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Engine Sim

View The "Inside Look" At Dynomation-5 Video

In 1993, early versions of Dynomation™ became widely recognized by professional engine builders and racers as the world's leading high-performance engine simulation software. After nearly 20 years of successful application, continued testing, development and millions of dollars of further enhancement on the part of three companies (VP Engineering, Motion Software, Inc., and ProRacing Sim, LLC.) Dynomation-5™ is now available to all engine professionals and serious enthusiasts.

Software Overview: Setting new standards in simulation technology, Dynomation-5 allows users to “look inside” a running engine! Dynomation-5 lets you see and analyze the powerful wave dynamics controlling induction and exhaust flow. For the first time, anyone can explore the effects of runner lengths, port taper angles, header tubing and collector dimensions, cam timing interactions, and much more. No other device or computer program does a better job of helping you understand internal mass flow. Dynomation-5 displays precisely how pressures and flow velocities vary at the valve/chamber interface. View induction and exhaust pressure pluses and mass flow data to gain unprecedented insight into why specific changes alter power and torque.

And Dynomation5 applies this tremendous modeling capability to a virtually unlimited range of engines, from humble single-cylinder engines to exotic V-12 racing powerplants. Design, build, and test a 1600hp ProStock engines, passenger-car daily drivers, exotic Sport-Compact Variable-Valve-Timing racers, or motorcycle engines (even those with megaphone exhaust systems)! With nearly one thousand built in shortblock configurations, a wide variety of domestic and import induction systems, hundreds of forced-induction choices, and much more, Dynomation-5 will become your most valuable development tool.

User Interface And Features: Despite the awesome modeling power in Dynomation-5, this simulation package was carefully designed to be easy and intuitive to use, even for beginners exploring engine dynamics for the first time! Are we exaggerating? Not at all. Supplied with an easy-to-read 300 page Users Manual, any user can learn how finite-amplitude waves (over 10,000 times "louder" than the typical sound waves we hear every day) move, change, and flow within the engine. By simply "playing" with Dynomation-5, you can easily see charge reversion, in-tune and out-of-tune conditions in the intake and exhaust passages, how cam timing affects mass flow and much more. To see how easy Dynomation-5 is to use, view the Dynomation-5 Video. Because Dynomation has been so carefully crafted, it is the best educational tool on engine pressure-wave dynamics available anywhere, hands down! And this fact is no better exemplified by the 3D realtime-rendered, cutaway engine available within Dynomation-5.

Dynomation-5 includes a 3D cutaway engine with piston motion and gas-dynamic flow rendered in real-time and synchronized with the wave-dynamics, crank-angle results graphs. Simply, drag the graph pointer and watch the engine move through its cycles, visualizing mass flow, exhaust and intake pressure waves, flow velocities, and more throughout the entire 4-cycle process! With the 3D engine, Dynomation-5 helps you see WHY an engine makes more power or, perhaps even more importantly, uncover and fix the reasons for poor performance.

Technical Overview: Everything about this new simulation is groundbreaking. Dynomation incorporates two distinct engine simulation models: 1) A Filling-And-Emptying simulation that provides extremely fast mathematical solutions to engine physics, including flow analysis and common intake- and exhaust-manifold modeling, making this technique a uniquely powerful and rapid way to "ballpark" engine design with very good accuracy, and 2) A full Wave-Dynamics Method-Of-Characteristics simulation that accurately predicts the complex pressure-wave dynamics and particle flow in intake and exhaust ducting. The Wave-Action model picks up where the Filling-And-Emptying method leaves off and "homes in" on the best port sizes, shapes, runner lengths, header-tubing sizes, cam timing and valve motion, and much more, providing unprecedented accuracy for the serious engine designer and builder.

By integrating these simulation technologies using a carefully-crafted Direct-Click™ user interface, engine data is seamlessly shared by both simulation models. Power, torque, engine pressures and more can be displayed independently, in comparison views, or in a HybridSim™, where simulation results from both methods are intelligently combined, building on the strengths of each modeling technology.

The complete Dynomation-5 package includes a great deal more than this. You’ll also find hundreds of other features that have become ProRacing Sim’s trademarks, including: 1) rapid Iterative™ testing, 2) comprehensive CamManager™ camshaft, cylinder-head-flow and engine-file import, 3) several built-in calculators for compression ratio, airflow conversion, and cam-timing math, 4) multiple-engine analysis, side-by-side, and One-Click QuickComparisons™, 5) professional multi-page dyno-test reports, and much more. This is the most accurate, capable, and extensive engine simulation software package ever offered to the professional or engine enthusiast.

Focus On Dynomation-5 Features: If you are a serious enthusiast, racer, or professional engine builder, you will find the tools and features supplied with Dynomation-5 a valuable additions:

  • ProIterator™—A powerful feature of Motion Software simulations. The ProIterator™ retains all the simplicity and ease-of-use of the Quick Iterator™, while adding powerful testing and analysis capability, including custom ranges, Induction-system Iteration, analysis of areas under the power and torque curves, and much more.
  • DataZones™—Extends the graphic-display and data-analysis capabilities of Dynomation-5. Using this feature, you can add additional data to graphs and/or show ranges for target power values, clearly label dangerously high pressures, engine speeds, and more.
  • Additional Simulation Data And Analysis Tools™ adds additional simulated pressures, forces, and other data to the graphs and tables in Dynomation. The additional data includes: Indicated Horsepower, Frictional Horsepower, Pumping Horsepower, Mechanical Efficiency, Gas Force On Piston, Induction Airflow, and Piston Speed. In addition, port-flow mass analysis data is provided and can be graphed or viewed on the 3D engine cutaway. Pressure waves are visible in the ports of the 3D engine and are keyed to the Crank-Angle graph reticules.
  • Import FlowPro, CamProPlus, S96, CamDoctor Files—adds the capability to import FlowPro flow bench files and a number of cam Profile files. A comprehensive import dialog allows you to set the lift for duration calculations, centerlines, etc.
  • ProPrinting™—Turns simulation results into a comprehensive "presentation" report of dyno-test data. ProPrinting™ features include custom graphics, a cover page with the name and address of your business (or your personal name and address) and logo, a table of contents, optional text printed at the bottom of each page (can be a disclaimer, copyright notice or any other text you wish), optional comprehensive or "mini" glossaries, and a complete listing of all test data and results at each rpm test point, including additional engine-data values, pressures, and forces.
  • Users Manual: Dynomation-5 is supplied with a 300-page, full-color, on-disk Users Manual (directly accessible from within the program). You can download a copy of the Dynomation-5 Users Manual to familiarize yourself with the capabilities of this software before you buy! Jump to our Support Page to download the Dynomation-5 manual (and, if necessary, Adobe Reader to view it on your PC).

    Previous Dynomation Users: Please visit for more information about upgrades from previous versions of Dynomation.

    Availability: Dynomation5 is available NOW! See our Order Form, for purchase information and Web Discount pricing.

    What Dynomation Can Do For You:
    View the Engine Simulation Feature Table for additional overview of program features)
    • Determine Horsepower And Torque With High Accuracy

    • Analyze Pressure Waves And Their Affect On Power

    • Display Intake And Exhaust Pressures And Flow Velocities

    • Display Cylinder Pressures Throughout 4-Cycle Process

    • Build And Test Virtually Any 4-Cycle Engine!

    • Find The Best Parts And Specs For Any Application

    • Easy Component Selections, Just Point And Click

    • 10-Point CamManager™ Shows Cam Timing & Lobe Acceleration

    • Exclusive Iterator Testing™ Adds Incredible Power

    • Test Alternate Fuels And Nitrous-Oxide Injection

    • Auto-Scaling Power, Torque, Pressure Curves

    • Display And Print Components And Color Graphs

    • Test Carburetors/Injection, Stock & Racing Manifolds

    • View And Print Engine Pressures, Efficiencies

    • Model And Compare Multiple Engines

    • Use Built-In Calculators (Cam, Induction Flow, Compression, Induction Airflow, and AirFlow Conversion)

    • Optional ProTools™ Kit Adds Professional Features

    • Instantly Switch Between US & Metric Units

    Tune These Key Engine Components:

    • Select Simulation Model And Testing Characteristics

    • Bore, Stroke, Pin Offset, Rod Length, Rod Ratio

    • 1 to 12 Cylinders

    • Wedge, Canted, Hemi, Pentroof, 2- And 4-Valve Cylinder Heads

    • Various Combustion-Chamber Configurations And Burn Rates

    • Intake And Exhaust Valve Sizes And Flowbench Test Sizes

    • 1, 2, Or 3 Valves Per Port

    • Accurate Cylinderhead Flow-Bench Data Modeling

    • Enter Custom Flow Data To Model Any Cylinderhead

    • Any Valve Lift—Automatically Calculate Valve Lift Feature

    • Compression Ratio From 6:1 to18:1—Use Compression Calculator

    • Intake Manifold And Exhaust System Modeling

    • Up To 7000cfm Peak Induction Flow

    • Any Carburetor (multiple or single) or Fuel Injection

    • Intake/Exhaust Port Design And Modifications

    • Intake Runner Length And Taper Angle Analysis

    • Turbo And Supercharger Pressures, A/R Ratios, Turbine Sizes

    • Roots, Centrifugal Belt Ratios, Intercooler Efficiency

    • Various Fuels, Including Gasoline, Methanol, Propane, More

    • Model Air/Fuel Ratio Throughout Entire Engine Rpm Range

    • Model Ignition Timing And Ignition Advance Curves

    • Nitrous-Oxide With Gasoline And Methanol

    • Standard Headers, Megaphone Systems

    • Model Mufflers, Catalytic Converter Backpressure

    • Exhaust Minimum Port Area Modeling

    • Exhaust Header Tubing Size And Length

    • Straight or Stepped Headers

    • Collector Size, Length, And Taper

    • Model Standard And Variable Valve Timing Systems (VTEC)

    • Overhead Cam, Pushrod, Rocker, Any Ratios

    • Modify All Valve-Event Timing Specifications

    • Lobe Acceleration Analysis And Modeling

    • Change Lobe Centerlines And Durations

    • Use Cam Profiles or 10-Point Timing Methods

    • Import S96, CamPro, CamPro+, And Cam Doctor Cam Profiles

    • Search 6000+ CamFiles In Seconds; Find Compatible Profiles!

    • Designer/Professional Level Engine Simulation!

    What The Pros Say About The Filling And Emptying and Wave-Dynamics Capabilities In Dynomation5:

    • Dynomation is the only engine simulation program that helps the individual understand the gas-exchange process. Warren Johnson, Engine designer, builder, ProStock Champion, (aka The Professor).
    • We picked up a tenth and ten mph from changes we found in Dynomation. Jim McClure, Top-Fuel racer, record holder. First naturally aspirated 200-mph Harley-Davidson.
    • I have worked with many good race teams, but rarely do you find one that grasps the concepts of pressure waves and taper. Dynomation-5 gives you the ability to understand what is happening in the engine. You should never underestimate what that will teach you. Michael Marriott, Race engine builder for their record-setting Australian cars, long-time Dynomation user, C&R Motorsport, Western Australia.
    • The most revealing and thought provoking engine simulation that I have ever used! George Bryce, Three time world NHRA ProStock Motorcycle champion.
    • The best of its kind on the market! Easy to use and it produces accurate results. David Vizard, professional race car driver and engine builder, member of SAE, author of countless magazine articles and almost 100 books on automotive performance.
    • Remarkably accurate! John Baechtel, former Editor of Hot Rod and Car Craft Magazines, member of exclusive 200mph Bonneville Club.

    Special Web Pricing
    And Package Deals Available Now!

    What Makes
    Dynomation-5 Unique:

    • Dynomation is a highly-refined engine simulation that considerably reduces the cost and time of engine development and testing.
    • Fully analyzes induction runner lengths, taper angles, port areas, and cylidnerhead flow variations.
    • Models combustion-chamber shapes and burn rates. Set ignition timing and ignition advance curves.
    • Investigates exhaust system primary and collector lengths and tubing diameters of both straight and stepped configurations.
    • Performs exceptional analysis of camshaft lift, duration, centerline, and lobe-separation angles. Loads and tests CamPro, CamProPlus, S96, and CamDoctor cam profile files.
    • Import DynoSim5, DeskTop Dyno5 engine and camfiles. Send Dynomation5 engine files to DragSim5 and FastLapSim5 for track analysis.
    • “Look Inside” a running engine. View and analyze intake and exhaust flow! 3D Cutaway Engine shows mass flow, port velocities, pressures—synchronized to the crank-angle data displayed in Dynomation-5.
    • Dynomation-5 is used worldwide by engine builders, racers, and professional race teams.
    Program Highlights:
    • Bores & Strokes (As Small As 2.5-Inch Bore, 2-Inch Stroke; 1.5-Inch Stroke And 2-Inch Bore with optional ProTools™ Kit).
    • Improved Induction Models, Includes Domestic and Sport-Compact Intake Manifolds, 100+ Cylinder Head Flow Files.
    • Improved Cylinderhead Flow Modeling, Supports 1, 2, or 3 Valves Per Port.
    • QuickIterator™ Fast One-Button Testing. Powerful, ProIterator™ Included.
    • CamManager™ Visually Displays Cam Timing, Models Lobe Acceleration, Improves Accuracy. Imports CamPro, CamProPlus, S96, CamDoctor Cam Profile Files
    • Supplied With Over 800 CamFiles. Add 6000+ More With CamDisk7. All CamFiles Load Automatically In CamManager™!
    • New Custom Colors And Graphics, QuickAccess™ Buttons, More Engine Data, 300-Page Color Users Manual, And More!
    • Accurately Simulate 1-to-12 Cylinder, 4-Cycle Engines
    • Graphs Horsepower, Torque, VE, Engine Pressures And Much More!
    • Compare Up To Four Engines At Once; Pick The Best In Seconds!
    • Test Detroit Iron, Sport Compact Powerplants, Stock Or Custom Racing Engines
    • Lobe-Acceleration Analysis, 10-Point and Profile Modeling!
    • Test Any Cylinderhead Design; Choose From Menus Or Directly Enter Custom Flow-Bench Data
    • Test Turbos, Roots Blowers, Centrifugal Superchargers (100 Built-In Choices)! Set Boost Pressure, Turbine Size, A/R Ratios, RPM, Belt Ratios And More!
    • Evaluate Intercooling With Any Forced Induction System
    • Combine Any Induction With Any Fuel, Including Nitrous-Oxide Injection
    • Advanced Windows Interface With Easy-To-Use, DirectClick™ Menus, And Enhanced Graphics
    • Graphs Fully Customizable; Display/Compare Any Engine Variable
    • Simply Click On Any Component And Select From Extensive Menus Or Enter Your Own Custom Specs
    • Analyze Cylinder And Manifold Pressures, Frictional Losses, Perform Comprehensive Technical Analysis
    • Accurate, State-Of-The-Art, and Fun To Use; Dynomation Is The Best Engine Simulation You Can Buy!


    • Any PC Capable of Running WindowsXP/Vista & Win7 & 8.
    • A fast system processor (2GHz or faster) will improve processing speeds; especially helpful for Wave-Action and Iterative testing. However, Dynomation5 will operate on any Windows system, regardless of processor speed.
    • A USB Port for the Security Key required to run Dynomation5.
    • A minimum of 256MB of RAM (random access memory) for Windows98/Me; 512MB for Windows2000/XP, and 1GB for Vista & Win7 & 8.
    • A video system capable of SVGA at least 800 x 600 resolution. Recommend 1280 x 1024 or higher to optimize screen display of engine components and performance analysis graphics.
    • Mouse
    • CD-ROM Drive
    • Windows-compatible printer required for test reports





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    222 South Raspberry Lane, Anaheim, California 92808-2268
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