I have must received a bad engine.

I broke in my engine Monday and Tuesday (8+ tanks) and everything was going good. I never did a hi-speed run until the last Saturday. We had a race and in my first heat race I flamed out at the 4 minute mark. For the second heat we fired up the engine and I took off the pit stand make it 15 feet and it flamed out again. So we started it again same thing... We tried this 2 more times and same result...

Well I came home and took apart the engine and noticed the exhust port on the sleeve has a small chip causing a groove in the piston and sleeve. I called them today and the customer service guys was not that helpful. said I must sent the engine in all together and they will see what it was.. Anyone else had this problem?

Ordering a new piston and sleeve...Oh well