User Guide

6—Dyno2000 Advanced Engine Simulation
of torque and horsepower. There are many shortcomings to this technique. The two
greatest drawbacks are: 1) since cylinder pressure is not determined, it is impossible
to predict the pressure on the exhaust valve and the subsequent mass flow through
the port when the exhaust valve opens, and 2) the inability to accurately determine
the pumping horsepower (energy needed to move gasses into and out of the engine)
from the predicted horsepower.
Since the Dyno2000 incorporates both filling-and-emptying and full-cycle model-
ing that includes frictional and pumping-loss calculations, extensive computation is
required for each power point. In fact, the program performs several million calcula-
tions at each 500rpm test point on the power curve (a full power-curve simulation
consists of 27 test points). This in-depth analysis offers unprecedented accuracy
over a vast range of engines. The Dyno2000 has been successfully used to model
single-cylinder “lawn mower” engines, light aircraft engines, automotive engines,
modern Pro Stock drag-racing powerplants, and multi-thousand horsepower super-
charged, nitrous-oxide injected “mountain motors.”
WHAT'S NEW IN THE DYNO2000
The Dyno2000 features a completely unique, easy-to use, point-and-click inter-
face. Just click on any component, and drop-down menus offer alternative selec-
tions. Hundreds of components are available, including a wide selection of import
engines. Instantly change between US and Metric measurements.
The Dyno2000 also models of forced induction systems, including turbocharging
and roots/centrifugal supercharging. Set maximum boost, belt ratios, efficiencies,
and more! Even model intercoolers.
Test engine power with alternate fuels, including Methanol, Ethanol, Propane,
Introduction To The Dyno2000
The Dyno2000 incorporates a
very clean, intuitive user
interface. If you wish to
change a component, simply
click on the component
name and select a new
component from the drop-
down list. A comprehensive
data display is fully
customizable. Multiple
engine and/or data value
comparisons are possible.
All components and graphics
displays can be printed in
full color.
Dyno2000 Main Component Screen