SF-902S Engine Dynamometer


The SF-902S engine dyno houses a new absorber designed for high RPM and maximum durability. It’s rated for 15,000 RPM, 1,500 HP and 1,200 lb.-ft of torque. PTFE teflon water seals and high speed ABEC 7 bearings allow the new absorber to run at high RPM for extended testing periods without issue. The new stainless steel trunnion and backing plate provide a 75% increase in resistance to cavitations compared to previous aluminum bronze components. In addition to the new water seals, high speed bearings and stainless steel components the new absorber in the SF-902S dynamometer includes a hall effect speed sensor for greatly improved low speed RPM measurement.

The included roll-around engine docking cart offers great versatility to adapt to various types of engines and its stainless steel runners mean easy adjustment of the engine supports without any rust. It’s also compatible with the SF-Powermark to allow maximum versatility. The space saving dynamometer frame provides a convenient tool tray and two bump starters to make lashing valves easy. Adaptation to the engine is simple with the optional multi-fit bell housing or the adapter of your choice. To keep the test cell neat, the integrated boom assembly houses both the sensor box and cooling tower, plus it has cable stays to route transducer wires cleanly between the sensor box and the engine. The included non-pressurized cooling tower mounts to the boom assembly behind the dyno, out of the way. The new sensor box also mounts to the boom where it is kept safely away from engine vibrations and heat. WinDyn’s® pre-defined test sequences allow for standard tests at the push of a button so you’re up and running immediately and the live trace feature lets you see live data as a trace over a saved reference plot.

Thinking about purchasing an engine dyno? Download: How to Select the Proper Engine Dyno

Data Acquisition

WinDyn 4.0 ED

SuperFlow’s WinDyn® 4.0 Software is the most feature-rich system available for dynamometers today. We’ve included all the tools you need to make a SuperFlow® dynamometer a successful piece of your business. WinDyn® is preconfigured with industry standard tests to get you up and running quickly. But, we didn’t stop there… We’ve also developed powerful configuration and test editors that offer you complete, customized control of the dynamometer, the test cell and the tests you’re running.

WinDyn 4.0 ED image

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Sensor Box

The SuperFlow sensor box is the brain of the 139 channel WinDyn data acquisition system. Its advanced electronics measures high-resolution data at up to 2,500 Hz depending on the channel and sends the data to the operator station via a simple Ethernet connection for live monitoring.

Sensor Box image

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Control Console

SuperFlow Engine Dyno Console

SuperFlow engine dynos come standard with a purpose built operator station that include a control console to control tests, control engines and control the entire test cell from one console. A throttle cable, computer with two 22 in. LCD monitors and an operator table that seamlessly integrates each part of the system round out the setup. 

Control Console image

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Product Specifications

Absorber Type Water brake power absorber with Teflon water seals, high speed bearings, stainless trunnion and backing plate and aluminum bronze rotor - low inertia design for precise control
Maximum Speed 15,000 RPM
Horsepower Capacity 1,500 hp (1,119 kW)
Torque Capacity 1,200 lb-ft. (1,627 N-m)
Temperature 16-Channel thermocouple panel 12 transducers, 1/8" 12 swagelock fittings 12 ten foot extension cables
Pressure 10-channel pressure panel 3 sensors (-15 to 150 psi)
Air / Fuel 2 pre-configured analog inputs
Fuel Flow 2 fuel flow measurement turbines (0-80 gal/hr)
Air Flow 1 air flow measurement turbine (9 in. air turbine standard, 20-1,200 CFM) (4 in. and 6 in. sizes also available)

Product Options

Additional Docking Cart

Additional Docking Cart image

Extra docking cart to save time between engine tests. Pre-stage one engine while another is being tested.

Air Fuel Kit

Air Fuel Kit image

Air Fuel Meter Kits available in any channel count configuration. Bosch LSU 4.2 and OEM grade NTK type sensors available.

Analog Panel

Analog Panel image

8 channel analog panel to integrate exhaust gas analyzers lambda sensors, O2 sensors, etc. Select 0-1V, 0-5V, 0-10V, 0-20V or 0-30V in any combination.

Blow-By Sensor

Blow-By Sensor image

Measures the volumetric flow of crankcase blow-by. Two sizes available: 0.4 to 16 ACFM and .25 to 10 ACFM. Select either analog or frequency output.

CT-700 Pressurized Cooling Tower

CT-700 Pressurized Cooling Tower image

CT-700 Pressurized Cooling tower integrates seamlessly with boom assembly. Standard temperature range from 160 F to 230 F. Rated for continuous duty testing up to 700 HP (522 kW)

Engine Adapter

Engine Adapter image

Multi-fit adapter packages for the SF-902S, SF-Powermark and SF-BlackWidow. Multi-fit Bell Housing pictured for SF-902S. Universal Engine Mounting Kit available for SF-Powermark and SF-BlackWidow.

Fuel Canister

Fuel Canister image

Designed to measure fuel consumption of fuel injected engines. Mid flow unit available in 20-270 lb./hr. High flow unit available in 30-1070 lb./hr. Available for gas and alcohol.

Fuel System

Fuel System image

High performance fuel pump and two fuel regulators. Rated at 0-800 lb/hr.

Pressure Sensor Expansion Panels

Pressure Sensor Expansion Panels image

The modular sensor box allows for additional 10-channel pressure panels and additional 16-channel temperature panels. Extra transducers are sold separately.

Relay Box

Relay Box image

Relay enclosure for up to 32 programmable user-defined relays. Commonly used to control lights, pumps, water systems, emergency stop and fire safety systems.


SuperStart image

Starter option for the SF-902S includes 8” spacer box and 2 hight torque starters.

Temperature Sensor Expansion Kits

Temperature Sensor Expansion Kits image
Expand your sensor box with a 16-channel thermocouple panel for Type K, Type J or Type T thermocouples. Monitor oil and water temperatures live in our WinDyn software then save the data for easy post test graphing and analysis.

Throttle Actuator

Throttle Actuator image

Rotary electric throttle control provides automated testing from computer. Morse cable options also available.