What proof is there that this system is not snake oil? The engine is rotated (opposite of normal rotation) in a hot oil bath.. The conrod isn’t loaded properly as if it were under combustion pressure, the crankpin as well, the temperature differential in the top of the liner and at the exhaust port isn’t present which means the liner isn’t expanding the same as it would under normal operating conditions... Sounds really fishy to many....

Some guys swear by it, but many many people in my circle claim it’s snake oil and a waste of time and money. Where’s the proof? Concrete scientific proof?

We have a thread on this already, and most top racers use this to break in their motors as well...

Look at all the work Roelof shows, its pretty clear and looks A+

Project: Break in Dutch machine

Project: Break in Dutch machine

New break-in method

Break-in Dutch

There are at least three other threads on the topic and we don't more. This one is now locked.