My Vtec Gives Hugs mmmbah
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You happen to know what dyno this is being performed on? It's a dynojet, that's obvious. But the new 224 and 424 models readout a lot differently than the old 248c I'm using for testing.
The 248c I'm using is upgraded with more ballast weight to increase the inertial loads required to turn the roller. It uses a 4' roller instead of the 2' rollers the newer ones use.
That being said, these new dynos don't read quite the same as the old ones. I was told by Dynojet that the upgraded 248c with the added ballast weight could deviate results as much as 5% from other units, but run-to-run consistencies would remain within the advertised accuracy.