[AEM]

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Have you ever made engine changes at the track and wished you had access to a dyno to see if they worked? Have you ever wondered where your racecar’s power went coming out of a turn, knowing there are too many variables to trace to root out the problem during competition? With AEM’s Dyno-Shaft on-vehicle dynamometer system you can finally stop trying to approximate real world test conditions and start testing in the real world! AEM’s Dyno-Shaft on-vehicle dynamometer system eliminates this guesswork by providing real, accurate Horsepower and Torque numbers that are produced by measuring a vehicle’s Torque and RPM at the driveline, while you drive!

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The Dyno-Shaft is a true on-vehicle dynamometer system that delivers Horsepower and Torque numbers as accurately as the most respected dynamometers, with the major advantage being that it measures power while the vehicle is under operation in real-world conditions. It is not an accelerometer-based system, so it will not skew readings due to uphill or downhill transitions, crosswinds, vehicle aerodynamics, wheel spin, vehicle weight or the myriad other factors that can affect the accuracy of GPS/accelerometer-based units. Instead, it measures a vehicle’s actual transmitted Torque and speed at the driveshaft, allowing it to record and output REAL Horsepower and Torque numbers.

HOW IT WORKS
AEM uses a set of laboratory-grade strain gauges inside of a supplied slip yoke to measure Torque at the driveshaft. Essentially, the Dyno-Shaft slip yoke becomes the sensor for measuring driveshaft Torque. This is combined with a driveshaft speed sensor to precisely measure the rotational speed of the yoke to determine RPM. The combination of real Torque and RPM readings allows the Dyno-Shaft to output Torque and Horsepower numbers as accurately as any dynamometer but in a more useful setting, and eliminates all of the inaccuracies associated with accelerometer based systems.

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