Archie wrote:

 (But I still don't think that I can
 make myself put piston and rings in dry!)

Ken Powell

The engines we build are running 6-800gr finish, with no perceptible
cross-hatching. The rings are pre-lapped, and are fully seated within
two minutes on the dyno. We only use engine oil on the rings, with
a light coat of assy. lube on the piston skirts.
As we are getting away from cast iron based rings, and going to steel,
this is becoming more important.

DO NOT use a molybdenum disulfide lube on the rings. It is a most
effective preventative of ring seating. (especially on the finer finishes).
A moly based, high pressure lube is best used on flat tappet cams,
and some other areas.

Archie
Archie's Racing Service
(In beautiful downtown NH)

 
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