The 250i Load Control System was developed through years of experience with over 6,000 dynamometer installations world wide. The design is easy to operate and provide the function of steady state load control. Dynojet's Load Control System uses the latest in Eddy Current Power Absorption technology, which combines with our easy to use software, so any technician can get repeatable, consistent results. The Load Control software provides the technician with the ability to control vehicle RPM or Speed at any throttle opening. Through our exclusive closed-loop software design, the vehicle is automatically held at your pre-determined setting.

Above Ground Standard Features And Equipment

Pit Model Standard Features And Equipment

**Certain international distributors may offer two year replacement parts warranties

Dynamometer Specifications Information

Below is a list of the Dynamometer specifications. In addition, you can download a pdf specs. document from below. For additional specifications related questions, please give us a call at: 800-992-3525.

Pre-installation Guide
Above Ground Install Guide
Pit Install Guide
Maximum Horsepower / Torque
750 hp / 750 ft lbs
Maximum Speed
200 Mph / 322 Kph
Drum Diameter
18 in / 45.72 cm 
Drum Width 
16.37 inch / 41.59 cm
Maximum Axle Weight
Standard Carriage Wheelbase Minimum
66in / 167cm
Standard Carriage Wheelbase Maximum
84in / 213cm
Extended Carriage Wheelbase Mimimum
83in / 210cm*
Extended Carriage Wheelbase Maximum
101in / 256cm*
Air Requirements
100 psi
Operating Temp Range
32 to 158 degrees F / 0 to 70 C
Timing Accuracy
+/-1 microsecond
Drum Speed Accuracy
+/-1/100th Mph
RPM Accuracy
+/-1/10th RPM
* Extended Carriage is Optional

Shop Requirements for Dynamometer

Dynamometer Options and Upgrades

H-D Fuel Tap Dynojet’s H-D Fuel Tap is a system for fuel injected Harley-Davidson motorcycles designed to measure and synchronize fuel pressure readings with other data while conducting dyno tests. Utilizes a precision 0-100 psi pressure transducer and quick disconnects for fast, easy installation and accurate results. Stop tuning around a “problem area” and ensure the fuel system is performing as designed. *Requires Power Vision
Eddy Current
Eddy Current Load Absorption Unit Allows load testing by close-looping on rpm, speed or percentage of load. (Included on 250i/250ix series models).
Dynamometer pit covers
X Upgrade Allows dyno to additionally accommodate most other powersports platforms (ATV’s, Side-by-Sides, Go-Karts, and Trikes). Standard feature on “x” model powersports dynamometers.
Dynamometer pit covers
Extended Carriage Option Accommodates 102” wheelbase measured from rear axle to front tire.
Dynamometer pit covers
AFR-2 (Dual AFR Monitor) Measures real-time air/fuel ratios with integrated high-flow “pump” inside dyno (requires shop air).
Dynamometer pit covers
Stealth Extraction Interface Kit Includes professional grade Riv-Nut tool, drill bit, and enough hardware to sample up to 25 bikes! (Includes bolts, washers, Riv-Nuts, specialty bolts, and billet manifold interfaces.) Recommended to be used with Dynojet Gen4 Exhaust Gas Pump.
Dynamometer pit covers
Stealth Extraction Interface Kit (No Riv-Nut Tool) Includes drill bit, bolts, washers, Riv-Nuts, specialty bolts, and billet manifold interfaces.
Dynamometer pit covers
Torque Cell Module Measures real-time torque, and allows sweep, step and custom load simulation tests.
Dynamometer pit covers
Dual Cooling Fan System Integrated cooling fans with adjustable arms. 1,800 CFM each fan.
Dynamometer pit covers
Monitor Tray Bolts onto the control panel arm and holds the monitor, keyboard and mouse.
Folding Ramp
Primary Folding Ramp Gas strut assisted folding ramp bolts directly to the dynamometer.
Folding Ramp
Secondary Folding Ramp Supplemental ramp for “x” model dynos (both ramps required).
Dynamometer pit covers
Power Wheel Clamp Motor driven wheel clamp controlled through the control panel for securing front wheel without stepping off the motorcycle.
Dynamometer pit covers
Power Carriage Motor driven carriage controlled from control panel for adjusting wheelbase without stepping off the motorcycle.
Dynamometer pit covers
Air Brake Air actuated disk brake used for slowing drum. *not necessary with 250i series dynos*.
Dynamometer pit covers
Analog Channel Accessories Analog Channel Accessories Analog Sensor Cable Kit (Used for connecting customer supplied 0-5v sensors to DynoWare RT Main Control Module – includes 4 harness kits).
Optional Harnesses:
0-50psi Absolute Pressure Sensor
0-100psi Relative Pressure Sensor
Dynamometer pit covers
IR-Temp Sensor Kit Includes 1 0-500F sensor, magnetic base and mounting stand.
Dynamometer pit covers
HD Data Link Connect any Delphi equipped Harley-Davidson® (CAN & J1850) to DynoWare RT to read and sample live data direct from the bike! Whether you are making EFI calibrations, diagnosing a problem or simply getting a horsepower reading, the HD Data Link gives you more data such as volumetric efficiency, spark advance, cylinder temp, and more.
Dynamometer pit covers
O2 Sensor Kit Includes one wideband O2 sensor with harness for use with AFR-2 for dual air/fuel readings. Available in a 6ft or 12 ft harness length.
Remote Atmospheric Sensor
Remote Atmospheric Sensor (20ft) One atmospheric sensor for use with second atmos channel for reading conditions at air box, intake, etc.
RPM Lead Kit
Inductive RPM Connection Kit This new harness kit aids dyno operators in establishing engine RPM signals with select motorcycles. Each harness uses OEM style connectors, plugs in-line with the stock ignition system, and the non-loomed wiring makes it easy for the Dynojet Inductive RPM to clamp onto. Works with several motorcycles: Denso coil ignitions, Ducati, KTM, Polaris, Can-Am, BMW, Aprilia and Harley Davidson.
Dynamometer pit covers
Dynojet Certified Custom Tuning Training The Power Commander and Power Vision tuning courses certifies Dynamometer owners as “Dynojet Approved Power Commander Tuning Centers” and/or "Certified Power Vision Tuning Centers." The certification course is a 3 day training course held at Dynojet Research Inc. in Las Vegas, Nevada. The course consists of hands-on dyno training as well as classroom time. Upon completion, "Dynojet Approved Power Commander Tuning Centers" and "Certified Power Vision Tuners" are listed online and are the only Dynojet approved tuning centers for customers seeking custom Power Commander or Power Vision tunes created on a Dynojet dynamometer.

Fatboy Adapter Necessary for securing motorcycles with solid or heavily spoked front wheels *not needed with Power Wheel clamp*.

Equipment Lease Options

Dynojet offers competitive and affordable lease-purchase options through programs that are provided by third party Equipment Leasing Partners. Over the years we have developed strong relationships with our vendors and trust in their abilities to provide prompt service, and ‘best in the business’ lease rates for our dyno customers. We have long term partnerships with lease vendors who can facilitate lease/finance programs for all types of buyers – whether you’re a new start-up performance shop or a multi-line dealership.

Our Leasing companies are quick to respond to your needs, and after receiving your basic one-page application, you can expect an offer put together for your lease within 24 hours, many times the same day! Most of our Leases are structured with a $1 buy-out (some states are restricted to a slightly different term) and this makes Leasing your dyno even more attractive.

Equipment Leasing offers several key advantages to a conventional bank loan or standard financing. Here are a few of the key advantages:

  • Tax advantages including easy to implement deductions, and leasing may help you to avoid the Alternative Minimum Tax. A larger deduction, would be more cash in your pocket! Thus reducing the true cost of leasing.
  • No down payment or low down payment. Leases can be structured with very little down, or nothing down, upon approved credit.
  • Some leases can be structured to fit your cash flow needs, such as Seasonal Payment packages, whereby your payments will be higher during your peak earning months (summer) and then lower in the Off-Season (winter).
  • Secure 100% financing, Plus ‘soft costs’ such as computers, installation, shipping, taxes, etc. Usually up to a 10% addition to the primary dyno cost.
  • Conserves capital and credit. This frees up your funds for any immediate needs that may arise such as payroll, or quick capital purchases that may arise.
  • Leasing can offer longer terms than a conventional loan, thus lowering your monthly payment. We currently offer as long as 72 months, in some cases.
  • Hedge against inflation. Your payment will remain the same, for the term of the lease, even if the buying power of the dollar fluctuates.
  • Quick and efficient, as there is very little paperwork for most deals under $50,000, and you will have an offer within 24 hours, most on the same day!

A final thought on leasing - We have done the shopping around for you and our Lease Partners offer the best rates in the leasing business, with a commitment to honesty and integrity.

Some of our customers have procured their own financing and leasing and we do welcome that, however we would caution you to investigate any company that may be offering you a deal that is simply ‘too good to be true’. We recommend a simple Better Business Bureau search, before you sign any documents or send any payments into a funding source that might be questionable.

Leasing or Buying Questions

For more information, contact our Dynamometer Sales Department US toll free: 1-800-992-3525. Locally: 702-399-1423. Optionally, you can send us a quick email using the following contact form: click here to access.

Dynamometer Sales Information

Please provide enough information regarding any sales/tech. inquiries so that our team can provide a detail response to your inquiry. Click on the following link to download our Equipment Lease Application.

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Physical Address:
Dynojet Research Inc.
2191 Mendenhall Drive
North Las Vegas, NV 89081 (USA)
Local Telephone # :
Toll Free:
800-992-3525 (USA only)