G-Dyno™ Plus with GPS

Automotive Performance Computers & Data Acquisition System with Accelerometer and GPS

Operating Manual

Nology Engineering, Inc.

1945 S Rancho Santa Fe Rd. San Marcos, CA 92069

www.nology.com

Table of Contents Introduction....................................................................................................................................... 4 Operating the G-Dyno™ Plus with GPS .......................................................................................... 5

Power / Torque ..................................................................................................................... 5 Cornering .............................................................................................................................. 5 Braking ................................................................................................................................. 6 Track Mapping...................................................................................................................... 6 Open Format ......................................................................................................................... 6

Mounting the GPS Receiver ............................................................................................................. 7 Starting a Measurement .................................................................................................................... 8 G-Dyno™ Plus Controls................................................................................................................... 9 Connecting Tachometer and Data Logger Cables .......................................................................... 10 Connecting a Tachometer Input...................................................................................................... 11 Technical Specifications................................................................................................................. 12

Technical Specifications – Data Logger............................................................................. 12 Technical Specifications – GPS Receiver .......................................................................... 12 PC Software ........................................................................................................................ 13 Accessories Available......................................................................................................... 13

Data Logging with the G-Dyno™ Plus .......................................................................................... 13 Measure & Record.............................................................................................................. 13

PC Software .................................................................................................................................... 15 Using the Software ......................................................................................................................... 15 Process File..................................................................................................................................... 18 Output Data..................................................................................................................................... 18 Graphing the Data........................................................................................................................... 19 Using Graph3D............................................................................................................................... 20 Graph3D Controls and Buttons ...................................................................................................... 20

Animation Control .............................................................................................................. 21 Other Functions .............................................................................................................................. 22

Zoom / Pan.......................................................................................................................... 22 Chart Editor .................................................................................................................................... 22 Using 2D Graph.............................................................................................................................. 22 2D Graph Controls & Buttons ........................................................................................................ 23 Check Boxes ................................................................................................................................... 23 Menu Options ................................................................................................................................. 24 Chart Editor .................................................................................................................................... 24 Appendix 1...................................................................................................................................... 26 Appendix B..................................................................................................................................... 28

Support................................................................................................................................ 28 Warranty Information ......................................................................................................... 28 Legal Disclaimer................................................................................................................. 29 Terms of Use....................................................................................................................... 29

G-Dyno Plus Acessories ................................................................................................................. 30 Powersupply ....................................................................................................................... 30 Cigarette lighter Adapter .................................................................................................... 30 Cardreader........................................................................................................................... 30 GPS Receiver...................................................................................................................... 31

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The Nology G-Dyno™ Plus Automotive Performance Computers &

Data Acquisition System with Accelerometer and GPS

Thank you for choosing G-Dyno™ Plus with GPS. G-Dyno™ Plus with GPS includes a sophisticated data acquisition system, accelerometer (g-force) and GPS recorder, and PC software for download and analysis. Warnings! Please read the complete manual before using this product. As with any product for use within a vehicle, DO NOT attempt to operate G-Dyno™ Plus or any attached equipment while the vehicle is in motion. This product is designed for motorsport use only and not while driving on public roads. Use your seatbelt at all times. Obey all traffic laws. Do not mount G-Dyno™ Plus or any supplied accessories any place that may prevent normal operation, or causes the driver injury in the event of an accident. The safest way to use this product is for a passenger to operate the device without distracting the driver. Nology Engineering, Inc. will not be held responsible for any accident caused when using this product. Nology Engineering, Inc. shall not be liable in any way for any incidental or consequential damages to the vehicle, driver, passengers, or other involved parties or property occurring while using this product or any supplied accessories or software. The user agrees to hold Nology Engineering, Inc. harmless for any and all claims arising from the use of this product or supplied accessories or any data gathered through the use of this product. By using this product you agree to these terms.

Nology Engineering, Inc. does not support street racing. Use this product responsibly.

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G-Dyno™ Plus with Optional GPS

Introduction Think about all the data you would like to have to find a quicker way around the racetrack, or to make your car go faster. Find out if all the improvements to your engine resulted in more horsepower. Discover what power your car really puts to the road. The Nology G-Dyno™ Plus with GPS is guarantied to take seconds off your laptime. The Nology G-Dyno™ Plus with GPS performance computer and data acquisition system can do it all, for a fraction other data acquisition systems cost. Combine a high-performance GPS receiver with the powerful G-Dyno™ Plus data acquisition system and end up with a unique combination of INS (Inertial Navigational Systems), high-performance GPS and a powerful data logging system, all with a 3D flexible graphics display function.

This is one of the most powerful combinations in a data acquisition system for racing. • The Nology G-Dyno™ Plus with GPS measures the entire performance of a vehicle using INS

and GPS data, and automatically maps the racetrack as you drive. • Find out what power your car really puts to the road. • Record the speed, distance, horsepower, torque, cornering G’s, braking G’s and more, against

time and track position. • Measure power and torque in one gear, or power and speed / time through the gears. • Measure power and torque in one gear, or power and speed / time through the gears. • Record braking time / distance. Cornering/handling forces can be measured at the same time. • Display data as a 3D-plot - road / track position against time, or full 3D position with altitude. • "Drive" the track with animated data display. Zoom-in to fine-tune your car and driving. • All graphing parameters can be altered and saved with the powerful chart editing PC software. • The G-Dyno™ Plus generates text and csv (Excel compatible) files, so you can easily read and

use the data in other applications. • The high performance custom SirfStar 2 GPS receiver can be used separately with almost any

SatNav software. • The Nology G-Dyno™ Plus with GPS can be used as a data logger or power meter without the

GPS receiver;

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• The small battery powered data logger stores data on a standard MMC card, allowing up to 3 hours of recording on the included 16MB card. You can use up to 128MB cards (12 hour storage).

•Find out what power your car really puts to the road •Map racetrack •Tune vehicle and driving •Before / after tests show if those modifications really are making a difference. •0 - 60, 30 - 50, 50 - 70, ¼ mile or time any other speed combination •60-0 braking time and distance •Measure tire effectiveness and cornering forces. The G-Dyno™ Plus is a precision accelerometer, data acquisition system and GPS. It records hundreds of forward and sideways (lateral) acceleration measurements every second of vehicle movement, 7 analog inputs (throttle position, map sensor, A/F Ratio etc.), 4 digital (injector opening, RPM, etc.), as well as GPS derived vehicle location. Operating the G-Dyno™ Plus with GPS

Power / Torque A dynamometer is basically a device that measures the amount of power being developed by an engine. A good dyno can analyze the entire power band of any engine, but can cost hundreds of dollars to operate. G-Dyno™ Plus allows anyone to get accurate dyno results any time they wish. All you'll need is a flat section of road. How does it work? Basically the G-Dyno™ Plus is a precision accelerometer that records hundreds of forward and sideways (lateral) measurements every few millisecond of vehicle movement. From acceleration and time a lot of power and torque data can be calculated. The user must supply the car's weight, gear ratios, tire sizes, and some other variables, but the rest is pure physics. This is not a power estimating program! G-Dyno™ Plus measures the power of your engine directly by making precise measurements. G-Dyno™ Plus is actually better than a chassis dyno. Instead of measuring the amount of power required to accelerate a drum, you are measuring the amount of power required to accelerate the car. This is really what you are interested in anyway isn't it? Some cars may even perform differently on a chassis (stationary) dyno because the car is not actually moving. Accelerating the car has an effect on the fuel system, oil distribution through the engine, air resistance, turbo airflow etc, etc. G-Dyno™ Plus will allow you to accurately measure the amount of power your car is putting to the ground, which is an invaluable tool when doing aftermarket modifications.

Cornering G-Dyno™ Plus measures lateral (sideways) acceleration. By collecting data on the track, you can see the g force your car handled in cornering, or by driving a constant radius circle you can compare front / rear handling setups, check the results of adjustments to toe in/out, camber and caster. Measure the maximum g forces and find out which brand of tire is best.

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Braking G-Dyno™ Plus is invaluable for braking measurements. By measuring the deceleration, G-Dyno™ Plus can show braking effectiveness at various speeds, conditions and different brake pads.

Track Mapping G-Dyno™ Plus with GPS automatically logs the GPS position of the vehicle. This allows all the parameters – power, RPM, speed, acceleration, and logged data such as AFR, throttle position etc, to be viewed against time and track position. “Drive” the track and check data against any position on the track. Braking point, point of acceleration, apex entry etc. After analysis the vehicle performance data is displayed as a 3D-plot road / track position against time, or full 3D position with altitude! You can "drive" through the test with the animated data display, zoom in on areas to fine-tune your car and driving. All parameters of the graph can be altered and saved with our powerful chart editing tools.

Open Format All the data is in Excel compatible and text formats for easy viewing with other programs. The full NMEA data from the GPS is also stored for use with other SatNav software etc. There really is no other tool which can offer all these features!

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Mounting G-Dyno™ Plus G-Dyno™ Plus must be securely mounted in the car. Velcro is the ideal temporary mounting media. Resting it in the glove box or on a seat etc is not suitable, as it will result in erratic readings, as will mounting on any vibrating or resonant surface. The dash is usually OK, or the bottom of the instrument panel often provides a suitable “niche” Please ensure that it is mounted in such a way as to be safe while driving. G-Dyno™ Plus must be accurately mounted as level as possible, with the cables pointing towards the rear (see figure 1). More than a few degrees off will cause significant G-force errors.

G-Dyno™ Plus should be near horizontal as possible – see “Zero” LED below. Mounting the GPS Receiver The GPS receiver should be fitted with a clear view of the sky – the car roof is ideal! It has a magnetic mount and a soft rubber base – but please take care when fitting and removing.

Plug the GPS receiver into G-Dyno™ Plus. With new alkaline cells, it will run for approx. 2 hours with the GPS receiver, or approx. 2hours without the GPS receiver.

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Alternatively, you can use the supplied cigarette lighter 3 Volt power supply. See figure 2.

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Starting a Measurement • With the GPS receiver powered on, the LED on the receiver will flash red for a minute or two,

then flash slowly green when a good fix is obtained. (Fast green flash means signal nearly locked or nearly lost). The more time you allow for a good GPS fix, the better the results will be. 5 minutes in a position with good all round sky visibility is typical for a new location.

• Ensure your G-Dyno™ Plus has fresh AA batteries, and the MMC is plugged firmly in. Turn G-Dyno™ Plus on – see buttons and LEDs below. You MUST connect the GPS receiver before turning G-Dyno™ Plus on, as it detects the GPS receiver at power on. Note that you can use G-Dyno™ Plus for logging and straight acceleration tests without the GPS receiver connected. G-Dyno™ Plus will bleep approx. once a second if the signal from the GPS is good – i.e. the green GPS led is flashing. Plug in the tacho cable, and either of the logging connectors if used. If you use a tacho input, the tacho LED will flash if the engine is running. To begin measurement, once there is a good signal, G-Dyno™ Plus requires a short calibration procedure. This MUST be done at the start of each measurement run. It’s very simple:

1. Ensure G-Dyno™ Plus is level (red LED out) and the vehicle is on a level section of track.

Press record until you get the double beep acknowledgement, and the status LED flashes. 2. Wait about 2 seconds while G-Dyno™ Plus auto-zeros. 3. Drive smoothly and quickly (smooth is more important than quick) to about 15-20 mph.

That’s it. You are ready to collect data. Remember that G-Dyno™ Plus with GPS gathers a LOT of data – keep test runs to as short as is sensible to keep file sizes down – otherwise you will need a lot of time to study all the data. G-Dyno™ Plus will store up to 3 hours of data with the supplied 16MB card. That’s over 1,000,000 measurements. • At the end of a test, press record again to get a single beep and the status LED will return to

constant on. • For cornering measurements it’s good to drive in a constant circle (many tracks have these – or

mark your own out somewhere suitable) at a gradually increasing speed until the car breaks away (DO NOT do this unless you are confident and trained to handle a car under such conditions). Then process the collected data and see the maximum g-force.

Please note that the best results come with good GPS signals – avoid built up areas, and high tree coverage! Once you have finished testing, it’s ok to turn the G-Dyno™ Plus off. The data is stored permanently until cleared or the card is full. Download the data or read out the memory card. (you can keep data sets on different cards if you do a lot of testing in one day)

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G-Dyno™ Plus Controls • Insert 2 fresh AA cells into the rear of the G-Dyno™ Plus. • Ensure the MMC is in place. It plugs in label up on the right hand side -see figure below. • G-Dyno™ Plus auto detects whether the GPS receiver is connected when turned on. • Connect the logger terminal blocks and tach input (if used) - see figure below. • To power on, press the “On” button, the G-Dyno™ Plus will beep slowly twice with no

receiver (if you are downloading for instance, or logging data without GPS), or once then two quicker beeps if GPS is connected. The G-Dyno™ Plus will then beep about once per second while GPS data is received.

• The power/status LED will come on, and the RED “Zero” led will indicate front/rear level of the unit. It goes out when level.

• The tach LED will flash if valid tach data is received. This can be from the ECU coil drive out, or directly from the ignition coil (use supplied crocodile clips), or the optional inductive clamp on a spark plug wire.

• If both Zero and Status LEDs flash, G-Dyno™ Plus either has no MMC installed, or the MMC is not installed correctly. (if connections are dirty wipe off with dry cloth).

• To turn off, press and hold the “on” button until the G-Dyno™ Plus beeps, then release. If you are in record mode, the G-Dyno™ Plus will not turn off, just cancel record mode. In some modes, the OFF beep continues until you release the button.

• To record, press the record button, until you receive a double beep in acknowledgement. To end recording, press for a single beep.

• The G-Dyno™ Plus will record successive runs until the card is full (the red “Zero” LED will flash fast) or cleared, or a new card inserted. Note: G-Dyno™ Plus will only sense cards as it is turned on. Cards must be correctly initialized - see below. Note: Cards initialized directly – i.e. while in a PC card reader – need to be erased before use.

• To erase MMC in the G-Dyno™ Plus, press and hold “rec” before pressing on. Release the on button but hold "rec" until the Zero LED starts to flash. It will flash until erase is finished, then beep and resume normal operation.

• For downloading the data, connect the separate 9 way D to RJ11 cable between a PC and the G-Dyno™ Plus, then follow the instructions for the PC software. As this is a serial link, data transfer can be very slow. We recommend using a separate MMC reader. The Nology card reader is low cost and can be used to read all card types (cameras, flash memory, etc.).

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Connecting Tachometer and Data Logger Cables Logging inputs are via the pluggable screw terminal assemblies, one 8 way for analog data, one 5 way for digital data. The tachometer cable is plugged via the 3.5mm front panel jack next to the serial / GPS input (make sure you use the correct socket). Logging inputs are as follows: Function Specification Digital Input 4 0 – 20V, threshold 2V Digital Input 3 0 – 20V, threshold 2V Digital Input 2 0 – 20V, threshold 2V Digital Input 1 0 – 20V, threshold 2V Ground Analog Input 7 0 – 12V, resolution 10mV Analog Input 6 0 – 5V, resolution 5mV Analog Input 5 0 – 5V, resolution 5mV Analog Input 4 0 – 5V, resolution 5mV Analog Input 3 0 – 2.5V, resolution 3mV Analog Input 2 0 – 2.5V, resolution 3mV Analog Input 1 0 – 2.5V, resolution 3mV Ground We advise that you ground any unused inputs when logging, with wire links to ground terminal.

Datalogger inputs for analog & digital signals

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Connecting a Tachometer Input This can be a RPM signal from the ECU, the negative (-) terminal on the ignition coil, or using the optional inductive pickup to a spark plug wire.

Tachmeter input cable If connecting to an ECU output or directly to the coil negative, use the supplied crocodile clip connections and leave the inductive clamp connector unconnected (See important note below). To connect to the coil, clip the red wire to the coil "-" terminal and the black wire to a good ground. Or clamp the optional inductive pickup to any spark plug wire.

You need to set the sparks per rev. setting in the G-Dyno™ Plus PC software for your vehicle. For normal 4 stroke this is 0.5, 2 stroke is 1. Waste-spark and coil-on-plug ignition systems will need appropriate settings. Setting Sparks per Rev in PC Software RPM Signal directly from Ignition Coil RPM Signal from Spark Plug Wire using Inductive Clamp (One coil and distributor) (One coil and distributor) 4 Cylinder = 2 4 Cylinder = 0.5 6 Cylinder = 3 6 Cylinder = 0.5 8 Cylinder = 4 6 Cylinder = 0.5

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Technical Specifications The Nology G-Dyno™ Plus with GPS performance meter and data logger with 16MB MMC memory. (larger memory optional).

Technical Specifications – Data Logger - Full GPS data.(RMC,GSA,GGA,VTG,GSV,GLL messages) - X/Y acceleration 100 samples per second. - 7 channels of 10 bit analog data. Example: air/fuel ratio, throttle position, temperature sensor,

oil pressure / temp, knock sensor etc. All recorded at 12.5 samples per second. - Can be set for different signal levels. Factory preset with one 12V input, three 5 Volt inputs and

three 2.5V inputs. - 4 channels of digital data. Example: injector pulses, speed sensors, gear sensors, lap indicator

etc. Recorded at 100 samples per second. - All wiring by screw terminal block, for ease of installation and removal. - 2 inputs can be configured as differential input (factory option). - Tach input - suitable for ignition clamps etc. - On / off by push button with audible confirm. - 24 hour life from 2 AA cells (data logging mode, without GPS receiver powered). 2 hours with

GPS receiver on. - Comes complete with software (Win 95/98/2000/XP) serial data cable, GPS receiver, 12 Volt

cigarette lighter PSU and 16MB MMC. The high-precision two-axis accelerometer is accurate to 0.005 g with a resolution to 0.01g. The small battery powered G-Dyno™ Plus data logger stores data on a standard MMC card, allowing up to 3 hours of recording on the included 16MB card. (128MB cards 12 hour storage).

Technical Specifications – GPS Receiver 12 Channels "All-In-View" Tracking Cold/Warm/Hot Start Time: 45/38/8 seconds Reacquisition Time: 0.1 seconds Accurate 1PPS Output Signal Aligned with GPS Timing Trickle Power Enabled for Power Saving Multi-path Mitigation Hardware Superior Sensitivity for Urban Canyon Environment On-board RTCM SC-104 DGPS and WASS Demodulator SiRFstarII Architecture Red / green fix available indicator LED. Field Software Upgrade Supported Fully water-proof Rubberised magnetic base for mounting on car Visual GPS software for PC and Winfast pocket PC software included.

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PC Software PC software to download logged data, create text and spreadsheet (Excel) files.

Accessories Available MMC/CF/SD/SM USB interface card reader. MMC memory 16, 64, or 128MB. Inductive RPM clamp. 12 Volt DC Power Supply GPS receive Data Logging with the G-Dyno™ Plus

Measure & Record * 0-60 mph / 0-100 kmph timing. * 30-50, 50-70 or any other speed combo. * Standing 1/8 or ¼ mile times and speeds. * 60 mph - 0 or any other braking times and distance. * Horsepower and Torque - real road horsepower. * Before / after tests show if those modifications really are making any difference! * Peak and average cornering G’s * Measure tire effectiveness * Braking G’s * GPS data * Record data from 11 other sensors

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PC Software

The PC software tool enables various information to be derived from the data stored in the G-Dyno™ Plus. This assumes you are familiar with G-Dyno™ Plus and have read the G-Dyno™ Plus instructions for use. G-Dyno™ comes with three main programs, installed from the CD-ROM. DStar3D and DStar2D are powerful graphing tools – see later. The G-Dyno™ Plus PC Software is designed to analyze data previously captured by G-Dyno™ Plus. Please observe all the warnings in the G-Dyno™ Plus documentation when making test runs. Please use the help and tips provided, and use ToolTips – you can get help for operating the software by pausing the mouse over active (not grayed out) controls. The G-Dyno™ Plus is designed to be flexible and simple to use. G-Dyno™ Plus is updated regularly with new features and improvements. Please check our website (www.nology.com) for updates. The G-Dyno™ Plus Software is installed from the supplied CD. Using the Software First – record some data with G-Dyno™ Plus. Start the PC Software GDynoGPS.exe and you will see this screen: Click the download button next to the file button to bring up the download window. This will automatically extract all the runs in G-Dyno™ Plus memory to separate files for processing. You can read a file copied from the MMC via a card reader – press the open file button. - Use this option to re-process *.dbi files if needed.

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Alternatively, use the serial link. Connect G-Dyno™ Plus to the PC with the supplied serial cable. Select the correct COM port with the pull down menu. (Showing COM port 2 in the illustration). The MMC must be in the G-Dyno™ for this. Click on Link to establish communication. Next, press Play to download data from the recorder to the PC. The green status LED will flash during download, the red LED will flash if your PC is at all busy during download, and data has to be re-sent.

The program will prompt you when it needs to save the data. You can use the default promoted filename (derived from the date) or enter your own. Finally you can clear the recorder's memory if you want. It may be better to process the data first, in case of any problems. You can also erase the card as detailed in G-Dyno™ Plus instructions above. Do NOT erase the file from the MMC memory in Windows Explorer. There should always be a “*.dat” file on the card. Don’t delete it. Note: To use a new card, please format the MMC as FAT (may be labelled as FAT16) not FAT32 in Windows Explorer. After format, use the “Initialise MMC” function on the download window file menu.

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After downloading your data, close download window, and return to main G-Dyno™ screen. All the controls, etc, have ToolTips to help you (just hover the mouse over each item) plus the “Status” box tells you what’s happening – or sometimes what you’ve done wrong! Please also read the help tips the Software brings up – and read the Torque tips in the help menu. Click file, and open a G-Dyno™ Plus data file. This will be a “*.dbi” file from downloaded data. Next, fill out the boxes for the Vehicle Data and the Environment Data. Add any information such as date or which car you used in the “user comment” field, and be sure to select the correct units – metric or imperial – from the pull down. All this information is stored in a "*.ini" file – with the same name as the data file – and it will subsequently be opened automatically with the data file. See appendix for extra information. You can change the data at any time.

Set the tachometer pulse per rev (Pulses/Rev). – typically 0.5 for 4 stroke normal ignition, or 2 for a 4 cylinder multi-spark ignition. If the RPM values shown as idle / max are not roughly correct, adjust this by altering the Pulse/Rev. setting until it looks about right. Increasing the Pulse/Rev. setting will reduce the RPM. Remember that torque is calculated from RPM so that if the RPM values are wrong, so are the torque values. Setting Pulse/Rev. in PC Software The RPM Signal directly from the Ignition Coil (One coil and distributor) 4 Cylinder = 2 6 Cylinder = 3 8 Cylinder = 4 The RPM Signal from the Spark Plug Wire using the Inductive Clamp (One coil and distributor) 4 Cylinder = 0.5 6 Cylinder = 0.5 8 Cylinder = 0.5

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Torque values will also be incorrect if the clutch is slipping or disengaged. You can see this easily on the graph. If there is already a “*.ini” file for this data, the values will be loaded automatically. Process File You are now ready to process your file – click the Process File button. The various displays on the G-Dyno™ Plus screen will update as the data is calculated. The status box at the bottom gives progress and error information. Once it says “Done” you will have a set of output data files in the same folder as the run data file. Output Data Each analysis will add the following files to the directory where the data file was opened. Assume your data file was “test1.dbi”. dptest1.txt: This is the text file containing x, y (front/lateral) acceleration data, at 0.01sec

intervals dptest1.ddp: Processed data output, in text file format, and can be opened with notepad etc. dptest1.ini: This file contains the vehicle and environmental data you entered. You should

not need to alter this file. dptest1.csv: This is the output log file in a format suitable for Excel or other spreadsheets.

You can use this to create your own graphs, data sets etc. On most PCs double clicking a "*.csv" file will open your spreadsheet program.

dptest1_p.csv: This is the processed data file in .csv format – same data as .ddp file. dptest1.dbd: Formatted data for racegraph. dptest1.pin: Formatted data for racegraph.

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Graphing the Data Once the data is processed and the output data files created, you can use the PC Software's powerful graph tool to examine and print your results. You can open the appropriate files with Graph2D and Graph3D for full graphing of logged & processed data. Click the Quick Graph button to the right of Process File. This button is grayed out until a file has been processed. G-Dyno™ Plus’s graph window will open. Please read the help tips that G-Dyno™ Plus displays.

Double click the chart (this applies in all the Graph programs) for the powerful chart editor – see later for details. To zoom in on the graph, enter new values for min and max "x" (Time) on the graph. “Y” values are normally cropped to zero to make more readable graphs, but you can adjust this with the min y setting. The “average” setting allows you to adjust the curve smoothing. The graph will automatically re-plot with the new settings. Hovering the mouse over the graph will display the curve exact values at the point. To print a graph, you can use the Print menu, which allows print preview and printer setup. To print a graph with the mouse over the graph, which will print the curve values as well, use “alt p”.

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Using Graph3D This shows a typical chart opened in Graph3D.

Graph3D Controls and Buttons Print - Opens print preview / control dialogue for both graph screens. Open File - Select a *.gps file to open. If this data has been graphed before, then you will be prompted to open the chart setting from last time, or to work from default settings. If there is no matching *.pin file (i.e. if the data has not been processed, or the GPS file is from another source) then a warning will be displayed. 2D / 3D button – Toggles the main display from 3D (x,y against time) to an ordinary 2D map like plot as shown. The label changes to reflect the toggled state.

Z/Y button - Toggles main graph window Z / Y axes. The label changes to reflect the toggled state. This changes from a plot with time as the “up” axis, to one with time as the front / back axis. This shows the result. It also shows the graph pad in use.

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3D / Speed button - Alter the second graph window from Speed to true 3D using GPS altitude data. Note that the G-Dyno™ GPS receiver shows altitude as height above mean sea level. The label changes to reflect the toggle. Graph Pad - Toggles sub second graph display panel on / off. Double click on this chart as usual for the Chart Editor (see below) to print etc. Graph pad can be set as always on top with the 'pad on top' check in the options menu. Default is “always on top”. The zoom slider as the top of graph pad will zoom the time axis quickly and easily.

Animation Control You can move the cursor on the main graph with the slider, or enter a value in seconds in the box. Data at the cursor point is shown at the bottom of the graph. Setting a value in the speed box, and pressing the Animate button will automatically "drive" around the test data. You can see the red animation cursor here. The graph pad shows detail of the data.

Write to jpeg - "Writes JPEG files of the current graph displays to disk.

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Other Functions

Zoom / Pan Click and draw a rectangle with the left mouse button held down, from top left to bottom right to zoom in on a chart area. The area that is boxed as you drag the mouse will be enlarged, as shown. To zoom out, draw a rectangle with the left mouse button held down, from bottom right to top left – i.e. the reverse of zoom in. Pan by placing mouse in chart area, press & hold right button, then move mouse to move the graph. For full 3D aspect control and enhanced zoom / pan, use the 3D tab in the Chart Editor. Chart Editor Double click in the chart area as usual to bring up the chart editor panel. When you exit Dstar3D the settings are all stored in a *.tee file. If you load the same GPS data again, you will be prompted to use or ignore this data. If you delete the *.tee file, then you will not get prompted! Using 2D Graph

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2D Graph Controls & Buttons

Open File - Select a *.dbd file to open. If this data has been graphed before, then the settings used will be loaded. If there is a *.pin file of the same name (*.dbd is created when data is downloaded, *.pin after processing by race32+.exe) it will be loaded as well.

In this case the Torque / Power and RPM checkboxes will be made available.

Print - Opens print preview / control dialogue for both graph screens. Also use File Print preview option.

hart Zoom / Pan - Turns on / off zoom and pan. These functions are also available via the c

editor (see below). Icon Changes to “rulers” when on.

Pan by placing mouse in chart area, press & hold right button, then move mouse to move along the graph. This is really useful for moving along a graph when zoomed in. Zoom - Draw a rectangle with the left mouse button held down, from top left to bottom right to zoom in on a chart. To zoom out, draw a rectangle with the left mouse button held down, from bottom right to top left. Note - this zooms displayed chart - the best way to zoom in on a new part of the chart is to enter new values for time scale min & max.

Set scale, offset and average - Click to show scale / offset / average. Allows each trace on the chart to have a separate

scale applies, to be offset up or down the chart for clarity, or to be averaged. This data is saved automatically. You can clear all settings with the Options - Reset Stored Setting menu option. Use this to “magnify” traces - for example to fit RPM and X acceleration more clearly on the chart. Check Boxes Click in any box that isn’t grayed out to add power, torque, speed, RPM and X/Y acceleration to the graph. Note that digital signals are displayed as high / low - they are scaled automatically to fit the left hand axis, and are NOT real values. High is >2.5V, low level is < 2.5V. You can alter this via the “axis” settings in chart editor. Use the time and left scale boxes to alter the display range, for instance to examine a particular time. Altering these values will turn off auto scale (see menu options below). This is the best way to focus on a small part of a chart. To return to the full view of the chart, click Options - Auto Scale.

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Check the “trace on” box to turn on the auto display of values at the bottom of the chart. As you move the mouse across the chart area, the time and corresponding vertical axis value selected in the trace pull down menu are shown at the bottom of the chart. The pull down menu allows selection of which trace is read. With trace on, and the mouse in the chart area, press spacebar to set current trace as a reference. It will then show the current values and the difference from the reference. Menu Options File Open file Print Preview Exit Options Auto scale (default on). Turn off to set scale manually. Chart editor - also accessed by double click in chart area. Add title - add a title to the chart. Also accessed via the chart editor. Reset stored settings - clear chart alterations to default. Chart Editor Using the chart editor (by double clicking on the chart) you can customize many chart aspects. These instructions apply to RaceGraph and G-Dyno™ Plus quickgraph.

This example shows selecting the series tab, then selecting the chart line from the pull down menu. “Lap_3D” is shown selected. Note that not all series are visible, as some are only used for internal calculations. Generally full names display, such as “Speed” whereas “Spd” is internal. If the change does not seem to work, try with the next series. Click on “Line” then set the color, style etc. Most changes happen as soon as you make them so it’s easy to experiment with the way the chart looks. Other tabs in the “series” section change other aspects of the way the chart lines are displayed.

See also the chart editor help.

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The “Chart” tab allows control of the appearance of the chart and background. The “general” tab, shown here, controls zoom, scroll and print preview settings. If you turn off zoom or scroll, this will also stop the normal right click zoom and scroll in DStar2D and DStar3D. The Chart “axis” tab controls size shape, location and labeling of the axes. In the example here you can see settings for left axis scale. You can customize the max/min scales here, which is another way to “zoom” in on a section of the chart.

Other tabs on the chart section similarly control the look of the chart panel, titles and labels – it’s very useful to put a good description of your graph in the “title” section. Shown here is the “zoom” tab which allows you to create custom 3D graphs.

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Other useful sections are the export & print tabs. Export allows charts to be saved to many different file formats (JPEG, etc).

Appendix 1 Some Theory The G-Dyno™ Plus uses accelerometer derived information. We feel it’s important to understand the potential for errors in this type of system, to help get the best results. Let’s start by considering acceleration. It’s possible to calculate a variety of information from acceleration data. Newton’s laws of motion tell us, for example, that: Force = mass times acceleration. So, given the vehicle’s mass, we can calculate the force required to achieve that acceleration. We can also calculate velocity from acceleration and time, and so on. However it’s important to realise the error factors in these calculations. Velocity is derived by integrating acceleration. Distance is derived by integrating velocity. The following table shows the distance (position) and velocity error after 1 second, 10 seconds and 1 minute for varying acceleration errors.

1-D Position Error TableAccel. Error Vel Err (1 sec) Pos Err (1 sec) Vel Err (10 sec) Pos Err (10 sec) Vel Err (1 min) Pos Err (1 min)

0.01% 0.0035 0.0005 0.035 0.049 0.21 1.770.10% 0.035 0.005 0.353 0.49 2.12 17.650.50% 0.177 0.025 1.765 2.45 10.59 88.271.00% 0.353 0.049 3.531 4.90 21.19 176.55

Note:Acceleration error in Gs. Velocity Error in kilometers per hourPosition Error in meters All commercial acceleration devices use similar technology and claim similar accuracy. Typically these devices have a “noise” of around 0.005G, or 0.5%. The result is that to retain adequate accuracy, measurements should be between 10 seconds and 1 minute. This is fine for 0-60, standing ¼ mile etc measurements. To get better accuracy, G-Dyno™ Plus with GPS also uses GPS data to gain very high levels of accuracy in vehicle location and data measurement. The initial data on the vehicle is clearly very important, which is why measurements are best taken from a standing start. This makes the initial conditions – zero velocity and zero G acceleration – easy to know.

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The zero offset error is vitally important – this is the accuracy to which the acceleration is set to “zero” in a stationary vehicle before a test run, and will cause errors as shown above – and as it’s a fixed error it will not average out! Finally, any deviation from level will cause errors. A downward slope will appear as a decelerating force to an accelerometer, or front lift will add a positive error. External forces, such as wind, will also introduce errors. Hence it is best to make a measurement by averaging two runs at least in opposite directions on your selected track. Unless measuring cornering force, it’s also important to keep to a straight line.

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Appendix B

Support Technical support is offered on this product via email. Please note technical support cannot assist you in diagnosing and repairing your vehicle. When contacting technical support please provide the following information:

• Problem encountered, be specific as possible. List any error messages displayed by the software.

Warranty Information Nology Engineering, Inc. warranties the G-Dyno™ Plus for 1 year. Damage caused by misuse or modification is not covered. Nology Engineering, Inc. is not responsible for damage to vehicle caused by misuse or otherwise. Nology Engineering, Inc. sole liability is limited to the repair or replacement of the G-Dyno™ Plus while under warranty. 30-day money back guarantee. If for any reason you are not satisfied with the G-Dyno™ Plus , you can return it to the original place of purchase for a refund less shipping charges. The G-Dyno™ Plus must be undamaged and contain all original packing, supplied materials, and the original receipt or packing slip. No refunds after 30-days. Email or call for a RMA before returning. Returns received without an RMA number will be refused. When contacting Nology Engineering, Inc. for an RMA please provide the following information:

• Reason for returning the G-Dyno™ Plus. • Problem encountered, if any. • Original Invoice Number

Nology Engineering, Inc. 1945 S Rancho Santa Fe Rd San Marcos, CA 92069 Or email for an RMA at: sales@nology.com.

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Legal Disclaimer The Software, and all accompanying files, data and materials, are provided "as is" without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the Software is with you. Should the Software prove defective, you assume the cost of all necessary servicing, repair or correction. IN NO EVENT SHALL NOLOGY ENGINEERING, INC. BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL OR INDIRECT DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF; USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE OR HARDWARE.

Terms of Use The Software contains proprietary and confidential information that is protected by applicable intellectual property and other laws. You will not modify or sell works based on the Software. The Software is for your personal use. We grant you a personal and non-exclusive license to use the object code version of the Software on a single Palm handheld computer; provided that you do not (and do not allow any third party to) copy, modify, reverse engineer, create derivative works from, assign or otherwise transfer any right in the Software; and you will not modify the Software by any means.

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G-Dyno Plus Acessories

Powersupply

Cigarette lighter Adapter

Cardreader

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GPS Receiver

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