What is the G2X?
The G2X is an evolution of our professional series GPS based data acquisitions system, utilized for years in various forms of motorsports. Thousands of on-track laps have allowed us to create an economical data logger that is both rugged and dependable, in a variety of environments.
 
Why use GPS data?

Reduced Cost
The G2X utilizes a small GPS antenna to obtain and create data that would typically require an assortment of vehicle mounted sensors and trackside mounted transmitters. The use of GPS signals, combined with the G2X software provides:

• Lap Time
• Segment Time
• Track Mapping
• Speed

In addition, lateral and accel g forces are provided from internally mounted accelerometers, RPM and other inputs are available from externally connected sensors.

Easy Installation

Mount the data logger and dash, connect power and place the antenna on the top of the vehicle. Installation is complete.  This simple design allows for quick install / removal in multiple vehicles, while the use of GPS data for lap / segment timing and track mapping allow for accurate comparison between multiple vehicles.

Real Data

The G2X is a data system that installs like a performance meter, yet is a true data acquisition system, saving data to a 128MB Compact Flash card.  Data may then be downloaded to the users PC for detailed review.  Analysis is performed utilizing Racepak’s Datalink II software, our professional series software that is easy to learn and easy to utilize.

Lap Times without the Necessity of Trackside Transmitters or Vehicle Mounted Receiver

The G2X Display Dash provides the ability to set the start / finish area while on the track, thus providing immediate access to lap time and lap number data, without the necessity of placing any trackside beacons or installing onboard beacon receivers.  In addition, other monitored items such as lap difference, speed and various other inputs are available for display.

 
Cost comparison of Sensors Required to Obtain Lap & Segment Times, Speed, Distance & Track Mapping
Standard Inertia Data System   G2X
 
•Trackside beacon transmitters:
$300.00 ea.
(min. 4)
  •GPS Antenna

   
•Beacon transmitter tripod mounts:
$25.00 ea.
(min. 4)
   

   
•Vehicle mounted beacon receiver and wiring harness: $175.00    

   
•Vehicle mounted wheel speed sensor and wiring harness: $375.00    

   
•User input of tire diameter to obtain vehicle speed and distance      

   
Total Cost:
Does not include data logger, dash, wiring harness
$1850   Total Cost:
Includes G2X Kit
$943.50
How does the G2X provide timing and track mapping data?

In essence, the GPS data from the G2X allows the user to recreate a GPS plotted trackmap, within the Datalink II software. Following this, the user may then place the start / finish and segment markers at the desired location, around the GPS plotted trackmap. The start / finish and segment markers are GPS plotted points, providing accurate timing data.

This “virtual reality” track is saved within the Datalink II software. Track maps may be recalled upon subsequent visits in order to compare lap and segments times between various test / race sessions.

 
Is the G2X proven?

While items such as the G2X housing and Display Dash are new products, the internal hardware and software designs are based on our track proven professional series GPS data systems. With multimillion dollar sponsorships depending upon performance, if our professional series race teams rely on the information provided by our GPS data systems, so can you.

 
What is the accuracy of the G2X?

Relative Accuracy of GPS Data
When working with GPS signals, it is difficult to quote absolute accuracy, due to a variety of factors. The number of satellites in view, the time of day, the location of the G2X GPS antenna along with natural and man made obstacles can affect accuracy.

However, when using GPS signals for track mapping, lap / segment timing and speed, the G2X and Datalink II software provide exceptionally accurate data, which has been tested and verified in years of on track usage.

Speed
In typical usage, the speed accuracy is approximately .10 MPH / .16 KMH.

Laptime
In multi-year testing of G2X vs. trackside beacon laptimes, a variance of .05 has been noted. GPS based laptimes are dependant only upon vehicle location, and can not be affected by sunlight, signal blockage from other vehicles, power loss to the transmitter, or other problems associated with trackside transmitters.

Track mapping
G2X GPS track maps are created from plotted vehicle location, thus eliminating positional errors that are inherent to inertia based systems. G2X GPS track mapping is capable of easily producing accurate track maps from courses that combine highly bank and extremely flat areas (such as the road course at Daytona), along with standard closed course race tracks. In addition, the G2X can create open course track maps, such as would be used in auto cross, hill climbing and other events where the start and finish are located at two different locations.

 
Racepak Data Systems
949-709 -5555
30402 Esperanza        Rancho Santa Margarita, California 92688
Fax (949) 709-5556         www.racepak.com