When i first started on my journey there was a lot of talk about a 50 cent part on a race car that lost a hi paying race. When engines didnt cost as much they rarely got tore down for a checkup. No body ever had a spare engine either. So when that keeper comes off at the end of the racewith out u knowing it, u start the next race with a engine set up for failure. I heard that the 3 car was running 1 million dollar engines, aaand they still ttook them apart after each race. The hotter the engine the more u need to keep an eye on it. Regardless of how much money u threw at it. Go watch some racing and see how much hi dollar stuff the waste. Hope this helps, there is a lot I still dont understand.