This is one of those situations that can be viewed a couple of different ways. Listen, none of those ways is that great but you can take this situation, you know, the one where your big pulling tractor engine literally barfs a rod through the block down a few paths. You can freak out and blame the engine builder, which is all good, unless you are the engine builder. You can look at it like it was an inevitability and the fact that it happened on the dyno and not after the engine was loaded in the tractor, hauled to a pull, and prepared to hook, or you can silently load up your mangled engine and drink until your eyes bleed. That’s the big three that we can consider.
When we are talking about Hot Farm class pulling, the tractors have to keep their factory look to them, meaning the sheetmetal and frame have to be stock appearing. The engines have to use a factory head and a factory block and are limited to around 600ci. (Some of these rules do vary from organization to organization). Diesel is the only fuel, the engine has to have a stock appearing intake manifold and exhaust manifold and the engines are allowed a single turbo. Said single turbo is usually around 76mm on paper and then there is all kinds of wizardry happening inside of it. But long story short, these are stock style engines that are hot rodded to within an inch of their lives, or in this case, 100hp too much!
The way that this thing starts to sound when loaded down is kind of sickening and then POP…here comes the rod. Doh!