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Old December 11th 07, 01:51 AM posted to rec.aviation.homebuilt
Kyle Boatright
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Posts: 578
Default What/how does compression ratio affect an engine?


"Matt Whiting" wrote in message
...
Kyle Boatright wrote:

Max RPM is the same for all 3 engines, and the only wear difference
should be on the connecting rods. Apparently the difference isn't enough
to change the TBO, which is a theoretical figure anyway.


Connecting rods don't wear. Their bearings wear, but the con-rods don't
wear. I doubt the slight difference in force on the connecting rod and
crank bearings is enough to cause a measurable difference in wear.


You're correct. My post was hastily composed and clearly didn't pass peer
review. ;-).

KB


Matt