Choosing the right engine dynamometer involves determining testing needs and engine type. The dyno must be able to handle torque and power levels, and have a sophisticated computer interface. Commercial engines require specific size and weight parameters and software calibration.
Choosing the best engine dynamometer, also called a dynamometer, is a process of determining exactly what your engine testing needs are and how often you expect to test the performance of engines short-term, long-term, and on an ongoing basis. To choose the best instrument, decide what type of engine the engine dynamometer will test and find the one that best facilitates those testing requirements. Be sure to account for the size, weight, and performance level of those motors. It is also important to note that an engine dyno is different than a chassis dyno in that an engine dyno is intended to test and tune engines in a stand-alone capacity.
The first important consideration is what kind of engines you plan to test. For common stock car and truck engines, you’ll need an engine dynamometer that can test power and torque curves to regular tolerances between 1,000 and 8,000 RPM. An automotive service shop that does engine rebuild work would want to make sure that an engine dynamometer facilitates this above all other attributes.
An engine dynamometer will also require a fairly sophisticated computer interface to handle all the analysis and display, in real time, all the data during engine testing. This aspect typically requires a state of the art engine dynamometer to be placed in an indoor environment, free from the ravages of inclement weather. That being the case, of course, an engine dynamometer must have apparatus sufficient to expel exhaust gases released by the engine during operation of the dynamometer.
For service shops running high-output engines for race cars, trucks, or boats, the engine dyno must be capable of handling a large amount of torque at all points of the test engine’s power band. This will require the engine dynamometer to be precision manufactured using high quality alloys and industrial strength components. The dyno must be capable of handling an engine that will generate more than 1,000 pound-feet (approximately 1,356 newton meters) of torque and horsepower at RPMs that will exceed 10,000 pound-feet (approximately 13,558 newton meters).
To service commercial-grade engines, a dynamometer must also be capable of handling a high level of torque and power, but you’ll also need to have the software for such tests. It will also need to be properly calibrated to test the performance of diesel engines. Additionally, for commercial engines intended for towing, towing, or industrial applications, specific size and weight parameters will be required in order to successfully test these types of engines; any dyno will be larger and therefore should take up more space in a shop.
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