Quote:
Originally Posted by guybo
Dynos need to be calibrated and there are several variables that need to be calculated into the final numbers. Meet an average dyno tech and judge for yourself if he even knows what a calibration is, much less how its done. It is a precision instrument and when done right it can be very accurate but few techs or shops have the attention to detail to do it right IMHO.
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Even the best calibrated dyno will give different readings with different pulls. The very nature of the testing being done leaves it open to minor discrepancies which can be multiplied to major differences in the results.
Things can be made better by a truly great operator but there will still be variables.