On Feb 4, 6:16*pm, Brian Whatcott wrote:
Peter Dohm wrote:
... if
you are willing to accept the as-delivered reliability of the automotive
FADEC systems, which have become very good, then the primary issue would be
lead fouling of the oxygen sensor...
Peter

* Yes.
It is not contentious to mention that the longevity of auto engines has
increased by leaps and bounds since the advent of FADECs.
Longevity does not equate to reliability exactly, but electronic
ignition has been helpful, I believe crucial in fact, and mechanical
design of self adjusting lifters is no longer a black-art. *It seems to
me that the water-cooled engine can be made to cope with the high
rejected-heat associated with high throttle operation. There is still a
question in my mind about the heat-shedding arrangements for lube oil
but an oil radiator is nothing new, and exhaust valves would benefit
from some premium qualities.

Brian W

You are right in your thoughts,,, I fly one almost every day to prove
your point....


Ben
www.haaspowerair.com

http://video.google.com/videoplay?do...50730841&hl=en