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ProRacing Engine-Simulation Features Comparison

Selecting The Best Engine Simulation For Your Needs:

Please note that this table is organized in three main categories: The DeskTop-Series™ is shown in the blue column (easier-to-use, less expensive), the Sim5-Series™ is shown the yellow column (more features, designed for serious enthusiasts), and Dynomation-5™ is shown in the green column (professional-level engine simulation).

 

Note: The Engine Simulation features listed in this table are described below.

Description Of Program Features:

(1) Alternate Fuels/Nitrous Injection: Simulation supports testing various fuels and nitrous-oxide injection. Cylinder pressures, including BMEP (Brake Mean Effective Pressure), are calculated and can be used to determine safe nitrous activation points and flow limits.

(2) Air-Fuel Ratio Modeling: Model any air/fuel ratio for any fuel selected. Air/Fuel ratio remains fixed throughout the rpm testing range. Also see #45 a Pro-Tool™ feature that allows the air/fuel ratio to change via a user-entered "map."

(3) AirFlow QuickCalculator™: Several ProRacing engine simulations accept induction airflow (cfm) measured at a pressure drop of either 1.5-In/Hg or 3.0-In/Hg. For those instances where an induction system, injector, or carburetor was flow tested at a different pressure drop, or whenever you would like to convert flow values from one pressure-drop rating to another, the Airflow QuickCalculator will easily perform these conversion functions.

(4) CamMath QuickCalculator™: The basic four valve events (IVO, IVC, EVO, EVC) are needed to pinpoint the intake and exhaust valve opening and closing points. Unfortunately, many cam catalogs and other printed materials do not provide this essential information. While these conversions can be accomplished in the CamManager™, the simple the CamMath QuickCalculator™ instantly converts the lobe-center angle, intake centerline, and the duration values into IVO, IVC, EVO, and EVC valve events.

(5) Variable Valve Timing: Modern engines use variable cam timing to optimize power, economy, and other engine characteristics. All ProRacing Engine Simulations now include a Variable Valve Timing model that "switches" between two unique cam profiles when the engine reaches the activation rpm. The cam profiles for each "lobe" and the activation rpm are completely adjustable and can be included as variables in Iterative testing (see #33, The ProIterator™).

(6) One-Click Iterative Testing™: Iterative™ testing, an exclusive feature of ProRacing Sim software, is an automated method of performing multiple tests and locating optimum combinations, automatically. One-Click Iterative Testing is a feature of the QuickIterator™ incorporated in all ProRacingSim engine simulations. By simply clicking a single button, the simulation will begin a series of tests and display the best result, all without user intervention (also see ProIterator™).

(7) Connecting-Rod-Length And Rod-Ratio Modeling: Simulation incorporates sophisticated models that simulate the changes in forces against the cylinderwall and crankshaft that occur when connecting-rod length is modified. You can directly enter any connecting-rod length or rod ratio for analysis. Program displays changes in power, torque, etc.

(8) Piston-Pin Offset Modeling: All ProRacing Sim engine simulation will model the subtle effects of piston-pin offset on instantaneous piston position, piston dwell and the associated thermodynamic effects, and piston/cylinderwall friction changes due to pin/rod/crank geometry.

(9) Import Port Flow Files: All ProRacing engine simulation can import and test flow files from virtually all other ProRacing Sim engine simulations (even older software). This makes testing and analysis much easier for those who have developed a library of data files from other simulation packages.

(10) High-Speed Simulation: Simulation code written in C++ for super-fast execution. Substantially shortens data analysis during Iterative™ (multiple-simulation run) testing.

(11) Model Combustion-Chamber Burn Rate: New models have been included that simulate the conditions inside various combustion chambers and modify the burn-rate of the fuel as the chamber shape is varied. Burn rate also changes as compression, rpm, fuel type, air/fuel ratio, and other engine parameters vary.

(12) Custom Cylinder-Head Flow: Allows the direct entry of flow-bench data, permitting accurate modeling of any cylinder head port flow. Cylinder-head flow files are supplied with the simulation and can be saved and loaded. Also, flow files for many engines are available from enthusiast groups on the Internet.

(13) Multi-Page Test Reports: Simulation analysis is printed in color on several pages, depending on the simulation package. Component selections, custom data (like cylinder head flow, power curves, etc.), graphic analysis, and data tables comprise some of the pages. For even more-enhanced printing, see #30, ProPrinting.™

(14) Direct-Click™ Component Menus: A completely unique feature on all ProRacing Sim packages. Direct-Click™ menus allow you to select any engine/vehicle component by simply clicking on it, making modifications extremely easy. This eliminates "hunting" through drop-down menus for the parts you need; just click on any component on the left side of the main program screen and make your selection.

(15) Test Multiple Engines: A powerful feature that allows testing multiple engines at once. Each "open" simulation is available for analysis, and can be brought into focus by simply clicking a tab located at the bottom of the screen. This professional feature saves time, eliminates opening-and-closing multiple simulation files, and permits rapid side-by-side comparisons.

(16) Cam Manager™: A comprehensive tool for entering, displaying, and modifying valve event iming and valve lift. Graphic displays show the effects of duration, lift, and lifter acceleration for both seat-to-seat and 0.050-inch valve-timing specifications. Sophisticated algorithms calculate lifter acceleration and improve simulation accuracy. Save and load CamFiles (many CamFiles are supplied with the simulation and many more are available on an optional CamDisk-8 CD, available from ProRacingSim).

(17) Import CamData™ Files: Simulation will read CamFiles™ that contain not only valve timing events, lift, and camshaft type, but also cam manufacturer application data, engine family recommendations, web-site contact data, and more. All ProRacing Sim engine simulations are supplied with up to several hundred CamFiles, and more are available from ProRacing Sim on the CamDisk-8 CD. Allows rapid testing and matching event-timing to actual cam manufacturer’s part numbers.

(18) On-Graph Comparisons Of Multiple Simulations: Compare up to four "open" simulations (see #15, Test Multiple Engines) on any of the graphic displays. Comparisons can consist of any of the displayable simulation variables, such as horsepower, torque, engine pressures, engine rpm, VE, port pressures, and much more.

(19) One-Click Quick-Compare™: A time-saving feature that allows you to instantly establish a baseline engine curve and perform a side-by-side comparison with a single mouse click. This is the fastest way to test component changes and view how they alter engine performance.

(20) Automatic Updating Via The Web: All ProRacing Sim simulations support automatic updates distributed via the Web. Periodically our simulations check our servers and automatically download and install program updates. This process requires almost no user intervention. Automatic updating ensures that you are always running the latest simulation technology!

(21) Real-Time "What-If" Testing: All ProRacing engine simulations show components on the left side of the main program screen and display simulation results on the right. In addition, these advanced software packages are highly optimized to minimize simulation calculation times. The combination of these two features allow you to analyze more components, quickly modify any components, and instantly see the results in graphs and tables. This exclusive design sets the standard for interactive, "What If" testing.

(22) U.S./Metric Units: Allows rapid display of either U.S. or Metric units. Switching between units system is seamless and instantaneous.

(23) Advanced Compression Ratio Calculator: Easy-to-use, intuitive selections make calculating compression ratio a snap. Enter known values or measured volumes and instantly see the exact compression ratio for any engine.

(24) Rocker-Math Calculator: Helps determine not only the changes in valve lift as rocker ratios and lash is changed, but also the changes in valve opening, closing, and duration timing. Simply enter the changed specs and the Rocker-Math calculator will display the new valve lift and individual valve opening and closing timing. A must-have for fine tuning valvetrain dynamics for optimum performance.

(25) Forced-Induction Modeling: Adds sophisticated turbocharger, roots and centrifugal supercharger modeling. Display manifold pressures, modify belt ratios, pressure ratios, A/R ratios, intercooler efficiency, and more! Also includes wastegate modeling.

(26) Model Ignition Point And Advance: Adds ignition timing modeling that determines Mean-Best-Torque with least Advance. Ignition timing can be modified and advance curves defined. Ignition timing is derived from the burn model applied during combustion-chamber analysis, so chamber design, fuel type, A/F ratios, and more are included in ignition timing modeling. Clicking a checkbox in the Combustion Category instructs the simulation to derive an optimum ignition-advance curve (this feature can be used to "eliminate" ignition timing based fluctuations in engine output, making it easier to focus-in on and tune other engine components).

(27) ProIterator™: Iterative™ testing, an exclusive feature of ProRacing Sim software, is an automated method of performing multiple tests and locating optimum combinations, automatically. The ProIterator, a ProTools™ feature, provides maximum flexibility in selecting components and setting up the desired testing criterion. Search for optimum power or torque, or locate the component combination that produces maximum "area-under-the-curve" for horsepower or torque. Once you have established the testing criterion, the ProIterator will begin a series of tests and display the best 10 results, all without user intervention (also see #6, One-Click Iterative Testing™).

(28) Extended Color Display: Allows user selection of optional color sets for the main interface.

(29) Extended-Data Displays: This professional feature is available in the ProTools™ kit for many simulations (exclusive feature of ProRacing Sim/Motion Software, Inc). Professionals often need additional data beyond power, torque, and other "basic" measurements to optimize engine performance. To provide this data, internal physics models are extended, "in-depth" data is calculated and made available for graphic and table-based displays. Extended data types depend on the simulation, but examples include various engine pressures, frictional power consumption, piston speed, and more.

(30) ProPrinting™: This is a professional feature available in the ProTools™ kit for many simulations (exclusive feature of ProRacing Sim/Motion Software, Inc.). ProPrinting produces custom, full-color, multi-page test reports, including cover pages, tables of contents, your name and/or company name and logo, and even an optional glossary. ProPrinting produces an easy-to-read, comprehensive, professional printed test reports that you will be proud to display, present to customers, or keep for a lifetime.

(31) ProData™ Graphic Displays And Tables: This is a professional feature available in the ProTools™ kit for many simulations. Includes the display of additional simulation data, often needed by professional racers and/or engine developers. The ProData Tables display the additional data in an easy-to-read format, and are provided in addition to the standard graphs and data tables in the simulation.

(32) Graph DataZones™: This is a professional feature available in the ProTools™ kit for many simulations. Graph DataZones allow the display additional graph data and/or show ranges for target data values. DataZones can clearly illustrate dangerously high pressures, engine speeds, or almost anything you wish to highlight in addition to the standard data graph lines. DataZones can be displayed in any color(s), and you can automatically select a gradient range between beginning and ending color bands.

(33) Analyze Area Under Data Curves: Part of the ProIterator™ included in the ProTools™ kit. While peak values of torque or horsepower focus on the "absolute maximum," the areas under these curves indicate the greatest "volume" of power or acceleration. Think of this area as the maximum horsepower throughout the rpm range (or torque over time). The ProIterator can search for the 10 best combinations that produce the greatest area under any portion of a selected data curve.

(34) Full Wave-Action Simulation: Finite-amplitude, wave-dynamics analysis using the Method-Of-Characteristics and Filling-And-Emptying mathematical models are exclusive features of Dynomation-5. These processes simulate the complex interactions of pressure waves in the intake and exhaust passages. Since pressure waves significantly affect the flow characteristics within engine, a comprehensive analysis of these pressure pulses and how they interact with runner length and taper angles is computed and made available for tuning. The wave-action dynamics calculated in Dynomation-5 is one of the reasons this simulation is considered the highly accurate in predicting mass flow within the IC engine and overall power potential.

(35) Analyze Induction And Exhaust Pressure Waves: Comprehensive graphs and data displayed in tables, often synchronized to the graph-reticule position (indicating the instantaneous crank-angle), are provided in the Dynomation-5 engine simulation. These pressure-wave data-sets are displayed and can be compared with pressure pulses at different engine speeds or even with different engine designs. This in-depth analysis offers the most detailed view "inside" a running engine ever offered in simulation software.

(36) Model Intake Runner Lengths And Taper Angles: The "secrets" to engine performance often lie in the subtle elements of engine design, like the lengths and shapes of induction and exhaust passages. The Dynomation-5 engine simulation allows anyone to test a wide variety of runner lengths and taper angles to determine not only how these critical elements affect engine power throughout the powerband, but also to select optimum shapes for virtually any application.

(37) Megaphone And Normal Header Design Modeling: Dynomation-5 models single exhaust pipes per cylinder, "standard" headers with collectors, and megaphone exhaust systems. All tubing lengths, diameters, and taper angles can be tuned for a variety of applications. Megaphone exhaust systems are often used in racing motorcycle applications, but are occasionally applied to performance automotive applications, also.

(38) Model/Graph Ignition Timing and Advance: Dynomation-5 allows the direct plot of ignition advance, making it easy to see advance curves in a typical Advance vs. Rpm plot.

(39) Transparent 3D-Engine Pressure-Analysis Display: Dynomation-5 provides a unique and powerful way to visualize the motion of pressure waves within a running engine. A cutaway view of a engine, rendered in real time using sophisticated 3D graphics, synchronizes valve and piston motions to the pressure-crank angle diagrams. As you move the reticule across the diagram—to any crank angle within the 720 degrees of the 4-cycle process—the motion of the pistons, valves, and pressure waves are displayed. This unprecedented technology allows you to "see inside" the engine, providing the ultimate tool for pressure-wave understanding and analysis. A powerful tool for teaching and learning engine theory.

(40) Graph Reticule Synchronized With Engine Data: Dynomation-5 has moveable reticule lines on graphs that are synchronized with the underlying data. By moving the reticle over the graph, the corresponding data can be displayed. This feature is very helpful in analyzing complex engine performance data at any point during the simulation.

(41) Import CamPro, CamProPlus, S96, and CamDoctor Cam-Profile Files: To allow the widest possible modeling power, Dynomation-5 supports the direct import of a a number of commonly used cam-profile formats, including CamPro, CamPro+, S96, Cam-Doctor, and other files. A powerful import-dialog box helps you assign centerline values and determine valve-open duration from lifter-rise measurements.

(42) Variable Resolution Simulation: Dynomation-5 calculates gas-dynamics within engine passages by dividing the intake and exhaust passages into small volumes, called meshes, of equal size. The smaller the mesh size, the more rigorous the mathematical analysis. In many cases, the standard Course mesh is sufficient to accurately analyze gas dynamics within intake and exhaust passages. But, in some cases, a more complete analysis is required to overcome instabilities or odd pressure-wave interactions. This analysis is provided in the Fine and SuperFine resolution modes.

(43) Imports Dynomation (earlier version) and DynoSim5 (and earlier version) Engine Files: Dynomation-5 can import several engine formats, allowing anyone that has upgraded from DeskTop Dyno5, DynoSim5 or even earlier simulation versions to easily import their simulated engines to begin a more rigourous analysis in Dynomation-5.

(44) Air-Fuel Ratio Vs. Rpm Modeling: This is a ProTools™ feature in Dynomation-5. Models changing air/fuel ratios throught the rpm band by simply entering the desired air-fuel ratio values in an fuel-ratio "map" table.

(45) View 3D Engine Mass-Flow Analysis: As described in #39, 3D-Engine Pressure-Flow Analysis, Dynomation-5 includes a cutaway view of a engine allowing you to view the motion of the pistons, valves, and pressure/flow within the ports of the engine. A professional feature available in the ProTools™ kit for Dynomation-5 extends this powerful modeling technology to include the visualization of mass flow into and out of the cylinders.

(46) Dual-Sim (Hybrid) Engine Modeling: Dynomation-5 includes both the DynoSim5 Filling-And-Emptying mathematical model and the Wave-Action, Method-Of-Characteristics engine model. These complimentary simulations work together to provide the engine researcher with the greatest flexibly and modeling feedback. This feature is further extended in Dynomation-5 by adding the capability to include a Hybrid model that combines the results from both simulations to best utilize the strengths of each modeling technique.

 

 
 

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