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Maximize the Life of Your Engine Dyno - Follow These 8 Steps

An engine dynamometer (dyno) is a major investment and if not maintained properly it can perform less effectively, especially when you’re testing to the dynamometer’s capacity. Learn eight ways to maximize the life of your engine dyno to help deliver the best overall value in the form of lower downtime, superior performance and higher return on investment.

1. Optimize discharge water temperatures
High discharge water temperature causes impurities to form on the rotors and stators within your dynamometer, preventing full displacement of water. This is usually caused when the dynamometer reaches a high discharge temperature, typically over 175°F (79°C). When this occurs, impurities from the water build up internally in the dynamometer and begin filling the voids that are used to create dynamometer load. As these pockets fill, the dynamometer begins to reduce the amount of load to your engine, in turn making your dynamometer perform less effectively.

2. Have your water tested and/or install a Water Treatment and Filtration System
Contact a local water treatment facility to test your water. You’ll receive information on your water quality and what steps are necessary to improve your water quality and minimize calcification and scale within your water system.  A Water Treatment and Filtration System is a synergistic, self-contained, chemical-free system that keeps your water and pipes clean. The system aids in removing the impurities by ionizing the water and collecting the sediment that can accumulate in the voids within the dynamometer. This system is a stand-alone product that includes a circulation pump separate from the water recirculation/cooling system. The Water Treatment and Filtration System will not interfere with the operation of your cooling tower.

3. Replace the packing on a regular basis to prevent poor sealing around the shaft
Packing material is used to maintain the water within the dynamometer. The packing requires replacing on a regular basis to prevent poor sealing around the shaft. The packing should always be moist. To maintain moisture, adjust the packing nut so...Click to read more >>


Project Solution Spotlight: 637 hp (474 kW), Oil Gap Cooled, AC Dynamometer Solution

We have created a test stand for the engineering development and testing of air turbine starters systems used in a variety of turbofan and turboshaft engine applications. It has the capability to emulate various inertia conditions so that the stand can be used with starters for multiple engine sizes/airframe applications.

This test stand called for demanding testing requirements for speed, power and inertia. To accomplish this, a custom 637 hp (474 kW), oil gap cooled, AC dynamometer solution that is capable of both over 1,625 lb-ft of torque and 12,700 rpm was designed. It features a holding brake that has the capability to index the starter in stall position and then seamlessly allow the unit under test (UUT) to accelerate. Also, as part of the unique customer lab space requirements, we co-located the control instrumentation and regenerative ac drive into a single enclosure, which made for a more compact and seamless installation.


  • 637 hp (474 kW), Oil Gap Cooled, 12,700 rpm, AC Dynamometer with Holding Brake
  • 1,625 lb-ft (2,203 Nm) of torque
  • Lubrication Pump Control System
  • Regenerative AC Drive
  • Inter-Loc V dynamometer controller included within AC Drive enclosure

To learn more about this and other custom testing solutions visit our custom testing solutions page or contact us to discuss your specific testing needs.


Optimize Your Testing Performance with Remanufacturing

Over the years, we have remanufactured hundreds of dynamometers and accessories and restored them to a “like-new” condition. Our proven remanufacturing capabilities provide quick turnaround on all dynamometer and component rebuilds as well as a variety of accessory overhauls and upgrades to help optimize your testing performance.

Our remanufacturing process includes:

  • Inspection of all components
  • Cleaning
  • Sandblasting (as required)
  • Balancing
  • Factory testing
  • Painting
  • Labor and all required parts
  • One-year warranty
  • Standard turnaround of 3 to 6 weeks

Aside from remanufaturing we also offer cost-effective upgrades, rebuilds and even stock a range of remanufactured dynamometers for sale.  Click to view some of our remanufactured inventory >>


Engine Builder Article on the Importance of Dyno Selection

Trying to select the appropriate Dynamometer? Read the Feb edition of Engine Builder Magazine on Dyno Decisions when determining which engine dyno type you need for your specific testing requirements. The article also stresses the importance of proper designing the test cell for the type of dynamometer you select. And lastly, it covers the 5 most common test cell blunders. Click to view the article >>



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Taylor Dynamometer | Dyne Systems