Dyno Jet/Mustang Dyno

[HotRoddin]

Originally Posted by Jeff Chambers

How does one know that the Dynojet isn't reading falsely high? Ask MD to explain how TQ/HP are measured on their machine then ask the same of Dynojet. You'll get two completely different answers, and two answers that says the 'other guy' is wrong.

That is mind boggling to me. I know only the basics of dynos, but every other measuring instrument known to man has some point of reference that it's measurement is based on ... any micrometer can be checked with a precision machined block, traceable back to a standard ... torque wrenches, even cheap ones, have to have some degree of measurable accuracy. 1 HP is a measurable thing, tracable back to a highly accurate standard, it's not some arbitrary number that someone sets where ever he feels it should be ??? What am I missing here ? How can these machines read something totally different, measuring the same thing.
Websters definition of measure ......
Dimensions, quantity, or capacity as ascertained by comparison with a standard.

Please somebody enlighten me here.