----- Original Message -----
Sent: Monday, May 02, 2005 3:25 PM
Subject: [FlyRotary] Re: Renesis Build
Options
Bruce is as great fellow to do business with based on my
experience. Since
I elected not to have either done on my engine,
I can't comment on their
value. Perhaps if I had the rotors
ceramic coated the coolant temps would
be higher and oil temps lower
but, my oil temp was at 160-180F and my
coolant temps were at 200-210F,
so I don't think ceramic coating would have
done me much good. My
understanding is that it shields the rotors more than
any other
component from the heat of combustion - so would probably help
keep oil
temps cooler.
Ed and ALL,
One advantage of ceramic coating on the rotary might be to keep
the heat of combustion concentrated in the combustion chamber. The biggest
problem the rotary has is excessive wall area for it's chamber size. While it
may or may not help temps, I don't know, it should improve the overall
efficiency.
Bill Jepson
Bill, not quite certain how it do that. I can understand that the
rotor being coated would tend to lessen the amount of heat the rotor would
absorb and therefore keep the temp of the oil ,which cools the rotor,
down. But, it then seems that heat has to go/do something. I agree
there should be some increase in overall efficiency by keeping the temperature
of the combustion chamber elevated. However, I believe that heat has to
go somewhere and I think you would see a rise in coolant temps. But,
that's just speculation on my part. Not saying there aren't some
advantages to having them coated - but if like most things there are probably
some disadvantages as well.
Ed A