Single-axle (to 700+ Hp**) bus and truck chassis kits include 24" medium-inertia dual-roller assembly, removable roller shield, drive-up ramps, wheel chocks, casters, water or eddy-current absorber with step-up drive, electronic torque transducer, DYNOmite data-acquisition computer, AC power supply, Electronic Auto-Load Control, DYNO-MAX™ software, inductive RPM pick-up, required hoses, engine temperature thermistor, and full-function data harness.  (Optional tandem and tri-axle upgrade, with dual eddy-current absorbers and an electrically adjustable wheelbase system, is shown in the image above.)

Multi-axle truck (to 2,500+ Hp**) Pro chassis kits include tandem-axle (optional tri-axle upgrade shown below) tube-steel frame with 24", 30", 44", or 60" diameter medium-inertia rolls, bolt-on diamond plate decking, floor anchors, wheel chocks, vehicle tie downs, water or eddy-current absorber(s) with step-up drive, electronic torque transducer, DYNOmite 28-channel data-acquisition computer, inductive RPM pick-up, DYNO-MAX “Pro” software, printer, Windows-7® equipped Dell™ laptop, mobile computer stand, Electronic Auto-Load Control, Weather Station Kit, A/F Ratio module, 42" high-volume cooling fan, hoses, engine temperature thermistor, and full-function data harness.

DYNO-MAX™ “Pro” Software creates a full vehicle dashboard on your PC. Features include: real-time trace graph display, adjustable limit warnings, pushbutton controls, user configurable analog and digital gauge ranges, color graphing, test report database, instant playback, inertia compensation, “Smart Record™” trigger points, adjustable data dampening, full data import/export, semi-automatic zeroing, voice alarms, wireless Pocket DYNO-MAX™ interface, etc. (Click for full list of features.)

DYNOmite Data-Acquisition Computer displays and records true unlimited Hp, torque, RPM, elapsed time, etc. at up to 1,000 readings per second (per channel). It will even automatically apply SAE correction factors for air temperature, barometric pressure, and relative humidity.

More than acceleration Hp can be measured with DYNOmite absorption units, because they utilize an actual strain gauge equipped torque transducer. Measuring truck power under a controlled RPM load is vital for proper mapping of diesel engine management systems and guess-free emissions work.

Sustained Hp and top end require an absorption dynamometer (i.e. a DYNOmite system). Many of our systems can load a large truck indefinitely.* The absorber allows running controlled RPM step or sweep Hp tests. Everything is under computer control via the included Electronic Auto Load.

Simulate driving conditions on your bus and truck chassis dyno by letting DYNO-MAX and your PC take control. DYNO-MAX features a “Road Load Simulation” mode that simulates a loaded rig's momentum, air drag, rolling friction, etc. Enter the vehicle’s weight and drag data and then allow the software to monitor MPH vs. applied Hp, as it adjusts the dyno’s road load accordingly. To the truck's driveline and operator, the feel is like actually driving.

Already own an outdated truck dyno? Don't just give up on it. We can also convert many other manufacturer’s older, truck chassis dynamometers to modern road-load simulation control, with full Electronic Axle Synchronization, at a fraction of the cost of a new installation!

Dynamically balanced and machine traction-grooved rollers dramatically limit vibration and tire slip! Test most production vehicles (up to 120 MPH and 700 Hp) on our smallest dual-roller assembly. Larger diameter roll systems easily handle sustained higher poser testing. (**Capacities are approximate, as they are primarily tire safety and traction limited – higher torque requires tie downs.)

Fix driveline problems that might never show up in the garage, like shifting issues, driveshaft vibration, brake squeal, bearing noises, brake shudder, exhaust rattles, etc. - without costly field testing.

Verify emissions under load using your existing, or our optional (digitally integrated) DYNOmite 5-gas, exhaust analyzer or diesel truck smoke-opacity meters. Proper emission testing procedures require repeatable absorber load control, impossible on simple inertia dynos. No more trying to use unloaded idle data to verify that repaired vehicles are in emissions compliance. Send customers for state inspections with confidence.

Low profile, ramp loading allows installing the 24" dual-roller units above ground - or in the driveway. Ramps let you place it in locations where evne a shallow pit is not an option. No dedicated test bay, or digging up floors, required.

Rapid on-off set-up makes it practical to skip those old time-consuming road trips. Just drive it on, strap it down, hook up the tach (or use “Smart Ratio™”) and test – a full report prints out automatically!