I replaced an OS .28 in my RC8T with a cobra X1. Loved the engine, awsome power across the board. Ran about 3-4 litres though it than gave it a race tune. Had a few tunning issues that were to do with the pipe I was using.Refitted the axe 2050 and the engine was running sweet. Went to a 2 day race,we were able to get a couple of hours practice in at the track the day before the race,engine was running strong with more than enough power and great run times temps were around 215/220F. Started the engine and run it for a couple of minutes on the strater box before driving around the parking area to get some temp into the motor. Engine stopped dead and had locked up. Pulled the exhaust and back plate off and found that the rod had broken at the crank. Pulled the motor down and found the crank was broken and the case cracked. As i was really happy with the engine prior to failure I am looking at buying another one but have some reservations due to the rod failures. I have read the threads here and it seams that the new axe rods have fixed the issue. Info also refers to a Go tech rod as a suitable fix. What is the part number for the Go rod. Has anyone had any failures due to the new rod breaking. I am not concerned with the bushes wearing out after 3 or so gallons as the rod is something that I replace after that much fuel.