John - All of the Aim systems are 'almost' capable of this for autocrossing. Road racing is easier, as they use trackside infrared beacons to separate each lap.
My unit is set up with a push button attached to the beacon receiver plug. With the unit turned on (continuous mode), I go to the start line, and wait for the green flag with a finger on the button. When the flag is waved, I press the button and hit the throttle. 'Some time' after the finish line I press the button again. The period between button pushes is viewable as a distinct lap. If I forget to push the button start/finish, the time is longer but I can easily clip out the lap data. If you wish, you can clip off the slop at the end - I measure brake pressure, so can clip until the brake pressure rises at the end of the run, but you could measure speed, or turns (lateral g), or some such. This is a bit of an approximation, as is the fact that the start light is not at the start, so you can't get precise times without a fair amount more effort (or an infrared beacon at both lights, a lot of trouble IMHO). And my track maps, generated by speed and lateral g's, are, with very little tweaking, extremely good. As the Aim software continues to improve (free downloads of updates), these abilities get better and easier. Chris Eckles Atlanta >>Jim Are you saying you can define a start and finish line via GPS and then the system will time your runs? If so how accurate has that been? << ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
