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Acceleration Runs

G-TECH / Pro Competition User Guide, Release 3.1

•

View Run Again

and return to the Run Viewing Menu

For now, let’s just discard these results, since we are just get-
ting familiar with the G-tech. We will come back to the other
choices later in this manual.

Discarding Run Results

Discarding a run causes you to lose all the information about
the run forever.

Therefore, when you select “Discard this run” from the Run
Save Menu, the G-tech requires that you confirm this deci-
sion (Figure 22).

Figure 22: Confirmation before discarding run

Press

to confirm. The G-tech will discard all the results,

and return to the main window in

Drag Strip Mode

, the G-

Window.

Summary of Contents for Pro Competition

Page 1: ...Update 3 1 1 Dec 2003...

Page 2: ...G Window Tachometer 47 G Window Acceleration Bars 47 Self leveling the G tech 49 Acceleration Runs 51 Measuring Your Runs 52 Stopping the E T clock 54 Viewing Run Results 55 Discarding Run Results 57...

Page 3: ...les 121 Multiple Vehicle Usage 122 Vehicle Specific Data 122 Selecting a Vehicle 123 Renaming a Vehicle 124 Showing the Active Vehicle 125 Pro Features 127 Reaction Time Start Mode 128 Using the Timin...

Page 4: ...to go 53 Figure 16 G tech screen during a run 53 Figure 17 G tech screen at completion of 1 4 mile run 55 Figure 18 G tech Run Viewing Menu 55 Figure 19 G tech 1 4 mile results screen 56 Figure 20 G t...

Page 5: ...h of Speed vs time 79 Figure 40 Graph of Gs vs time 87 Figure 41 Braking and accelerating 87 Figure 42 Cornering Lights Behavior 111 Figure 43 Configuration Mode Menu Summary 138 Figure 44 Drag Strip...

Page 6: ...Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after August 2003 They have already been calibrated in the factory Older G techs will automa...

Page 7: ...OT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after August 2003 They have already been calibrated in the factory Older G techs will automatically r...

Page 8: ...gasoline in their blood and a love for cars Guys who have spent years of sleepless nights to perfect this product It s up to you to decide how far you want to take the G tech You can do 0 60 MPH and 1...

Page 9: ...tool to mea sure performance and safety characteristics of a given vehi cle Use it for that purpose only Tesla Electronics Inc shall not be held liable for technical or editorial errors or omissions m...

Page 10: ...Basics 9 G TECH Pro Competition User Guide Release 3 1 9 Basics This section will give you a basic overview of the G tech Every new user should read this section...

Page 11: ...will refer to the G TECH Pro Competition product simply as the G tech All input to the G tech is done through the buttons on the right hand side Figure 1 G tech front Photosensor measures ambient ligh...

Page 12: ...plug in the supplied serial cable into this port to enable communications between the G tech and a computer Cables The G tech ships with 3 separate cables Figure 3 G tech cables Serial Cable used to c...

Page 13: ...eplace the fuse with a standard 1 AMP fuse Fuses can normally be purchased at any automotive parts store Menus and Scroll Bars Generally pressing will bring up a multi line text menu An example of one...

Page 14: ...tion Mode to tailor the G tech to your vehicle and personal preferences In Drag Strip Mode you can use the G tech to make all sorts of popular measurements including 0 60 MPH Times 1 4 mile E T and tr...

Page 15: ...oks like Figure 5 your G tech is in Configuration Mode Figure 5 Configuration Mode Main Screen If you power on your G tech and the display looks like Figure 6 your G tech is in Drag Strip Mode Figure...

Page 16: ...Basics 15 G TECH Pro Competition User Guide Release 3 1 15 Figure 7 Switching between Drag Strip Configuration Modes Drag Strip Mode Main Screen Configuration Mode Main Screen...

Page 17: ...16 G TECH Pro Competition User Guide Release 3 1...

Page 18: ...ossible This section must be completed to obtain accurate results Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after August 2003 They hav...

Page 19: ...rm Setting Time and Date The G tech has an internal clock that keeps time and date even when no power is applied Whenever you make measurements with the G tech it stores the time and date as well This...

Page 20: ...ct Gtech Setup and press 3 Select Set Date and Time and press 4 Set the date and move between fields and change values Press when done Note Day of week e g Tuesday is calculated automatically and cann...

Page 21: ...it matches your vehicle s own tachometer This step is essential for accurate RPM calibration p 25 1 Start in Configuration Mode 2 Select Vehicle Data and press 3 Select Engine Redline and press Note Y...

Page 22: ...u probably want to disable the shiftlights altogether page 110 Before using the G tech s shiftlights feature you must set the shiftlight setpoint RPM value Some people set the shiftlight setpoint to t...

Page 23: ...vehicle it cannot be performed when powered by the AC power adapter 1 Start your vehicle and plug the G tech into your vehicle s accessory power outlet 2 Put the G tech in Configuration Mode 3 Select...

Page 24: ...horsepower and torque calculations Thus it is extremely important that you enter an accurate weight for your vehicle before using the G tech Please refer to page 160 for details on determining an accu...

Page 25: ...elease 3 1 2 Select Vehicle Data and press 3 Select Vehicle Weight and press 4 Enter your gross vehicle weight Press when done or press to abort and dis card the changes Note Be sure to include weight...

Page 26: ...ust learn the RPM signature at two different points for your particular vehicle before it can measure and record RPMs Follow the steps below to calibrate the G tech for your vehi cle s RPM signature N...

Page 27: ...tinue If not press to cancel and then set the redline in the G tech page 20 5 High RPM calibration Match vehicle RPMs to G tech Then press when vehicle RPMs are steady at the requested value Note The...

Page 28: ...calibration Again match vehicle RPMs to G tech and press when vehicle RPMs are steady at the requested value Note The RPM value shown here may be differ ent than the value your G tech displays During...

Page 29: ...roperly during calibration i e upside down rotated by 90 degrees etc it will reject the calibration and display a message notifying you of this fact Just re attempt the calibration and pay close atten...

Page 30: ...and press 4 Select Calibrate Axes and press 5 You will see the following screen Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after Augus...

Page 31: ...me measurements Note If you are not holding the G tech very still you will see a blinking black bar on the display as shown below If you see a display like this you must hold the G tech very steady un...

Page 32: ...he G tech as shown with the arrows pointing up and press Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after August 2003 They have already...

Page 33: ...on a flat horizontal surface with the display facing up as shown and press Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech units which were shipped after August 2003...

Page 34: ...e G tech as shown read the screen and press 14 The following instruction screen will appear Read it and then press Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION on G tech un...

Page 35: ...m plished this 16 Re orient the G tech as shown and press 17 The following instruction screen will appear Read it and then press Note DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATIO...

Page 36: ...ent temperature is far from the calibration temperature it displays a message as shown in Figure 8 Figure 8 G tech accelerometer calibration request If this text automatically appears on your display...

Page 37: ...e Note In order to obtain accurate measurements the G tech must be mounted properly Please read this section carefully it is very important For directions on removing the mounting bracket from your wi...

Page 38: ...the Bracket Note Steps 1 3 may already be performed on your mount ing bracket at the factory These steps are provided so that you can always properly re assemble your mounting bracket from its pieces...

Page 39: ...ECH Pro Competition User Guide Release 3 1 2 Insert the suction cup into the mounting bracket 3 Turn the suction cup clockwise into the Large Vac uum Nut until approximately 1 4 inch of threads protru...

Page 40: ...oning Nut on the threaded spindle and turn it clockwise a until it is snug on the stem There should be a small gap between the Small Tensioning Nut and the Large Vacuum Nut Small Gaps 5 Now back off t...

Page 41: ...d a place on your vehicle s windshield where you can mount the G tech without affecting visibility Note Make sure the mounting area on the wind shield is very clean and dry otherwise the mounting brac...

Page 42: ...ation of the mounting sys tem 4 At this point the mounting bracket should stay attached to the windshield when you remove your hands If it doesn t inspect the rubber suction cup for cracks or tears an...

Page 43: ...ould only need to use the Small Ten sioning Nut for fine adjustments the first time you mount the G tech After the initial mounting you would secure the clip by turning the Large Vacuum Nut clockwise...

Page 44: ...t the mounting clip for easier view ing please refer to Adjusting the bracket on page 149 9 Plug the large end of the power cord into your vehicle s 12V cigarette lighter socket The G tech will power...

Page 45: ...44 G TECH Pro Competition User Guide Release 3 1...

Page 46: ...G Window 45 G TECH Pro Competition User Guide Release 3 1 45 G Window This section will show you how to use the G tech to monitor your vehicle s performance as you are driving...

Page 47: ...ow during everyday driving to measure straight line performance 1 4 mile 0 60 MPH etc on the Run Window When you first come up in Drag Strip Mode the G tech automatically begins measuring acceleration...

Page 48: ...For the acceleration bars to be meaningful you must have already 1 calibrated your accelerometers page 28 and 2 done at least one acceleration run page 52 Note If you have moved or re oriented the G t...

Page 49: ...r indicates amount of for ward Gs Primary Acceleration Value shows amount of domi nant acceleration Primary Acceleration Direction shows direction of dominant acceleration Figure 13 summarizes how to...

Page 50: ...lip Leave it in exactly the same mounting position that it was in when you did the acceleration run When you get back to the G Window the G tech s accelera tion bars should read very close to 0 000 wh...

Page 51: ...rimary Acceleration Direction is pointing left indicates that lateral acceleration and turn is to the left arrow would point right if vehicle were turning to the right Primary Acceleration Value reads...

Page 52: ...Acceleration Runs 51 G TECH Pro Competition User Guide Release 3 1 51 Acceleration Runs This section will show you how to use the G tech to measure your vehicle s straight line performance...

Page 53: ...er on the G Window Press You will initially see the Staging Screen as shown in Figure 14 Figure 14 Staging Screen Note If your G tech does not look like Figure 14 that means it is configured to use th...

Page 54: ...orward acceleration and auto matically start the E T clock The blinking LED will go off once you have launched successfully Note To avoid false starts the G tech requires a decent amount of oomph off...

Page 55: ...onditions that cause a run to stop Stopping the E T clock Simply letting off the gas and coasting for a brief period will cause the G tech s clock to stop automatically In fact any one of the followin...

Page 56: ...ew the Run View ing Menu Note If you do not reach at least the 60 ft mark during a run no results will be saved and you will be returned immedi ately to the G Window instead Viewing Run Results When a...

Page 57: ...tone that you did not reach during the run After you have reviewed the run milestones press to return to the Run Viewing Menu Figure 18 There are other entries in the Run Viewing Menu that we will exp...

Page 58: ...the other choices later in this manual Discarding Run Results Discarding a run causes you to lose all the information about the run forever Therefore when you select Discard this run from the Run Sav...

Page 59: ...nt you can either scroll down to the menu item labeled Exit and press or you can simply press Now you will see the G tech Run Save menu Figure 24 Figure 24 G tech Run Save menu To save the run with th...

Page 60: ...ength Enthusiasts who store many short runs might encounter this situation If you do encounter this situation you will see the following screen when you attempt to store the 31st run Figure 26 G tech...

Page 61: ...formation such as the track name the vehicle weather conditions etc that is more meaningful to you Refer back to the G tech Run Save menu in Figure 24 How ever instead of accepting the default name th...

Page 62: ...keyboard page 60 to edit the run name First you will erase the original name 3 Now use the keyboard page 60 to enter the new run name 4 To finish either move the selection cursor to the Enter key on t...

Page 63: ...y want to download your runs to the PC p 99 for future analysis before deleting them The length of the stored run determines how much memory it uses inside the G tech longer runs take up more memory Y...

Page 64: ...e or more of your saved runs to make room for the new run Should this occur you will see a screen such as Figure 28 Figure 28 Low on Memory Warning At this point you have two choices If you decide you...

Page 65: ...h room will be freed if you delete the run that is currently selected In this example the G tech is indicating that if you delete the cur rent run which is named 05 08 02 12 557 114 9 it will free up...

Page 66: ...Analyzing Runs 65 G TECH Pro Competition User Guide Release 3 1 65 Analyzing Runs This section will show you how to use the G tech to review and analyze the details of your runs...

Page 67: ...a Stored Run Use the following procedure to recall load a stored run 1 Start in Drag Strip Mode 2 Press to bring up the Drag Strip Main Menu then press to select Stored Runs 3 Press to choose Select a...

Page 68: ...e of the run you selected is on the top line Since View this run is selected press 6 While the run is being loaded the G tech displays a screen such as this 7 Once the run has been loaded the G tech d...

Page 69: ...ons for analyzing your runs Figure 30 Run Viewing Menu You can choose to view your run immediately after complet ing it and you can also recall it later Figure 31 on page 71 provides an overview of ea...

Page 70: ...o Results 60 ft time 330 ft time 0 60 MPH time 1 8 mile E T and trap speed 1000 ft time 1 4 mile E T and trap speed Measuring vehicle s straight line performance p 72 HP TQ vs RPM Graph of Horsepower...

Page 71: ...through out the run p 74 RPM vs time Graph of Vehicle RPMs throughout the run Seeing where you shifted into each gear Measuring time between gear shifts Detecting wheelspin p 75 Speed vs time Graph o...

Page 72: ...eleration throughout the run See how strong your car was pulling accelerating through out the run See how many negative Gs your car pulls while braking hard Detecting wheelspin p 86 Braking Distance G...

Page 73: ...measure and graph your vehicle s horsepower and torque against an RPM range The G tech s HP TQ vs RPM menu entry provides you with a graph of horsepower and torque in an RPM range This is the dyno pl...

Page 74: ...screen Note Vehicle weight is displayed because the G tech uses vehicle weight in the horsepower calculation If you accidentally entered the wrong weight the calculated horsepower will be off Refer t...

Page 75: ...Q curve As the cursor moves the RPM HP and TQ val ues are updated to reflect the current cursor position HP vs time The HP vs time menu entry provides you with a graph of horsepower throughout the run...

Page 76: ...entry provides you with a graph of vehicle RPMs throughout the run This is one of the most used G tech graphs By looking at the data in this graph you can find out how much time you spent in each gea...

Page 77: ...e run Note To finish the replay quickly rather than in real time simply press the button while it is being drawn Once the graph is fully drawn you will see a graph such the one shown in Figure 35 Note...

Page 78: ...our times Figure 37 RPMs vs Time milestones You will see a plus sign on the graph at each place where a milestone occurred Figure 37 When you move the cur sor over a milestone marker the milestone reg...

Page 79: ...ehicle actually slows a bit during shifts so keep this time to a minimum Speed vs time The Speed vs time menu entry provides you with a graph of speed throughout the run You can use this graph to meas...

Page 80: ...ach tic mark on the horizontal axis marks a 1 second differ ence Each tic mark on the vertical axis marks a 10 MPH difference A plus sign marks where each 10 MPH increment occurred on your run Wheneve...

Page 81: ...ll This section will show you how to do it Note In this example we measure 0 40 MPH time but you can use the same procedure to measure the time it takes to reach any speed you wish 1 Perform an accele...

Page 82: ...l you which single gear is the best choice for this speed range Let s suppose you want to measure your 50 70 MPH time This example will show you how to use the G tech to do it Note You can measure any...

Page 83: ...eleration run making sure you hit the speeds you want to measure In this example we are measuring 40 60 MPH so we made sure the driver reached 60 MPH during the acceleration run 2 To view the Speed vs...

Page 84: ...ime we only care about the rising part of the graph dur ing acceleration from 40 to 60 MPH Use the keys to move the cursor over the 40 MPH milestone on the rising part of the graph Press and a box wil...

Page 85: ...xample we demonstrate measuring 0 60MPH 0 MPH You can measure 0 any speed 0 you wish using the procedure described below we have just chosen 0 60MPH 0 MPH for this particular example When doing a test...

Page 86: ...2 Keep accelerating until the speedmark light comes on 3 Immediately brake hard all the way to a stop 4 Keep the vehicle at a stop until the E T clock stops counting about one second once you have co...

Page 87: ...ehicle was pull ing when it was accelerating positive Gs and how hard it was decelerating while braking negative Gs To view the Gs vs time graph for a run select the menu choice titled Gs vs time and...

Page 88: ...gure 41 Braking and accelerating When the G plot is above the horizontal axis it means the vehicle is accelerating When the G plot is below the horizontal axis it means the vehicle is decelerating e g...

Page 89: ...g Distance graph is useful for seeing how many feet it took your vehicle to stop from a specific speed For example you can use this graph to determine 60 0 MPH braking distance This is a common measur...

Page 90: ...by braking hard to a complete stop Make sure that the E T clock continues to run until the vehicle is com pletely stopped If the E T clock stops before the vehicle has come to a stop your results will...

Page 91: ...distance to stop fields are updated Each time the cursor is rolled over a plus sign on the graph the braking milestone information is updated for that milestone In the following graph At the cursor c...

Page 92: ...he 50 MPH milestone and press A box appears around the milestone indicating that braking dis tance will be measured relative to 50 MPH 2 Move the cursor to the right until it reaches the 20 MPH milest...

Page 93: ...92 G TECH Pro Competition User Guide Release 3 1...

Page 94: ...etition User Guide Release 3 1 93 Stored Runs This section will show you how to rename delete and download your stored runs to a PC Refer to Saving a run default name on page 58 for more information o...

Page 95: ...ollow ing View the run results milestones E T graphs etc See Reviewing Stored Run on page 94 Rename the run See Renaming A Stored Run on page 95 Delete the run from the G tech s internal memory See De...

Page 96: ...ge 66 you can rename it as follows 3 At this point the Run Viewing Menu will appear as shown For details on using the Run Viewing menu please refer to Overview Run Viewing Menu on page 68 1 Select Ren...

Page 97: ...m the G tech page 66 you can choose to delete it from the G tech s internal memory This will free up memory so that you can store other runs The procedure to delete a recalled run is as follows 1 Sele...

Page 98: ...to G tech Computer Connection on page 157 for more information on connecting the G tech to a computer You should also ensure that the G tech Performance Analysis System Soft ware PASS is ready to rec...

Page 99: ...is is a drastic step that will cause you to lose all information about the runs in your G tech Be sure this is what you want to do before proceeding Use the following procedure to delete all the store...

Page 100: ...u should connect the serial cable between the G tech and the computer Refer to G tech Computer Connection on page 157 for more information on connecting the G tech to a computer You should also ensure...

Page 101: ...to transfer all the stored runs on your G tech 1 Start in Drag Strip Mode 2 Press to bring up the Drag Strip Main Menu then press to select Stored Runs 3 Choose Download all to PC and press 4 The fol...

Page 102: ...Advanced Features 101 G TECH Pro Competition User Guide Release 3 1 101 Advanced Features This section will show you how to use some of the more advanced features of the G tech...

Page 103: ...the G tech both in U S mode and Metric mode When performing and viewing runs there are also corre sponding measurements in both modes The G tech measures and stores both full sets of measure ments on...

Page 104: ...Mode for his runs All Joe and Simon have to do to compare their runs against each other apples to apples is put their G techs into the same mode U S or Metric before they review their runs When Joe c...

Page 105: ...oose U S Mode or Metric Mode The asterisk indicates the active choice moves cursor makes selection When done select Exit and press Note In this example Metric Mode is the cur rent active mode as indic...

Page 106: ...want and then during an acceleration run the lower left LED will illuminate for 1 second when your vehicle reaches that speed Note The speed mark can be set to any value in the range 20 150 MPH It can...

Page 107: ...ark 1 8 mile mark 1 4 mile mark Each of these marks can be individually enabled or disabled When you have a distance mark enabled and the vehicle has reached that distance the G tech illuminates the u...

Page 108: ...u analyze your runs with the G tech and measure your horsepower and torque vs RPMs p 72 you may determine that the best shiftpoint is not at vehicle redline but at a differ ent value The shiftlights f...

Page 109: ...llustrates how the shiftlights work Note In this example the shiftpoint is set to 5500 RPM Note This example shows the shiftpoints operating while on the G Window The shiftlights also operate while yo...

Page 110: ...Advanced Features 109 G TECH Pro Competition User Guide Release 3 1 109 3 5250 RPM Shiftlights are more intense 4 5500 RPM Shiftlights fully on and blinking rapidly...

Page 111: ...ng disabling the Shiftlight LEDs Refer to page 21 for information on setting the RPM shiftlight shiftpoint 1 Start in Configuration Mode 2 Select Vehicle Data 3 Select Shiftlights 4 Select On or Off b...

Page 112: ...icker the blinking the more Gs you are pulling Figure 42 shows how the Cornering Lights react to different levels of cornering G forces Figure 42 Cornering Lights Behavior You can set the Upper and Lo...

Page 113: ...on a familiar track and in a familiar vehicle WARNING The cornering lights rely on accurate measure ments of lateral cornering acceleration It is important that when your vehicle is at rest on the G...

Page 114: ...de Release 3 1 113 3 Select Cornering Lights 4 Select Set Limits 5 You will see the following screen This screen is where you set the Upper G Limit for the Cornering Lights Use to change the value The...

Page 115: ...e Lower G Limit for the Cornering Lights Use to change the value The value can range from 0 01G to just a little below the Upper Limit you set in the previous step Press when done 7 You will see the f...

Page 116: ...new code You can check the Tesla Electronics website at http www gtechpro com to see if newer G tech firmware code is available Also if you ever call Tech Support you will most likely be asked what v...

Page 117: ...s Note Resetting the G tech to Factory Defaults is a drastic step that causes you to lose all the information that is stored on the G tech Perform this step only if you are sure that you want to delet...

Page 118: ...Quick Setup section again page 66 before using your G tech 2 Select Gtech Setup and press 3 Select Reset To Defaults and press 4 Because this is such a drastic step a screen such as this will appear...

Page 119: ...and receives data Some PCs cannot keep up with the G tech at high baud rates however Therefore the G tech allows you adjust the baud rate so that you can match it to a baud rate on the computer that w...

Page 120: ...ou may want to adjust the contrast on the LCD due to per sonal preferences environmental conditions etc Use the following procedure to adjust your LCD s contrast 3 Select Serial Port Settings and pres...

Page 121: ...on User Guide Release 3 1 2 Select Gtech Setup and press 3 Select LCD Contrast and press 4 You will see a screen similar to the screen shown here Use to adjust the contrast on the LCD When done press...

Page 122: ...Multiple Vehicles 121 G TECH Pro Competition User Guide Release 3 1 121 Multiple Vehicles This section will show you how to use the G tech with up to 4 different vehicles...

Page 123: ...ove the G tech to another vehicle just select that vehicle in the G tech The G tech adjusts everything based on the vehicle you have selected Vehicle Specific Data The first time you select a vehicle...

Page 124: ...hicle Data and press 3 Scroll down and select Choose Vehicle and press 4 You will see a screen similar to the following An asterisk identifies the active vehicle To select a different vehicle move the...

Page 125: ...In fact you were setting information for the first vehicle To rename a vehicle first select the vehicle page 123 to make it the active vehicle Let s go ahead and rename the vehicle to something mean...

Page 126: ...to determine which vehicle is cur rently active in your G tech 4 Scroll down to Change Vehicle Name and press 5 The G tech keyboard screen page 60 will appear Enter the new name for the vehicle using...

Page 127: ...126 G TECH Pro Competition User Guide Release 3 1 3 The active current vehicle is indicated by name across the top of the display...

Page 128: ...Pro Features 127 G TECH Pro Competition User Guide Release 3 1 127 Pro Features This section will show you how to use the most advanced features of the G tech...

Page 129: ...e from a Full Tree also known as the Sports man s Tree or Pro Tree with 0 5 second or 0 4 second tim ing With a Full Tree the three amber lights turn on sequentially and with a Pro Tree all three ambe...

Page 130: ...ack light colors 2 Select Reaction time 3 Select the mode you want The line with the aster isk next to it is the active choice To change the mode move the highlighted selec tion bar to the choice you...

Page 131: ...es Shallow Staging 3 Press to activate the tree After a brief period the simulated staging bulbs will come on On a real track these lights would come on when your vehicle is properly positioned Note I...

Page 132: ...n in succession 0 5 sec onds apart The green light will come on 0 5 seconds after the third and final amber light The G tech s LEDs will illuminate at the same time as do the tree lights on the LCD sc...

Page 133: ...clock starts Third LED on Third amber light on 7 0 5 seconds later the green start light will come on In a perfect launch your vehicle would already be moving at this time and would have traveled exa...

Page 134: ...s just like a Pro Tree at the track 3 LEDs on All 3 amber lights on at once 9 If you do not launch your vehicle within a few sec onds of the reaction time clock starting i e when the third amber light...

Page 135: ...distance that is iden tical to the rollout distance you use at the track your times will be very close to those measured with the track s equip ment Note You should use the same rollout value when do...

Page 136: ...o Features 135 G TECH Pro Competition User Guide Release 3 1 135 3 Enter your desired rollout distance Valid values are in the range 0 16 inches Press to save changes Press to abort and discard change...

Page 137: ...136 G TECH Pro Competition User Guide Release 3 1...

Page 138: ...Additional Info 137 G TECH Pro Competition User Guide Release 3 1 137 Additional Info This section is a collection of tips technical informa tion and reference information for your use...

Page 139: ...uration Mode Menu Summary Configuration Mode Overview Use to navigate menu entries Use to go down one level in menu Use to go up one level in menu p 13 p 128 p 134 p 105 p 106 p 18 p 115 p 128 p 118 p...

Page 140: ...Guide Release 3 1 139 Figure 44 Drag Strip Mode Menu Summary Dragstrip Mode Overview Use to navigate menu entries Use to go down one level in menu Use to go up one level in menu p 94 p 95 p 96 p 97 p...

Page 141: ...tion User Guide Release 3 1 Figure 45 Performing an Acceleration Run Performing an Acceleration Run Return to Drag Strip Mode G Window Save p 58 Rename p 60 Discard p 57 Analyze Run p 68 Finish Run p...

Page 142: ...sure that the G tech is not loose in its mounting bracket and also make sure the mounting bracket is firmly installed A smooth strong launch will typically yield the most repeatable measurements A jer...

Page 143: ...it powered off for at least 12 hours at room temperature 3 Power on the G tech and immediately perform a cali bration p 28 This would be the cold calibration 4 Leave the G tech powered on for at least...

Page 144: ...dings measured by your G tech 1 Start in Configuration Mode 2 Select Calibration and press 3 Select Accelerometers and press 4 Select X Y Z Gs Screen and press 5 The X Y Z Gs screen will appear Note D...

Page 145: ...ld erase the current calibration p 144 and then re calibrate the accelerometers p 28 The X Y and Z fields are provided for engineering support and generally you will not need to look at them The curre...

Page 146: ...o rev the engine to 4000 RPM and press make sure the RPMs are steady right at 4000 RPM before pressing The more careful you are during calibration the better your RPM readings will be Some vehicles wi...

Page 147: ...ehicles the RPM signal is very weak below 1000 RPMs even 1500 RPM on some vehi cles This means that when your vehicle is at low RPMs the G tech may register the default value of 750 This is normal beh...

Page 148: ...t your vehicle is staged and ready for a legal start You can typically continue to inch your vehicle forward about one foot depending on your tire diameter and the Stage Bulb will remain on As you inc...

Page 149: ...ck begins timing Rollout is defined as how far your vehicle moves from a stop when it is staged until the E T clock starts The G tech allows you to set the rollout distance i e how far the vehicle mov...

Page 150: ...your vehicle forward only a few inches after the Stage Bulb comes on you are a deep stager Your rollout will be smaller maybe 2 or 4 inches Adjusting the bracket This section describes how to adjust t...

Page 151: ...unting clip gently If the clip does not pivot easily loosen the Large Vac uum Nut even more otherwise you risk damaging the ball portion of the mounting clip 3 Turn the Large Vacuum Nut clockwise unti...

Page 152: ...atively flat surface within the vehicle Figure 46 Permanent Mounting Stem Use the provided screws to mount the permanent mounting stem in your vehicle Re assemble the mounting bracket as shown in page...

Page 153: ...or information on support and firmware downloads 3 If the website has a newer version of firmware down load it from the website and follow the instructions included with it to re program your G tech w...

Page 154: ...1 4 mile runs Please refer to Horse power Torque G tech on page 157 Q Can I use the G tech with my motorcycle A Yes although the RPMs generally won t work with a motorcy cle Therefore you can get 0 60...

Page 155: ...my G Window don t seem to work properly Make sure that the G tech is calibrated properly and that you are on level ground Also make sure the G tech has not been moved since your last acceleration run...

Page 156: ...PM Calibra tion Tips on page 145 Measure my 0 60 mph time Measuring Your Runs on page 52 and Viewing Run Results on page 55 Use the shiftlights to improve my track times Setting the Shiftlight Set poi...

Page 157: ...Acceleration Bars on page 47 View the results from a pre vious run Loading a Stored Run on page 66 and Viewing Run Results on page 55 I Want To Go To Customize the G tech for my vehicle Multiple Vehic...

Page 158: ...upgrades and the PC Analysis Software Please visit the Tesla Electronics website at http www gtechpro com for updates to the G tech firmware and the PC software Horsepower Torque G tech This section...

Page 159: ...mile For example if your vehicle redline is 6000 RPM launch at 1500 to 2000 RPM for example 3 Shift out of 1st gear before you are halfway to your vehicle s redline So if your vehicle has a 6000 RPM...

Page 160: ...can use the G tech s PC Analysis Software to assist with this Remember that with the G tech repeatability and tun ing is the goal here not necessarily comparisons to mag azines or dynos Vehicle weight...

Page 161: ...y you can estimate it Use the manufacturer s data to obtain vehicle weight check the Owner s Manual or perhaps the Internet Then adjust the weight based on the difference between your car as it was st...

Page 162: ...3 1 161 Example Suppose GVWR 4200 lbs vehicle capacity is 5 people but we have only a driver Thus there are 4 missing passengers which means we subtract 4x180lbs The value 4200 lbs 720lbs 3480 lbs Thu...

Page 163: ...inate when lateral G forces of a specific value are exceeded Cornering Thresholds In the G tech there are two corner ing thresholds The Low Limit is the smallest lateral G acceler ation value that tur...

Page 164: ...amber bulbs are lit together followed by the green starting light Reaction Time The elapsed time from the last amber bulb coming on until the vehicle crosses the starting line Rollout The distance a v...

Page 165: ...tition User Guide Release 3 1 Trap Speed The average speed of a vehicle during the last 66 feet of a quarter mile at a dragstrip For the G tech trap speed is the speed of the vehicle when it crosses t...

Page 166: ...sla Electronics Main Company Website http www gtechpro com G tech Technical Support http www gtechpro com support html support gtechpro com G tech Discussion Forums http www gtechproforums com Tesla E...

Page 167: ...166 G TECH Pro Competition User Guide Release 3 1...

Page 168: ...rforming 52 Renaming before saving 60 Saving 58 Stopping Clock 54 Viewing 55 see also Stored Runs Accelerometers Calibrating 28 Erasing Calibration 144 Temperature Effects 35 Tips 142 X Y Z Gs Screen...

Page 169: ...s FAQ 153 Fuse 12 Glossary 162 Graphs Braking Distance 88 Gs Acceleration vs Time 86 HP Torque vs RPMs 72 HP vs Time 74 Overview 69 RPMs vs Time 75 Speed vs Time 78 G Window Acceleration Bars 47 Intro...

Page 170: ...ing Test 81 PC Communicating With 157 Downloading Runs To 97 99 Permanent Mounting 151 Quarter Mile see Acceleration Runs Quick Setup 17 Reaction Time Disabling No Tree 128 Full Tree 128 Full Tree Exa...

Page 171: ...ecalling Loading 94 Renaming 95 Reviewing 94 Tachometer Calibrating 25 Overview 47 Troubleshooting 146 Temperature Calibration Dependency 35 Timing Tree see Reaction Time Torque During Acceleration Ru...

Page 172: ...is how much rollout the driver uses i e how deeply the driver stages In this example for the sake of illustration we are assuming the vehicle pulls about 0 35g of acceleration continuously throughout...

Page 173: ...are about to use on this pass down the track On the track you have to concentrate on your opponent the officials spectators the Christmas tree your car the launching revs and many other variables We...

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Page 177: ...to material or workmanship defects This warranty does not cover cosmetic damage or damage due to accident misuse abuse negligence commercial use acts of God or modifications of or to any part of the...

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