Performance Trends, Inc.

Producing Quality Computer Tools for Racers and Engine Builders since 1986

Demo Movie Files

These files show how to use some of the features of our programs.  Download these .wmv files movie files and let your Windows Media Player show them.  Just sit back, relax and listen as we explain features in our programs, many of which are not found anywhere else.

IMPORTANT:  Some of these movies are made at very low resolution to keep these files small and workable on all computers.  The programs will be much more clear and crisp on your actual computer.

If you don't have Windows Media Player, click here to download a free copy.

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Engine Analyzer Programs

Engine Analyzer (std)

Eng Analyzer Basic Operation Movie Standard Engine Analyzer Basic Introduction to program.

Eng Analyzer Advanced Movie More advanced features of the Standard Engine Analyzer.  These include:  Using <F5> and <Esc> key to navigate quickly through screens, using pre-loaded example components, auto-linking to Circle Track Analyzer to get lap time changes from engine mods (Drag Racing Analyzer and Fuel Economy Calculator can also auto-link), making cam and other parts changes and graphing the results, using the Optimize feature to find a "best" cam, saving changes, and displaying the Users Manual on screen. 


Engine Analyzer Plus

Engine Analyzer Plus Movie  Explanation of some of the 10 features added when you upgrade from the Standard Engine Analyzer to the Engine Analyzer Plus version.


Engine Analyzer Pro

EA Pro Piston to valve Movie  Shows how you can use the Engine Analyzer Pro to estimate piston-to-valve clearance and how this clearance is likely to change by changing engine specs, like rod length, Cam Specs, valve angle, etc.



Engine Tools

Compression Ratio Calculator - Basic Movie  Shows the basic features of the Compression Ratio Calculator.  An excellent starting demo if you are new to computers.

Compression Ratio Calculator - Advanced Movie  Shows the more advanced features of the Compression Ratio Calculator.  The inexpensive yet powerful tool has become very popular with professional engine builders.


Port Flow Analyzer 0.wmv  Intro to Port Flow Analyzer, starting by installing from the CD, starting up the program from the Desktop Icon, and unlocking the program to take it out of demo mode.

Port Flow Analyzer 1.wmv  Intro to Port Flow Analyzer, background on how flow benches work, different types of benches Port Flow can work with, you can do test manually or automatically with a data logger.

Port Flow Analyzer 2.wmv  Intro to our Black Box II data logger, getting it up and running and communicating to your computer, troubleshooting communications problems.  Includes basic info on SuperFlow FlowComs.

Port Flow Analyzer 3.wmv  Discussion of various input screens in the Port Flow Analyzer and how their settings affect the test you will run, what data is recorded, etc.  These screens include Flow Bench settings (very important) and a discussion of Master Bench Specs settings, sensor Calibration Details screen (very important if you are using a data logger), Test Conditions (very important), Head Specs (especially those which affect the test), and Head Details (for recording info only).  As changes are made, we show how this changes the data logging screen on the main screen.  We also show how you can manually edit the rows and columns of data on the main screen.  We also show how to enter some factory calibration specs for the Black Box II into the Calibration Details screen.

Port Flow Analyzer 4.wmv  Discussion of calibrating a Black Box II sensor with a known pressure reading from a manometer.

Port Flow Analyzer 5.wmv  Shows starting an actual test with the EZ Start Wizard and running the test with a Black Box II (a FlowCom would be quite similar).  It shows setting ranges, valve lifts, controlling test pressure, and pressing <F1> to record the data.  It also shows recording port velocity readings, and how the data gets updated on the main screen.  The data and graph on the main screen let you spot problems right as you are running the test.

Port Flow Analyzer 7.wmv  Describes starting an actual test with the EZ Start Wizard and running the test manually, just typing in the data.  It also describes additional features for the SF110 type of bench (blower centered bench), which needs temperature corrections, and has a correction factor used in its calculations based on flowing a known orifice. 

Port Flow Analyzer 8.wmv  Discussion of the EZ Flow system (Black Box II electronics), including calibrating it with a known orifice and running a test with the EZ Start Wizard .

Port Flow Analyzer 9.wmv  Discussion of analyzing data, data and graph on main screen, the meaning of L/D (lift vs diameter ratio), making various types of reports (columns of numbers), using engine specs to produce an Engine Performance Potential report, emailing a report using a PDF format, printing a report with your company logo (and loading a company logo file and company name into the Preferences screen), correcting CFM to a different pressure (like 10" vs 28") than what you measured the head at.

Port Flow Analyzer 10.wmv  Discussion of more report types, like Calculated data including valve and flow area, flow coefficient and flow efficiency, picking different cylinders/average of all cylinders/all cylinders for the report, cylinder to cylinder comparisons, and tests comparing results from 2 different heads (tests).

Port Flow Analyzer 11.wmv  Discussion of exporting reports as ASCII files, for example a file that could be used in EXCEL (tm). 

Port Flow Analyzer 12.wmv  Discussion of making graphs, overlaying different tests using the History Log, overlaying different cylinders, more info on the History Log, different graph features like zooming, the cursor to pin point different values on the graphs, the very useful Flow Area graph combining a cam profile with a flow curve, saving a Graph Format to save your graph settings and scale factors for use later, port velocity maps, printing options like including various data with the printed graph, printer choices, color/monochrome, etc.

Port Flow Analyzer 13.wmv  Discussion of more graph features like the History Log, different graph  line styles including some fancy 3D graph types (good for magazine articles), and emailing graphs.

Port Flow Analyzer 14.wmv  Discussion of opening and saving files from an external drive like a memory stick (good for transferring files from one computer to another), creating a new test name, adding a new folder for storing tests, finding a particular test using the Filter option, using the Advanced feature to move around on the computer to find a test, reading in a file stored with Metric units even though your program is set up for English units, deleting a folder or file.  More file commands include Import and Export (make an ASCII file from a report) and Backup and Restore, email a test file.  Also covered are the Edit, Preferences and Help commands at top of main screen.

Port Flow Analyzer 15.wmv  Shows copying ALL files from one computer to another.  This would be like you bought a new computer and you wanted to get your files transferred to the new computer.  We use the Port Flow Analyzer as the example.  We also show the Port Flow Analyzer's actual Backup and Restore features and how that can do the same thing but more efficiently by just copying the data files you need.


Port_Flow_Analyzer_w_Auto_Valve_Opener.wmv  Shows the running of a complete test with SF300 w FlowCom and motor controller with Auto Valve Opener.


Engine Log Book to CR Calc Movie  Shows how you can use the Compression Ratio Calculator in the Engine Log Book to simplify Compression Ratio, deck height "stack up", bore, Piston Dome, and many other engine builder calculations.


Valve Spring Tester Basic Movie  Shows how you enter the calibration specs, perform a test with video of the actual tester in action, and use some of the features of the Basic version of the software (the Quick Check feature in the Plus version).

Valve Spring Tester Advanced Movie  Shows how you run a full test in the Plus version of the software.  After setting up and running the test, the demo shows the various ways to analyze the data with graphs and reports, print options, and more.

Automatic Valve Spring Tester Movie  Shows the automatic (pneumatic) spring tester in action.


Cam Analyzer Test Prep Movie  Shows several options and features of the Cam Analyzer software for doing various types of cam measurements.  Then it shows step by step how to start a test for measuring a cam with the Cam Test Stand.

Running a Cam Test A Movie  This movie follows what happens directly after the steps in Cam Analyzer Test Prep.wmv, in testing a cam on the Cam Test Stand.  Have your computer volume turned way up, as some of the audio gets pretty low when I set the microphone down to show some of the hardware.

Running a Cam Test B Movie  This movie follows what happens directly after the steps in Running a Cam Test A.wmv, in testing a cam on the Cam Test Stand.  Have your computer volume turned way up, as some of the audio gets pretty low when I set the microphone down to show some of the hardware.

Finding TDC w Bridge Movie  For most cam measurements, the Cam Test Stand measures lift, Duration, acceleration rates, etc.  However, it does not know how the cam gets installed in the engine, so the actual timing (centerlines, opening and closing events, etc) are based on what the user tells the program about the #1 Cylinder's Intake lobe's timing (like #1 Intake has a 108 centerline).  The Cam Test Stand's optional TDC Checking Bridge lets you measure the dowel pin or key location on the cam.  Knowing how these are timed in the engine, it is now possible to know how the cam will be timed in the engine.  Have your computer volume turned way up, as some of the audio gets pretty low when I set the microphone down to show some of the hardware.

Starting/Running a Test with Virtual Follower  The "Virtual Follower" feature is very useful when you have a cam to measure, but do not have the correct follower, like roller diameter.  It is also used when you are measuring a cam for an OHC Rocker Arm valve train, like a "finger follower" for the 2.3L Ford, which has a complex geometry and the Rocker Arm Ratios changes dramatically during lift.  The movie also shows how you can save a file to a new name so you have 2 copies of the same data and make graphical comparisons of the same data being simulated different ways.


Circle Track Tools

Circle Track Analyzer

Circle Track Analyzer Basic Movie  Basic operation of the Circle Track Analyzer v3.5 (applies to v3.6 also).

Circle Track Analyzer Advanced Movie  Explanation of some of the more advanced features of the Circle Track Analyzer v3.5  (applies to v3.6 also).

RC RC+ CTA Intro Movie   Introduction to the Roll Center v3.6 (std and Plus) and Circle Track Analyzer v3.6 programs.  This movie also describes how each of these programs differ from each other, and how all 3 are contained in one program, the Circle Track Analyzer v3.6.  If you purchase Roll Center v3.6 (std or Plus versions), it is the Circle Track Analyzer v3.6 program with different features turned off.


Circle Track Log Book

Circle_Track_Log_Book_Data_Entry Movie  Shows the basics of entering data into the Circle Track Log Book.

Circle_Track_Log_Book_Record_List Movie  Shows how to use the Record List on the left side of the screen to open, delete, find, or set a record as a Baseline for comparisons.

CTLog_New_Record Movie  Shows how to start a new record based on an existing record.  Except for the very first record you create, this is how you will create all your records.

CTLog_Link_Vehicle_Program Movie  Shows how you can link to a vehicle program (like Circle Track Analyzer v3.5) and have calculated results brought back from the vehicle program into the Circle Track Log Book.  This is a very powerful feature, and truly separates this log book from the others.

CTLogBook Modify Program Movie  Shows how you can customize the program for your particular needs, but modify the names of certain inputs or hiding certain inputs or complete sections of inputs. 


Suspension Analyzer

Suspension Analyzer 1 Movie    Intro to Basic Suspension Analyzer (front end only), including unlocking the program, opening and saving files, starting a new file, entering data and seeing changes, inputs vs outputs, etc.

Suspension Analyzer 2 Movie    Suspension Analyzer, Basic version illustrating features of working with Vehicle Specs/Other Measurements to describe the basic suspension, zooming, animating, editting large number of points, preferences, printing, etc.

Suspension Analyzer FV 3 Movie    Suspension Analyzer Full Vehicle features of using a front and rear suspension together, how to add a rear suspension to a vehicle file, front to rear balance (handling ratings), etc.

Suspension Analyzer FV4 Movie    Suspension Analyzer movie with emphasis on Full Vehicle (and some Basic) Optimize features.

Suspension Analyzer Graphs 5 Movie    Demo of the Suspension Analyzer's Graphing and Reporting features (and Optimizing of Bump Steer).


Suspension Analyzer with Circle Track Data Logger Data

DTM-RR Susp Anzr Demo Movie  Shows features in the Road Race/Circle Track DataMite software, and the option of sending shock travel, steering, track map, and other critical data to our Suspension Analyzer for more detailed analysis.


Shock Dyno Basics

Assemble Mast.wmv  When you first receive you shock dyno, you need to do some assembly.  Here we show installing the masts.

Assemble Load Cell.wmv  Here we show installing the load cell bracket.

Assemble Shock in Clevis.wmv  Here we show installing the shock in the top clevis.

Assemble Shock Bottom Clevis and Adjust Height.wmv  Here we show installing the shock in the bottom clevis and adjusting the shock to the proper stroking (testing) position.

Assemble Infra Red Temperature Sensor.wmv Here we show installing the optional IR (infrared) temperature sensor.

Connections and Switches.wmv  Here we explain the AC power and USB connections for the Shock Dyno and some of the Safety Switches.

Running a Shock Dyno Test.wmv  Here we show running an actual Shock Dyno Test.  This is just the basics.  For details on the setup and data analysis, check the User's manual in the program under Help, or by clicking on Shock Dyno users manual here.


DataMite Data Loggers

DTM-RR Susp Anzr Demo Movie  Shows features in the Road Race/Circle Track DataMite software, and the option of sending shock travel, steering, track map, and other critical data to our Suspension Analyzer for more detailed analysis.

DataMite Hardware

DataMite Hardware 1 Movie  Introduction to setting up and understanding your DataMite III USB and/or DataMite Mini USB hardware.  Topics include some software setup and RPM inputs.

DataMite Hardware 2 Movie  Introduction to setting up and understanding your DataMite III USB and/or DataMite Mini USB hardware.  Topics include analog inputs, weather, some software setup and checking for analog channels, thermocouples, engine intake air thermocouple for correction factors, dyno record switch.

DataMite Hardware 3 Movie  Introduction to setting up and understanding your DataMite III USB and/or DataMite Mini USB hardware.  Topics include adding more thermocouple channels, DataMite Mini differences, vehicle installation features and differences, and some simple troubleshooting.

DataMite Software

DataMite Software 1 Movie   Getting your USB DataMite to talk to your computer:  Quick start and paperwork; Use Index in user's manual; Connect USB; Listen for tone; Get Wizard; Install USB driver from CD when asked; Show how to force USB driver; Control panel/system/device manager; Start Setting up DataMite software; Open Example file; Other types of DataMite data loggers; DataMite specs screen; Type of DataMite; Picking com port; Check for communications.

DataMite Software 2 Movie   Inertia Engine Dyno setup; Dyno Settings; Different Types of Dynos; Dyno Gear Ratio; Inertia Dyno Components (typically contain much less inertia than main wheel); Safety considerations; Advantages/disadvantages of inertia dyno

DataMite Software 3 Movie   Inertia Engine Dyno setup (cont);  FAQs on website; Estimate required inertia feature; Estimate required torque; Save as MASTER dyno specs.

DataMite Software 4 Movie   Inertia Engine Dyno DataMite Specs setup; Dyno wheel RPM, 1 magnet; Engine RPM; Other channels, more later; Weather sensors; Save as MASTER DataMite specs; Using 2 RPMs for inertia dyno; Using just 1 RPM by changing dyno type; Preference Eng RPM is Calc RPM.

DataMite Software 5 Movie   Inertia Chassis Dyno Setup:  Dyno Settings; Main roller is what determines MPH; Estimate required inertia; MPH limit; 2 types of chassis dynos (measuring or calculating engine RPM); Inertia Chassis dyno DataMite setup about the same as Inertia Engine Dyno; Test Conditions "Test Vehicle Summary" inputs to determine ratio between engine RPM and dyno RPM if you can not measure engine RPM (Calibrate/Measure; Save; Open; If measuring this RPM; this info is only used for tire/clutch slip).

DataMite Software 6 Movie   Run an actual Inertia Dyno Test:  Page 150 in book, Example 4.1, Fig 4.8 shows overview of test procedure; MASTER Dyno and Master DataMite specs are used for new test; Run a "simulated" inertia dyno test; Watch gauges (Current Readings screen); Use F1, F2 or external switch to start and stop recording; Say either Yes or No to Save Data and different options; New Test screen, make changes if you want; Look at weather and correction factor; Can make changes later also; Test Comments; Dyno RPM settings; Save As to save to new name; Print main screen

DataMite Software 7 Movie    Main Screen Features  Printing main screen data; Changing RPM increments and filtering for main screen in Preferences; Doing comparison between current test and previous test on main screen (Preference setting); Doing 1/4 or 1/8 mile performance projections for current power curve(s) and Preference settings of Vehicle Wt; etc.

DataMite Software 8 Movie  Setting up the Current Readings screen:  First we continue discussing the quick test comparison and ET/MPH simulation on the main screen.  Then we go into options for the Current Readings (gauges) screen like:  Setting channels and scaling for Round gauges, Bar gauges and Exhaust Thermocouple gauges; Setting color warnings; Using the trace recorder.  At end we show how the Master DataMite and Master Dyno specs are used for a new test.

DataMite Software 9 Movie   Absorber Dyno Setup:  Start with correct Example data file for logger; Example 4.3 in book; Fig 4.45; Dyno Specs for absorber dyno; Save as Master Dyno Specs; DataMite Specs; Dyno Tq channel 4 for DataMite III USB; Calibrate Torque channel with "simulated" data and procedure; Save as Master DataMite Specs; Current readings; Set up torque gauge; HP and kW gauges also available.

DataMite Software 10 Movie   Absorber Dyno Test - Importance of marking start/end of run correctly:  Show actual dyno test with bad marking of data and how it affects accuracy of results; Show 4 ways to find the WOT (wide open throttle) section in a test; Show how to correct problems by clicking on Edit (top, left of main screen), then Cut Beginning/End of test Do overlay graphs to compare different accurate and inaccurate results.

DataMite Software 11 Movie  Running a "simulated" Absorber Dyno Test  Show step by step procedure for typical "smooth running" engine; Run a "simulated" Absorber Dyno Test  with dip in RPM ("highly tuned" engine) and show potential problems, and how to correct problems with using a WOT Switch or click on Edit, then Cut Beginning/End of test; Do overlay graphs to compare different accurate and inaccurate results.

DataMite Software 12 Movie   Testing "Details" which effect Accuracy and Performance  Correct for Engine Inertia effects; Correction factor choices; Other things which effect performance: Weather, Engine temp, Engine control, Engine build, 
Torque and HP Peaks (affected by Average and Filtering).

DataMite Software 13 Movie   Making Reports  Section 3.1 in book; Pick channels for reports; Accel times vs channels type report; 
Pick increments, and averaging range Save Report Format; Make report; Print report; Comparison reports (comparing different tests); Making Ascii files, Section 3.2.

DataMite Software 15 Movie   Making Graphs  Section 3.3 in book; Pick channels for graphs; Pick vs time, or RPM, or MPH/KPH for chassis dynos (in vehicle programs, distance is also available); Making Std Tq/HP vs RPM graphs, Doing Overlay graphs (History Log) or graph a single test; Printing Graphs and print preferences; Changing titles and labels; Changing info on printouts; Include your company's Logo on printouts.

DataMite Software 16 Movie   Making Graphs, cont   Time aligning graphs; Zooming/full screen; Set scales; Using the Cursor to find values on the graph; Using the 2 Cursors to find values between the 2 cursors on the graph; Save a set of User Defined graph scales; Save a set of User Defined graph properties (which can also include the scales or "autoscaling"); Emailing a graph; Show Legend (labels on right side of graph) at different font sizes, and how to scroll through them; Grid Styles; Line Styles; Background Color; Data Multipliers (to better show all data at good resolution).

DataMite Software 17 Movie  Calibration of DataMite Sensors/Channels  Special channels are used for certain functions, like Recording or WOT switches; Std pressure sensors; Std thermocouples; Std A/F sensors; Custom "linear" sensors; Custom "non-linear" sensors which need a calibration table; RPM calibrations (number of magnets or cylinders); Special DataMite III commands, like reloading internal thermocouple calibrations; Fuel channel and Spec Gravity input; Preference for how to use 2 Fuel channels for BSFC calculations; DataMite USB sampling rate.

DataMite Software 18 Movie  Preferences  We briefly discuss most all Preference settings which can effect how the program works; how the screens display on various types of computers; how printouts look on various types of printers; Metric vs English units; various options for how the data logger will record data; etc.

DataMite Dyno Controllers

Dyno Controller Hardware Movies

Intro-to-water-brake-controller-Movie   Overview of a Prototype Water Brake Control System:  Description of the various components of the system.

Intro-to-water-brake-controller-Movie (MP4)   Overview of a Prototype Water Brake Control System:  Description of the various components of the system.   (larger mp4 file format, may work on more devices)

Water-brake-controller-running-test-Movie   Running an Absorber Dyno Test with the Controller: Showing how a real test is run.

Water-brake-controller-over-ride-Movie   Safety Over-ride Feature of the Dyno Controller:  Showing how moving the control knob brings control back to the manual control knob.

Dyno Controller Software Movies

Intro-To-Dyno-Control.wmv  Setting up DataMite software for a brake dyno test with the controller.

Programming-Dyno-Controller.wmv  Programming the dyno controller for your particular dyno.

Dyno-Test-Using-Controller.wmv  Running a dyno test with the controller.

Dyno-Test-Using-Controller.avi  Running a dyno test with the controller (larger avi file format, may work on more devices).


A/F Checker Movies

Air-Fuel-Checker-Operation.mp4  Showing the A/F Checker verifying an A/F sensor is working correctly.

Air-Fuel-Checker-Operation.wmv  same movie as above, but in .wmv format and 50% the size



Suspension Analysis

DTM-RR Susp Anzr Demo Movie  Shows features in the Road Race/Circle Track DataMite software, and the option of sending shock travel, steering, track map, and other critical data to our Suspension Analyzer for more detailed analysis.


Drag Racing

4 Link Operation Movie  Shows basic operation of the 4 Link Calculator.  (Higher resolution, slower downloading .avi file.)

4 Link Saving and More Movie  Shows how you save a file after you have created one of your own car and a couple additional features.  (Higher resolution, slower downloading .avi file.)