G-Tech Pro Competition User Manual

Update 3.1.1 Dec. 2003

Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

G-tech Front Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

G-tech Back Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Menus and Scroll Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Quick Setup and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Setting Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Setting Vehicle Redline. . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Setting the Shiftlight Setpoint. . . . . . . . . . . . . . . . . . . . . . 21

Setting Vehicle Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Calibrating RPMs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Calibrating Accelerometers . . . . . . . . . . . . . . . . . . . . . . . 28

Calibration & Temperature . . . . . . . . . . . . . . . . . . . . . . . 35

Mounting the G-tech . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Assembling the Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Mounting the Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

G-Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Drag Strip Mode Basics . . . . . . . . . . . . . . . . . . . . . . . . . . 46

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

Saving a run / default name. . . . . . . . . . . . . . . . . . . . . . . . 58

G-tech Stored Runs Capacity . . . . . . . . . . . . . . . . . . . . . .59

The G-tech Keyboard Screen. . . . . . . . . . . . . . . . . . . . . .60

Renaming and saving a run . . . . . . . . . . . . . . . . . . . . . . . .60

Checking Free Memory . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Saving a run / low on memory . . . . . . . . . . . . . . . . . . . . .63

Analyzing Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Loading a Stored Run . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Overview — Run Viewing Menu . . . . . . . . . . . . . . . . . . . 68

Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

HP & Torque vs RPMs. . . . . . . . . . . . . . . . . . . . . . . . . . . .72

HP vs time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

RPM vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Speed vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Measuring 0-40 MPH, etc.. . . . . . . . . . . . . . . . . . . . . . . . .80

Measuring 50-70 MPH, etc.. . . . . . . . . . . . . . . . . . . . . . . .81

Measuring 0-100-0, etc. . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Gs (Acceleration) vs time . . . . . . . . . . . . . . . . . . . . . . . . .86

Braking Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Stored Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Recalling a Stored Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Reviewing Stored Run . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

Renaming A Stored Run . . . . . . . . . . . . . . . . . . . . . . . . . .95

Table Of Contents

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Deleting a Stored Run . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Downloading A Stored Run . . . . . . . . . . . . . . . . . . . . . . 97

Deleting ALL Stored Runs. . . . . . . . . . . . . . . . . . . . . . . . 98

Downloading All Stored Runs. . . . . . . . . . . . . . . . . . . . . 99

Advanced Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Setting U.S. or Metric Mode . . . . . . . . . . . . . . . . . . . . . 102

Setting the Speed Mark . . . . . . . . . . . . . . . . . . . . . . . . . 105

Setting the Distance Marks . . . . . . . . . . . . . . . . . . . . . . 106

Shiftlights Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Enabling / Disabling Shiftlights . . . . . . . . . . . . . . . . . . . . 110

Cornering Lights Overview . . . . . . . . . . . . . . . . . . . . . . 111

Setting the Cornering Lights . . . . . . . . . . . . . . . . . . . . . 112

Displaying Firmware Version . . . . . . . . . . . . . . . . . . . . . 115

Resetting to Factory Defaults . . . . . . . . . . . . . . . . . . . . 116

Serial Port Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Adjusting the LCD Contrast . . . . . . . . . . . . . . . . . . . . . 119

Multiple Vehicles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Timing Tree Modes. . . . . . . . . . . . . . . . . . . . 129

Setting the Rollout Distance . . . . . . . . . . . . . . . . . . . . . 134

Additional Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Tips for Improving Accuracy. . . . . . . . . . . . . . . . . . . . . .141

Accelerometer Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

X-Y-Z Gs Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

Erasing Accel. Calibration . . . . . . . . . . . . . . . . . . . . . . . .144

RPM Calibration Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . .145

Drag Strip Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . .147

Adjusting the bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . .149

Removing the bracket . . . . . . . . . . . . . . . . . . . . . . . . . . .150

Permanent Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . .151

Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . .153

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

I Want To... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155

G-tech-Computer Connection. . . . . . . . . . . . . . . . . . . .157

Horsepower, Torque & G-tech . . . . . . . . . . . . . . . . . . .157

What does my vehicle weigh? . . . . . . . . . . . . . . . . . . . .160

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

For more info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

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List Of Figures

Figure 1: G-tech front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 2: G-tech rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 3: G-tech cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 4: A G-tech menu with a scroll bar. . . . . . . . . . . . . . . . . . . . . 12

Figure 5: Configuration Mode — Main Screen . . . . . . . . . . . . . . . . . 14

Figure 6: Drag Strip Mode — Main Screen . . . . . . . . . . . . . . . . . . . . 14

Figure 7: Switching between Drag Strip & Configuration Modes . . 15

Figure 8: G-tech accelerometer calibration request . . . . . . . . . . . . . 35

Figure 9: Mounting bracket parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 10: Drag Strip Mode — G-Window screen . . . . . . . . . . . . . 46

Figure 11: G-Window tachometer. . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 12: Acceleration Bars & Primary Acceleration Indicator. . . . 48

Figure 13: Primary Acceleration Direction Indicator. . . . . . . . . . . . . 48

Figure 14: Staging Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 15: G-tech is staged and ready 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-tech milestones screen . . . . . . . . . . . . . . . . . . . . . . . . . .56

Figure 21: Run Save menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Figure 22: Confirmation before discarding run. . . . . . . . . . . . . . . . . .57

Figure 23: G-tech Run Viewing menu . . . . . . . . . . . . . . . . . . . . . . . . .58

Figure 24: G-tech Run Save menu . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Figure 25: G-tech display while run is being saved. . . . . . . . . . . . . . .58

Figure 26: G-tech 30 file limit warning. . . . . . . . . . . . . . . . . . . . . . . . .59

Figure 27: Choose a file to delete . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

Figure 28: Low on Memory Warning . . . . . . . . . . . . . . . . . . . . . . . . .63

Figure 29: Deleting runs to free memory . . . . . . . . . . . . . . . . . . . . . .64

Figure 30: Run Viewing Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Figure 31: G-tech Run Viewing Menu Capabilities . . . . . . . . . . . . . . .71

Figure 32: Horsepower / Torque summary . . . . . . . . . . . . . . . . . . . .73

Figure 33: Graph of Horsepower & Torque vs RPMs . . . . . . . . . . . . 73

Figure 34: Graph of horsepower vs time . . . . . . . . . . . . . . . . . . . . . .75

Figure 35: Graph of RPMs vs Time . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Figure 36: RPMs vs Time — launch . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Figure 37: RPMs vs Time — milestones . . . . . . . . . . . . . . . . . . . . . . .77

List Of Figures

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Figure 38: RPMs vs time — shifts and gears . . . . . . . . . . . . . . . . . . . 78

Figure 39: Graph 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 Mode Menu Summary. . . . . . . . . . . . . . . . . . 139

Figure 45: Performing an Acceleration Run. . . . . . . . . . . . . . . . . . . 140

Figure 46: Permanent Mounting Stem . . . . . . . . . . . . . . . . . . . . . . . 151

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Welcome

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 automatically request calibration. If you are unsure contact tech support.

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Welcome

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G-TECH / Pro Competition

Performance Meter

As you become more familiar with the G-tech’s powerful capabilities, you will learn how to create very valuable tuning records and increase the consistency of your measurements.

Thank you for purchasing your G-TECH / Pro Competition Performance Meter.

I am very pleased and proud to present this product to you and welcome you to our G-tech users family.

As you read along and especially as you start having fun with your G-tech you will realize something. You will see that this is a precision instrument with a high level of sophistication usually found in products from large industrial conglomerates.

But in the case of the G-tech, the development comes from enthusiasts, guys who are not driven by the bottom line, guys who – just like you – have 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 1/4 mile measurements after only a brief setup procedure.

For us, the G-tech has been a labor of love. It has all of the features you’ll ever want and there is truly nothing else like it in the world. Our motto has always been to bring the latest technology and innovation into the hands of our customers and maybe contribute, in a small way, to brightening their day.

So, without further ado, go out there and have some fun.

Please drive safely.

Jovo Majstorovic President, Tesla Electronics Inc.

Welcome

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Warning: Always obey all local and federal laws when using this device. This device is not intended for street or highway use. Use only in designated areas, closed courses and racetracks.

Tesla Electronics, Inc. shall not be held liable for technical or editorial errors or omissions made herein; nor for incidental or consequential damages resulting from the furnishing, performance or use of this material.

Warning: Adverse weather conditions can severely impair a vehicle’s controllability, especially at high speed. When using this device, drive cautiously and within the limits of your vehicle under the conditions.

Warning: Don’t take your eyes off the road. The G-tech will record your results for viewing and playback after the run. This device is designed as a test and tuning tool to measure performance and safety characteristics of a given vehicle. Use it for that purpose only.

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Tesla Electronics, Inc. shall not be held liable in any way for any incidental or consequential damages to the vehicle, driver, passengers, and/or other involved parties or property occurring while using the G-tech.

TESLA Electronics Inc. reserves the right to make changes to this manual and other product specifications at any time without any further notice.

The content of this manual is for informational use only and is not intended as a commitment of any kind.

Please drive safely.

Basics

This section will give you a basic overview of the Gtech.

Every new user should read this section!!!

Basics

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G-tech Front Side

We want you to be up and running in no time, so we have created a “Quick Setup Procedure” to streamline the process.

Photosensor

LEDs

OK Button

Menu Button

Please follow the steps described in this section to familiarize yourself with the product, and to set it up.

Note:

Competition product simply as the “G-tech”.

All input to the G-tech is done through the buttons on the right-hand side.

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In this manual, we will refer to the G-TECH / Pro

Figure 1: G-tech front

• Photosensor – measures ambient light

• Light Emitting Diodes (LEDs) – red lights that turn on

under certain conditions

• OK button ( ) – used to confirm entry of data and

make menu selections

• MENU button ( ) – brings up multi-line menus

• Navigation buttons ( , , and ) – used for

moving cursor around in menus, graphs, etc.

Navigation Buttons

G-tech Back Side

Cables

The back of the G-tech has 2 connectors as shown in Figure 2:

DC Power Jack

Serial Communications Port

Figure 2: G-tech rear

• DC Power Jack – plug in either of the supplied DC

power cables into this connector

• Serial Communications Port – plug in the supplied

serial cable into this port to enable communications between the G-tech and a computer

The G-tech ships with 3 separate cables:

Basics

Figure 3: G-tech cables

• Serial Cable – used to connect the G-tech to a com-

puter for data transfer

• AC Power Adapter – this cable supplies power from

any 120V AC wall socket

• 12V cigarette lighter DC Power Cable – supplies

power from vehicle’s accessory (cigarette lighter) socket

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The 12V cigarette lighter DC Power Cable has a fuse in the end that plugs into your vehicle. If the cable does not seem to provide power when the vehicle is running, the fuse may be blown and need replacing.

To replace the fuse, unscrew the tip and replace 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 of the G-tech’s menus is shown in Figure 4:

Scroll bar

Figure 4: A G-tech menu with a scroll bar

Some menus have a scroll bar on the right hand side. This means that there are more items in the menu than the Gtech can display at once.

Use the / arrow keys to move through all the choices in the menu.

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The shaded portion of the scroll bar will move as you scroll through the choices.

Operating Modes

The G-tech has two basic modes of operation:

• Configuration Mode

• Drag Strip Mode

You use Configuration 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 trap speed

• Horsepower and torque measurements

• Braking distance measurements

• Cornering / lateral G measurements

The G-tech remembers which mode it was last in when you power off. When you power it on again, it starts up again in the same mode it was in before.

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Basics

If you power on your G-tech and the display looks 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 6: Drag Strip Mode — Main Screen

You can easily switch between the two modes, as shown in Figure 7.

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Drag Strip Mode Main Screen

Figure 7: Switching between Drag Strip & Configuration Modes

Basics

Configuration Mode Main Screen

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Quick Setup

This section will get you up and running as quickly as possible.

This section must be completed to obtain accurate results!!!

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Quick Setup

Quick Setup and Use

Setting Time and Date

Here you will customize the G-tech for your vehicle and your personal preferences.

The G-tech saves your configuration choices internally, even when it is powered off.

The table below summarizes the Quick Setup Procedure, and how much time each step will take to perform.

Setup Item Estimated Completion Time

Set time and date 1 minute

Set vehicle redline 1 minute

Set shiftlight setpoint 1 minute

Set vehicle weight 1 minute

Calibrate RPMs 2 minutes

Calibrate accelerometers 3 minutes

Mount G-tech 2 minutes

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 makes it easy to review your measurements and make sense of them.

Start in Configuration Mode.

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Select “Gtech Setup” and press .

Set the date.

and move between fields, and

change values. Press when done.

Note:

automatically and cannot be set.

Select “Set Date and Time” and press .

Set the time.

Use to move and adjust fields. Press when done.

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Day of week (e.g. Tuesday) is calculated

Quick Setup

Setting Vehicle Redline

You should set the vehicle redline value in the G-tech before using it.

This will allow the G-tech to display the graphical tachometer (p. 47) so that it matches your vehicle’s own tachometer.

This step is essential for accurate RPM calibration (p. 25).

Select “Vehicle Data” and press .

Select “Engine Redline” and press .

Note:

Start in Configuration Mode.

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many places throughout this document. This is because the G-tech can be used in multiple vehicles and allows you to name each one (p. 122). On a new G-tech, you will see the text “noname1” here.

You will see the text “MUSTANG 66” in

Enter vehicle’s engine redline.

Press when done or press to abort and discard the changes.

Setting the Shiftlight Setpoint

The shiftlights illuminate to indicate when you should upshift into the next gear.

If you have a manual transmission vehicle, or a vehicle whose gears can be shifted under driver control, this feature may be of interest to you.

If you do not have control over when your vehicle shifts gears, you 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 the same value as their vehicle’s redline value; other people set it to a lower value, so that the lights turn on before they reach redline in a run. It is your preference and can be changed at any time.

The shiftlight setpoint is also indicated on the graphical tachometer on the G-Window (page 47).

Quick Setup

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Note: This step must be performed in the vehicle, it cannot be performed when powered by the AC power adapter.

Start your vehicle, and plug the G-tech into your

vehicle’s accessory power outlet.

Put the G-tech in Configuration Mode.

Select “Vehicle Data” and press .

Select “Shiftlights” and press .

Select “Set Shiftpoint” and press .

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Enter RPM shiftpoint.

Press when done or press to abort and discard the changes.

Setting Vehicle Weight

The G-tech uses your vehicle’s weight in its 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 accurate vehicle

weight.

Start in Configuration Mode.

Quick Setup

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Select “Vehicle Data” and press .

Select “Vehicle Weight” and press .

Enter your gross vehicle weight.

Press when done or press to abort and discard the changes.

Note: Be sure to include weight of fuel, driver, equipment, etc. (page 160)

24 G-TECH / Pro Competition User Guide, Release 3.1

Calibrating RPMs

Some of the most exciting features in the G-tech rely on good RPM measurements.

Since every vehicle has a unique electronic “RPM signature,” the G-tech must learn the RPM signature at two different points for your particular vehicle before it can measure and record RPMs.

Start in Configuration Mode.

Quick Setup

Follow the steps below to calibrate the G-tech for your vehicle’s RPM signature.

Note:

to this step!

Note: For detailed information on calibrating RPMs, please refer to “RPM Calibration Tips” on page 145.

25 G-TECH / Pro Competition User Guide, Release 3.1 25

You must set the redline in the G-tech (page 20) prior

Select “Calibration” and press .

Select “RPMs” and press .

If the redline value is set properly, press to continue. If not, press to cancel, and then set the

redline in the G-tech (page 20).

High RPM calibration: Match vehicle RPMs to G-

tech. Then press when vehicle RPMs are steady at the requested value.

Note: The RPM value shown here may be different than the value your G-tech displays. During this process, use the value on your G-tech!

26 G-TECH / Pro Competition User Guide, Release 3.1

Low RPM 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 different than the value your G-tech displays. During this process, use the value on your G-tech!

You will see this screen briefly when the procedure

is complete, and then you will be returned to the previous menu in Step 4.

For detailed information on calibrating RPMs, please refer to “RPM Calibration Tips” on page 145.

Quick Setup

27 G-TECH / Pro Competition User Guide, Release 3.1 27

Calibrating Accelerometers

The G-tech contains high-precision measuring instruments called accelerometers.

Note:

erometers must very important!

Do not perform the calibration with the engine running. A running engine causes vibrations in the vehicle that can affect your calibration results.

In order to obtain accurate measurements, the accel-

be calibrated. Do not skip this procedure, as it is

Note:

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 attention to the instructions on the display.

Note:

ent temperatures that are as far apart as possible (page 35). If you attempt to perform a calibration and the G-tech determines that it has already been calibrated at (or near) the current temperature, it will “reject” your calibration attempt and notify you with a message on the display. If you get this message, let the Gtech warm up or cool down so that its temperature is significantly different than the current temperature, and try again.

If you do not have the G-tech oriented properly during

The G-tech functions best when calibrated at 2 differ-

The accelerometer calibration procedure does not need to be done inside the vehicle. You may find the procedure easier if you do it indoors using the AC adapter to power your G-tech.

The accelerometer calibration procedure will generally go faster if you can rest the G-tech on a flat, level surface such as a table or a console. Generally, the faster the calibration goes, the better the results.

Please follow the steps below to calibrate the G-tech’s accelerometers.

28 G-TECH / Pro Competition User Guide, Release 3.1

Start in Configuration Mode.

Select “Calibration” and press .

Select “Accelerometers” and press .

Select “Calibrate Axes” and press .

You will see the following screen:

Quick Setup

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+ 150 hidden pages

G-Tech Pro Competition User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table Of Contents

List Of Figures

Welcome

Basics

G-tech Front Side

G-tech Back Side

Cables

Menus and Scroll Bars

Operating Modes

Quick Setup

Quick Setup and Use

Setting Time and Date

Setting Vehicle Redline

Setting the Shiftlight Setpoint

Setting Vehicle Weight

Calibrating RPMs

Calibrating Accelerometers