<< C'mon everyone, let's get out of the dark ages.
 > In a few months, I may have a conversion kit (cheap) for
 > experimentals that any decent machine shop can employ.
 > Starting with O-320 & O-360 Lycs.
 > Nuff said!
 > Archie >>

Could that be a stepped gap molly filled top ring? a barrel faced dykes
second ring with a gapless spacer, like a total seal?  I would use a

spring

powered cast oil scraper. Looking for zero leakdown? Almost no drag.

What

will your kit include?
Lynn E Hanover

No, I spent time with those, and was not "totally" happy with the results.
I generated my own ring set, (still room for improvement), through a
lot of R&D.
Cast rings are on their way out, but the improvement in aircraft engines
is substantial to warrant their application.
My first engine was an O-200 in which I welded the ring grooves, relocated
and recut to other sizes, and had planned on providing these as well,
but cannot find a manufacturer for small quantity. With my poor connections
in Brazil, cannot obtain unfinished factory-type pistons.
At present, kit will include Rings, Gaskets & Seals, Guides, Prep
instructions,
etc., and will be geared to work with existing pistons. (No chrome
cylinders.)
On hold for the moment, until shop work is caught up, or unless we discover
long term negativity.
Archie

 
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