Yes...you are correct. Once we swap out one part for a different one....or in grampi's case....an engine that want's to hit RPM's in the "It's off the chart" level.....then what's to be expected is damage....due to new stresses that the rig was not designed for.

I remember years ago...one of my nephews who bought a small framed Chevy car (name escapes me at the present) and put a bored out....blue printed and balanced 350 engine that was producing around 500 horse into it. Since we lived miles apart I seldom saw how his venture was coming along until one day I stopped by for a visit. Here is what I remember:

I pulled into the driveway next to his Chevy Vega (Amazing I can remember that) and saw him trying to start the engine. At the time...it had no exhaust system attached to it....everything on the car was stock....even the drive line.....and the engine was a beast to kick over. He had two batteries hooked up for starting....and finally it fired up. MAN WAS THAT THING LOUD!!!! Well....after a few minutes of tweaking the carburetor.....he decided to get behind the wheel and take it around the block. I remember to this day saying to him.....Uhhhh...gee Jim.....won't all of that torque ruin the drive line? Awwww....heck no....I'll take it easy. As he backed out of the driveway....then put it into first gear.....I think he got about 20 feet when the entire drive shaft broke away from the u-joints and it rolled around on the road. He looked at me like he was in total shock and asked if I could help him roll the car back into the drive way.

The big difference between that Chevy Vega and our little nitro rigs is when they crash....or break a part....we can simply pick them up....put them in the truck....and drive home and fix them back up with little time invested. Now....when it comes to the money part....that can be a different story.