Ringed pros and cons?
The choice of ringed or lapped/honed engine has little to do with power or longevity. At the average sport engine speeds or rpm there is little to choose between them. However things change with high performance high revving engines. The ring has some play in its groove. At the higher rpm the movement of the ring cannot keep up with the piston speed. It gets battered up and down by the piston, cannot take the beating and goes into self destruct mode.
Ed S