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Originally Posted by hotrod
If I had the money you could also use the same concept to do the same thing in real time. Put a pressure transducer in the right front motor mount and a second transducer with a free weight on it near by. subtract the vertical enertial signal from the free weight from the signal generated by engine torque loading of the right front motor mount. Poof instant real time engine dyno.
In concept it is trivial, if it would work in the real world is another question. It is essentailly what a chassis dyno does anyway so the hardware should already exist. Larry
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That's a novel concept, and a very interesting idea. It might be doable with a horizontal boxer 4 engine. Extraneous vertical accelerations should be absent. Don't know if it would work with a convential straight 4 cylinder engine, since there is a net upward force from the rotating parts. That's why a balance shaft is required to counter-act the extra upward acceleration forces. A transducer system that requires measuring the vertical force component might be fooled.