Beltronics GX2 manual

Vehicle PERFORMANCE COMPUTER Vehicle PERFORMANCE COMPUTER Vehicle PERFORMANCE COMPUTER OWNER’S MANUAL V ector SERIES with V acuum Fluorescent Display[...]

The manufacturer is not responsible for any accidents, property damage, or injuries that occur while using the Performance Computer . Like your car’ s speedometer , this device is no more than a measuring instrument, a tool that can be used to measure vehicle performance. Obey all traffic laws on the street. Drive responsibly , and use common sen[...]

Please read the entire manual to learn details of the many capabilities of your new Performance Computer . This page provides only a basic overview of the instal- lation, features, and capabilities. INST ALLATION 1) Plug into lighter socket Plug the cord into the Performance Computer , and into your car’ s lighter socket. The Performance Computer[...]

7 6 Installation Mounting Location Mount the unit on the windshield, centered between driver and passenger . The unit must be straight across the car . Do not angle the unit toward the driver! Angle adjustment Pivot the unit on its windshield bracket until it is approximately level. It is important that the unit stays in position during use. If the[...]

G-Meter Operation The basics of G-Forces When you’re not performing a Timed Run, the Perfor - mance Computer is in the G-Meter Mode, where it can display the acceleration, braking, and cornering forces of your car . These forces are measured in “G’ s,” and they are the best way to measure your car’ s performance. Y ou’ve felt these forc[...]

G-METER OPTION 2: FRICTION CIRCLE Press and release the G-METER button as necessary to select “G-METER OPTION 2.” The small numbers on this display show the braking and acceleration force on the top line, and the corner - ing force on the bottom line. The large number shows the combined G-Forces, and the arrow shows the approximate direction of[...]

G-METER OPTION 4: FORWARD + 0 to 60 Press and release the G-METER button as necessary to select “G-METER OPTION 4.” The top line shows acceleration and braking forces, the same as G-METER Option 1: Bar Graphs. The second line shows your “T op 10” best 0 to 60mph times to date. (Of course, you must perform timed runs before times will appear[...]

G-METER OPTION 7: RACEMONITOR .10 Press and release the G-METER button as necessary to select “G-METER OPTION 7.” This display shows only the combined vector forces (see the explanation in G-METER option 2: Friction Circle). In addition to a large numerical readout of the com- bined G-Force and an arrow showing the approximate direction of the [...]

Run #1 Complete More Run Info ! ! Timed Runs Y our Performance Computer’ s intuitive “one-button” operation makes timing your car’ s performance easy . Y ou start the process by pressing the TIMED RUN but- ton. The unit performs an internal calibration, then the timer starts automatically when you accelerate, and stops automatically at the [...]

4: REVIEWING DET AILED RUN RESUL TS The Performance Computer automatically records all run data during a timed run. T o review the data after the run, press the UP and DOWN buttons. The data for your 10 most recent runs is automatically kept in memory . You can review the data immediately after your run, or anytime later . The memor y is main- tain[...]

21 20 Measuring Horsepower For the performance computer to accurately measure your car’ s horsepower , you must enter information about your vehicle’ s weight, drivetrain loss, and aero- dynamic qualities. Note: This setup is optional, and is NOT necessar y for accurate T imed Runs or G-Meter function. In a timed run, the rated horsepower of yo[...]

How to determine the CDA of your car: There are three possible ways to determine the CDA of your car: • Find specifications for your car’ s CDA • Estimate your car’ s CDA • Calculate your car’ s CDA using a coastdown test Details on each method follow. 1 Manufacturer’ s specifications or other research Very rarely do manufacturers lis[...]

Setup Mode The Setup mode lets you enter your car’ s weight and make other selections to optimize horsepower mea- surement, and also customize the operation of other features. G-Meter and Timed Run accuracy For most cars, it is not necessary to change any Setup items for accurate G-Meter and Timed Run functions. Horsepower Accuracy For accurate h[...]

27 26 pensions can change this setting for more accurate cor - nering G-Force measurements. For cars with very soft suspension, change to 6.0. For cars with soft suspension, change to 4.5. Default is 3.0 For cars with very stiff suspension, change to 2.5 For race cars, change to 1.5 4 CLEAR SA VED RUNS Most users won’t need to use this command. T[...]

28 DET AILS ON SETUP MODE ITEMS (cont’d) 15 END TIMED RUN Most users won’t need to adjust this setting. Y ou can choose to end timed runs automatically , or time each run for 30 seconds. Default is Automatic. END RUN AUTO When set for Automatic, the Performance Computer will automatically end timed runs when any of the fol- lowing occur: Y ou s[...]

31 30 DET AILS ON SETUP MODE ITEMS (cont’d) 19 TRIGGER Most users won’t need to adjust this setting. This sets the G-Force criteria to start timed runs. The default is .10 G, meaning that the timer starts count- ing when it detects acceleration of .10G. Lower set- tings may cause false triggering due to vibration of the car . If your car has si[...]

33 32 T roubleshooting See additional troubleshooting tips, F AQ’s, and other information on our website, or email us at: belsupport@beltronics.com G-METER ACCURACY When driving on sloped or crowned roads, it is normal for the G-Meter to read slight g-forces, even when the car is not accelerating or is stationary . The G-Meter measures G-Forces i[...]

Service Procedure If your Performance Computer ever needs service, please follow these simple steps: 1 Review the appropriate section of this manual. It may have a solution to your problem. 2 If possible, check out our website for answers to common questions, or email us at: belsupport@beltronics.com 3 T o arrange ser vice, call us toll-free: U.S. [...]

5442 W est Chester Road, W est Chester , Ohio 45069, USA CUST OMER SERVICE: 800-341-2288 (USA) • 800-268-3994 (CAN) Printed in USA www .beltronics.com Par t #121GX2-01[...]