Dyno question

[Comfort_Betrays]

Hey guys new here and not sure if this is the right place for this question. I had my car dyno'd a couple days ago to see what it put down. I did some data logs for my tuner during the pulls. On the dyno sheet is says max power was at 8400 rpms but my limiter is set at 7500 and my log says max rpm was 7200. Why the difference? Anyone ever experience this?

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[texasboy21]

Poor calibrated dyno/spreadsheet.

 

[Comfort_Betrays]

That’s what i was thinking. To me that would mean the power results weren’t accurate right?

 

[control4userguy]

Power will be overstated as RPM goes up. Just hand calculate one line of data and see if they used their number for RPM.

 

[ahl395]

Lots of dynos are like this. The RPM is inaccurate but the hp/tq numbers are correct.

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