Motion Software, Inc.

News & Views!

Four Stroke
And Two Stroke Simulations
Bundle Pricing!

Thousands of racers and performance pros around the World use Dynomation-5 to model four-cycle engines. Now you can use DynomationTwoStroke to model a wide variety of two-stroke engines! Purchase this recently released two-stroke simulation individually or in a super-discount bundle with Dynomation-5. Purchase details here.

Since its early development in the mid-1990's, DynomationTwoStroke has become an essential tool for two-stroke racers, engine builders and component developers. The program has earned a reputation for accuracy and ease of use. It can model a wide variety of two-stroke engines and graphically displays intake and exhaust pressures and flows (in the intake, transfer, and exhaust passages). This Motion Software program supports Windows (98/XP) and is supplied with an updated User Manual. Read the technical details here.

Guaranteed Performance From Motion Software, Inc.

Click Here For Purchase Details

Industry First!
Lobe-Profile Library
Includes 1700+
Cam Lobe Profiles!

Motion Software and COMP Cams™ have joined forces to offer engine enthusiasts nearly 2000, state-of-the-art, cam-profile files that you can instantly load and test in Dynomation-5! These profiles allow Dynomation-5 to precisely simulate valve-motion, an essential step in obtaining the highest accuracy in engine modeling. If you want the highest modeling accuracy in Dynomation-5, this Lobe-Profile Library will be a priceless addition to your engine design toolkit.

For a limited time you receive this CD Library FREE with your purchase of Dynomation-5 (Separate Library value $149.95).

Click Here For Details

Other Motion Software Simulations

Enthusiasts that do need the power and capabilities of Dynomation-5, or for those who are interested in simulating straight-line and road-course vehicle dynamics, Motion Software has developed additional software simulations that are available exclusively from ProRacing Sim, LLC. Check out all our simulations at:

    Note: Motion Software offers a full Guarantee on all products, and your  Privacy is protected on this site.

Dynomation-5.16Four-Stroke Simulation
  Proven Four-Stroke Technology Speeds Engine
Runs Under All Versions Of Windows: XP to Windows 10

Engine Simulation

Used By Pros And Engine Enthusiasts

   Dynomation-5 lets you peer inside a running four-stroke engine! It reveals–otherwise invisible–pressure waves and mass flow in cylinders and engine passages. Dynomation not only accurately displays how much power an engine will produce, but it also shows you why it makes that power and where you should put your efforts to optimize performance!

  The latest release (version 5.16) adds several GTX Turbo maps, E85 modeling, enhanced combustion and ignition modeling and more. Recent previous updates added improved integration between the FE and WA models, improved camshaft and rocker-arm modeling, improved tables and charts, new Pressure-Volume and Pressure-Crank-Angle graphs, Crank-Degree data tables, comprehensive support for metric and US measurement systems, output data to spreadsheets and much more! Fully compatible with Windows XP, Vista, 7, 8 and Windows10 (32- and 64-bit).

Check out our On-Line Discount And Bundle
Pricing and SAVE!

New Shipping Version: 5.16

Lobe Profile Library
Now Included FREE


Using Computers To

Build Horsepower

Download Free Copy Of
Dynomation-5.16 Four-Stroke
UserManual (30Mb)

  Proven Technology For Two-Stroke Engines!

Two-Stroke Sim

Used By Pros And Engine Enthusiasts

Note: This simulation requires Windows98 or WindowsXP (32-bit).
 DynomationTwoStroke is a full-cycle simulation, that calculates the complete fluid-dynamic, thermodynamic, wave-dynamic, and frictional conditions that exist inside the cylinders and runners throughout the entire 360 degrees of the two-cycle process. Model engines with Piston-Port, Reed, or Rotary valving. Design Expansion Chambers, watch pressure-waves "Live" as they move in exhaust ducting. Perform quick "what if" testing to zero in on the best combinations for any application.

 Wtih DynomationTwoStroke, you'll build and test two-stroke engines in no time! You can depend on this package to produce solid, accurate predictions of engine performance characteristics.No other two-stroke engine simulation comes close to DynomationTwoStroke for simulation capability, accuracy, and ease of use.
   Find out more about DynomationTwoStroke here.

Check out On-Line Discount And Bundle Pricing!


       New Shipping Version: 1.10

Download Free Copy Of
UserManual (3Mb)

Dynomation Upgrade Policy
If you own Motion Software's Dynomation DOS or Version-4, consider yourself a Premier member of the Motion Software Dynomation Team. Reap the benefits and purchase a Dynomaiton-5 (or Dynomation TwoStroke) upgrade at a special discount!

Contact us at:
for purchase details.


Motion Software Dynomation Team members take advantage of the best upgrade discounts in the industry! Join the Team and you'll always get the lowest upgrade pricing!

Dynomaiton-5 upgrades
(for Windows Dynomation Users)
works with your existing USB security key. Plus, you can run Dynomation-5 and earlier versions side by side on any system.


Educational Discounts

Many schools and educational institutions have asked us to offer software site licenses for use in multiple classrooms or by multiple users. We are pleased to announce that Dynomation-5 can now be purchased by an accredited school on a 5--user site license. Teachers email our order desk for more details at: or fax: 714-283-3130.

  Site Navigation:

Home           About           Privacy           Guarantee           Site Map

Products            Order Products On Line           Support            Register On Line 

    FeedBack           Special Pricing           Links
Send questions or comments about this web site to Copyright (c) 1997/2008 Motion Software, Inc. All Rights Reserved. No part of this document may be reproduced without the explicit written permission of Motion Software, Inc.