Posted in Performance Meters and Lap Timers

PerformanceBox is a GPS based performance meter that allows you to measure G-forces, speed, lap & split times, 0-60, 0-100, braking distance and many more.


The new Predictive Lap Timing function (live comparison to best lap) gives you instant feedback on your driving and helps you to find valuable improvements in your times.

All parameters are logged to an SD memory card ten times per second for later review and comparison.

PerformanceBox contains an integrated antenna, is compact in size and very easy to install. 

online-storeAvailable in three different packages.


  • Performance meter, lap timer, data logger and power calculator in one box
  • Accurate GPS logging at 10Hz
  • Backlit graphic LCD display
  • Choose between 6 different screens
  • Logs directly to SD card
  • Rugged plastic enclosure
  • Predictive Lap Timing
  • Inbuilt GPS antenna
  • Easy to use


Acceleration: 0-60, 0-100 / displays: Time, g-force
Braking: 60-0, 100-0 / displays: Time, distance, g-force
Distance: 60’, ¼mi, ½mi, 1mi / displays: Time, trap speed
Live G-Meter: Accel, Decel, cornering g-forces, with max G

Lap Time: Displays current lap, last lap, best lap
Split Times: Displays split time or speed at a split point
Virtual Start/Finish/Split Lines: Using GPS, there is no need for an external beacon or transmitter. Split lines can be easily saved and transferred.

Wheel HP Calculation: Enter your vehicle’s weight and run an acceleration to estimate wheel horsepower.
Flywheel HP Calculation: Perform a coast-down test to measure drag, and the PerformanceBox will calculate HP at the flywheel.

Speed: PerformanceBox also works as a highly accurate digital speedometer with compass, a handy feature for street driving.
Accurate GPS speed can be used to calibrate a vehicle's speed readout.

Predictive mode enables you to graphically view your predicted lap time.
Predictive lap timing works by saving your position around a circuit, every second. If the current lap is the fastest so far, then this positional data is saved as a reference.


This screen provides the ability to configure the input channels of a connected Micro Input Module and view the data on each of the input module channels.
A Micro Input Module allows 4 analogue and 1 digital (RPM) inputs.

Predictive Lap Timing

PB-PredictiveInstant driver feedback

Predictive Lap Timing gives you an invaluable insight into how your current lap time compares with your fastest lap time.

To achieve our unrivalled accuracy, we compare two different laps using GPS position rather than distance, 10 times a second. This means our lap time stays accurate, even if you take a different line each lap.

Read more about how it works.

Circuit Tools Analysis Software

Circuit Tools is a Windows based data analysis software that comes with Video VBOX, VBOX Sport, DriftBox and PerformanceBox.

CT GPS Only-lb
The software is designed by racing drivers, for racing drivers, with none of the complexity normally associated with analysis software.

DB-sd-cardEasy to use

To analyse your track data, simply insert the SD card with your recorded data into your PC and select a file.

Huge track database

The software automatically detects the country, circuit and track configuration from a database of almost 500 circuits and uses the start/finish line information to separate the laps contained in your recorded file.

The fastest lap from your latest session is automatically chosen and displayed on the graph window. You can compare runs from this session, or from previous ones simply by clicking on the relevant lap time shown in the session window.

Lap time difference channel

Time difference or 'Delta-T' is a very useful channel that shows the lap time difference between two different laps.


More about Circuit Tools Driver Analysis Software.

Performance Tools

This Windows software allows you to analyse your vehicle's performance in a range of acceleration and braking tests.

To use the data logging, simply insert the 64MB SD card (which gives up to 53 hours of logging) and drive. Once you have finished the test, either plug the PerformanceBox into a PC via the USB cable provided, or remove the SD card and place it in a suitable reader.
Performance Box Tools Screenshots
The data is then read into the Performance Tools software, which is installed from the CD supplied.

Add-On Products

GPS Antenna
Magentic patch antenna with 3M-MCX connector, requires a ground plane.

In-car power supply
For connection to in-car 12v auxillary socket. 2m length.  

Windscreen mount
Windscreen mounting cradle including suction cups.

Micro Input Module
The module allows you to record one frequency (RPM) and four analogue signals.

Battery Pack
The battery pack gives approximately eight hours of power from a full charge.



GPS Specifications


  • Accuracy: 0.1 Km/h (averaged over 4 samples)
  • Units: Km/h or Mph
  • Update rate: 10 Hz
  • Minimum velocity: 0.06 Mph
  • Maximum velocity: 1000 Mph
  • Resolution: 0.01 Km/h
  • Latency: <160 ms


  • Accuracy: 0.05 % (<50cm per Km)
  • Units: Metres / Feet
  • Resolution: 1 cm

Position Accuracy

  • 2D Position: ±3m 95% CEP *
  • Height: 10 Metres 95% CEP *


  • Accuracy: 1 %
  • Maximum: 4 G
  • Resolution: 0.01 G


  • Resolution: 0.01° (averaged over 4 samples)
  • Accuracy: 0.1°

Accel/Brake Test

  • Resolution: 0.01 s
  • Accuracy: 0.1 s **

Lap Timing

  • Resolution: 0.01 s
  • Accuracy: 0.01 s **

*95% CEP (Circle of Error Probable) means 95% of the time the position readings will fall within a circle of the stated radius
**Not using DGPS and crossing the start/finish line at 100km/h.

Storage and Memory

  • Storage option: SD and SDHC card, must be FAT/FAT32 file system
  • Recording time: Depending on card capacity. Uses approx. 1.1MB/hr

Environmental and Physical

  • Input Voltage: 6 – 28 V DC
  • Size: 113mm x 63mm x 93mm
  • Power: Typically 100 mA, +12v vehicle supply
  • Weight: 225g
  • Operating temperature: -20°C to +50°C
  • Storage temperature: -30°C to +80°C

Windows Software

  • Performance Tools: Performance, Acceleration, Brake Testing
  • Circuit Tools: Data analysis software


  • Hardware: One Year Support Contract
  • Software: Lifetime Support Contract: Valid for a minimum of 5 years from the date of purchase and limited to the original purchaser. Contract includes: telephone/ email technical support provided by local Distributor and firmware/ software upgrades (where applicable).

Download or print Datasheet.