BTW, the ONLY problem is that you must be the only car in the track. In other case the app isn't useful, for this reason I will order a device by IR.

Have you looked at the Pocket Pit timer setup? It sounds like a pretty good setup. Here's a link to an rctech thread on it.
http://www.rctech.net/forum/electric...lap-timer.html

Thanks my friend. I already knew the post.

I have purchased Pocket Pit one minute ago, but I need to know how to mount the antenna properly (I crash very often...)

Hey guys,

just got my Zeppin Voice Lap Timer yesterday!
Works absolutely flawless! Placed the IR Transmitter on my Servo and it counts the laps perfectly through the painted body! wow!

Will take the baby for a trackday tomorrow.