TEST REPORT
Contents
1. e PerformanceBox Serial number 3010344 Firmware version V2 00 Build 29 e G TECH Pro RR Serial number 02 1 1308667489 Firmware version 4 0 0 e Racelogic VBOX III 100Hz GPS Datalogger reference measurement Serial number 030199 Firmware version 2 09 build 4 The measurements were performed with all three units operational simultaneously The host vehicle was 2006 Saab 9 3 1 9TiD and the test was performed at Finmere Mill Aerodrome Oxfordshire UK Issue 1 Page 3 of 19 K RACELOGIC 3 Description of Test Items PerformanceBox The PerformanceBox is a self contained GPS data logger and performance meter A 10Hz fully calibrated GPS engine is used to provide accuracy and precision and the data can be stored on a removable SD flash card Real time results are displayed on the back lit LCD display and a USB connection allows data to be downloaded to a laptop for further in depth analysis Features Non contact 10Hz speed and distance measurement using GPS Internal GPS antenna Back lit LCD screen for viewing live data and results Lateral and longitudinal g force measurement SD card slot for use with SD cards USB interface for reading SD card and upgrading firmware Full data logging analysis software Performance Tools Picture of PerformanceBox Issue 1 Page 4 of 19 K RACELOGIC G TECH Pro RR The G Tech Pro RR is a Self contained accelerometer based performance meter Limited information on the arch2. 0 258 System re set suspect power interruption to PerformanceBox immediately at end of run possibly due to 2 way 12VDC adaptor used Run data not saved N C Information non conclusive due to system re set N A Information not available System information incomplete when viewing in VBOX Tools software Average values given based upon available data from 4 runs Average error given as function of average PerformanceBox G TECH Pro RR data compared to VBOX III reference data Issue 1 Page 16 of 19 K RACELOGIC 8 Conclusions An at a glance comparison of the performance of the 3 units can be made using the average figures given in the previous tables 60ft times s reference No rollout 3 336 3 544 1 ft Rollout Ya mile times S teres C TECH Pro RR No rollout 18 915 1 ft Rollout 17 843 17 78 17 857 Ya mile velocity mph reference No rollout 11 354 77 32 71 48 1 ft Rollout 80 618 80 50 80 36 lt can be seen that generally the PerformanceBox measurements are more consistent with the VBOX III reference measurements which highlights a potential discrepancy between the PerformanceBox and the G TECH Pro RR measurement systems measurements via GPS for VBOX Ill and PerformanceBox measurements via Accelerometers for the G TECH Pro RR Additionally it can be seen that using a 1 ft rollout appears to significantly increase the accuracy of the G Tech Pro RR whe
3. K RACELOGIC TEST REPORT Comparison of Racelogic PerformanceBox Performance Meter Tesla Electronics Inc G TECH Pro RR Performance Meter Date of Test 30 April 2007 Date of Report 02 May 2007 Test report by N Tanner Issue 1 Page 1 of 19 K RACELOGIC TABLE OF CONTENTS Title Page Table of Contents 1 Purpose of test 3 2 Test Equipment 3 3 Description of Test Items 4 4 Installation 6 5 Mode Set up and Data Presentation 8 6 Handling and Usage Observations 11 7 Results 15 8 Conclusions 17 Issue 1 Page 2 of 19 K RACELOGIC 1 Purpose of test The purpose of this test was to provide a comparison of the 60ft and 1 4 mile timings and 1 4 mile velocity features of the Racelogic PerformanceBox Performance Meter hereafter referred to as PerformanceBox and the Tesla Electronics G TECH Pro RR Performance Meter hereafter referred to as G Tech Pro RR to the following requirements e The test was to be performed over mile extracting the 60ft times the 1 4 mile times and the end velocity at 1 4 mile concurrently 5 runs to be performed e The test was repeated with the addition of a 1ft rollout staging 5 runs to be performed All other functionality of these units is outside the scope of this particular report Please note all observations stated are unbiased and are given in the opinion of the author Test Equipment The test was to be performed using the following
4. T clock set to 0 000s This process ensures that the vehicle is completely stationary After about one second the upper left LED started blinking and the staging message changed to Launch when ready Indicating that the unit is now ready to make measurements The 1 4 mile run was then performed and the vehicle brought to a halt Note in order to register the run on the G Tech Pro RR the driver is required to accelerate reasonably briskly to activate the E T clock Page 9 of 19 5 4 Vi Vil viii Issue 1 RACELOGIC Post mile run and results display Post 1 4 mile run the unit displayed a number of parameters for about 5 seconds and then automatically saved the run to its internal memory The data remained displayed To perform subsequent runs the vehicle was returned to the start position The unit automatically re set to Drag strip mode and steps xii to xiv in section 5 3 were repeated For retrieval and display of the results post test Stored Runs was selected from the from the Drag Strip menu From the Stored Runs menu Select a run was selected From the subsequent list of stored runs the required run was selected Note runs are stored in date ET clock time speed format i e 04 30 07 17 774 81 61 From the menu for the selected run View this run was selected to load the Run viewing menu The results for the selected run were then chose
5. The mile run was performed and the vehicle brought to a halt 5 2 Post mile run and results display i Post mile run the unit displayed the times taken to reach the set parameters of 60 feet and 1320 feet plus the velocities at these parameters and the total number of feet travelled including the braking period The run data was automatically saved to the on board SD card li To perform subsequent runs the vehicle was returned to the start position The unit did not re set the cumulative value of feet travelled despite this being expected operation This distance was re set to 0 feet by pressing and holding the RESET button for approximately 5 seconds After this re set the unit was ready to make measurements again lil For retrieval and display of the results post test the Performance Tools software can be used Additionally the run data can be saved and viewed as ixt files The use of the Performance Tools software and the txt files function is outside the scope of this investigation The run data cannot be recalled directly to the PerformanceBox display Issue 1 Page 8 of 19 5 3 Vi Vil viii xi xii xiii XIV Issue 1 K RACELOGIC G TECH Pro RR Set up The sample was powered up via the 12VDC Adaptor the bottom right LED blinked once and initial power up screen showed a digital tachometer indicating that the unit was last powered down in the required Drag Strip Mode Firstly the
6. _ a mile ETI mph ery ES ES 73 19 19 Eva Eva 734 734 3 49 18 59 77 14 18 6 77 1 0 01 0 01 0 04 G Tech Pro RR No Rollout Racelogic VBOX III G TECH Pro RR Error reference Run 6Oft Y mile Vat 6Oft Y mile Vat 6Oft Y mile V at 1 4 Time time mile Time time mile 7 time mile mph S S mph s s mph S S e a eor rest a9 nn wn oro wn w 3 03 18 05 81 91 3 2 1 18 270 81 97 0 241 0 22 0 06 Average 3 336 18 660 77 354 3 544 18 915 77 48 0 204 0 255 0 126 N R No Result system reported these parameters as zero values after this run Average values given based upon available data from 4 runs Average error given as function of average PerformanceBox G TECH Pro RR data compared to VBOX III reference data Issue 1 Page 15 of 19 K RACELOGIC PerformanceBox With 1ft Rollout Racelogic VBOX III reference Run V at 14 Vata 60ft V at 14 Time time mile Time time mile Time time mile S S mph S S mph S S mph 80 618 2 75 17 78 80 50 0 046 PerformanceBox Error G Tech Pro RR with 1 ft Rollout Racelogic VBOX III G TECH Pro RR reference Time time mile Time time mile Time time mile S S mph S S mph S S mph 81 6 4 2 81 17 83 80 95 2 869 17 969 79 93 0 059 0 139 1 02 Average 2 796 17 843 80 618 2 843 17 857 80 36 0 047 0 014
7. ell g Issue 1 Page 7 of 19 K RACELOGIC 5 Mode Set up and Data Presentation To perform the required test as described in section 1 each unit required setting into the appropriate mode For the PerformanceBox this was Performance Mode and for the G TECH Pro RR this was Drag Strip Mode 5 1 PerformanceBox set up i The sample was powered up via the 12VDC Adaptor the PerformanceBox logo was displayed along with the unit s serial number and an audible beep could be heard to indicate power on i To set PERFORMANCE MODE the MODE button was pressed until PERFORMANCE MODE is displayed The unit then entered PERFORMANCE MODE automatically iii Using the ff and arrow buttons the DISTANCE screen was selected iv The required distances of 60 feet and 1320 feet 1 4 mile were displayed but these values can be changed as required by pressing the MENU button and entering the DISTANCE TESTS MENU v Next the rollout setting was checked This was accessed by pressing MENU and entering the PERFORMANCE MENU then using the ff and arrow buttons to highlight 1 FOOT ROLLOUT then using the OK button to select as required Note For the first 5 runs the rollout was not required for the second set of 5 runs the rollout was required vi With the 1 FOOT ROLLOUT selected as required EXIT was selected to return to the DISTANCE screen The PerformanceBox was then ready to make the required measurements vil
8. ft 1 8 mile and 1 4 mile The Flashing LED s to indicate that the selected distance markers have been reached would be better employed if they latched on for say 1s instead of the very brief flash that they currently give It is easy to miss this brief flash On one occasion the G TECH Pro did not record a full set of data at the end of the run possibly due to a poor gear change mid run which may have made the unit think that the vehicle was coasting The use of the G Tech Pro RR is quite limited in comparison to the PerformanceBox This limited use is reflected in the price The potential to have to re calibrate the accelerometers could possibly be a complex process with potential for user error although the process is described well in the user manual Note this comment is based purely on opinion from the information give in the user manual No actual accelerometer calibration was performed The run data is saved to internal memory and can either be reviewed on the display or uploaded to a PC for analysis using the G TECH PASS software Page 13 of 19 K RACELOGIC 6 7 Documentation User guides Both user guides are well detailed and appear to contain enough information to enable a novice user to be able to make the required measurements with in both cases examples of measurements including screenshots of the units themselves The following observations were noted The PerformanceBox user manual is 44 pages and is supp
9. he course of the test whereby a button push was attempted but had to be re attempted to achieve the desired state Post run the PerformanceBox was ready to start subsequent runs without any intervention from the user However the distance in feet displayed on the PerformanceBox from the previous run did not reset for the subsequent runs This would not be an issue on a proper mile drag strip with a lengthy stopping area but was a concern when using the Finmere Mill Aerodrome at higher speeds The PerformanceBox could benefit from an audible alarm which sounds when the desired distance has been reached this would ensure that the driver is able to keep his or her eyes on the track Again this would be most suited to a non professional test track for the same reasons as given in point Il above The rollout for the PerformanceBox is not definable by the user but is set at 1 foot only On two occasions the PerformanceBox either lost power through the DC DC adapter or lost satellite communication leading to aborted runs The run data is saved to SD card and can be viewed post test either by using the Performance Tools software or as txt files G Tech Pro RR Vi Vil Issue 1 The M and OK buttons on the G Tech Pro RR allow for a definite action but the f U lt and button feels a little loose in the housing The G TECH Pro RR is quite limited in the distance parameters which can be selected with a choice of just 60
10. itecture theory of operation of these accelerometers is provided in the user manual Real time results are displayed on the back lit LCD display and a serial connection allows data to be uploaded to a PC for further in depth analysis Features e Triaxial accelerometers covering X Y and Z orientations e Back lit LCD screen for viewing live data and results e Lateral and longitudinal g force measurement e Serial Interface for uploading run data to PC and upgrading firmware e Performance analysis software G Tech PASS Picture of G Tech Pro RR showing screen shot of G Tech PASS perfromance analysis software Note Picture taken from G Tech Pro web site www gtechpro com PAS S PCR ORMANCE ANALTES Grota GOriware T ereina f m a sewadi be r jrm ETIE zaya er z i fl s il GETH pm j void eyi P Oni CE arom r kemm pnm low i Masimum HP An Ver VE s e m a naia haaa LELEL ELLET Issue 1 Page 5 of 19 K RACELOGIC 4 Installation Both units were mounted inside the car at the bottom centre of the windscreen The VBox III and its power supply were placed in the passenger footwell with an external antenna mounted on the top of the car The PerformanceBox was installed to use its internal GPS antenna Placement of PerformanceBox and G TECH Pro RR AP ge oa y p z ACAMEE Issue 1 Page 6 of 19 K RACELOGIC Placement of VBox Ill in passenger footw
11. lied on CD ROM only however a quick start guide is supplied as standard The user manual is also available to download via the PerformanceBox web site see below The user of the PerformanceBox manual is guided via a comprehensive table of contents but the manual does not contain an index The G TECH Pro RR user manual is 148 pages despite the functionality of the unit being limited in comparison to the PerformanceBox The manual is of glued construction which requires the user to keep a hand on this to prevent it from closing under its own weight The manual does however contain a full index and a glossary of terminology 6 8 Cost The cost of the PerformanceBox is from 311 inc VAT 2 package options available The cost of the G Tech Pro RR is 299 approximately 155 at the time of writing As mentioned in section 6 6 it should be noted that the PerformanceBox has considerable increased functionality over the G Tech Pro RR however these additional features and functions are outside the scope of this report For further information on the full functionality of these two units please see their respective user guides and the following web sites www performancebox co uk www gtechpro com Issue 1 Page 14 of 19 K RACELOGIC 7 Results PeformanceBox No Rollout Racelogic VBOX III PerformanceBox Error reference 6Oft Y mile V at 1 4 60ft v4 mile V at 1 4 60ft v4 mile V at 1 4 a mi mile o w mile
12. n compared to this units measurements with no rollout selected This could possibly be due to the operation of the accelerometers which will not record data from a standing start unless a reasonable acceleration force is applied With reference to the applicable user manuals both units seem generally easy to use when making the measurements given in this report Based upon the respective units features and with reference to the tables above and on page 15 the better choice of unit to use for the more serious user may be the PerformanceBox due to the following reasons l Better measurement accuracies at 0 1km h compared to 0 4mph Il Measurements made were more consistent with the reference measurements III Significant additional functionality IV No potentially lengthy calibration procedure Set up is quick and easy Average values given based upon available data from 4 runs Issue 1 Page 17 of 19 RACELOGIC For the less serious user or for the user interested in recording comparative 1 4 mile times for tuning engineering purposes the better option may be the G Tech Pro RR for the following reasons Issue 1 Timing resolution is reported to 3 decimal places with a stated accuracy of 0 01s Absolute accuracy may not be an issue if the unit is to be used for comparative purposes Up to 30 sets of run data can be stored internally and reviewed on the display without the need for uploading
13. n from the displayed Run viewing menu All stored data can be uploaded to a PC and analysed using G Tech PASS software However this was not required for the purpose of this testing Page 10 of 19 RACELOGIC 6 Handling and Usage Observations 6 1 Physical and Environmental Conditions PerformanceBox Weight 225 grams Dimensions 113mm x 638mm x 93mm Operating Temp 20 C to 50 C Storage Temp 30 C to 80 C G TECH Pro RR Weight Not Given Dimensions Not Given 100mm x 54mm x 40mm approximately Operating Temp Not Given Storage Temp Not Given 6 2 Mounting System The PerformanceBox uses a mounting system consisting of two sliding parts to adjust the mounting angle connected with tightening bolts on either side to fix the angle in position The mounting system is attached to the vehicle windscreen using three suction cups The mounting system for the PerformanceBox is very simple to use and the PerformanceBox can be mounted in just seconds G TECH Pro RR mounting system consists of the following parts Suction Cup Mounting Bracket Large Vacuum Nut Small Tensioning Nut Mounting Clip The G TECH Pro RR mounting system appears a little complex at first and is a little awkward to set up but once assembled the unit is held very secure When mounted the PerformanceBox mounting system allows for some small movement of the unit whilst pressing the buttons The G TECH Pro RR mounting
14. run parameters were checked by pressing the M button to enter the configuration menu Configuration Mode was selected by using the f lt gt button and then pressing OK From the Configuration Mode menu the Run Parameters menu was selected using the method given in step iii In the Reaction Time menu no tree was selected as reaction time measurement was outside the scope of this investigation After selecting no tree exit was selected to return to the run parameters menu Next the Staging Rollout menu was selected and the rollout value set to O inches note for the second round of testing this value was set to 12 inches Next the Speed Mark menu was selected and the speed mark value set to 150mph to effectively turn the speed mark function off as advised in the user manual Note Speed mark is a function of reaction time and as such is outside the scope of this investigation Next the Distance Marks menu was selected and the 60ft and mile distances selected When all parameters above were selected the Run Parameters menu was exited back to the Configuration Mode menu From the Configuration Mode menu Drag Strip Mode was selected to set the unit into the required mode for test From the Simulated Tachometer screen the next step was to press OK which switches to the staging screen This screen shows the message staging with an RPM counter and Elapsed Time E
15. system appears to hold the unit in a more stable position Issue 1 Page 11 of 19 6 3 Accuracy K RACELOGIC The quoted accuracies for velocity time and distance for each unit are as follows PerformanceBox Velocity 0 1km h Time 0 1S Distance 0 05 G Tech Pro RR Velocity 0 4mph for 1 4 mile measurement 0 2mph for 0 60mph measurement Time 0 01s Distance Not declared or if declared could not be found 6 4 Display PerformanceBox 44mm x 25mm approximate measurements Green backlit LCD G Tech Pro RR display with adjustable brightness and contrast 53mm x 28mm approximate measurements Orange backlit LCD display with adjustable contrast only Both displays are clear and easy to read 6 5 Menu System Both units menu systems are easy to navigate around PerformanceBox menu is a little more complicated than the G TECH Pro RR menu but this is expected due to the extra functionality of the PerformanceBox 6 6 Ease of Use Both units seem quite easy to use with user friendly menu options and clear displays However the following operational observations were noted see next page Issue 1 Page 12 of 19 K RACELOGIC PerformanceBox Vi The PerformanceBox buttons are a soft rubber type and this combined with the small amount of movement seen when mounted to the windscreen as described in section 6 2 sometimes led to one or two false button pushes during t
16. to a PC If required the G TECH PASS software can be used to review and analyse data post test The limited functionality means that there is less chance of the user becoming confused with the operation of the unit Perhaps most importantly to the individual user the G Tech Pro RR is significantly cheaper than the PerformanceBox Page 18 of 19 K RACELOGIC End Of Document Issue 1 Page 19 of 19
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