Originally Posted by
lostinbaja
Today I took my X-Ray T3 to the track for it's first race and never made it out of the pits. The car has a Tekin RS Pro speedo powering a Speed Passion Competition 17.5 3.0 motor. I have had the car to the track for gearing, programming and motor temp testing. The motor has never seen temps anywhere near 150f and it had good speed, so I thought I was ready to race.
I installed the battery, the body, turned the radio on, then the speedo. Before I left the pits I pulled the trigger to about 1/4 throttle just to make sure the car was on and functioning. The motor hardly built any rpm then the driveline of the car locked up. Upon further inspection I determined the rotor in the motor exploded.
I bought the Speed Passion because I heard good things about them and as soon as I determined the problem, I heard from more than a few people in the pits that that model motor is notorious for scattering rotors, is this a fact?
Since I need to purchase another motor I would hate to make the same mistake again.
Been running my 17.5 v3 sp motor a long time and had zero issues. I've seen rotors explode though in all brands, not just one.