I mounted Spektrum telemetry on my 710 a few years back. I mounted the RPM target on the back of the flywheel. The unit, I velcroed on the top plate. I raced with telemetry for a few races, then took it off. I don't know if they changed the RPM sensor but it was a bracket and sensor that bolted to the motor mount.
I've been running the 720 for years and I haven't seen anyone else install telemetry on their cars.
Here is my (then) newly built 710 with the telemetry module.
Herolin <---Traded my Airtronics for an Ipad and Laptop...
Soon to be GHETTOPRINCIPAL..
Thanks, but I cannot mount it on this bracket, coz I Don't have enough place...
I PUT A REFLECTIVE STRIP ON THE FRONT DIFF AND MOUNTED THE SENSOR ABOVE IT. DIDN'T WORK WELL, BUT I HAVEN'T PLAYED WITH IT MUCH AND PERHAPS MOVING THE SENSOR POSITION WOULD SOLVE THE PROBLEM.THE REAL VALUE TO ME IS THE ENGINE TEMP AND CAR BATT VOLTAGE. THE LAP TIMER WORKS. IF YOUR PIT CREW HAD A REMOTE, THEY COULD MONITOR LAP TIMES AND ENGINE TEMP FOR MAX PERFORMANCE AND WARNING OF ENGINE GOING LEAN.