Performance Testing

 Our dynamic testing is performed on a closed test track. What we do there can be compartmentalized into three basic categories: straight-line performance, cornering/handling, and top speed. The heart of our test equipment is the Racelogic VBOX GPS data logger. VBOX uses the U.S. government's GPS satellite constellation to record speed, position, and acceleration. We have various models of this data logger in our fleet, ranging from 10-Hz units (that's 10 points of data per second) to 100 Hz, and one of them even uses the Russian GLONASS satellite system in conjunction with GPS to deliver speed accuracy within 0.1 mph and positional accuracy within about six feet. Piggybacking it with a GPS base station (a device used to correct GPS positional inaccuracy) and a VBOX 3iSL (100Hz) can deliver positional accuracy to within one inch. The VBOX is what we use to measure acceleration times, braking, and top speed. Our VBOX 3i units (we have four of them) also have the ability to log vehicle data such as steering angle, engine speed, and throttle position through the vehicle's CAN communication interface.