt huge but what if any difference in performance would this make and is this something i should be worried about??? again, the motor is basically brand new so i was hoping for very close to identical numbers in all cylinders

thanks
 
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