Right eat this
As a normal ring wears, the gap opens up, allowing more combustion gases to escape (blow-by). The Total Seal Gapless® ring solves the problem. Its patented design incorporates a two-part interlocking ring that closes off the gap and provides a better or improved seal between the piston and cylinder. As the Total Seal ring wears, the gap stays sealed, even after dozens of grueling races.
Blow-by is a thief. It steals power, it shortens the lubrication life of the crankcase oil, it causes parts to wear out prematurely, and it continues to reduce the power as the ring gap increases in size. Big deal? Yes it is. It is why Total Seal Inc. developed the only true Gapless® piston ring. The Gapless® ring consists of two pieces, a ring and a rail. The rail has neutral tension and the ring provides the tension for the rail. The ring is taper faced and protrudes initially beyond the rail. When the ring seats on the cylinder that rail makes contact and the design allows no leak or path for blow-by. Because the ring is machined to have a step to accept the rail, making it lower tension and the rail is a neutral tension rail receiving it's tension from the ring, it is a low tension 2nd ring. The Gapless® piston ring is so constructed that the blow-by is reduced to 2% or less and remains at this basic level throughout the the life of the ring set. Knowing this it is obvious that the oil runs cooler, is not contaminated, does not need changing as often, does not loose it's lubricating ability, and actually permits longer more durable engine life in engines used for all purposes.
Gases passing though the top ring are stopped by the Gapless® ring rather than allowing the gas to continue leaking form the combustion chamber this is where the extra power is happening. Does the Gapless® ring wear and get larger ring gaps? Yes! However, the design of the ring is such that is spite of this, blow-by is not permitted. Ring life is enhanced with Gapless® ring sets and power output remains consistent throughout the engine life without power or torque loss by growing end gaps. In some high performance high RPM engines, the ring gap of the top ring may in some engine sizes need to be gap orifice tuned to control top ring stability. The Gapless® ring set seals so well that it is necessary in some engine types to tune the top and second rings together to maintain stability.
* References made to blow-by are measurements made in actual running dynamometer tests on engines with only the second ring (conventional ring) replaced by Total Seal. Inc. Gapless® rings.