In car timing transponders

[SoCal Rebell]

I think most are using the Hot Lap timers, I know I am. You can check them out at www.supersonicracing.com

 

[99t1]

the system at Viper Days is designed for racing and can track multiple cars and print out accurate results (except for Sebring). For just your own lap times try Hot Lap hot lap

 

[Viper Wizard]

Mount them in the nose!

I hear those famous words- "WON BY A NOSE"