Computer Program to Simulate, Predict and Analyze Stock or Race Engine Dynamometer (dyno) Performance. New Optimize feature in Version 3. 2. Screen shown here is trying around 160, 000 combinations to come up with cam specs to produce the highest Peak HP on this engine, while maintaining at least 9" idle vacuum. The Engine Analyzer lets you simulate an engine build-up or modification on your personal computer. It let's you play "what if" with cams, heads, intakes, superchargers, etc. and see the effect on torque, HP, fuel flow, air flow, valve toss or lifter pump-up, idle vacuum, cranking compression, spark knock, etc. "Its like having a dynamometer right in your computer. "The Engine Analyzer will help you predict and understand how your engine makes power with various combinations of parts. For example, you will see trade-offs between low speed torque and top end HP for different cams, turbo sizes, port or header sizes, etc. You can save time and money by installing the right parts the first time. Our popular DOS version has been around since 1988 with 3 major upgrades. During this time we've learned that users keep asking for 2 things: More Ease of Use and More Features, both which we've incorporated into version 3. Ease of Use Features: Mouse driven interface compatible with Windows 3. 1 or Windows 95. Lots more example complete engines, heads, cams, superchargers, headers, etc preloaded for you to pick from. The name of the example component is displayed to remind you what the specs are for (like Dart II heads, Comp Cams , etc. Beginner User mode hides more complicated options. "Typical" examples are provided for when there are no Examples to match your component parts. On screen help by simply clicking on any input spec. New Features: You can save your own example parts. Use cam specs rated at . 050" or . 040" (1 mm) lift or seat timing (advertised duration). Advanced Engine File Open and Save commands let you access most any directory or disk drive. Better graphing features including graphing up to 6 tests, zoom, shift, modify titles or labels, different background colors, line styles, etc. a log of the last 25 runs is kept to track your modifications. You can select runs from the log to keep longer to recall or graph in the future. Print most menus. Loads power curves automatically into the proper Windows versions of Drag Racing or, Circle Track Analyzer. New Inputs like Valve Train Type, Lifter Type, new turbo and S/C specs, Rod Len. , Collector Len. , Carb vs EFINew outputs like A/F Mixture Quality and Valve Toss (or hydraulic lifter pump-up) and other changes provide improved accuracy. The Engine Analyzer has always had more detailed inputs than other programs. Now by providing numerous example parts, the average user can more easily run the program, and the advanced user can still access all input specs for detailed analysis. Optimize feature shown above to automatically best combinations (version 3. 2). Auto-Link feature automatically and quickly sends power curve to a vehicle program like Drag Racing Analyzer or Circle Track Analyzer to determine how an engine mod affects ET or lap times. What You Need: IBM or compatible computer with Windows 95, 98, Me, XP, 2000 or NT. What You Get: Program CD and 240 page user manual on CD as PDF File. Printed manual also avaialble. About 80 example engines and thousands of components preloaded for you to start with.Pit Stop USA offers Performance Trends Engine Analyzer Version 3.4 for Windows EA34C at low everyday prices. Be sure to check out all of our products from Performance Trends including Performance Trends Engine Analyzer.