Making Money… from more than flash power!
Are you taking advantage of all the types of testing that you can offer customers with your DYNOmite Chassis Dynamometer? Too many owners advertise only their ability to perform peak horsepower pulls or full throttle tuning. Neither of these services will draw in projects like researching the 80 MPG Honda Insight, shown in the photo above!
Unlike several other brands of inertia only and eddy current absorber chassis dynos, DYNOmite chassis dynamometers are capable of doing much more sophisticated testing. Some reasons are obvious, like the power of DYNO-MAX 2000 "Pro" and its digital links to AFR, OBD-II, and 5-gas emissions data. But one of the most important advantages, explored more below, is that all our systems' rolls provide adequate polar moment of inertia for simulating the vehicle's real world off-throttle (coasting) momentum.
On the highway, a vehicle's own mass keeps it rolling against wind drag and rolling fiction -even as the driver reduces the throttle to 0%. Compare that with a stationary dyno where the vehicle's weight supplies no momentum at all. Unfortunately, excepting $200,000 chassis dynamometers with large motoring AC drives, traditional dyno absorbers can only add load -maintaining or decreasing steady state vehicle speed. In other words, the absorption brake can not simulate momentum energy feedback into a test. So, any vehicle inertia emulation must come from the dynamometer's own flywheel mass.
Obviously adding mass requires more steel. Yet because of today's
high metal prices, too many Brand "D" dynos are built with 
insufficient inertial mass.
Operators attempting precise
part throttle drivability tuning or
emissions work on these low
inertia chassis dynos soon reach
their simulation limitations.
During testing, whenever the
driver closes the throttle, RPMs fall unrealistically abruptly. These dynos just can not accurately replicate the extended high manifold vacuum conditions that regularly occur under normal cruising and coasting situations on the highway. If the spark, injection, or carburetion is mapped for best part throttle economy or lowest emissions -actual on-the-road results are inevitably disappointing. Instead of the smooth and improved performance their dyno predicted, the end product is a lot of surging and popping.
Contrast this with your DYNOmite's capabilities. Each system incorporates appropriate inertia that, when coupled with the absorber's road load simulation control algorithms, allows for accurately simulating typical highway transient acceleration and coasting conditions. What this means to you and your prospective clients is that any in-house tuning results will match those done on a road course. So be sure to spread the word about the differences when soliciting new tuning and research business opportunities.
