Status Update

March 30, 2020

The leadership team at SuperFlow realizes that we are facing a very unique situation with the COVID-19 virus. We want to reiterate that our focus is on our loyal Customers, our dedicated employees, and our communities at large.

The experts have painted a sobering picture for our nation. We are sure this is true for where ever you are located and reading this. We want to make it clear that SuperFlow is committed to “flattening the curve” and doing our part to overcome this global crisis.

With that said, our Colorado Springs office remains open in accordance with Colorado's 'Shelter in Place' orders. We will continue to do everything possible, within prevailing safe practices, to ensure our customers receive high-quality products and the level of technical service and support that they require.

Here are the steps we've taken to support our Customers, Employees and Communities during these times:

  • We moved about 90% of our Office, Sales and Service staff to remote working situations
  • The company has been divided into distinct groups to ensure business continuity
  • These groups are working out of self-contained areas and are divided by a 30-minute break between shifts to clean and sanitize our work spaces.
  • Financially, we have a company record backlog that we will continue to work on through August of this year. Leadtimes will continue to come down, quality will be a focus and capacity will open, especially for the 3rd and 4th quarters

Power Test, the parent company of SuperFlow, has been through three major economic dips in the last 19 years and keeps coming out stronger because we developed and executed our strategic and tactical plans. This situation will be no different. We thank you for choosing the Power Test family of brands: Super Flow, Pivotal Pumps, AIDCO, Stuska, Axiline, Hicklin, and TCRS. Please contact your Sales or Service representative if you have any questions or concerns.


Rick Ruzga


Engine Dynamometers

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Prove it with the SF-4000HD, SuperFlow’s first 4000HP engine dynamometer.

Prove it with the SF-4000HD, SuperFlow’s first 4000HP engine dynamometer. We’ve listened to our customers who have asked repeatedly over the years for a test stand that could compete with the rising horsepower of today’s engines. Through advanced in-house engineering, design, fabrication, and production, SuperFlow has delivered the industry’s first complete testing solutions for high horsepower engines.

The SF-4000HD dynamometer system has been developed for customers that require an affordable solution for testing high speed diesel, gasoline, and alternative fuel engines. With a new stronger dyno shaft (w/splined coupler), a rigid, robust frame design, and a water brake based on the legendary SuperFlow design, SF-4000HD provides reliable testing for 4000HP engines at speeds up to 12,000 RPM. The larger pump and water circuits handle the increased water needed to load even the largest of power engines. Bigger bearings, new high RPM seals, easy access servicing, and plenty of other features helps this dyno set the standard for excellence in high horsepower testing.

Complete with WinDyn Data Acquisition & Control Software and utilizing a Stuska XS-211-HD water brake, the SF-4000HD makes testing easier than ever before. With one system, direct from one supplier, modernize your testing capabilities and completely transform your shop. Where the other dynos begin to fail, the SF-4000HD is just getting started.

Product Specifications

Standard Configuration
Temperature 16-channel thermocouple panel
12 closed tip thermocouples, 1/8″
12 swagelock fittings
12 ten foot extension cables
Pressure 10-channel pressure panel
3 transducers (-15 to 150 psi)
Air / Fuel 2 pre-configured analog inputs
Fuel Flow 2 fuel flow measurement turbines
Air Flow 1 air flow measurement turbine


Absorber Type Water brake
Maximum Speed 12,000 RPM
Horsepower Capacity 4,000 hp (2,237 kW)
Torque Capacity 2,626 lb.-ft (3,390 Nm)

Data Acquisition & Control


Contact Us

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