Quote:
Originally Posted by The Radium King
that makes sense. interesting read here too:
Bore scoring on refurbished engine - PistonHeads
where they suggest piston and cylinder coating changes may also play a role. they also state that low rpm, high torque situations are the culprit (situations facilitated by improvements to variocam, and another reason why forced induction cars have such finite lifetimes); I presume your increased displacement builds offset potential damage from increased rod angle by using improved linings? |
Our exclusive use of Nikisil plating in all engines eliminates cylinder scoring and accelerated wear. This is not a coating, like others, it is a very hard, wear resistant, friction resistant plating process that couples Nickel, Silicon and Carbide into one super durable wear surface.
This is not new, Porsche has utilized it for decades with all the engines that do not fail, the ones without radiators and even the Mezger based GT3 and TT engine use it, along with the Cayenne TT engines.
Its just expensive.