Quote:
Originally Posted by matlough
Just a quick thought,
Do you think they have a run-in period for F1, BTCC engines etc etc.?
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And how long do you think they use an F1 engine before a rebuild ? Hours.
And I would guess that the BTCC engines are blueprinted to exact specs with the best settings within the rules.
Either way, both will be handbuilt. Neither are expected to run in stop-go traffic and go for thousands of miles, and last years.
I've personally rebuilt a lot of my old engines, and just don't buy this simplistic "Drive it like you stole it" philosophy that seems to be adopted by those youngsters (most of them with the "I lease, I don't give a damn") who search the most power.
You can certainly use a new engine and start to put load on it, but do it sensibly. Let everything warm up, and let engine parts bed and settle in sympathetically. Just think of it as a human warming up before exercise, warm up before going for it.
If, as these DILYSI guys state, BMWs are already run-in, how come so many people state that the engine loosens up with more miles on it (especially the 335D) ? What is happening there ??
I'd much rather have a smooth, long lasting engine, than one that has been thrashed since day 1.
D.