NR-Ceramic Pistons from NIAMA-REISSER are said to have 15 percent less mass than OEM pistons with rings. This translates into an engine that revs higher and faster with less vibrations and emissions and of course more power. Starting the first week in September customers will be able to request Piston Retro-Kits for their engine. Once there is 100 to 150 orders production can start. I hope to try a kit in my 6.9L IDI.
The overall mass per piston is reduced by x> 15%. This in turn reduces engine vibrations and decreases the time it takes your engine to rev up, as well as potentially increasing your maximum engine rpm due to reduced vibrations. The reduction in time to get the engine to a certain rpm or revving up the engine would also cause a reduction in fuel or an increase in fuel economy, due to the fact, that the engine has become more dynamic.
Furthermore, the emissions have been reduced due to tighter tolerances in between the cylinder liner and piston mantel. Despite having no compression rings, the overall compression ratio –in cylinder compression- will have increased after installing the NR-Ceramic Pistons, while not having changed the basic OEM combustion chamber ccm or cmm.
Finally, the engine life expectancy is dramatically increased for there are no longer metal components touching/contacting each other in the cylinder bore. The piston is machined from an engineered composite material which has self-lubricating properties.
Ultimately, it is no longer a requirement to have steel cylinder liners to insure a low wear behavior of steel or stainless steel rings on the all steel sleeve. In recent times, efforts have been made to work with aluminum engine blocks that are not fitted with steel sleeves. To insure the functionality of these applications, currently plasma ceramic micro-coatings have to be applied on the aluminum bore to protect the same from the friction of the contacting steel piston rings.
The low thermal expansion coefficients of the engineered composite material prevent power losses or thermal losses, due to a decreased frictional coefficient during normal operating temperatures.