Thread: RPM Versus Wear
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Old 10-08-2007, 06:53 PM
SteveWrightNZ SteveWrightNZ is offline
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Join Date: Jun 2006
Location: Bay of Plenty, New Zealand
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Default Re: RPM Versus Wear

If you are referring to a certificated engine, then I do not know.

If you are referring to an automotive engine, then I would say that you should choose your redrive ratio to place the engine in its correct power band. I don't think you will "wear out" an automotive engine in a plane, rather you will more likely damage it from mis-using it, ie trying to force it to make power at an RPM where it was not intended (by using boost ;-)

The same applies for boats - automotive engines either rot, seize up from lack of use, or die from sustained full-power operation rather than actual "wear".

Raising boost to higher than recommended levels *should* bother you, unless it's a diesel, or you have had appropriate race-mods made to the engine, and its' internals strengthened.

Again, I expect certificated aircraft engines are a different story completely, and I have no knowledge of that.

S
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