Originally Posted by
Chris Peralta
How much fuel did you put thru the engine prior to racing with it? That sounds like something that happens if your trying to run the engine at too many RPM's while it is still very tight. These engines take more than 5 or 6 tanks break in before you can lean it out enough to really sing down the straight away. When the rod broke both times did it happen on a straight away, or maybe while reving in the air, or even while the car was upside down?
Its never the rod its the piston the bottom half of it. The first time was in a rythem section and today it was coming out of a corner. Both times l ran 1 Quart of fuel before l even starting to lean them out. Idled 5 tanks starting at 150, 160, 170, 180, 190 ect then put it on the track and basically finished like you would a traxxis motor no long straights and on and off the throttle getting longer and longer pulls. This is how l have done ALL of my engine the same way and never any problems.
Regards,
Ashton