Quote:
Originally Posted by Asinar
NOTE: The following is written by a NOT mechanical engineer.
If, in the course of your testing, you find the engine will have best longevity if limited to 4k for the first 40 hours, would you tell the user exactly that? We know full well that compliance to break-in instructions is poor. You don't want to create a situation where OCD-level compliance to instructions is mandatory for a reliable engine. At worst, you'd give them a conservative set of restrictions so that people who like to toe the line are still covered.
Now that the science of break-in is more fully understood than it was 10 or 20 years ago (when it was entirely superstition), you'd be able to design the engine such that the critical phase of the break-in period is performed at the factory (or at least under the control of the manufacturer). After that, the user is only responsible for not breaking it.
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I definitely agree. The same concept applies to all facets of engineering...If you need to build an elevator to support 1000 pounds, you build it to support 3000 pounds and put a sign up that says "NO MORE THAN 1000 POUNDS"
Its called a safety factor. With that in mind, do you really want to test those limits? I personally do not as I want to keep this car as long as possible without major repairs...If redlining it the second it comes off the line helped to settle any seals or gaskets, my guess is they wouldn't recommend you do the exact opposite (why would they want your car to break?)
I appreciate all views/opinions on the matter, it is an endless discussion. My ONLY point to all of this is simple: You can either listen to the millions of people who have personal opinions/experiences/etc on the matter, or listen to the people who created the engine...I picked the latter as it seemed the most logical :happy0180: